static void cypress_touchkey_con_hw(struct cypress_touchkey_info *dev_info,
								bool flag)
{
	struct cypress_touchkey_info *info =  dev_info;

	gpio_set_value(info->pdata->gpio_led_en, flag ? 1 : 0);

#if defined(SEC_TOUCHKEY_DEBUG)
	dev_notice(&info->client->dev,
			"%s : called with flag %d.\n", __func__, flag);
#endif
}
static int tegra_cec_suspend(struct platform_device *pdev, pm_message_t state)
{
	struct tegra_cec *cec = platform_get_drvdata(pdev);

	/* cancel the work queue */
	cancel_work_sync(&cec->work);

	clk_disable(cec->clk);

	dev_notice(&pdev->dev, "suspended\n");
	return 0;
}
static int mv88fx_initalize_machine_data(struct platform_device *pdev)
{
	struct resource *r = NULL;
	int err = 0;

	mv88fx_snd_debug("mv88fx_initalize_machine_data");

	mv88fx_machine_data.port = pdev->id;
	mv88fx_machine_data.pdata =
		(struct orion_i2s_platform_data *)pdev->dev.platform_data;

	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!r) {
		err = -ENXIO;
		goto error;
	}
	r = request_mem_region(r->start, SZ_16K, DRIVER_NAME);
	if (!r) {
		err = -EBUSY;
		goto error;
	}
	mv88fx_machine_data.res = r;
	mv88fx_machine_data.base = ioremap(r->start, SZ_16K);

	if (!mv88fx_machine_data.base) {
		mv88fx_snd_error("ioremap failed");
		err = -ENOMEM;
		goto error;
	}
	mv88fx_machine_data.base -= MV_AUDIO_REGS_OFFSET(mv88fx_machine_data.port);

	mv88fx_machine_data.irq = platform_get_irq(pdev, 0);
	if (mv88fx_machine_data.irq == NO_IRQ) {
		err = -ENXIO;
		goto error;
	}
#if defined(CONFIG_HAVE_CLK)
	mv88fx_machine_data.clk = clk_get(&pdev->dev, NULL);
	if (IS_ERR(mv88fx_machine_data.clk))
		dev_notice(&pdev->dev, "cannot get clkdev\n");
	else
		clk_enable(mv88fx_machine_data.clk);
#endif
	return 0;
error:
	if (mv88fx_machine_data.base) {
		iounmap(mv88fx_machine_data.base);
		mv88fx_machine_data.base = NULL;
	}
	release_mem_region(mv88fx_machine_data.res->start, SZ_16K);
	return err;
}
static ssize_t touchkey_led_control(struct device *dev,
		 struct device_attribute *attr, const char *buf,
		 size_t count)
{
	struct abov_tk_info *info = dev_get_drvdata(dev);
	struct i2c_client *client = info->client;
	int data;
	int ret;
	u8 cmd;

	ret = sscanf(buf, "%d", &data);
	if (ret != 1) {
		dev_err(&client->dev, "%s: cmd read err\n", __func__);
		return count;
	}

	if (!(data == 0 || data == 1)) {
		dev_err(&client->dev, "%s: wrong command(%d)\n",
			__func__, data);
		return count;
	}

	if (!info->enabled)
		return count;

	if (data == 1) {
		dev_notice(&client->dev, "led on\n");
		cmd = CMD_LED_ON;
	} else {
		dev_notice(&client->dev, "led off\n");
		cmd = CMD_LED_OFF;
	}
	if(info->pdata->gpio_tkey_led_en >= 0)
		gpio_direction_output(info->pdata->gpio_tkey_led_en,data);
	ret = abov_tk_i2c_write(client, ABOV_BTNSTATUS, &cmd, 1);
	if (ret < 0)
		dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);
	return count;
}
Beispiel #5
0
static int ccp_platform_remove(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct ccp_device *ccp = dev_get_drvdata(dev);

	ccp_destroy(ccp);

	kfree(ccp);

