Exemple #1
0
int bus_add_driver(struct device_driver *drv)
{
	struct bus_type *bus;
	struct driver_private *priv;
	int error = 0;

	bus = bus_get(drv->bus);
	if (!bus)
		return -EINVAL;

	pr_debug("bus: '%s': add driver %s\n", bus->name, drv->name);

	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		error = -ENOMEM;
		goto out_put_bus;
	}
	klist_init(&priv->klist_devices, NULL, NULL);
	priv->driver = drv;
	drv->p = priv;
	priv->kobj.kset = bus->p->drivers_kset;
	error = kobject_init_and_add(&priv->kobj, &driver_ktype, NULL,
				     "%s", drv->name);
	if (error)
		goto out_unregister;

	if (drv->bus->p->drivers_autoprobe) {
		error = driver_attach(drv);
		if (error)
			goto out_unregister;
	}
	klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
	module_add_driver(drv->owner, drv);

	error = driver_create_file(drv, &driver_attr_uevent);
	if (error) {
		printk(KERN_ERR "%s: uevent attr (%s) failed\n",
			__func__, drv->name);
	}
	error = driver_add_attrs(bus, drv);
	if (error) {
		
		printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
			__func__, drv->name);
	}

	if (!drv->suppress_bind_attrs) {
		error = add_bind_files(drv);
		if (error) {
			
			printk(KERN_ERR "%s: add_bind_files(%s) failed\n",
				__func__, drv->name);
		}
	}

	kobject_uevent(&priv->kobj, KOBJ_ADD);
	return 0;

out_unregister:
	kobject_put(&priv->kobj);
	kfree(drv->p);
	drv->p = NULL;
out_put_bus:
	bus_put(bus);
	return error;
}
Exemple #2
0
void usb_function_set_enabled(struct usb_function *f, int enabled)
{
	f->disabled = !enabled;
	CSY_DBG2("name=%s, enabled=%d\n", f->name, enabled);
	kobject_uevent(&f->dev->kobj, KOBJ_CHANGE);
}
Exemple #3
0
void usb_function_set_enabled(struct usb_function *f, int enabled)
{
	f->disabled = !enabled;
	kobject_uevent(&f->dev->kobj, KOBJ_CHANGE);
}
Exemple #4
0
int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num,
			   struct kobject *kobj)
{
	struct hfi1_pportdata *ppd;
	struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
	int ret;

	if (!port_num || port_num > dd->num_pports) {
		dd_dev_err(dd,
			   "Skipping infiniband class with invalid port %u\n",
			   port_num);
		return -ENODEV;
	}
	ppd = &dd->pport[port_num - 1];

	ret = kobject_init_and_add(&ppd->sc2vl_kobj, &hfi1_sc2vl_ktype, kobj,
				   "sc2vl");
	if (ret) {
		dd_dev_err(dd,
			   "Skipping sc2vl sysfs info, (err %d) port %u\n",
			   ret, port_num);
		goto bail;
	}
	kobject_uevent(&ppd->sc2vl_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->sl2sc_kobj, &hfi1_sl2sc_ktype, kobj,
				   "sl2sc");
	if (ret) {
		dd_dev_err(dd,
			   "Skipping sl2sc sysfs info, (err %d) port %u\n",
			   ret, port_num);
		goto bail_sc2vl;
	}
	kobject_uevent(&ppd->sl2sc_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->vl2mtu_kobj, &hfi1_vl2mtu_ktype, kobj,
				   "vl2mtu");
	if (ret) {
		dd_dev_err(dd,
			   "Skipping vl2mtu sysfs info, (err %d) port %u\n",
			   ret, port_num);
		goto bail_sl2sc;
	}
	kobject_uevent(&ppd->vl2mtu_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->pport_cc_kobj, &port_cc_ktype,
				   kobj, "CCMgtA");
	if (ret) {
		dd_dev_err(dd,
			   "Skipping Congestion Control sysfs info, (err %d) port %u\n",
			   ret, port_num);
		goto bail_vl2mtu;
	}

	kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD);

	ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr);
	if (ret) {
		dd_dev_err(dd,
			   "Skipping Congestion Control setting sysfs info, (err %d) port %u\n",
			   ret, port_num);
		goto bail_cc;
	}

	ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, &cc_table_bin_attr);
	if (ret) {
		dd_dev_err(dd,
			   "Skipping Congestion Control table sysfs info, (err %d) port %u\n",
			   ret, port_num);
		goto bail_cc_entry_bin;
	}

	dd_dev_info(dd,
		    "Congestion Control Agent enabled for port %d\n",
		    port_num);

	return 0;

bail_cc_entry_bin:
	sysfs_remove_bin_file(&ppd->pport_cc_kobj,
			      &cc_setting_bin_attr);
bail_cc:
	kobject_put(&ppd->pport_cc_kobj);
bail_vl2mtu:
	kobject_put(&ppd->vl2mtu_kobj);
bail_sl2sc:
	kobject_put(&ppd->sl2sc_kobj);
bail_sc2vl:
	kobject_put(&ppd->sc2vl_kobj);
bail:
	return ret;
}
Exemple #5
0
/*
 * device functions
 */
static int uio_dev_add_attributes(struct uio_device *idev)
{
    int ret;
    int mi, pi;
    int map_found = 0;
    int portio_found = 0;
    struct uio_mem *mem;
    struct uio_map *map;
    struct uio_port *port;
    struct uio_portio *portio;

    for (mi = 0; mi < MAX_UIO_MAPS; mi++) {
        mem = &idev->info->mem[mi];
        if (mem->size == 0)
            break;
        if (!map_found) {
            map_found = 1;
            idev->map_dir = kobject_create_and_add("maps",
                                                   &idev->dev->kobj);
            if (!idev->map_dir)
                goto err_map;
        }
        map = kzalloc(sizeof(*map), GFP_KERNEL);
        if (!map)
            goto err_map;
        kobject_init(&map->kobj, &map_attr_type);
        map->mem = mem;
        mem->map = map;
        ret = kobject_add(&map->kobj, idev->map_dir, "map%d", mi);
        if (ret)
            goto err_map;
        ret = kobject_uevent(&map->kobj, KOBJ_ADD);
        if (ret)
            goto err_map;
    }

    for (pi = 0; pi < MAX_UIO_PORT_REGIONS; pi++) {
        port = &idev->info->port[pi];
        if (port->size == 0)
            break;
        if (!portio_found) {
            portio_found = 1;
            idev->portio_dir = kobject_create_and_add("portio",
                               &idev->dev->kobj);
            if (!idev->portio_dir)
                goto err_portio;
        }
        portio = kzalloc(sizeof(*portio), GFP_KERNEL);
        if (!portio)
            goto err_portio;
        kobject_init(&portio->kobj, &portio_attr_type);
        portio->port = port;
        port->portio = portio;
        ret = kobject_add(&portio->kobj, idev->portio_dir,
                          "port%d", pi);
        if (ret)
            goto err_portio;
        ret = kobject_uevent(&portio->kobj, KOBJ_ADD);
        if (ret)
            goto err_portio;
    }

    return 0;

err_portio:
    for (pi--; pi >= 0; pi--) {
        port = &idev->info->port[pi];
        portio = port->portio;
        kobject_put(&portio->kobj);
    }
    kobject_put(idev->portio_dir);
err_map:
    for (mi--; mi>=0; mi--) {
        mem = &idev->info->mem[mi];
        map = mem->map;
        kobject_put(&map->kobj);
    }
    kobject_put(idev->map_dir);
    dev_err(idev->dev, "error creating sysfs files (%d)\n", ret);
    return ret;
}
int mdp4_dsi_video_on(struct platform_device *pdev)
{
	int dsi_width;
	int dsi_height;
	int dsi_bpp;
	int dsi_border_clr;
	int dsi_underflow_clr;
	int dsi_hsync_skew;

	int hsync_period;
	int hsync_ctrl;
	int vsync_period;
	int display_hctl;
	int display_v_start;
	int display_v_end;
	int active_hctl;
	int active_h_start;
	int active_h_end;
	int active_v_start;
	int active_v_end;
	int ctrl_polarity;
	int h_back_porch;
	int h_front_porch;
	int v_back_porch;
	int v_front_porch;
	int hsync_pulse_width;
	int vsync_pulse_width;
	int hsync_polarity;
	int vsync_polarity;
	int data_en_polarity;
	int hsync_start_x;
	int hsync_end_x;
	uint8 *buf;
	unsigned int buf_offset;
	int bpp, ptype;
	static bool first_video_on = true;
	struct fb_info *fbi;
	struct fb_var_screeninfo *var;
	struct msm_fb_data_type *mfd;
	struct mdp4_overlay_pipe *pipe;
	int ret = 0;
	int cndx = 0;
	struct vsycn_ctrl *vctrl;

	vctrl = &vsync_ctrl_db[cndx];
	mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev);

	if (!mfd)
		return -ENODEV;

	if (mfd->key != MFD_KEY)
		return -EINVAL;

	vctrl->mfd = mfd;
	vctrl->dev = mfd->fbi->dev;

	/* mdp clock on */
	mdp_clk_ctrl(1);

	fbi = mfd->fbi;
	var = &fbi->var;

	bpp = fbi->var.bits_per_pixel / 8;
	buf = (uint8 *) fbi->fix.smem_start;
	buf_offset = calc_fb_offset(mfd, fbi, bpp);

	if (first_video_on)
		first_video_on = false;
	else {
		if (mfd->ref_cnt == 0) {
			//clean all pipes before base pipe and layer pipes are allocated
			int ndx;
			for (ndx=1; ndx<4; ndx++) {
				pipe = mdp4_overlay_ndx2pipe(ndx);
				if (pipe && pipe->pipe_used)
					mdp4_overlay_unset(mfd->fbi, ndx);
			}
		}
	}

	if (vctrl->base_pipe == NULL) {
		ptype = mdp4_overlay_format2type(mfd->fb_imgType);
		if (ptype < 0)
			printk(KERN_INFO "%s: format2type failed\n", __func__);
		pipe = mdp4_overlay_pipe_alloc(ptype, MDP4_MIXER0);
		if (pipe == NULL) {
			printk(KERN_INFO "%s: pipe_alloc failed\n", __func__);
			return -EBUSY;
		}
		pipe->pipe_used++;
		pipe->mixer_stage  = MDP4_MIXER_STAGE_BASE;
		pipe->mixer_num  = MDP4_MIXER0;
		pipe->src_format = mfd->fb_imgType;
		mdp4_overlay_panel_mode(pipe->mixer_num, MDP4_PANEL_DSI_VIDEO);
		ret = mdp4_overlay_format2pipe(pipe);
		if (ret < 0)
			printk(KERN_INFO "%s: format2type failed\n", __func__);

		pipe->ov_blt_addr = 0;
		pipe->dma_blt_addr = 0;
		vctrl->base_pipe = pipe; /* keep it */
		mdp4_init_writeback_buf(mfd, MDP4_MIXER0);

	} else {
		pipe = vctrl->base_pipe;
	}

#ifdef CONTINUOUS_SPLASH
	/* MDP cmd block enable */
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);

	if (!(mfd->cont_splash_done)) {
		mfd->cont_splash_done = 1;
		mdp4_dsi_video_wait4dmap_done(0);
		MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 0);
		mdelay(20);
		mipi_dsi_controller_cfg(0);
		mfd->cont_splash_done = 1;
		mdp_clk_ctrl(0);
	}
#endif

	pipe->src_height = fbi->var.yres;
	pipe->src_width = fbi->var.xres;
	pipe->src_h = fbi->var.yres;
	pipe->src_w = fbi->var.xres;
	pipe->src_y = 0;
	pipe->src_x = 0;
	pipe->dst_h = fbi->var.yres;
	pipe->dst_w = fbi->var.xres;
	pipe->srcp0_ystride = fbi->fix.line_length;
	pipe->bpp = bpp;

	if (mfd->display_iova)
		pipe->srcp0_addr = mfd->display_iova + buf_offset;
	else
		pipe->srcp0_addr = (uint32)(buf + buf_offset);

	pipe->dst_h = fbi->var.yres;
	pipe->dst_w = fbi->var.xres;

	mdp4_overlay_mdp_pipe_req(pipe, mfd);

	atomic_set(&vctrl->suspend, 0);

	mdp4_overlay_dmap_xy(pipe);	/* dma_p */
	mdp4_overlay_dmap_cfg(mfd, 1);
	mdp4_overlay_rgb_setup(pipe);
	mdp4_overlayproc_cfg(pipe);

	mdp4_overlay_reg_flush(pipe, 1);
	mdp4_mixer_stage_up(pipe);
	mdp4_mixer_stage_commit(pipe->mixer_num);
	/*
	 * DSI timing setting
	 */
	h_back_porch = var->left_margin;
	h_front_porch = var->right_margin;
	v_back_porch = var->upper_margin;
	v_front_porch = var->lower_margin;
	hsync_pulse_width = var->hsync_len;
	vsync_pulse_width = var->vsync_len;
	dsi_border_clr = mfd->panel_info.lcdc.border_clr;
	dsi_underflow_clr = mfd->panel_info.lcdc.underflow_clr;
	dsi_hsync_skew = mfd->panel_info.lcdc.hsync_skew;
	dsi_width = mfd->panel_info.xres +
		mfd->panel_info.lcdc.xres_pad;
	dsi_height = mfd->panel_info.yres +
		mfd->panel_info.lcdc.yres_pad;
	dsi_bpp = mfd->panel_info.bpp;

	hsync_period = hsync_pulse_width + h_back_porch + dsi_width
				+ h_front_porch;
	hsync_ctrl = (hsync_period << 16) | hsync_pulse_width;
	hsync_start_x = h_back_porch + hsync_pulse_width;
	hsync_end_x = hsync_period - h_front_porch - 1;
	display_hctl = (hsync_end_x << 16) | hsync_start_x;

	vsync_period =
	    (vsync_pulse_width + v_back_porch + dsi_height + v_front_porch);
	display_v_start = ((vsync_pulse_width + v_back_porch) * hsync_period)
				+ dsi_hsync_skew;
	display_v_end =
	  ((vsync_period - v_front_porch) * hsync_period) + dsi_hsync_skew - 1;

	if (dsi_width != var->xres) {
		active_h_start = hsync_start_x + first_pixel_start_x;
		active_h_end = active_h_start + var->xres - 1;
		active_hctl =
		    ACTIVE_START_X_EN | (active_h_end << 16) | active_h_start;
	} else {
		active_hctl = 0;
	}

	if (dsi_height != var->yres) {
		active_v_start =
		    display_v_start + first_pixel_start_y * hsync_period;
		active_v_end = active_v_start + (var->yres) * hsync_period - 1;
		active_v_start |= ACTIVE_START_Y_EN;
	} else {
		active_v_start = 0;
		active_v_end = 0;
	}

	dsi_underflow_clr |= 0x80000000;	/* enable recovery */
	hsync_polarity = 0;
	vsync_polarity = 0;
	data_en_polarity = 0;

	ctrl_polarity =
	    (data_en_polarity << 2) | (vsync_polarity << 1) | (hsync_polarity);

	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x4, hsync_ctrl);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x8, vsync_period * hsync_period);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0xc,
				vsync_pulse_width * hsync_period);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x10, display_hctl);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x14, display_v_start);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x18, display_v_end);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x1c, active_hctl);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x20, active_v_start);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x24, active_v_end);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x28, dsi_border_clr);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x2c, dsi_underflow_clr);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x30, dsi_hsync_skew);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x38, ctrl_polarity);
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);

	mdp_histogram_ctrl_all(TRUE);

	if (!vctrl->sysfs_created) {
		ret = sysfs_create_group(&vctrl->dev->kobj,
			&vsync_fs_attr_group);
		if (ret) {
			pr_err("%s: sysfs group creation failed, ret=%d\n",
				__func__, ret);
			return ret;
		}

		kobject_uevent(&vctrl->dev->kobj, KOBJ_ADD);
		pr_debug("%s: kobject_uevent(KOBJ_ADD)\n", __func__);
		vctrl->sysfs_created = 1;
	}

	return ret;
}
static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
						u32 event, void *data)
{
	struct acpi_processor *pr;
	struct acpi_device *device = NULL;
	int result;


	switch (event) {
	case ACPI_NOTIFY_BUS_CHECK:
	case ACPI_NOTIFY_DEVICE_CHECK:
		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
		"Processor driver received %s event\n",
		       (event == ACPI_NOTIFY_BUS_CHECK) ?
		       "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"));

		if (!is_processor_present(handle))
			break;

		if (acpi_bus_get_device(handle, &device)) {
			result = acpi_processor_device_add(handle, &device);
			if (result)
				printk(KERN_ERR PREFIX
					    "Unable to add the device\n");
			break;
		}

		pr = acpi_driver_data(device);
		if (!pr) {
			printk(KERN_ERR PREFIX "Driver data is NULL\n");
			break;
		}

		if (pr->id >= 0 && (pr->id < nr_cpu_ids)) {
			kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
			break;
		}

		result = acpi_processor_start(device);
		if ((!result) && ((pr->id >= 0) && (pr->id < nr_cpu_ids))) {
			kobject_uevent(&device->dev.kobj, KOBJ_ONLINE);
		} else {
			printk(KERN_ERR PREFIX "Device [%s] failed to start\n",
				    acpi_device_bid(device));
		}
		break;
	case ACPI_NOTIFY_EJECT_REQUEST:
		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
				  "received ACPI_NOTIFY_EJECT_REQUEST\n"));

		if (acpi_bus_get_device(handle, &device)) {
			printk(KERN_ERR PREFIX
				    "Device don't exist, dropping EJECT\n");
			break;
		}
		pr = acpi_driver_data(device);
		if (!pr) {
			printk(KERN_ERR PREFIX
				    "Driver data is NULL, dropping EJECT\n");
			return;
		}

		if ((pr->id < nr_cpu_ids) && (cpu_present(pr->id)))
			kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
		break;
	default:
		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
				  "Unsupported event [0x%x]\n", event));
		break;
	}

	return;
}
Exemple #8
0
int mdp_lcdc_on(struct platform_device *pdev)
{
	int lcdc_width;
	int lcdc_height;
	int lcdc_bpp;
	int lcdc_border_clr;
	int lcdc_underflow_clr;
	int lcdc_hsync_skew;

	int hsync_period;
	int hsync_ctrl;
	int vsync_period;
	int display_hctl;
	int display_v_start;
	int display_v_end;
	int active_hctl;
	int active_h_start;
	int active_h_end;
	int active_v_start;
	int active_v_end;
	int ctrl_polarity;
	int h_back_porch;
	int h_front_porch;
	int v_back_porch;
	int v_front_porch;
	int hsync_pulse_width;
	int vsync_pulse_width;
	int hsync_polarity;
	int vsync_polarity;
	int data_en_polarity;
	int hsync_start_x;
	int hsync_end_x;
	uint8 *buf;
	int bpp;
	uint32 dma2_cfg_reg;
	struct fb_info *fbi;
	struct fb_var_screeninfo *var;
	struct msm_fb_data_type *mfd;
	uint32 dma_base;
	uint32 timer_base = LCDC_BASE;
	uint32 block = MDP_DMA2_BLOCK;
	int ret;

	mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev);

	if (!mfd)
		return -ENODEV;

	if (mfd->key != MFD_KEY)
		return -EINVAL;

	fbi = mfd->fbi;
	var = &fbi->var;
	vsync_cntrl.dev = mfd->fbi->dev;
	atomic_set(&vsync_cntrl.suspend, 0);

	/* MDP cmd block enable */
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);

	bpp = fbi->var.bits_per_pixel / 8;
	buf = (uint8 *) fbi->fix.smem_start;

	buf += calc_fb_offset(mfd, fbi, bpp);

	dma2_cfg_reg = DMA_PACK_ALIGN_LSB | DMA_OUT_SEL_LCDC;

	if (mfd->fb_imgType == MDP_BGR_565)
		dma2_cfg_reg |= DMA_PACK_PATTERN_BGR;
	else if (mfd->fb_imgType == MDP_RGBA_8888)
		dma2_cfg_reg |= DMA_PACK_PATTERN_BGR;
	else
		dma2_cfg_reg |= DMA_PACK_PATTERN_RGB;

	if (bpp == 2)
		dma2_cfg_reg |= DMA_IBUF_FORMAT_RGB565;
	else if (bpp == 3)
		dma2_cfg_reg |= DMA_IBUF_FORMAT_RGB888;
	else
		dma2_cfg_reg |= DMA_IBUF_FORMAT_xRGB8888_OR_ARGB8888;

	switch (mfd->panel_info.bpp) {
	case 24:
		dma2_cfg_reg |= DMA_DSTC0G_8BITS |
		    DMA_DSTC1B_8BITS | DMA_DSTC2R_8BITS;
		break;

	case 18:
		dma2_cfg_reg |= DMA_DSTC0G_6BITS |
		    DMA_DSTC1B_6BITS | DMA_DSTC2R_6BITS;
		break;

	case 16:
		dma2_cfg_reg |= DMA_DSTC0G_6BITS |
		    DMA_DSTC1B_5BITS | DMA_DSTC2R_5BITS;
		break;

	default:
		printk(KERN_ERR "mdp lcdc can't support format %d bpp!\n",
		       mfd->panel_info.bpp);
		return -ENODEV;
	}

	/* DMA register config */

	dma_base = DMA_P_BASE;

#ifdef CONFIG_FB_MSM_MDP40
	if (mfd->panel.type == HDMI_PANEL)
		dma_base = DMA_E_BASE;
#endif

	/* starting address */
	MDP_OUTP(MDP_BASE + dma_base + 0x8, (uint32) buf);
	/* active window width and height */
	MDP_OUTP(MDP_BASE + dma_base + 0x4, ((fbi->var.yres) << 16) |
						(fbi->var.xres));
	/* buffer ystride */
	MDP_OUTP(MDP_BASE + dma_base + 0xc, fbi->fix.line_length);
	/* x/y coordinate = always 0 for lcdc */
	MDP_OUTP(MDP_BASE + dma_base + 0x10, 0);
	/* dma config */
	MDP_OUTP(MDP_BASE + dma_base, dma2_cfg_reg);

	/*
	 * LCDC timing setting
	 */
	h_back_porch = var->left_margin;
	h_front_porch = var->right_margin;
	v_back_porch = var->upper_margin;
	v_front_porch = var->lower_margin;
	hsync_pulse_width = var->hsync_len;
	vsync_pulse_width = var->vsync_len;
	lcdc_border_clr = mfd->panel_info.lcdc.border_clr;
	lcdc_underflow_clr = mfd->panel_info.lcdc.underflow_clr;
	lcdc_hsync_skew = mfd->panel_info.lcdc.hsync_skew;

	lcdc_width = mfd->panel_info.xres;
	lcdc_height = mfd->panel_info.yres;
	lcdc_bpp = mfd->panel_info.bpp;

	hsync_period =
	    hsync_pulse_width + h_back_porch + lcdc_width + h_front_porch;
	hsync_ctrl = (hsync_period << 16) | hsync_pulse_width;
	hsync_start_x = hsync_pulse_width + h_back_porch;
	hsync_end_x = hsync_period - h_front_porch - 1;
	display_hctl = (hsync_end_x << 16) | hsync_start_x;

	vsync_period =
	    (vsync_pulse_width + v_back_porch + lcdc_height +
	     v_front_porch) * hsync_period;
	display_v_start =
	    (vsync_pulse_width + v_back_porch) * hsync_period + lcdc_hsync_skew;
	display_v_end =
	    vsync_period - (v_front_porch * hsync_period) + lcdc_hsync_skew - 1;

	if (lcdc_width != var->xres) {
		active_h_start = hsync_start_x + first_pixel_start_x;
		active_h_end = active_h_start + var->xres - 1;
		active_hctl =
		    ACTIVE_START_X_EN | (active_h_end << 16) | active_h_start;
	} else {
		active_hctl = 0;
	}

	if (lcdc_height != var->yres) {
		active_v_start =
		    display_v_start + first_pixel_start_y * hsync_period;
		active_v_end = active_v_start + (var->yres) * hsync_period - 1;
		active_v_start |= ACTIVE_START_Y_EN;
	} else {
		active_v_start = 0;
		active_v_end = 0;
	}


#ifdef CONFIG_FB_MSM_MDP40
	if (mfd->panel.type == HDMI_PANEL) {
		block = MDP_DMA_E_BLOCK;
		timer_base = DTV_BASE;
		hsync_polarity = 0;
		vsync_polarity = 0;
	} else {
		hsync_polarity = 1;
		vsync_polarity = 1;
	}

	lcdc_underflow_clr |= 0x80000000;	/* enable recovery */
#else
	hsync_polarity = 0;
	vsync_polarity = 0;
#endif
	data_en_polarity = 0;

	ctrl_polarity =
	    (data_en_polarity << 2) | (vsync_polarity << 1) | (hsync_polarity);

	MDP_OUTP(MDP_BASE + timer_base + 0x4, hsync_ctrl);
	MDP_OUTP(MDP_BASE + timer_base + 0x8, vsync_period);
	MDP_OUTP(MDP_BASE + timer_base + 0xc, vsync_pulse_width * hsync_period);
	if (timer_base == LCDC_BASE) {
		MDP_OUTP(MDP_BASE + timer_base + 0x10, display_hctl);
		MDP_OUTP(MDP_BASE + timer_base + 0x14, display_v_start);
		MDP_OUTP(MDP_BASE + timer_base + 0x18, display_v_end);
		MDP_OUTP(MDP_BASE + timer_base + 0x28, lcdc_border_clr);
		MDP_OUTP(MDP_BASE + timer_base + 0x2c, lcdc_underflow_clr);
		MDP_OUTP(MDP_BASE + timer_base + 0x30, lcdc_hsync_skew);
		MDP_OUTP(MDP_BASE + timer_base + 0x38, ctrl_polarity);
		MDP_OUTP(MDP_BASE + timer_base + 0x1c, active_hctl);
		MDP_OUTP(MDP_BASE + timer_base + 0x20, active_v_start);
		MDP_OUTP(MDP_BASE + timer_base + 0x24, active_v_end);
	} else {
		MDP_OUTP(MDP_BASE + timer_base + 0x18, display_hctl);
		MDP_OUTP(MDP_BASE + timer_base + 0x1c, display_v_start);
		MDP_OUTP(MDP_BASE + timer_base + 0x20, display_v_end);
		MDP_OUTP(MDP_BASE + timer_base + 0x40, lcdc_border_clr);
		MDP_OUTP(MDP_BASE + timer_base + 0x44, lcdc_underflow_clr);
		MDP_OUTP(MDP_BASE + timer_base + 0x48, lcdc_hsync_skew);
		MDP_OUTP(MDP_BASE + timer_base + 0x50, ctrl_polarity);
		MDP_OUTP(MDP_BASE + timer_base + 0x2c, active_hctl);
		MDP_OUTP(MDP_BASE + timer_base + 0x30, active_v_start);
		MDP_OUTP(MDP_BASE + timer_base + 0x38, active_v_end);
	}

	ret = panel_next_on(pdev);
	if (ret == 0) {
		/* enable LCDC block */
		MDP_OUTP(MDP_BASE + timer_base, 1);
		mdp_pipe_ctrl(block, MDP_BLOCK_POWER_ON, FALSE);
	}
	/* MDP cmd block disable */
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);

	if (!vsync_cntrl.sysfs_created) {
		ret = sysfs_create_group(&vsync_cntrl.dev->kobj,
			&vsync_fs_attr_group);
		if (ret) {
			pr_err("%s: sysfs creation failed, ret=%d\n",
				__func__, ret);
			return ret;
		}

		kobject_uevent(&vsync_cntrl.dev->kobj, KOBJ_ADD);
		pr_debug("%s: kobject_uevent(KOBJ_ADD)\n", __func__);
		vsync_cntrl.sysfs_created = 1;
	}

	return ret;
}
static void ev3_uart_handle_rx_data(struct work_struct *work)
{
	struct ev3_uart_port_data *port =
		container_of(work, struct ev3_uart_port_data, rx_data_work);
	struct circ_buf *cb = &port->circ_buf;
	u8 message[EV3_UART_MAX_MESSAGE_SIZE + 2];
	int count = CIRC_CNT(cb->head, cb->tail, EV3_UART_BUFFER_SIZE);
	int i, speed, size_to_end;
	u8 cmd, cmd2, type, mode, msg_type, msg_size, chksum;

#ifdef DEBUG
	printk("received: ");
	for (i = 0; i < count; i++) {
		cmd = cb->buf[(cb->tail + i) % EV3_UART_BUFFER_SIZE];
		if (cmd >= 32 && cmd < 127)
			printk("%c ", cmd);
		else
			printk("0x%02x ", cmd);
	}
	printk("(%d)\n", count);
#endif