	dev_notice(dev, "disabled\n");

	return 0;
}
Beispiel #6
0
static void asus_wireless_notify(struct acpi_device *adev, u32 event)
{
    struct asus_wireless_data *data = acpi_driver_data(adev);

    dev_dbg(&adev->dev, "event=%#x\n", event);
    if (event != 0x88) {
        dev_notice(&adev->dev, "Unknown ASHS event: %#x\n", event);
        return;
    }
    input_report_key(data->idev, KEY_RFKILL, 1);
    input_report_key(data->idev, KEY_RFKILL, 0);
    input_sync(data->idev);
}
static void cypress_touchkey_brightness_set
		(struct led_classdev *led_cdev, enum led_brightness brightness)
{
	/* Must not sleep, use a workqueue if needed */
	if (!info)
		return;

	info->brightness = brightness;

	if (info->current_status && !touchkey_update_status)
		queue_work(info->led_wq, &info->led_work);
	else
		dev_notice(&info->client->dev, "%s under suspend status or FW updating\n", __func__);
}
Beispiel #8
0
static int ccp_get_irqs(struct ccp_device *ccp)
{
	struct device *dev = ccp->dev;
	int ret;

	ret = ccp_get_irq(ccp);
	if (!ret)
		return 0;

	/* Couldn't get an interrupt */
	dev_notice(dev, "could not enable interrupts (%d)\n", ret);

	return ret;
}
static void cypress_touchkey_con_hw(struct cypress_touchkey_info *info, bool flag)
{

	if (flag) {
		gpio_set_value(info->pdata->gpio_ldo_en, 1);
		gpio_set_value(info->pdata->gpio_led_en, 1);
	} else {
		gpio_set_value(info->pdata->gpio_led_en, 0);
		gpio_set_value(info->pdata->gpio_ldo_en, 0);
	}
#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
	dev_notice(&info->client->dev, "%s : called with flag %d.\n", __func__, flag);
#endif
}
Beispiel #10
0
static ssize_t tc300k_led_control(struct device *dev,
	 struct device_attribute *attr, const char *buf, size_t count)
{
	struct tc300k_data *data = dev_get_drvdata(dev);
	struct i2c_client *client = data->client;
	int scan_buffer;
	int ret;
	u8 cmd;

	ret = sscanf(buf, "%d", &scan_buffer);
	if (ret != 1) {
		dev_err(&client->dev, "%s: cmd read err\n", __func__);
		return count;
	}

	if (!(scan_buffer == 0 || scan_buffer == 1)) {
		dev_err(&client->dev, "%s: wrong command(%d)\n",
			__func__, scan_buffer);
		return count;
	}

	if ((!data->enabled) || data->fw_downloding)
		return count;

	if (scan_buffer == 1) {
		dev_notice(&client->dev, "led on\n");
		cmd = TC300K_CMD_LED_ON;
	} else {
		dev_notice(&client->dev, "led off\n");
		cmd = TC300K_CMD_LED_OFF;
	}
	ret = i2c_smbus_write_byte_data(client, TC300K_CMD_ADDR, cmd);
	if (ret < 0)
		dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);

	return count;
}
static ssize_t touchkey_fw_update(struct device *dev,
			struct device_attribute *attr, const char *buf, size_t count)
{
	struct abov_tk_info *info = dev_get_drvdata(dev);
	struct i2c_client *client = info->client;
	int ret;
	u8 cmd;

	if (info->fw_update_possible == false) {
		dev_err(&client->dev, "%s fail (no reset pin)\n", __func__);
		info->fw_update_state = 2;
		goto touchkey_fw_update_out;
	}

	switch(*buf) {
	case 's':
	case 'S':
		cmd = BUILT_IN;
		break;
	case 'i':
	case 'I':
		cmd = SDCARD;
		break;
	default:
		info->fw_update_state = 2;
		goto touchkey_fw_update_out;
	}