	/*
	 * To get in sync with the data stream from the sensor, we look
	 * for a valid TYPE command.
	 */
	while (!port->synced) {
		if (count < 3)
			return;
		cmd = cb->buf[cb->tail];
		cb->tail++;
		if (cb->tail >= EV3_UART_BUFFER_SIZE)
			cb->tail = 0;
		count--;
		if (cmd != (EV3_UART_MSG_TYPE_CMD | EV3_UART_CMD_TYPE))
			continue;
		type = cb->buf[cb->tail];
		if (!type || type > EV3_UART_TYPE_MAX)
			continue;
		chksum = 0xFF ^ cmd ^ type;
		if ((u8)cb->buf[(cb->tail + 1) % EV3_UART_BUFFER_SIZE] != chksum)
			continue;
		port->sensor.num_modes = 1;
		port->sensor.num_view_modes = 1;
		for (i = 0; i <= EV3_UART_MODE_MAX; i++)
			port->mode_info[i] = ev3_uart_default_mode_info;
		port->type_id = type;
		/* look up well-known driver names */
		port->device_name[0] = 0;
		for (i = 0; i < NUM_LEGO_EV3_SENSOR_TYPES; i++) {
			if (type == ev3_uart_sensor_defs[i].type_id) {
				snprintf(port->device_name, LEGO_SENSOR_NAME_SIZE,
					 "%s", ev3_uart_sensor_defs[i].name);
				break;
			}
		}
		/* or use generic name if well-known name is not found */
		if (!port->device_name[0])
			snprintf(port->device_name, LEGO_SENSOR_NAME_SIZE,
				 EV3_UART_SENSOR_NAME("%u"), type);
		port->info_flags = EV3_UART_INFO_FLAG_CMD_TYPE;
		port->synced = 1;
		port->info_done = 0;
		port->data_rec = 0;
		port->num_data_err = 0;
		cb->tail = (cb->tail + 2) % EV3_UART_BUFFER_SIZE;
		count -= 2;
	}
	if (!port->synced)
		return;

	while (count > 0)
	{
		/*
		 * Sometimes we get 0xFF after switching baud rates, so just
		 * ignore it.
		 */
		if ((u8)cb->buf[cb->tail] == 0xFF) {

			cb->tail++;
			if (cb->tail >= EV3_UART_BUFFER_SIZE)
				cb->tail = 0;
			count--;
			continue;
		}
		msg_size = ev3_uart_msg_size((u8)cb->buf[cb->tail]);
		if (msg_size > count)
			break;
		size_to_end = CIRC_CNT_TO_END(cb->head, cb->tail, EV3_UART_BUFFER_SIZE);
		if (msg_size > size_to_end) {
			memcpy(message, cb->buf + cb->tail, size_to_end);
			memcpy(message + size_to_end, cb->buf, msg_size - size_to_end);
			cb->tail = msg_size - size_to_end;
		} else {
			memcpy(message, cb->buf + cb->tail, msg_size);
			cb->tail += msg_size;
			if (cb->tail >= EV3_UART_BUFFER_SIZE)
				cb->tail = 0;
		}
		count -= msg_size;
#ifdef DEBUG
		printk("processing: ");
		for (i = 0; i < msg_size; i++)
			printk("0x%02x ", message[i]);
		printk(" (%d)\n", msg_size);
#endif
		if (msg_size > EV3_UART_MAX_MESSAGE_SIZE) {
			port->last_err = "Bad message size.";
			goto err_invalid_state;
		}
		msg_type = message[0] & EV3_UART_MSG_TYPE_MASK;
		cmd = message[0] & EV3_UART_MSG_CMD_MASK;
		mode = cmd;
		cmd2 = message[1];
		if (msg_size > 1) {
			chksum = 0xFF;
			for (i = 0; i < msg_size - 1; i++)
				chksum ^= message[i];
			debug_pr("chksum:%d, actual:%d\n",
			         chksum, message[msg_size - 1]);
			/*
			 * The LEGO EV3 color sensor sends bad checksums
			 * for RGB-RAW data (mode 4). The check here could be
			 * improved if someone can find a pattern.
			 */
			if (chksum != message[msg_size - 1]
			    && port->type_id != EV3_UART_TYPE_ID_COLOR
			    && message[0] != 0xDC)
			{
				port->last_err = "Bad checksum.";
				if (port->info_done) {
					port->num_data_err++;
					goto err_bad_data_msg_checksum;
				} else
					goto err_invalid_state;
			}
		}
		switch (msg_type) {
		case EV3_UART_MSG_TYPE_SYS:
			debug_pr("SYS:%d\n", message[0] & EV3_UART_MSG_CMD_MASK);
			switch(cmd) {
			case EV3_UART_SYS_SYNC:
				/* IR sensor (type 33) sends checksum after SYNC */
				if (msg_size > 1 && (cmd ^ cmd2) == 0xFF)
					msg_size++;
				break;
			case EV3_UART_SYS_ACK:
				if (!port->sensor.num_modes) {
					port->last_err = "Received ACK before all mode INFO.";
					goto err_invalid_state;
				}
				if ((port->info_flags & EV3_UART_INFO_FLAG_REQUIRED)
				    != EV3_UART_INFO_FLAG_REQUIRED)
				{
					port->last_err = "Did not receive all required INFO.";
					goto err_invalid_state;
				}
				schedule_delayed_work(&port->send_ack_work,
						      msecs_to_jiffies(EV3_UART_SEND_ACK_DELAY));
				port->info_done = 1;
				return;
			}
			break;
		case EV3_UART_MSG_TYPE_CMD:
			debug_pr("CMD:%d\n", cmd);
			switch (cmd) {
			case EV3_UART_CMD_MODES:
				if (test_and_set_bit(EV3_UART_INFO_BIT_CMD_MODES,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate modes INFO.";
					goto err_invalid_state;
				}
				if (!cmd2 || cmd2 > EV3_UART_MODE_MAX) {
					port->last_err = "Number of modes is out of range.";
					goto err_invalid_state;
				}
				port->sensor.num_modes = cmd2 + 1;
				if (msg_size > 3)
					port->sensor.num_view_modes = message[2] + 1;
				else
					port->sensor.num_view_modes = port->sensor.num_modes;
				debug_pr("num_modes:%d, num_view_modes:%d\n",
					 port->sensor.num_modes, port->sensor.num_view_modes);
				break;
			case EV3_UART_CMD_SPEED:
				if (test_and_set_bit(EV3_UART_INFO_BIT_CMD_SPEED,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate speed INFO.";
					goto err_invalid_state;
				}
				speed = *(int*)(message + 1);
				if (speed < EV3_UART_SPEED_MIN
				    || speed > EV3_UART_SPEED_MAX)
				{
					port->last_err = "Speed is out of range.";
					goto err_invalid_state;
				}
				port->new_baud_rate = speed;
				debug_pr("speed:%d\n", speed);
				break;
			default:
				port->last_err = "Unknown command.";
				goto err_invalid_state;
			}
			break;
		case EV3_UART_MSG_TYPE_INFO:
			debug_pr("INFO:%d, mode:%d\n", cmd2, mode);
			switch (cmd2) {
			case EV3_UART_INFO_NAME:
				port->info_flags &= ~EV3_UART_INFO_FLAG_ALL_INFO;
				if (message[2] < 'A' || message[2] > 'z') {
					port->last_err = "Invalid name INFO.";
					goto err_invalid_state;
				}
				/*
				 * Name may not have null terminator and we
				 * are done with the checksum at this point
				 * so we are writing 0 over the checksum to
				 * ensure a null terminator for the string
				 * functions.
				 */
				message[msg_size - 1] = 0;
				if (strlen(message + 2) > EV3_UART_MODE_NAME_SIZE) {
					port->last_err = "Name is too long.";
					goto err_invalid_state;
				}
				snprintf(port->mode_info[mode].name,
				         EV3_UART_MODE_NAME_SIZE + 1, "%s",
				         message + 2);
				if (port->sensor.mode != mode) {
					port->sensor.mode = mode;
					kobject_uevent(&port->sensor.dev.kobj,
						       KOBJ_CHANGE);
				}
				port->info_flags |= EV3_UART_INFO_FLAG_INFO_NAME;
				debug_pr("mode %d name:%s\n",
				       mode, port->sensor.address);
				break;
			case EV3_UART_INFO_RAW:
				if (port->sensor.mode != mode) {
					port->last_err = "Received INFO for incorrect mode.";
					goto err_invalid_state;
				}
				if (test_and_set_bit(EV3_UART_INFO_BIT_INFO_RAW,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate raw scaling INFO.";
					goto err_invalid_state;
				}
				port->raw_min = *(u32 *)(message + 2);
				port->raw_max = *(u32 *)(message + 6);
				debug_pr("mode %d raw_min:%08x, raw_max:%08x\n",
				       mode, port->mode_info[mode].raw_min,
				       port->mode_info[mode].raw_max);
				break;
			case EV3_UART_INFO_PCT:
				if (port->sensor.mode != mode) {
					port->last_err = "Received INFO for incorrect mode.";
					goto err_invalid_state;
				}
				if (test_and_set_bit(EV3_UART_INFO_BIT_INFO_PCT,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate percent scaling INFO.";
					goto err_invalid_state;
				}
				port->pct_min = *(u32 *)(message + 2);
				port->pct_max = *(u32 *)(message + 6);
				debug_pr("mode %d pct_min:%08x, pct_max:%08x\n",
				       mode, port->mode_info[mode].pct_min,
				       port->mode_info[mode].pct_max);
				break;
			case EV3_UART_INFO_SI:
				if (port->sensor.mode != mode) {
					port->last_err = "Received INFO for incorrect mode.";
					goto err_invalid_state;
				}
				if (test_and_set_bit(EV3_UART_INFO_BIT_INFO_SI,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate SI scaling INFO.";
					goto err_invalid_state;
				}
				port->si_min = *(u32 *)(message + 2);
				port->si_max = *(u32 *)(message + 6);
				debug_pr("mode %d si_min:%08x, si_max:%08x\n",
				       mode, port->mode_info[mode].si_min,
				       port->mode_info[mode].si_max);
				break;
			case EV3_UART_INFO_UNITS:
				if (port->sensor.mode != mode) {
					port->last_err = "Received INFO for incorrect mode.";
					goto err_invalid_state;
				}
				if (test_and_set_bit(EV3_UART_INFO_BIT_INFO_UNITS,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate SI units INFO.";
					goto err_invalid_state;
				}
				/*
				 * Units may not have null terminator and we
				 * are done with the checksum at this point
				 * so we are writing 0 over the checksum to
				 * ensure a null terminator for the string
				 * functions.
				 */
				message[msg_size - 1] = 0;
				snprintf(port->mode_info[mode].units,
					 EV3_UART_UNITS_SIZE + 1, "%s",
					 message + 2);
				debug_pr("mode %d units:%s\n",
				       mode, port->mode_info[mode].units);
				break;
			case EV3_UART_INFO_FORMAT:
				if (port->sensor.mode != mode) {
					port->last_err = "Received INFO for incorrect mode.";
					goto err_invalid_state;
				}
				if (test_and_set_bit(EV3_UART_INFO_BIT_INFO_FORMAT,
						     &port->info_flags))
				{
					port->last_err = "Received duplicate format INFO.";
					goto err_invalid_state;
				}
				port->mode_info[mode].data_sets = message[2];
				if (!port->mode_info[mode].data_sets) {
					port->last_err = "Invalid number of data sets.";
					goto err_invalid_state;
				}
				if (msg_size < 7) {
					port->last_err = "Invalid format message size.";
					goto err_invalid_state;
				}
				if ((port->info_flags & EV3_UART_INFO_FLAG_REQUIRED)
						!= EV3_UART_INFO_FLAG_REQUIRED) {
					port->last_err = "Did not receive all required INFO.";
					goto err_invalid_state;
				}
				switch (message[3]) {
				case EV3_UART_DATA_8:
					port->mode_info[mode].data_type = LEGO_SENSOR_DATA_S8;
					break;
				case EV3_UART_DATA_16:
					port->mode_info[mode].data_type = LEGO_SENSOR_DATA_S16;
					break;
				case EV3_UART_DATA_32:
					port->mode_info[mode].data_type = LEGO_SENSOR_DATA_S32;
					break;
				case EV3_UART_DATA_FLOAT:
					port->mode_info[mode].data_type = LEGO_SENSOR_DATA_FLOAT;
					break;
				default:
					port->last_err = "Invalid data type.";
					goto err_invalid_state;
				}
				port->mode_info[mode].figures = message[4];
				port->mode_info[mode].decimals = message[5];
				if (port->info_flags & EV3_UART_INFO_FLAG_INFO_RAW) {
					port->mode_info[mode].raw_min =
						lego_sensor_ftoi(port->raw_min, 0);
					port->mode_info[mode].raw_max =
						lego_sensor_ftoi(port->raw_max, 0);
				}
				if (port->info_flags & EV3_UART_INFO_FLAG_INFO_PCT) {
					port->mode_info[mode].pct_min =
						lego_sensor_ftoi(port->pct_min, 0);
					port->mode_info[mode].pct_max =
						lego_sensor_ftoi(port->pct_max, 0);
				}
				if (port->info_flags & EV3_UART_INFO_FLAG_INFO_SI) {
					port->mode_info[mode].si_min =
						lego_sensor_ftoi(port->si_min,
							port->mode_info[mode].decimals);
					port->mode_info[mode].si_max =
						lego_sensor_ftoi(port->si_max,
							port->mode_info[mode].decimals);
				}
				if (port->sensor.mode)
					port->sensor.mode--;
				debug_pr("mode %d - data_sets:%d, data_type:%d, figures:%d, decimals:%d\n",
					 mode, port->mode_info[mode].data_sets,
					 port->mode_info[mode].data_type,
					 port->mode_info[mode].figures,
					 port->mode_info[mode].decimals);
				debug_pr("raw_min: %d, raw_max: %d\n",
					 port->mode_info[mode].raw_min,
					 port->mode_info[mode].raw_max);
				debug_pr("pct_min: %d, pct_max: %d\n",
					 port->mode_info[mode].pct_min,
					 port->mode_info[mode].pct_max);
				debug_pr("si_min: %d, si_max: %d\n",
					 port->mode_info[mode].si_min,
					 port->mode_info[mode].si_max);
				break;
			}
			break;
		case EV3_UART_MSG_TYPE_DATA:
			debug_pr("DATA:%d\n", message[0] & EV3_UART_MSG_CMD_MASK);
			if (!port->info_done) {
				port->last_err = "Received DATA before INFO was complete.";
				goto err_invalid_state;
			}
			if (mode > EV3_UART_MODE_MAX) {
				port->last_err = "Invalid mode received.";
				goto err_invalid_state;
			}
			if (mode != port->sensor.mode) {
				if (mode == port->new_mode) {
					port->sensor.mode = mode;
					kobject_uevent(&port->sensor.dev.kobj,
						       KOBJ_CHANGE);
				} else {
					port->last_err = "Unexpected mode.";
					goto err_invalid_state;
				}
			}
			if (!completion_done(&port->set_mode_completion)
			    && mode == port->new_mode)
				complete(&port->set_mode_completion);
			memcpy(port->mode_info[mode].raw_data, message + 1, msg_size - 2);
			port->data_rec = 1;
			if (port->num_data_err)
				port->num_data_err--;
			break;
		}
err_bad_data_msg_checksum:
		count = CIRC_CNT(cb->head, cb->tail, EV3_UART_BUFFER_SIZE);
	}
	return;

err_invalid_state:
	port->synced = 0;
	port->new_baud_rate = EV3_UART_SPEED_MIN;
	schedule_work(&port->change_bitrate_work);
}
Exemple #10
0
/**
 * edac_pci_main_kobj_setup()
 *
 *	setup the sysfs for EDAC PCI attributes
 *	assumes edac_subsys has already been initialized
 */
static int edac_pci_main_kobj_setup(void)
{
	int err;
	struct bus_type *edac_subsys;

	debugf0("%s()\n", __func__);

	/* check and count if we have already created the main kobject */
	if (atomic_inc_return(&edac_pci_sysfs_refcount) != 1)
		return 0;

	/* First time, so create the main kobject and its
	 * controls and attributes
	 */
	edac_subsys = edac_get_sysfs_subsys();
	if (edac_subsys == NULL) {
		debugf1("%s() no edac_subsys\n", __func__);
		err = -ENODEV;
		goto decrement_count_fail;
	}

	/* Bump the reference count on this module to ensure the
	 * modules isn't unloaded until we deconstruct the top
	 * level main kobj for EDAC PCI
	 */
	if (!try_module_get(THIS_MODULE)) {
		debugf1("%s() try_module_get() failed\n", __func__);
		err = -ENODEV;
		goto mod_get_fail;
	}

	edac_pci_top_main_kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
	if (!edac_pci_top_main_kobj) {
		debugf1("Failed to allocate\n");
		err = -ENOMEM;
		goto kzalloc_fail;
	}

	/* Instanstiate the pci object */
	err = kobject_init_and_add(edac_pci_top_main_kobj,
				   &ktype_edac_pci_main_kobj,
				   &edac_subsys->dev_root->kobj, "pci");
	if (err) {
		debugf1("Failed to register '.../edac/pci'\n");
		goto kobject_init_and_add_fail;
	}

	/* At this point, to 'release' the top level kobject
	 * for EDAC PCI, then edac_pci_main_kobj_teardown()
	 * must be used, for resources to be cleaned up properly
	 */
	kobject_uevent(edac_pci_top_main_kobj, KOBJ_ADD);
	debugf1("Registered '.../edac/pci' kobject\n");

	return 0;

	/* Error unwind statck */
kobject_init_and_add_fail:
	kfree(edac_pci_top_main_kobj);

kzalloc_fail:
	module_put(THIS_MODULE);

mod_get_fail:
	edac_put_sysfs_subsys();

decrement_count_fail:
	/* if are on this error exit, nothing to tear down */
	atomic_dec(&edac_pci_sysfs_refcount);

	return err;
}
static int __devinit tmp102_temp_sensor_probe(
		struct i2c_client *client, const struct i2c_device_id *id)
{
	struct tmp102_temp_sensor *tmp102;
	int ret = 0;
#ifdef CONFIG_THERMAL_DEBUG
	printk(KERN_DEBUG "%s\n", __func__);
#endif
	if (!i2c_check_functionality(client->adapter,
				     I2C_FUNC_SMBUS_WORD_DATA)) {
		dev_err(&client->dev, "adapter doesn't support SMBus word "
			"transactions\n");

		return -ENODEV;
	}

	tmp102 = kzalloc(sizeof(struct tmp102_temp_sensor), GFP_KERNEL);
	if (!tmp102)
		return -ENOMEM;

	mutex_init(&tmp102->sensor_mutex);

	tmp102->iclient = client;
	tmp102->dev = &client->dev;

	kobject_uevent(&client->dev.kobj, KOBJ_ADD);
	i2c_set_clientdata(client, tmp102);

	ret = tmp102_read_reg(client, TMP102_CONF_REG);
	if (ret < 0) {
		dev_err(&client->dev, "error reading config register\n");
		goto free_err;
	}
	tmp102->config_orig = ret;
	ret = tmp102_write_reg(client, TMP102_CONF_REG, TMP102_CONFIG);
	if (ret < 0) {
		dev_err(&client->dev, "error writing config register\n");
		goto restore_config_err;
	}
	ret = tmp102_read_reg(client, TMP102_CONF_REG);
	if (ret < 0) {
		dev_err(&client->dev, "error reading config register\n");
		goto restore_config_err;
	}
	ret &= ~TMP102_CONFIG_RD_ONLY;
	if (ret != TMP102_CONFIG) {
		dev_err(&client->dev, "config settings did not stick\n");
		ret = -ENODEV;
		goto restore_config_err;
	}
	tmp102->last_update = jiffies - HZ;
	mutex_init(&tmp102->sensor_mutex);

	ret = sysfs_create_group(&client->dev.kobj,
		&tmp102_temp_sensor_attr_group);
	if (ret)
		goto sysfs_create_err;

	tmp102->therm_fw = kzalloc(sizeof(struct thermal_dev), GFP_KERNEL);
	if (tmp102->therm_fw) {
		tmp102->therm_fw->name = TMP102_SENSOR_NAME;
		tmp102->therm_fw->domain_name = "pcb";
		tmp102->therm_fw->dev = tmp102->dev;
		tmp102->therm_fw->dev_ops = &tmp102_temp_sensor_ops;
		thermal_sensor_dev_register(tmp102->therm_fw);
	} else {
		ret = -ENOMEM;
		goto therm_fw_alloc_err;
	}

	dev_info(&client->dev, "initialized\n");

	return 0;

sysfs_create_err:
	thermal_sensor_dev_unregister(tmp102->therm_fw);
	kfree(tmp102->therm_fw);
restore_config_err:
	tmp102_write_reg(client, TMP102_CONF_REG, tmp102->config_orig);
therm_fw_alloc_err:
free_err:
	mutex_destroy(&tmp102->sensor_mutex);
	kfree(tmp102);

	return ret;
}
Exemple #12
0
int mdp4_lcdc_on(struct platform_device *pdev)
{
	int lcdc_width;
	int lcdc_height;
	int lcdc_bpp;
	int lcdc_border_clr;
	int lcdc_underflow_clr;
	int lcdc_hsync_skew;

	int hsync_period;
	int hsync_ctrl;
	int vsync_period;
	int display_hctl;
	int display_v_start;
	int display_v_end;
	int active_hctl;
	int active_h_start;
	int active_h_end;
	int active_v_start;
	int active_v_end;
	int ctrl_polarity;
	int h_back_porch;
	int h_front_porch;
	int v_back_porch;
	int v_front_porch;
	int hsync_pulse_width;
	int vsync_pulse_width;
	int hsync_polarity;
	int vsync_polarity;
	int data_en_polarity;
	int hsync_start_x;
	int hsync_end_x;
	uint8 *buf;
	unsigned int buf_offset;
	int bpp, ptype;
	struct fb_info *fbi;
	struct fb_var_screeninfo *var;
	struct msm_fb_data_type *mfd;
	struct mdp4_overlay_pipe *pipe;
	int ret = 0;
	int cndx = 0;
	struct vsycn_ctrl *vctrl;

	vctrl = &vsync_ctrl_db[cndx];
	mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev);

	if (!mfd)
		return -ENODEV;

	if (mfd->key != MFD_KEY)
		return -EINVAL;

	vctrl->mfd = mfd;
	vctrl->dev = mfd->fbi->dev;
	vctrl->vsync_irq_enabled = 0;

	/* mdp clock on */
	mdp_clk_ctrl(1);

	fbi = mfd->fbi;
	var = &fbi->var;

	bpp = fbi->var.bits_per_pixel / 8;
	buf = (uint8 *) fbi->fix.smem_start;
	buf_offset = calc_fb_offset(mfd, fbi, bpp);

	if (vctrl->base_pipe == NULL) {
		ptype = mdp4_overlay_format2type(mfd->fb_imgType);
		if (ptype < 0)
			printk(KERN_INFO "%s: format2type failed\n", __func__);
		pipe = mdp4_overlay_pipe_alloc(ptype, MDP4_MIXER0);
		if (pipe == NULL)
			printk(KERN_INFO "%s: pipe_alloc failed\n", __func__);
		pipe->pipe_used++;
		pipe->mixer_stage  = MDP4_MIXER_STAGE_BASE;
		pipe->mixer_num  = MDP4_MIXER0;
		pipe->src_format = mfd->fb_imgType;
		mdp4_overlay_panel_mode(pipe->mixer_num, MDP4_PANEL_LCDC);
		ret = mdp4_overlay_format2pipe(pipe);
		if (ret < 0)
			printk(KERN_INFO "%s: format2pipe failed\n", __func__);

		mdp4_init_writeback_buf(mfd, MDP4_MIXER0);
		pipe->ov_blt_addr = 0;
		pipe->dma_blt_addr = 0;

		vctrl->base_pipe = pipe; /* keep it */
	} else {
		pipe = vctrl->base_pipe;
	}


	pipe->src_height = fbi->var.yres;
	pipe->src_width = fbi->var.xres;
	pipe->src_h = fbi->var.yres;
	pipe->src_w = fbi->var.xres;
	pipe->src_y = 0;
	pipe->src_x = 0;
	pipe->dst_h = fbi->var.yres;
	pipe->dst_w = fbi->var.xres;

	if (mfd->display_iova)
		pipe->srcp0_addr = mfd->display_iova + buf_offset;
	else
		pipe->srcp0_addr = (uint32)(buf + buf_offset);

	pipe->srcp0_ystride = fbi->fix.line_length;
	pipe->bpp = bpp;

	mdp4_overlay_solidfill_init(pipe);

	mdp4_overlay_mdp_pipe_req(pipe, mfd);

	atomic_set(&vctrl->suspend, 0);

	mdp4_overlay_dmap_xy(pipe);
	mdp4_overlay_dmap_cfg(mfd, 1);
	mdp4_overlay_rgb_setup(pipe);
	mdp4_overlayproc_cfg(pipe);

	mdp4_overlay_reg_flush(pipe, 1);
	mdp4_mixer_stage_up(pipe, 0);
	mdp4_mixer_stage_commit(pipe->mixer_num);


	/*
	 * LCDC timing setting
	 */
	h_back_porch = var->left_margin;
	h_front_porch = var->right_margin;
	v_back_porch = var->upper_margin;
	v_front_porch = var->lower_margin;
	hsync_pulse_width = var->hsync_len;
	vsync_pulse_width = var->vsync_len;
	lcdc_border_clr = mfd->panel_info.lcdc.border_clr;
	lcdc_underflow_clr = mfd->panel_info.lcdc.underflow_clr;
	lcdc_hsync_skew = mfd->panel_info.lcdc.hsync_skew;

	lcdc_width = var->xres + mfd->panel_info.lcdc.xres_pad;
	lcdc_height = var->yres + mfd->panel_info.lcdc.yres_pad;
	lcdc_bpp = mfd->panel_info.bpp;

	hsync_period =
	    hsync_pulse_width + h_back_porch + h_front_porch;
	if ((mfd->panel_info.type == LVDS_PANEL) &&
		(mfd->panel_info.lvds.channel_mode == LVDS_DUAL_CHANNEL_MODE))
		hsync_period += lcdc_width / 2;
	else
		hsync_period += lcdc_width;
	hsync_ctrl = (hsync_period << 16) | hsync_pulse_width;
	hsync_start_x = hsync_pulse_width + h_back_porch;
	hsync_end_x = hsync_period - h_front_porch - 1;
	display_hctl = (hsync_end_x << 16) | hsync_start_x;

	vsync_period =
	    (vsync_pulse_width + v_back_porch + lcdc_height +
	     v_front_porch) * hsync_period;
	display_v_start =
	    (vsync_pulse_width + v_back_porch) * hsync_period + lcdc_hsync_skew;
	display_v_end =
	    vsync_period - (v_front_porch * hsync_period) + lcdc_hsync_skew - 1;

	if (lcdc_width != var->xres) {
		active_h_start = hsync_start_x + first_pixel_start_x;
		active_h_end = active_h_start + var->xres - 1;
		active_hctl =
		    ACTIVE_START_X_EN | (active_h_end << 16) | active_h_start;
	} else {
		active_hctl = 0;
	}

	if (lcdc_height != var->yres) {
		active_v_start =
		    display_v_start + first_pixel_start_y * hsync_period;
		active_v_end = active_v_start + (var->yres) * hsync_period - 1;
		active_v_start |= ACTIVE_START_Y_EN;
	} else {
		active_v_start = 0;
		active_v_end = 0;
	}


#ifdef CONFIG_FB_MSM_MDP40
	if (mfd->panel_info.lcdc.is_sync_active_high) {
		hsync_polarity = 0;
		vsync_polarity = 0;
	} else {
		hsync_polarity = 1;
		vsync_polarity = 1;
	}
	lcdc_underflow_clr |= 0x80000000;	/* enable recovery */
#else
	hsync_polarity = 0;
	vsync_polarity = 0;
#endif
#if defined(CONFIG_MACH_ARIESVE) || defined(CONFIG_MACH_APACHE)
	data_en_polarity = 1;
#else
	data_en_polarity = 0;
#endif

	ctrl_polarity =
	    (data_en_polarity << 2) | (vsync_polarity << 1) | (hsync_polarity);

	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x4, hsync_ctrl);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x8, vsync_period);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0xc, vsync_pulse_width * hsync_period);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x10, display_hctl);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x14, display_v_start);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x18, display_v_end);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x28, lcdc_border_clr);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x2c, lcdc_underflow_clr);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x30, lcdc_hsync_skew);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x38, ctrl_polarity);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x1c, active_hctl);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x20, active_v_start);
	MDP_OUTP(MDP_BASE + LCDC_BASE + 0x24, active_v_end);
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);

	mdp_histogram_ctrl_all(TRUE);

#if defined(CONFIG_MACH_ANCORA) || defined(CONFIG_MACH_ANCORA_TMO)
	if (board_lcd_hw_revision == 3)
	{
		ret = panel_next_on(pdev);
		if (ret == 0) {
			/* enable LCDC block */
			MDP_OUTP(MDP_BASE + LCDC_BASE, 1);
			mdp_pipe_ctrl(MDP_OVERLAY0_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
		}
		/* MDP cmd block disable */
		mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);
	} else {
		/*
		 * LCDC Block must be enabled before the time of turn on lcd
		 * because of the signal timing.
		*/
		mdp4_overlay_lcdc_start();
	}
#else
	/*
	 * LCDC Block must be enabled before the time of turn on lcd
	 * because of the signal timing.
	 */
	mdp4_overlay_lcdc_start();
#endif

	if (!vctrl->sysfs_created) {
		ret = sysfs_create_group(&vctrl->dev->kobj,
			&vsync_fs_attr_group);
		if (ret) {
			pr_err("%s: sysfs group creation failed, ret=%d\n",
				__func__, ret);
			return ret;
		}

		kobject_uevent(&vctrl->dev->kobj, KOBJ_ADD);
		pr_debug("%s: kobject_uevent(KOBJ_ADD)\n", __func__);
		vctrl->sysfs_created = 1;
	}

	return ret;
}
Exemple #13
0
static int pm8xxx_tz_get_temp_pm8xxx_adc(struct thermal_zone_device *thermal,
				      unsigned long *temp)
{
	struct pm8xxx_tm_chip *chip = thermal->devdata;
	struct pm8xxx_adc_chan_result result = {
		.physical = 0lu,
	};
	int rc;

	if (!chip || !temp)
		return -EINVAL;

	*temp = chip->temp;

	rc = pm8xxx_adc_read(chip->cdata.adc_channel, &result);
	if (rc < 0) {
		pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
			chip->cdata.tm_name, rc);
		return rc;
	}

	*temp = result.physical;
	chip->temp = result.physical;

	return 0;
}

static int pm8xxx_tz_get_mode(struct thermal_zone_device *thermal,
			      enum thermal_device_mode *mode)
{
	struct pm8xxx_tm_chip *chip = thermal->devdata;

	if (!chip || !mode)
		return -EINVAL;

	*mode = chip->mode;

	return 0;
}

static int pm8xxx_tz_set_mode(struct thermal_zone_device *thermal,
			      enum thermal_device_mode mode)
{
	struct pm8xxx_tm_chip *chip = thermal->devdata;

	if (!chip)
		return -EINVAL;

	if (mode != chip->mode) {
		if (mode == THERMAL_DEVICE_ENABLED)
			pm8xxx_tm_shutdown_override(chip,
						    SOFTWARE_OVERRIDE_ENABLED);
		else
			pm8xxx_tm_shutdown_override(chip,
						    SOFTWARE_OVERRIDE_DISABLED);
	}
	chip->mode = mode;

	return 0;
}

static int pm8xxx_tz_get_trip_type(struct thermal_zone_device *thermal,
				   int trip, enum thermal_trip_type *type)
{
	if (trip < 0 || !type)
		return -EINVAL;

	switch (trip) {
	case TRIP_STAGE3:
		*type = THERMAL_TRIP_CRITICAL;
		break;
	case TRIP_STAGE2:
		*type = THERMAL_TRIP_HOT;
		break;
	case TRIP_STAGE1:
		*type = THERMAL_TRIP_HOT;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int pm8xxx_tz_get_trip_temp(struct thermal_zone_device *thermal,
				   int trip, unsigned long *temp)
{
	struct pm8xxx_tm_chip *chip = thermal->devdata;
	int thresh_temp;

	if (!chip || trip < 0 || !temp)
		return -EINVAL;

	thresh_temp = chip->thresh * TEMP_THRESH_STEP +
			TEMP_THRESH_MIN;

	switch (trip) {
	case TRIP_STAGE3:
		thresh_temp += 2 * TEMP_STAGE_STEP;
		break;
	case TRIP_STAGE2:
		thresh_temp += TEMP_STAGE_STEP;
		break;
	case TRIP_STAGE1:
		break;
	default:
		return -EINVAL;
	}

	*temp = thresh_temp;

	return 0;
}

static int pm8xxx_tz_get_crit_temp(struct thermal_zone_device *thermal,
				   unsigned long *temp)
{
	struct pm8xxx_tm_chip *chip = thermal->devdata;

	if (!chip || !temp)
		return -EINVAL;

	*temp = chip->thresh * TEMP_THRESH_STEP + TEMP_THRESH_MIN +
		2 * TEMP_STAGE_STEP;

	return 0;
}

static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_no_adc = {
	.get_temp = pm8xxx_tz_get_temp_no_adc,
	.get_mode = pm8xxx_tz_get_mode,
	.set_mode = pm8xxx_tz_set_mode,
	.get_trip_type = pm8xxx_tz_get_trip_type,
	.get_trip_temp = pm8xxx_tz_get_trip_temp,
	.get_crit_temp = pm8xxx_tz_get_crit_temp,
};

static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_pm8xxx_adc = {
	.get_temp = pm8xxx_tz_get_temp_pm8xxx_adc,
	.get_mode = pm8xxx_tz_get_mode,
	.set_mode = pm8xxx_tz_set_mode,
	.get_trip_type = pm8xxx_tz_get_trip_type,
	.get_trip_temp = pm8xxx_tz_get_trip_temp,
	.get_crit_temp = pm8xxx_tz_get_crit_temp,
};

static void pm8xxx_tm_work(struct work_struct *work)
{
	struct pm8xxx_tm_chip *chip
		= container_of(work, struct pm8xxx_tm_chip, irq_work);
	int rc;
	u8 reg;

	rc = pm8xxx_tm_read_ctrl(chip, &reg);
	if (rc < 0)
		goto bail;

	if (chip->cdata.adc_type == PM8XXX_TM_ADC_NONE) {
		rc = pm8xxx_tm_update_temp_no_adc(chip);
		if (rc < 0)
			goto bail;
		pr_info("%s: Temp Alarm - stage=%u, threshold=%u, "
			"temp=%lu mC\n", chip->cdata.tm_name, chip->stage,
			chip->thresh, chip->temp);
	} else {
		chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
				>> TEMP_ALARM_CTRL_STATUS_SHIFT;
		chip->thresh = (reg & TEMP_ALARM_CTRL_THRESH_MASK)
				>> TEMP_ALARM_CTRL_THRESH_SHIFT;
		pr_info("%s: Temp Alarm - stage=%u, threshold=%u\n",
			chip->cdata.tm_name, chip->stage, chip->thresh);
	}

	/* Clear status bits. */
	if (reg & (TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD)) {
		reg &= ~(TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD
			 | TEMP_ALARM_CTRL_STATUS_MASK);

		pm8xxx_tm_write_ctrl(chip, reg);
	}

	thermal_zone_device_update(chip->tz_dev);

	/* Notify user space */
	if (chip->mode == THERMAL_DEVICE_ENABLED)
		kobject_uevent(&chip->tz_dev->device.kobj, KOBJ_CHANGE);

bail:
	enable_irq(chip->tempstat_irq);
	enable_irq(chip->overtemp_irq);
}

static irqreturn_t pm8xxx_tm_isr(int irq, void *data)
{
	struct pm8xxx_tm_chip *chip = data;

	disable_irq_nosync(chip->tempstat_irq);
	disable_irq_nosync(chip->overtemp_irq);
	schedule_work(&chip->irq_work);

	return IRQ_HANDLED;
}

static int pm8xxx_tm_init_reg(struct pm8xxx_tm_chip *chip)
{
	int rc;
	u8 reg;

	rc = pm8xxx_tm_read_ctrl(chip, &reg);
	if (rc < 0)
		return rc;

	chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
			>> TEMP_ALARM_CTRL_STATUS_SHIFT;
	chip->temp = 0;

	/* Use temperature threshold set 0: (105, 125, 145) */
	chip->thresh = 0;
	reg = (chip->thresh << TEMP_ALARM_CTRL_THRESH_SHIFT)
		& TEMP_ALARM_CTRL_THRESH_MASK;
	rc = pm8xxx_tm_write_ctrl(chip, reg);
	if (rc < 0)
		return rc;

	/*
	 * Set the PMIC alarm module PWM to have a frequency of 8 Hz. This
	 * helps cut down on the number of unnecessary interrupts fired when
	 * changing between thermal stages.  Also, Enable the over temperature
	 * PWM whenever the PMIC is enabled.
	 */
	reg =  (1 << TEMP_ALARM_PWM_EN_SHIFT)
		| (3 << TEMP_ALARM_PWM_PER_PRE_SHIFT)
		| (3 << TEMP_ALARM_PWM_PER_DIV_SHIFT);

	rc = pm8xxx_tm_write_pwm(chip, reg);

	return rc;
}
Exemple #14
0
static int escore_vs_isr(struct notifier_block *self, unsigned long action,
		void *dev)
{
	struct escore_priv *escore = (struct escore_priv *)dev;
	struct escore_voice_sense *voice_sense =
		(struct escore_voice_sense *) escore->voice_sense;
	u32 smooth_mute = ES_SET_SMOOTH_MUTE << 16 | ES_SMOOTH_MUTE_ZERO;
	u32 es_set_power_level = ES_SET_POWER_LEVEL << 16 | ES_POWER_LEVEL_6;
	u32 resp;
	int rc = 0;

	dev_dbg(escore->dev, "%s(): Event: 0x%04x\n", __func__, (u32)action);

	if ((action & 0xFF) != ES_VS_INTR_EVENT) {
		dev_err(escore->dev, "%s(): Invalid event callback 0x%04x\n",
				__func__, (u32) action);
		return NOTIFY_DONE;
	}
	dev_info(escore->dev, "%s(): VS event detected 0x%04x\n",
				__func__, (u32) action);

	if (voice_sense->cvs_preset != 0xFFFF && voice_sense->cvs_preset != 0) {
		escore->escore_power_state = ES_SET_POWER_STATE_NORMAL;
		escore->vs_pm_state = ES_PM_NORMAL;
		escore->non_vs_pm_state = ES_PM_NORMAL;
		escore->mode = STANDARD;
	}

	mutex_lock(&voice_sense->vs_event_mutex);
	voice_sense->vs_get_event = action;
	mutex_unlock(&voice_sense->vs_event_mutex);

	/* If CVS preset is set (other than 0xFFFF), earSmart chip is
	 * in CVS mode. To make it switch from internal to external
	 * oscillator, send power level command with highest power
	 * level
	 */
	if (voice_sense->cvs_preset != 0xFFFF &&
			voice_sense->cvs_preset != 0) {

		rc = escore_cmd(escore, smooth_mute, &resp);
		if (rc < 0) {
			pr_err("%s(): Error setting smooth mute\n", __func__);
			goto voiceq_isr_exit;
		}
		usleep_range(2000, 2005);
		rc = escore_cmd(escore, es_set_power_level, &resp);
		if (rc < 0) {
			pr_err("%s(): Error setting power level\n", __func__);
			goto voiceq_isr_exit;
		}
		usleep_range(2000, 2005);

		/* Each time earSmart chip comes in BOSKO mode after
		 * VS detect, CVS mode will be disabled */
		voice_sense->cvs_preset = 0;
	}
	kobject_uevent(&escore->dev->kobj, KOBJ_CHANGE);

	return NOTIFY_OK;

voiceq_isr_exit:
	return NOTIFY_DONE;
}
Exemple #15
0
int qib_create_port_files(struct ib_device *ibdev, u8 port_num,
			  struct kobject *kobj)
{
	struct qib_pportdata *ppd;
	struct qib_devdata *dd = dd_from_ibdev(ibdev);
	int ret;

	if (!port_num || port_num > dd->num_pports) {
		qib_dev_err(dd,
			"Skipping infiniband class with invalid port %u\n",
			port_num);
		ret = -ENODEV;
		goto bail;
	}
	ppd = &dd->pport[port_num - 1];

	ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj,
				   "linkcontrol");
	if (ret) {
		qib_dev_err(dd,
			"Skipping linkcontrol sysfs info, (err %d) port %u\n",
			ret, port_num);
		goto bail;
	}
	kobject_uevent(&ppd->pport_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj,
				   "sl2vl");
	if (ret) {
		qib_dev_err(dd,
			"Skipping sl2vl sysfs info, (err %d) port %u\n",
			ret, port_num);
		goto bail_link;
	}
	kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->diagc_kobj, &qib_diagc_ktype, kobj,
				   "diag_counters");
	if (ret) {
		qib_dev_err(dd,
			"Skipping diag_counters sysfs info, (err %d) port %u\n",
			ret, port_num);
		goto bail_sl;
	}
	kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD);

	if (!qib_cc_table_size || !ppd->congestion_entries_shadow)
		return 0;

	ret = kobject_init_and_add(&ppd->pport_cc_kobj, &qib_port_cc_ktype,
				kobj, "CCMgtA");
	if (ret) {
		qib_dev_err(dd,
		 "Skipping Congestion Control sysfs info, (err %d) port %u\n",
		 ret, port_num);
		goto bail_diagc;
	}

	kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD);

	ret = sysfs_create_bin_file(&ppd->pport_cc_kobj,
				&cc_setting_bin_attr);
	if (ret) {
		qib_dev_err(dd,
		 "Skipping Congestion Control setting sysfs info, (err %d) port %u\n",
		 ret, port_num);
		goto bail_cc;
	}

	ret = sysfs_create_bin_file(&ppd->pport_cc_kobj,
				&cc_table_bin_attr);
	if (ret) {
		qib_dev_err(dd,
		 "Skipping Congestion Control table sysfs info, (err %d) port %u\n",
		 ret, port_num);
		goto bail_cc_entry_bin;
	}

	qib_devinfo(dd->pcidev,
		"IB%u: Congestion Control Agent enabled for port %d\n",
		dd->unit, port_num);

	return 0;

bail_cc_entry_bin:
	sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr);
bail_cc:
	kobject_put(&ppd->pport_cc_kobj);
bail_diagc:
	kobject_put(&ppd->diagc_kobj);
bail_sl:
	kobject_put(&ppd->sl2vl_kobj);
bail_link:
	kobject_put(&ppd->pport_kobj);
bail:
	return ret;
}
Exemple #16
0
static ssize_t disk_uevent_store(struct gendisk * disk,
				 const char *buf, size_t count)
{
	kobject_uevent(&disk->kobj, KOBJ_ADD);
	return count;
}
Exemple #17
0
/**
 * bus_add_driver :总线注册驱动.
 */
int bus_add_driver(struct device_driver *drv)
{
	struct bus_type *bus;
	struct driver_private *priv;
	int error = 0;

	bus = bus_get(drv->bus);
	if (!bus)
		return -EINVAL;

	pr_debug("bus: '%s': add driver %s\n", bus->name, drv->name);

	/*申请驱动私有数据内存,驱动所支持的所有设备都存放到
	 * priv中*/
	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		error = -ENOMEM;
		goto out_put_bus;
	}
	klist_init(&priv->klist_devices, NULL, NULL);
	priv->driver = drv;
	drv->p = priv;
	/*驱动加入到总线的驱动对象集合中*/
	priv->kobj.kset = bus->p->drivers_kset;
	/*在sys文件系统中创建priv->kobj对象,目录名称为drv->name*/
	error = kobject_init_and_add(&priv->kobj, &driver_ktype, NULL,
				     "%s", drv->name);
	if (error)
		goto out_unregister;

	if (drv->bus->p->drivers_autoprobe) {
		error = driver_attach(drv);
		if (error)
			goto out_unregister;
	}
	/*驱动链接到所属的bus的driver链表中*/
	klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
	module_add_driver(drv->owner, drv);

	/*在sys文件系统中创建drv->p->kobj目录下创建驱动属性文件*/
	error = driver_create_file(drv, &driver_attr_uevent);
	if (error) {
		printk(KERN_ERR "%s: uevent attr (%s) failed\n",
			__func__, drv->name);
	}
	/*为drv->p->kobj目录项下创建bus属性文件*/
	error = driver_add_attrs(bus, drv);
	if (error) {
		/* How the hell do we get out of this pickle? Give up */
		printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
			__func__, drv->name);
	}

	if (!drv->suppress_bind_attrs) {
		error = add_bind_files(drv);
		if (error) {
			/* Ditto */
			printk(KERN_ERR "%s: add_bind_files(%s) failed\n",
				__func__, drv->name);
		}
	}

	kobject_uevent(&priv->kobj, KOBJ_ADD);
	return 0;

out_unregister:
	kfree(drv->p);
	drv->p = NULL;
	kobject_put(&priv->kobj);
out_put_bus:
	bus_put(bus);
	return error;
}
int mdp_dsi_video_on(struct platform_device *pdev)
{
	int dsi_width;
	int dsi_height;
	int dsi_bpp;
	int dsi_border_clr;
	int dsi_underflow_clr;
	int dsi_hsync_skew;

	int hsync_period;
	int hsync_ctrl;
	int vsync_period;
	int display_hctl;
	int display_v_start;
	int display_v_end;
	int active_hctl;
	int active_h_start;
	int active_h_end;
	int active_v_start;
	int active_v_end;
	int ctrl_polarity;
	int h_back_porch;
	int h_front_porch;
	int v_back_porch;
	int v_front_porch;
	int hsync_pulse_width;
	int vsync_pulse_width;
	int hsync_polarity;
	int vsync_polarity;
	int data_en_polarity;
	int hsync_start_x;
	int hsync_end_x;
	uint8 *buf;
	uint32 dma2_cfg_reg;

	int bpp;
	struct fb_info *fbi;
	struct fb_var_screeninfo *var;
	struct msm_fb_data_type *mfd;
	int ret;
	uint32_t mask, curr;

	mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev);

	if (!mfd)
		return -ENODEV;

	if (mfd->key != MFD_KEY)
		return -EINVAL;

	fbi = mfd->fbi;
	var = &fbi->var;

	vsync_cntrl.dev = mfd->fbi->dev;
	atomic_set(&vsync_cntrl.suspend, 0);
	bpp = fbi->var.bits_per_pixel / 8;
	buf = (uint8 *) fbi->fix.smem_start;

	buf += calc_fb_offset(mfd, fbi, bpp);

	dma2_cfg_reg = DMA_PACK_ALIGN_LSB | DMA_OUT_SEL_DSI_VIDEO;

	if (mfd->fb_imgType == MDP_BGR_565)
		dma2_cfg_reg |= DMA_PACK_PATTERN_BGR;
	else if (mfd->fb_imgType == MDP_RGBA_8888)
		dma2_cfg_reg |= DMA_PACK_PATTERN_BGR;
	else
		dma2_cfg_reg |= DMA_PACK_PATTERN_RGB;

	if (bpp == 2)
		dma2_cfg_reg |= DMA_IBUF_FORMAT_RGB565;
	else if (bpp == 3)
		dma2_cfg_reg |= DMA_IBUF_FORMAT_RGB888;
	else
		dma2_cfg_reg |= DMA_IBUF_FORMAT_xRGB8888_OR_ARGB8888;

	switch (mfd->panel_info.bpp) {
	case 24:
		dma2_cfg_reg |= DMA_DSTC0G_8BITS |
			DMA_DSTC1B_8BITS | DMA_DSTC2R_8BITS;
		break;
	case 18:
		dma2_cfg_reg |= DMA_DSTC0G_6BITS |
			DMA_DSTC1B_6BITS | DMA_DSTC2R_6BITS;
		break;
	case 16:
		dma2_cfg_reg |= DMA_DSTC0G_6BITS |
			DMA_DSTC1B_5BITS | DMA_DSTC2R_5BITS;
		break;
	default:
		printk(KERN_ERR "mdp lcdc can't support format %d bpp!\n",
			mfd->panel_info.bpp);
		return -ENODEV;
	}
	/* MDP cmd block enable */
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);


	/* starting address */
	MDP_OUTP(MDP_BASE + DMA_P_BASE + 0x8, (uint32) buf);

	/* active window width and height */
	MDP_OUTP(MDP_BASE + DMA_P_BASE + 0x4, ((fbi->var.yres) << 16) |
		(fbi->var.xres));

	/* buffer ystride */
	MDP_OUTP(MDP_BASE + DMA_P_BASE + 0xc, fbi->fix.line_length);

	/* x/y coordinate = always 0 for lcdc */
	MDP_OUTP(MDP_BASE + DMA_P_BASE + 0x10, 0);

	/* dma config */
	curr = inpdw(MDP_BASE + DMA_P_BASE);
	mask = 0x0FFFFFFF;
	dma2_cfg_reg = (dma2_cfg_reg & mask) | (curr & ~mask);
	MDP_OUTP(MDP_BASE + DMA_P_BASE, dma2_cfg_reg);

	/*
	 * DSI timing setting
	 */
	h_back_porch = var->left_margin;
	h_front_porch = var->right_margin;
	v_back_porch = var->upper_margin;
	v_front_porch = var->lower_margin;
	hsync_pulse_width = var->hsync_len;
	vsync_pulse_width = var->vsync_len;
	dsi_border_clr = mfd->panel_info.lcdc.border_clr;
	dsi_underflow_clr = mfd->panel_info.lcdc.underflow_clr;
	dsi_hsync_skew = mfd->panel_info.lcdc.hsync_skew;
	dsi_width = mfd->panel_info.xres;
	dsi_height = mfd->panel_info.yres;
	dsi_bpp = mfd->panel_info.bpp;
	hsync_period = h_back_porch + dsi_width + h_front_porch + 1;
	hsync_ctrl = (hsync_period << 16) | hsync_pulse_width;
	hsync_start_x = h_back_porch;
	hsync_end_x = dsi_width + h_back_porch - 1;
	display_hctl = (hsync_end_x << 16) | hsync_start_x;

	vsync_period =
		(v_back_porch + dsi_height + v_front_porch + 1) * hsync_period;
	display_v_start = v_back_porch * hsync_period + dsi_hsync_skew;
	display_v_end = (dsi_height + v_back_porch) * hsync_period;

	active_h_start = hsync_start_x + first_pixel_start_x;
	active_h_end = active_h_start + var->xres - 1;
	active_hctl = ACTIVE_START_X_EN |
			(active_h_end << 16) | active_h_start;

	active_v_start = display_v_start +
			first_pixel_start_y * hsync_period;
	active_v_end = active_v_start +	(var->yres) * hsync_period - 1;
	active_v_start |= ACTIVE_START_Y_EN;

	dsi_underflow_clr |= 0x80000000;	/* enable recovery */
	hsync_polarity = 0;
	vsync_polarity = 0;
	data_en_polarity = 0;

	ctrl_polarity =	(data_en_polarity << 2) |
		(vsync_polarity << 1) | (hsync_polarity);

	if (!(mfd->cont_splash_done)) {
		mdp_pipe_ctrl(MDP_CMD_BLOCK,
			MDP_BLOCK_POWER_OFF, FALSE);
		MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 0);
/* lichm 20130227 add for RGB lcd build error  */
#if defined(TYQ_LCD_SUPPORT)
#else
		mipi_dsi_controller_cfg(0);
#endif
	}

	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x4, hsync_ctrl);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x8, vsync_period);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0xc, vsync_pulse_width);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x10, display_hctl);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x14, display_v_start);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x18, display_v_end);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x1c, active_hctl);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x20, active_v_start);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x24, active_v_end);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x28, dsi_border_clr);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x2c, dsi_underflow_clr);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x30, dsi_hsync_skew);
	MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x38, ctrl_polarity);

	ret = panel_next_on(pdev);
	if (ret == 0) {
		/* enable DSI block */
		MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 1);
		/*Turning on DMA_P block*/
		mdp_pipe_ctrl(MDP_DMA2_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
	}

	/* MDP cmd block disable */
	mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);

	if (!vsync_cntrl.sysfs_created) {
		ret = sysfs_create_group(&vsync_cntrl.dev->kobj,
			&vsync_fs_attr_group);
		if (ret) {
			pr_err("%s: sysfs creation failed, ret=%d\n",
				__func__, ret);
			return ret;
		}

		kobject_uevent(&vsync_cntrl.dev->kobj, KOBJ_ADD);
		pr_debug("%s: kobject_uevent(KOBJ_ADD)\n", __func__);
		vsync_cntrl.sysfs_created = 1;
	}
	mdp_histogram_ctrl_all(TRUE);

	return ret;
}
int mdp3_ctrl_init(struct msm_fb_data_type *mfd)
{
	struct device *dev = mfd->fbi->dev;
	struct msm_mdp_interface *mdp3_interface = &mfd->mdp;
	struct mdp3_session_data *mdp3_session = NULL;
	u32 intf_type = MDP3_DMA_OUTPUT_SEL_DSI_VIDEO;
	int rc;

	pr_debug("mdp3_ctrl_init\n");
	mdp3_interface->on_fnc = mdp3_ctrl_on;
	mdp3_interface->off_fnc = mdp3_ctrl_off;
	mdp3_interface->do_histogram = NULL;
	mdp3_interface->cursor_update = NULL;
	mdp3_interface->dma_fnc = mdp3_ctrl_pan_display;
	mdp3_interface->ioctl_handler = mdp3_ctrl_ioctl_handler;
	mdp3_interface->kickoff_fnc = mdp3_ctrl_display_commit_kickoff;

	mdp3_session = kmalloc(sizeof(struct mdp3_session_data), GFP_KERNEL);
	if (!mdp3_session) {
		pr_err("fail to allocate mdp3 private data structure");
		return -ENOMEM;
	}
	memset(mdp3_session, 0, sizeof(struct mdp3_session_data));
	mutex_init(&mdp3_session->lock);
	init_completion(&mdp3_session->vsync_comp);
	spin_lock_init(&mdp3_session->vsync_lock);
	mdp3_session->dma = mdp3_get_dma_pipe(MDP3_DMA_CAP_ALL);
	if (!mdp3_session->dma) {
		rc = -ENODEV;
		goto init_done;
	}

	intf_type = mdp3_ctrl_get_intf_type(mfd);
	mdp3_session->intf = mdp3_get_display_intf(intf_type);
	if (!mdp3_session->intf) {
		rc = -ENODEV;
		goto init_done;
	}

	mdp3_session->panel = dev_get_platdata(&mfd->pdev->dev);
	mdp3_session->status = 0;
	mdp3_session->overlay.id = MSMFB_NEW_REQUEST;
	mdp3_bufq_init(&mdp3_session->bufq_in);
	mdp3_bufq_init(&mdp3_session->bufq_out);

	mfd->mdp.private1 = mdp3_session;

	rc = sysfs_create_group(&dev->kobj, &vsync_fs_attr_group);
	if (rc) {
		pr_err("vsync sysfs group creation failed, ret=%d\n", rc);
		goto init_done;
	}

	kobject_uevent(&dev->kobj, KOBJ_ADD);
	pr_debug("vsync kobject_uevent(KOBJ_ADD)\n");

init_done:
	if (IS_ERR_VALUE(rc))
		kfree(mdp3_session);

	return rc;
}
static int __devinit omap_temp_sensor_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct omap_temp_sensor_pdata *pdata = pdev->dev.platform_data;
	struct omap_temp_sensor *temp_sensor;
	struct resource *mem;
	int ret = 0, val;

	if (!pdata) {
		dev_err(&pdev->dev, "%s: platform data missing\n", __func__);
		return -EINVAL;
	}

	temp_sensor = kzalloc(sizeof(struct omap_temp_sensor), GFP_KERNEL);
	if (!temp_sensor)
		return -ENOMEM;

	spin_lock_init(&temp_sensor->lock);
	mutex_init(&temp_sensor->sensor_mutex);

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!mem) {
		dev_err(&pdev->dev, "%s:no mem resource\n", __func__);
		ret = -EINVAL;
		goto plat_res_err;
	}

	temp_sensor->irq = platform_get_irq_byname(pdev, "thermal_alert");
	if (temp_sensor->irq < 0) {
		dev_err(&pdev->dev, "%s:Cannot get thermal alert irq\n",
			__func__);
		ret = -EINVAL;
		goto get_irq_err;
	}

	ret = gpio_request_one(OMAP_TSHUT_GPIO, GPIOF_DIR_IN,
		"thermal_shutdown");
	if (ret) {
		dev_err(&pdev->dev, "%s: Could not get tshut_gpio\n",
			__func__);
		goto tshut_gpio_req_err;
	}

	temp_sensor->tshut_irq = gpio_to_irq(OMAP_TSHUT_GPIO);
	if (temp_sensor->tshut_irq < 0) {
		dev_err(&pdev->dev, "%s:Cannot get thermal shutdown irq\n",
			__func__);
		ret = -EINVAL;
		goto get_tshut_irq_err;
	}

	temp_sensor->phy_base = pdata->offset;
	temp_sensor->pdev = pdev;
	temp_sensor->dev = dev;

	pm_runtime_enable(dev);
	pm_runtime_irq_safe(dev);


	kobject_uevent(&pdev->dev.kobj, KOBJ_ADD);
	platform_set_drvdata(pdev, temp_sensor);


	/*
	 * check if the efuse has a non-zero value if not
	 * it is an untrimmed sample and the temperatures
	 * may not be accurate */
	if (omap_readl(OMAP4_CTRL_MODULE_CORE +
			OMAP4_CTRL_MODULE_CORE_STD_FUSE_OPP_BGAP))
		temp_sensor->is_efuse_valid = 1;

	temp_sensor->clock = clk_get(&temp_sensor->pdev->dev, "fck");
	if (IS_ERR(temp_sensor->clock)) {
		ret = PTR_ERR(temp_sensor->clock);
		pr_err("%s:Unable to get fclk: %d\n", __func__, ret);
		ret = -EINVAL;
		goto clk_get_err;
	}

	ret = omap_temp_sensor_enable(temp_sensor);
	if (ret) {
		dev_err(&pdev->dev, "%s:Cannot enable temp sensor\n", __func__);
		goto sensor_enable_err;
	}

	temp_sensor->therm_fw = kzalloc(sizeof(struct thermal_dev), GFP_KERNEL);
	if (temp_sensor->therm_fw) {
		temp_sensor->therm_fw->name = "omap_ondie_sensor";
		temp_sensor->therm_fw->domain_name = "cpu";
		temp_sensor->therm_fw->dev = temp_sensor->dev;
		temp_sensor->therm_fw->dev_ops = &omap_sensor_ops;
		thermal_sensor_dev_register(temp_sensor->therm_fw);
	} else {
		dev_err(&pdev->dev, "%s:Cannot alloc memory for thermal fw\n",
			__func__);
		ret = -ENOMEM;
		goto therm_fw_alloc_err;
	}

	omap_enable_continuous_mode(temp_sensor, 1);
	omap_configure_temp_sensor_thresholds(temp_sensor);
	/* 1 ms */
	omap_configure_temp_sensor_counter(temp_sensor, 1);

	/* Wait till the first conversion is done wait for at least 1ms */
	mdelay(2);

	/* Read the temperature once due to hw issue*/
	omap_report_temp(temp_sensor->therm_fw);

	/* Set 250 milli-seconds time as default counter */
	omap_configure_temp_sensor_counter(temp_sensor,
					temp_sensor->clk_rate * 250 / 1000);
	ret = sysfs_create_group(&pdev->dev.kobj,
				 &omap_temp_sensor_group);
	if (ret) {
		dev_err(&pdev->dev, "could not create sysfs files\n");
		goto sysfs_create_err;
	}

	ret = request_threaded_irq(temp_sensor->irq, NULL,
			omap_talert_irq_handler,
			IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
			"temp_sensor", (void *)temp_sensor);
	if (ret) {
		dev_err(&pdev->dev, "Request threaded irq failed.\n");
		goto req_irq_err;
	}

	ret = request_threaded_irq(temp_sensor->tshut_irq, NULL,
			omap_tshut_irq_handler,
			IRQF_TRIGGER_RISING | IRQF_ONESHOT,
			"tshut", (void *)temp_sensor);
	if (ret) {
		dev_err(&pdev->dev, "Request threaded irq failed for TSHUT.\n");
		goto tshut_irq_req_err;
	}

	/* unmask the T_COLD and unmask T_HOT at init */
	val = omap_temp_sensor_readl(temp_sensor, BGAP_CTRL_OFFSET);
	val |= OMAP4_MASK_COLD_MASK;
	val |= OMAP4_MASK_HOT_MASK;
	omap_temp_sensor_writel(temp_sensor, val, BGAP_CTRL_OFFSET);

	dev_info(&pdev->dev, "%s : '%s'\n", temp_sensor->therm_fw->name,
			pdata->name);

	temp_sensor_pm = temp_sensor;
	return 0;

tshut_irq_req_err:
	free_irq(temp_sensor->irq, temp_sensor);
req_irq_err:
	kobject_uevent(&temp_sensor->dev->kobj, KOBJ_REMOVE);
	sysfs_remove_group(&temp_sensor->dev->kobj, &omap_temp_sensor_group);
sysfs_create_err:
	thermal_sensor_dev_unregister(temp_sensor->therm_fw);
	kfree(temp_sensor->therm_fw);
	if (temp_sensor->clock)
		clk_put(temp_sensor->clock);
	platform_set_drvdata(pdev, NULL);
therm_fw_alloc_err:
	omap_temp_sensor_disable(temp_sensor);
sensor_enable_err:
	clk_put(temp_sensor->clock);
clk_get_err:
	pm_runtime_disable(&pdev->dev);
get_tshut_irq_err:
	gpio_free(OMAP_TSHUT_GPIO);
tshut_gpio_req_err:
get_irq_err:
plat_res_err:
	mutex_destroy(&temp_sensor->sensor_mutex);
	kfree(temp_sensor);
	return ret;
}
Exemple #21
0
int mdp3_ctrl_init(struct msm_fb_data_type *mfd)
{
	struct device *dev = mfd->fbi->dev;
	struct msm_mdp_interface *mdp3_interface = &mfd->mdp;
	struct mdp3_session_data *mdp3_session = NULL;
	u32 intf_type = MDP3_DMA_OUTPUT_SEL_DSI_VIDEO;
	int rc;
	int splash_mismatch = 0;

	pr_debug("mdp3_ctrl_init\n");
	rc = mdp3_parse_dt_splash(mfd);
	if (rc)
		splash_mismatch = 1;

	mdp3_interface->on_fnc = mdp3_ctrl_on;
	mdp3_interface->off_fnc = mdp3_ctrl_off;
	mdp3_interface->do_histogram = NULL;
	mdp3_interface->cursor_update = NULL;
	mdp3_interface->dma_fnc = mdp3_ctrl_pan_display;
	mdp3_interface->ioctl_handler = mdp3_ctrl_ioctl_handler;
	mdp3_interface->kickoff_fnc = mdp3_ctrl_display_commit_kickoff;
	mdp3_interface->lut_update = mdp3_ctrl_lut_update;

	mdp3_session = kmalloc(sizeof(struct mdp3_session_data), GFP_KERNEL);
	if (!mdp3_session) {
		pr_err("fail to allocate mdp3 private data structure");
		return -ENOMEM;
	}
	memset(mdp3_session, 0, sizeof(struct mdp3_session_data));
	mutex_init(&mdp3_session->lock);
	mutex_init(&mdp3_session->offlock);
	INIT_WORK(&mdp3_session->clk_off_work, mdp3_dispatch_clk_off);
	INIT_WORK(&mdp3_session->dma_done_work, mdp3_dispatch_dma_done);
	atomic_set(&mdp3_session->vsync_countdown, 0);
	mutex_init(&mdp3_session->histo_lock);
	mdp3_session->dma = mdp3_get_dma_pipe(MDP3_DMA_CAP_ALL);
	if (!mdp3_session->dma) {
		rc = -ENODEV;
		goto init_done;
	}

	rc = mdp3_dma_init(mdp3_session->dma);
	if (rc) {
		pr_err("fail to init dma\n");
		goto init_done;
	}

	intf_type = mdp3_ctrl_get_intf_type(mfd);
	mdp3_session->intf = mdp3_get_display_intf(intf_type);
	if (!mdp3_session->intf) {
		rc = -ENODEV;
		goto init_done;
	}
	rc = mdp3_intf_init(mdp3_session->intf);
	if (rc) {
		pr_err("fail to init interface\n");
		goto init_done;
	}

	mdp3_session->dma->output_config.out_sel = intf_type;
	mdp3_session->mfd = mfd;
	mdp3_session->panel = dev_get_platdata(&mfd->pdev->dev);
	mdp3_session->status = mdp3_session->intf->active;
	mdp3_session->overlay.id = MSMFB_NEW_REQUEST;
	mdp3_bufq_init(&mdp3_session->bufq_in);
	mdp3_bufq_init(&mdp3_session->bufq_out);
	mdp3_session->histo_status = 0;
	mdp3_session->lut_sel = 0;
	BLOCKING_INIT_NOTIFIER_HEAD(&mdp3_session->notifier_head);

	init_timer(&mdp3_session->vsync_timer);
	mdp3_session->vsync_timer.function = mdp3_vsync_timer_func;
	mdp3_session->vsync_timer.data = (u32)mdp3_session;
	mdp3_session->vsync_period = 1000 / mfd->panel_info->mipi.frame_rate;
	mfd->mdp.private1 = mdp3_session;

	rc = sysfs_create_group(&dev->kobj, &vsync_fs_attr_group);
	if (rc) {
		pr_err("vsync sysfs group creation failed, ret=%d\n", rc);
		goto init_done;
	}

	mdp3_session->vsync_event_sd = sysfs_get_dirent(dev->kobj.sd, NULL,
							"vsync_event");
	if (!mdp3_session->vsync_event_sd) {
		pr_err("vsync_event sysfs lookup failed\n");
		rc = -ENODEV;
		goto init_done;
	}

	rc = mdp3_create_sysfs_link(dev);
	if (rc)
		pr_warn("problem creating link to mdp sysfs\n");

	kobject_uevent(&dev->kobj, KOBJ_ADD);
	pr_debug("vsync kobject_uevent(KOBJ_ADD)\n");

	if (mdp3_get_cont_spash_en()) {
		mdp3_session->clk_on = 1;
		mdp3_ctrl_notifier_register(mdp3_session,
			&mdp3_session->mfd->mdp_sync_pt_data.notifier);
	}

	if (splash_mismatch) {
		pr_err("splash memory mismatch, stop splash\n");
		mdp3_ctrl_off(mfd);
	}

	mdp3_session->vsync_before_commit = true;
init_done:
	if (IS_ERR_VALUE(rc))
		kfree(mdp3_session);

	return rc;
}
Exemple #22
0
/*
 * Helper function for ibft_register_kobjects.
 */
static int __init ibft_create_kobject(struct ibft_table_header *header,
				       struct ibft_hdr *hdr,
				       struct list_head *list)
{
	struct ibft_kobject *ibft_kobj = NULL;
	struct ibft_nic *nic = (struct ibft_nic *)hdr;
	struct pci_dev *pci_dev;
	int rc = 0;

	ibft_kobj = kzalloc(sizeof(*ibft_kobj), GFP_KERNEL);
	if (!ibft_kobj)
		return -ENOMEM;

	ibft_kobj->header = header;
	ibft_kobj->hdr = hdr;

	switch (hdr->id) {
	case id_initiator:
		rc = ibft_verify_hdr("initiator", hdr, id_initiator,
				     sizeof(*ibft_kobj->initiator));
		break;
	case id_nic:
		rc = ibft_verify_hdr("ethernet", hdr, id_nic,
				     sizeof(*ibft_kobj->nic));
		break;
	case id_target:
		rc = ibft_verify_hdr("target", hdr, id_target,
				     sizeof(*ibft_kobj->tgt));
		break;
	case id_reserved:
	case id_control:
	case id_extensions:
		/* Fields which we don't support. Ignore them */
		rc = 1;
		break;
	default:
		printk(KERN_ERR "iBFT has unknown structure type (%d). " \
				"Report this bug to %.6s!\n", hdr->id,
				header->oem_id);
		rc = 1;
		break;
	}

	if (rc) {
		/* Skip adding this kobject, but exit with non-fatal error. */
		kfree(ibft_kobj);
		goto out_invalid_struct;
	}

	ibft_kobj->kobj.kset = ibft_kset;

	rc = kobject_init_and_add(&ibft_kobj->kobj, &ibft_ktype,
				  NULL, ibft_id_names[hdr->id], hdr->index);

	if (rc) {
		kfree(ibft_kobj);
		goto out;
	}

	kobject_uevent(&ibft_kobj->kobj, KOBJ_ADD);

	if (hdr->id == id_nic) {
		/*
		* We don't search for the device in other domains than
		* zero. This is because on x86 platforms the BIOS
		* executes only devices which are in domain 0. Furthermore, the
		* iBFT spec doesn't have a domain id field :-(
		*/
		pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
					       (nic->pci_bdf & 0xff));
		if (pci_dev) {
			rc = sysfs_create_link(&ibft_kobj->kobj,
					       &pci_dev->dev.kobj, "device");
			pci_dev_put(pci_dev);
		}
	}
Exemple #23
0
int blk_register_queue(struct gendisk *disk)
{
	int ret;
	struct device *dev = disk_to_dev(disk);
	struct request_queue *q = disk->queue;

	if (WARN_ON(!q))
		return -ENXIO;

	WARN_ONCE(test_bit(QUEUE_FLAG_REGISTERED, &q->queue_flags),
		  "%s is registering an already registered queue\n",
		  kobject_name(&dev->kobj));
	queue_flag_set_unlocked(QUEUE_FLAG_REGISTERED, q);

	/*
	 * SCSI probing may synchronously create and destroy a lot of
	 * request_queues for non-existent devices.  Shutting down a fully
	 * functional queue takes measureable wallclock time as RCU grace
	 * periods are involved.  To avoid excessive latency in these
	 * cases, a request_queue starts out in a degraded mode which is
	 * faster to shut down and is made fully functional here as
	 * request_queues for non-existent devices never get registered.
	 */
	if (!blk_queue_init_done(q)) {
		queue_flag_set_unlocked(QUEUE_FLAG_INIT_DONE, q);
		percpu_ref_switch_to_percpu(&q->q_usage_counter);
		blk_queue_bypass_end(q);
	}

	ret = blk_trace_init_sysfs(dev);
	if (ret)
		return ret;

	/* Prevent changes through sysfs until registration is completed. */
	mutex_lock(&q->sysfs_lock);

	ret = kobject_add(&q->kobj, kobject_get(&dev->kobj), "%s", "queue");
	if (ret < 0) {
		blk_trace_remove_sysfs(dev);
		goto unlock;
	}

	if (q->mq_ops) {
		__blk_mq_register_dev(dev, q);
		blk_mq_debugfs_register(q);
	}

	kobject_uevent(&q->kobj, KOBJ_ADD);

	wbt_enable_default(q);

	blk_throtl_register_queue(q);

	if (q->request_fn || (q->mq_ops && q->elevator)) {
		ret = elv_register_queue(q);
		if (ret) {
			kobject_uevent(&q->kobj, KOBJ_REMOVE);
			kobject_del(&q->kobj);
			blk_trace_remove_sysfs(dev);
			kobject_put(&dev->kobj);
			goto unlock;
		}
	}
	ret = 0;
unlock:
	mutex_unlock(&q->sysfs_lock);
	return ret;
}
Exemple #24
0
static void dm_CheckPbcGPIO(_adapter *padapter)
{
	u8	tmp1byte;
	u8	bPbcPressed = _FALSE;

	if(!padapter->registrypriv.hw_wps_pbc)
		return;

#ifdef CONFIG_USB_HCI
	tmp1byte = rtw_read8(padapter, GPIO_IO_SEL);
	tmp1byte |= (HAL_8192C_HW_GPIO_WPS_BIT);
	rtw_write8(padapter, GPIO_IO_SEL, tmp1byte);	//enable GPIO[2] as output mode

	tmp1byte &= ~(HAL_8192C_HW_GPIO_WPS_BIT);
	rtw_write8(padapter,  GPIO_IN, tmp1byte);		//reset the floating voltage level

	tmp1byte = rtw_read8(padapter, GPIO_IO_SEL);
	tmp1byte &= ~(HAL_8192C_HW_GPIO_WPS_BIT);
	rtw_write8(padapter, GPIO_IO_SEL, tmp1byte);	//enable GPIO[2] as input mode

	tmp1byte =rtw_read8(padapter, GPIO_IN);

	if (tmp1byte == 0xff)
		return ;

	if (tmp1byte&HAL_8192C_HW_GPIO_WPS_BIT)
	{
		bPbcPressed = _TRUE;
	}
#else
	tmp1byte = rtw_read8(padapter, GPIO_IN);
	//RT_TRACE(COMP_IO, DBG_TRACE, ("dm_CheckPbcGPIO - %x\n", tmp1byte));

	if (tmp1byte == 0xff || padapter->init_adpt_in_progress)
		return ;

	if((tmp1byte&HAL_8192C_HW_GPIO_WPS_BIT)==0)
	{
		bPbcPressed = _TRUE;
	}
#endif

	if( _TRUE == bPbcPressed)
	{
		// Here we only set bPbcPressed to true
		// After trigger PBC, the variable will be set to false
		DBG_8192C("CheckPbcGPIO - PBC is pressed\n");

#ifdef RTK_DMP_PLATFORM
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12))
		kobject_uevent(&padapter->pnetdev->dev.kobj, KOBJ_NET_PBC);
#else
		kobject_hotplug(&padapter->pnetdev->class_dev.kobj, KOBJ_NET_PBC);
#endif
#else

		if ( padapter->pid[0] == 0 )
		{	//	0 is the default value and it means the application monitors the HW PBC doesn't privde its pid to driver.
			return;
		}

#ifdef PLATFORM_LINUX
		rtw_signal_process(padapter->pid[0], SIGUSR1);
#endif
#endif
	}
}
static int hi6620_tsensor_probe(struct platform_device *pdev)
{
    struct tsensor_devinfo *devinfo = NULL;
    int ret = 0;

    printk(KERN_INFO "hi6620_tsensor_probe\n");

    /*全局变量初始化 */
    tsensor_gov = kzalloc(sizeof(struct tsensor_governor), GFP_KERNEL);
    if (!tsensor_gov) {
        printk(KERN_ERR "hi6620_tsensor_probe kzalloc failed\n");
        pr_err("%s:Cannot allocate memory\n", __func__);
        return -ENOMEM;
    }

    devinfo = kzalloc(sizeof(struct tsensor_devinfo), GFP_KERNEL);
    if (!devinfo) {
        printk(KERN_ERR "hi6620_tsensor_probe kzalloc failed111\n");
        pr_err("%s:Cannot allocate memory\n", __func__);
        goto probe_err;
    }

    devinfo->pdev = pdev;
    devinfo->dev = &pdev->dev;

    kobject_uevent(&pdev->dev.kobj, KOBJ_ADD);
    platform_set_drvdata(pdev, devinfo);

    /*创建sysfs节点 */
    ret = sysfs_create_group(&pdev->dev.kobj, &tsensor_group);
    if (ret) {
        printk(KERN_ERR "hi6620_tsensor_probe sysfs_create_group failed\n");
        dev_err(&pdev->dev, "could not create sysfs files\n");
        goto probe_err;
    }

    /* Init delayed work to monitor tsensor temperature */
    INIT_DELAYED_WORK(&tsensor_gov->tsensor_monitor_work,
             tsensor_monitor_work_fn);
    tsensor_gov->average_period = TSENSOR_NORMAL_MONITORING_RATE;

    mutex_init(&(tsensor_gov->lock));

    register_reboot_notifier(&tsensor_reboot_nb);

    /*printk(KERN_ERR "before tsensor_init\n");*/

    /*tsensor初始化,AC核解耦后,该调用放到modem_init.c中,因为要使用邮箱和C核NV,需保证C核初始化完成*/
    /*ret = tsensor_init();
    if (ret != 0) {
        dev_err(&pdev->dev, "tsensor_init\n");
        goto probe_err;
    }*/

    printk(KERN_INFO "hi6620_tsensor_probe probe success\n");

    return ret;

probe_err:
    platform_set_drvdata(pdev, NULL);
    if (devinfo)
    {
        kfree(devinfo);
        devinfo = NULL;
    }
    if (tsensor_gov)
    {
        kfree(tsensor_gov);
        tsensor_gov = NULL;
    }
    return ret;
}
Exemple #26
0
static void work_handler(struct work_struct * not_used) {
	kobject_uevent(&recovery_button_driver.recovery_button, KOBJ_OFFLINE);
}
static int pm8058_tz_get_temp(struct thermal_zone_device *thermal,
			      unsigned long *temp)
{
	struct pm8058_tm_device *tm = thermal->devdata;
	DECLARE_COMPLETION_ONSTACK(wait);
	struct adc_chan_result adc_result = {
		.physical = 0lu,
	};
	int rc;

	if (!tm || !temp)
		return -EINVAL;

	*temp = tm->temp;

	rc = adc_channel_request_conv(tm->adc_handle, &wait);
	if (rc < 0) {
		pr_err("%s: adc_channel_request_conv() failed, rc = %d\n",
			__func__, rc);
		return rc;
	}

	wait_for_completion(&wait);

	rc = adc_channel_read_result(tm->adc_handle, &adc_result);
	if (rc < 0) {
		pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
			__func__, rc);
		return rc;
	}

	*temp = adc_result.physical;
	tm->temp = adc_result.physical;

	return 0;
}

static int pm8058_tz_get_mode(struct thermal_zone_device *thermal,
			      enum thermal_device_mode *mode)
{
	struct pm8058_tm_device *tm = thermal->devdata;

	if (!tm || !mode)
		return -EINVAL;

	*mode = tm->mode;

	return 0;
}

static int pm8058_tz_set_mode(struct thermal_zone_device *thermal,
			      enum thermal_device_mode mode)
{
	struct pm8058_tm_device *tm = thermal->devdata;

	if (!tm)
		return -EINVAL;

	if (mode != tm->mode) {
		if (mode == THERMAL_DEVICE_ENABLED)
			pm8058_tm_shutdown_override(tm->pm_chip,
						    SOFTWARE_OVERRIDE_ENABLED);
		else
			pm8058_tm_shutdown_override(tm->pm_chip,
						    SOFTWARE_OVERRIDE_DISABLED);
	}
	tm->mode = mode;

	return 0;
}

static int pm8058_tz_get_trip_type(struct thermal_zone_device *thermal,
				   int trip, enum thermal_trip_type *type)
{
	struct pm8058_tm_device *tm = thermal->devdata;

	if (!tm || trip < 0 || !type)
		return -EINVAL;

	switch (trip) {
	case PM8058_TRIP_STAGE3:
		*type = THERMAL_TRIP_CRITICAL;
		break;
	case PM8058_TRIP_STAGE2:
		*type = THERMAL_TRIP_HOT;
		break;
	case PM8058_TRIP_STAGE1:
		*type = THERMAL_TRIP_HOT;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int pm8058_tz_get_trip_temp(struct thermal_zone_device *thermal,
				   int trip, unsigned long *temp)
{
	struct pm8058_tm_device *tm = thermal->devdata;
	int thresh_temp;

	if (!tm || trip < 0 || !temp)
		return -EINVAL;

	thresh_temp = tm->thresh * PM8058_TEMP_THRESH_STEP +
		      PM8058_TEMP_THRESH_MIN;

	switch (trip) {
	case PM8058_TRIP_STAGE3:
		thresh_temp += 2 * PM8058_TEMP_STAGE_STEP;
		break;
	case PM8058_TRIP_STAGE2:
		thresh_temp += PM8058_TEMP_STAGE_STEP;
		break;
	case PM8058_TRIP_STAGE1:
		break;
	default:
		return -EINVAL;
	}

	*temp = thresh_temp;

	return 0;
}

static int pm8058_tz_get_crit_temp(struct thermal_zone_device *thermal,
				   unsigned long *temp)
{
	struct pm8058_tm_device *tm = thermal->devdata;

	if (!tm || !temp)
		return -EINVAL;

	*temp = tm->thresh * PM8058_TEMP_THRESH_STEP + PM8058_TEMP_THRESH_MIN +
		2 * PM8058_TEMP_STAGE_STEP;

	return 0;
}

static struct thermal_zone_device_ops pm8058_thermal_zone_ops = {
	.get_temp = pm8058_tz_get_temp,
	.get_mode = pm8058_tz_get_mode,
	.set_mode = pm8058_tz_set_mode,
	.get_trip_type = pm8058_tz_get_trip_type,
	.get_trip_temp = pm8058_tz_get_trip_temp,
	.get_crit_temp = pm8058_tz_get_crit_temp,
};

static irqreturn_t pm8058_tm_isr(int irq, void *data)
{
	struct pm8058_tm_device *tm = data;
	int rc;
	u8 reg;

	rc = pm8058_tm_read_ctrl(tm->pm_chip, &reg);
	if (rc < 0)
		goto isr_handled;

	tm->stage = (reg & PM8058_TEMP_STATUS_MASK) >> PM8058_TEMP_STATUS_SHIFT;
	tm->thresh = (reg & PM8058_TEMP_THRESH_MASK) >>
			PM8058_TEMP_THRESH_SHIFT;

	if (reg & (PM8058_TEMP_ST2_SD | PM8058_TEMP_ST3_SD)) {
		reg &= ~(PM8058_TEMP_ST2_SD | PM8058_TEMP_ST3_SD |
			 PM8058_TEMP_STATUS_MASK);
		pm8058_tm_write_ctrl(tm->pm_chip, reg);
	}

	thermal_zone_device_update(tm->tz_dev);

	/* Notify user space */
	if (tm->mode == THERMAL_DEVICE_ENABLED)
		kobject_uevent(&tm->tz_dev->device.kobj, KOBJ_CHANGE);

isr_handled:
	return IRQ_HANDLED;
}

static int pm8058_tm_init_reg(struct pm8058_tm_device *tm)
{
	int rc;
	u8 reg;

	rc = pm8058_tm_read_ctrl(tm->pm_chip, &reg);
	if (rc < 0)
		return rc;

	tm->stage = (reg & PM8058_TEMP_STATUS_MASK) >> PM8058_TEMP_STATUS_SHIFT;
	tm->temp = 0;

	/* Use temperature threshold set 0: (105, 125, 145) */
	tm->thresh = 0;
	reg = (tm->thresh << PM8058_TEMP_THRESH_SHIFT) &
	      PM8058_TEMP_THRESH_MASK;
	rc = pm8058_tm_write_ctrl(tm->pm_chip, reg);
	if (rc < 0)
		return rc;

	/*
	 * Set the PMIC alarm module PWM to have a frequency of 8 Hz. This
	 * helps cut down on the number of unnecessary interrupts fired when
	 * changing between thermal stages.  Also, Enable the over temperature
	 * PWM whenever the PMIC is enabled.
	 */
	reg =  1 << PM8058_TEMP_PWM_EN_SHIFT |
	       3 << PM8058_TEMP_PWM_PER_PRE_SHIFT |
	       3 << PM8058_TEMP_PWM_PER_DIV_SHIFT;

	rc = pm8058_tm_write_pwm(tm->pm_chip, reg);

	return rc;
}
static int __devinit pcb_temp_sensor_probe(struct platform_device *pdev)
{
	struct pcb_temp_sensor_pdata *pdata = pdev->dev.platform_data;
	struct pcb_temp_sensor *temp_sensor;
	int ret = 0;

	if (!pdata) {
		dev_err(&pdev->dev, "%s: platform data missing\n", __func__);
		return -EINVAL;
	}

	temp_sensor = kzalloc(sizeof(struct pcb_temp_sensor), GFP_KERNEL);
	if (!temp_sensor)
		return -ENOMEM;

	/* Init delayed work for PCB sensor temperature */
	INIT_DELAYED_WORK(&temp_sensor->pcb_sensor_work,
			  pcb_sensor_delayed_work_fn);

	spin_lock_init(&temp_sensor->lock);
	mutex_init(&temp_sensor->sensor_mutex);

	temp_sensor->pdev = pdev;
	temp_sensor->dev = &pdev->dev;

	kobject_uevent(&pdev->dev.kobj, KOBJ_ADD);
	platform_set_drvdata(pdev, temp_sensor);

	temp_sensor->therm_fw = kzalloc(sizeof(struct thermal_dev), GFP_KERNEL);
	if (temp_sensor->therm_fw) {
		temp_sensor->therm_fw->name = "pcb_sensor";
		temp_sensor->therm_fw->domain_name = "cpu";
		temp_sensor->therm_fw->dev = temp_sensor->dev;
		temp_sensor->therm_fw->dev_ops = &pcb_sensor_ops;
		thermal_sensor_dev_register(temp_sensor->therm_fw);
	} else {
		dev_err(&pdev->dev, "%s:Cannot alloc memory for thermal fw\n",
			__func__);
		ret = -ENOMEM;
		goto therm_fw_alloc_err;
	}

	ret = sysfs_create_group(&pdev->dev.kobj,
				 &pcb_temp_sensor_group);
	if (ret) {
		dev_err(&pdev->dev, "could not create sysfs files\n");
		goto sysfs_create_err;
	}

	temp_sensor->work_delay = PCB_REPORT_DELAY_MS;
	schedule_delayed_work(&temp_sensor->pcb_sensor_work,
			msecs_to_jiffies(0));

	dev_info(&pdev->dev, "%s : '%s'\n", temp_sensor->therm_fw->name,
			pdata->name);

	return 0;

sysfs_create_err:
	thermal_sensor_dev_unregister(temp_sensor->therm_fw);
	kfree(temp_sensor->therm_fw);
	platform_set_drvdata(pdev, NULL);
therm_fw_alloc_err:
	mutex_destroy(&temp_sensor->sensor_mutex);
	kfree(temp_sensor);
	return ret;
}
static int init_rq_attribs(void)
{
    int i;
    int err = 0;
    const int attr_count = 4;

    struct attribute **attribs =
        kzalloc(sizeof(struct attribute *) * attr_count, GFP_KERNEL);

    if (!attribs) {
        pr_err("%s: Allocate attribs failed!\n", __func__);
        goto rel;
    }

    rq_info.rq_avg = 0;

    attribs[0] = MSM_RQ_STATS_RW_ATTRIB(def_timer_ms);
    attribs[1] = MSM_RQ_STATS_RO_ATTRIB(run_queue_avg);
    attribs[2] = MSM_RQ_STATS_RW_ATTRIB(run_queue_poll_ms);
    attribs[3] = NULL;

    for (i = 0; i < attr_count - 1 ; i++) {
        if (!attribs[i]) {
            pr_err("%s: Allocate attribs[%d] failed!\n", __func__, i);
            goto rel2;
        }
    }

    rq_info.attr_group = kzalloc(sizeof(struct attribute_group),
                                 GFP_KERNEL);
    if (!rq_info.attr_group) {
        pr_err("%s: Allocate rq_info.attr_group failed!\n", __func__);
        goto rel3;
    }
    rq_info.attr_group->attrs = attribs;

    /* Create /sys/devices/system/cpu/cpu0/rq-stats/... */
    rq_info.kobj = kobject_create_and_add("rq-stats",
                                          &get_cpu_sysdev(0)->kobj);
    if (!rq_info.kobj) {
        pr_err("%s: Create rq_info.kobj failed!\n", __func__);
        goto rel3;
    }

    err = sysfs_create_group(rq_info.kobj, rq_info.attr_group);
    if (err)
        kobject_put(rq_info.kobj);
    else
        kobject_uevent(rq_info.kobj, KOBJ_ADD);

    if (!err) {
        pr_info("%s: Initialize done.\n", __func__);
        init_done = 1;
        return err;
    }

rel3:
    kfree(rq_info.attr_group);
    kfree(rq_info.kobj);
rel2:
    for (i = 0; i < attr_count - 1; i++)
        kfree(attribs[i]);
rel:
    kfree(attribs);

    return -ENOMEM;
}
Exemple #30
0
static ssize_t boot_acl_store(struct device *dev, struct device_attribute *attr,
			      const char *buf, size_t count)
{
	struct tb *tb = container_of(dev, struct tb, dev);
	char *str, *s, *uuid_str;
	ssize_t ret = 0;
	uuid_t *acl;
	int i = 0;

	/*
	 * Make sure the value is not bigger than tb->nboot_acl * UUID
	 * length + commas and optional "\n". Also the smallest allowable
	 * string is tb->nboot_acl * ",".
	 */
	if (count > (UUID_STRING_LEN + 1) * tb->nboot_acl + 1)
		return -EINVAL;
	if (count < tb->nboot_acl - 1)
		return -EINVAL;

	str = kstrdup(buf, GFP_KERNEL);
	if (!str)
		return -ENOMEM;

	acl = kcalloc(tb->nboot_acl, sizeof(uuid_t), GFP_KERNEL);
	if (!acl) {
		ret = -ENOMEM;
		goto err_free_str;
	}

	uuid_str = strim(str);
	while ((s = strsep(&uuid_str, ",")) != NULL && i < tb->nboot_acl) {
		size_t len = strlen(s);

		if (len) {
			if (len != UUID_STRING_LEN) {
				ret = -EINVAL;
				goto err_free_acl;
			}
			ret = uuid_parse(s, &acl[i]);
			if (ret)
				goto err_free_acl;
		}

		i++;
	}

	if (s || i < tb->nboot_acl) {
		ret = -EINVAL;
		goto err_free_acl;
	}

	pm_runtime_get_sync(&tb->dev);

	if (mutex_lock_interruptible(&tb->lock)) {
		ret = -ERESTARTSYS;
		goto err_rpm_put;
	}
	ret = tb->cm_ops->set_boot_acl(tb, acl, tb->nboot_acl);
	if (!ret) {
		/* Notify userspace about the change */
		kobject_uevent(&tb->dev.kobj, KOBJ_CHANGE);
	}
	mutex_unlock(&tb->lock);

err_rpm_put:
	pm_runtime_mark_last_busy(&tb->dev);
	pm_runtime_put_autosuspend(&tb->dev);
err_free_acl:
	kfree(acl);
err_free_str:
	kfree(str);

	return ret ?: count;
}