	info->fw_update_state = 1;
	disable_irq(info->irq);
	info->enabled = false;
	ret = abov_flash_fw(info, false, cmd);
	if (info->glovemode)
		abov_glove_mode_enable(client, CMD_GLOVE_ON);
	info->enabled = true;
	enable_irq(info->irq);
	if (ret) {
		dev_err(&client->dev, "%s fail\n", __func__);
		info->fw_update_state = 2;
	} else {
		dev_notice(&client->dev, "%s success\n", __func__);
		info->fw_update_state = 0;
	}

touchkey_fw_update_out:
	dev_dbg(&client->dev, "%s : %d\n", __func__, info->fw_update_state);

	return count;
}
Beispiel #12
0
/*
* The open implementation.
*/
static int kern_open(struct inode *inode, struct file *filp)
{
	/* you can use dev_printk like you would printk only with the
	added device... */
	dev_printk(KERN_DEBUG, my_device, "this is my debug message");
	/* or better yet, use the predefined ones: */
	dev_emerg(my_device, "emergency");
	dev_alert(my_device, "alert");
	dev_crit(my_device, "critical");
	dev_err(my_device, "error");
	dev_warn(my_device, "warning");
	dev_notice(my_device, "notice");
	dev_info(my_device, "info");
	return 0;
}
Beispiel #13
0
void ni_tio_handle_interrupt(struct ni_gpct *counter,
			     struct comedi_subdevice *s)
{
	unsigned int cidx = counter->counter_index;
	unsigned long flags;
	int gate_error;
	int tc_error;
	int perm_stale_data;

	ni_tio_acknowledge_and_confirm(counter, &gate_error, &tc_error,
				       &perm_stale_data);
	if (gate_error) {
		dev_notice(counter->counter_dev->dev->class_dev,
			   "%s: Gi_Gate_Error detected.\n", __func__);
		s->async->events |= COMEDI_CB_OVERFLOW;
	}
	if (perm_stale_data)
		s->async->events |= COMEDI_CB_ERROR;
	switch (counter->counter_dev->variant) {
	case ni_gpct_variant_m_series:
	case ni_gpct_variant_660x:
		if (ni_tio_read(counter, NITIO_DMA_STATUS_REG(cidx)) &
		    GI_DRQ_ERROR) {
			dev_notice(counter->counter_dev->dev->class_dev,
				   "%s: Gi_DRQ_Error detected.\n", __func__);
			s->async->events |= COMEDI_CB_OVERFLOW;
		}
		break;
	case ni_gpct_variant_e_series:
		break;
	}
	spin_lock_irqsave(&counter->lock, flags);
	if (counter->mite_chan)
		mite_ack_linkc(counter->mite_chan, s, true);
	spin_unlock_irqrestore(&counter->lock, flags);
}
Beispiel #14
0
void iwmct_dbg_init_params(struct iwmct_priv *priv)
{
#ifdef CONFIG_IWMC3200TOP_DEBUG
	int i;

	for (i = 0; i < log_level_argc; i++) {
		dev_notice(&priv->func->dev, "log_level[%d]=0x%X\n",
						i, log_level[i]);
		iwmct_log_set_filter((log_level[i] >> 8) & 0xFF,
			       log_level[i] & 0xFF);
	}
	for (i = 0; i < log_level_fw_argc; i++) {
		dev_notice(&priv->func->dev, "log_level_fw[%d]=0x%X\n",
						i, log_level_fw[i]);
		iwmct_log_set_fw_filter((log_level_fw[i] >> 8) & 0xFF,
				  log_level_fw[i] & 0xFF);
	}
#endif

	priv->dbg.blocks = blocks;
	LOG_INFO(priv, INIT, "blocks=%d\n", blocks);
	priv->dbg.dump = (bool)dump;
	LOG_INFO(priv, INIT, "dump=%d\n", dump);
	priv->dbg.jump = (bool)jump;
	LOG_INFO(priv, INIT, "jump=%d\n", jump);
	priv->dbg.direct = (bool)direct;
	LOG_INFO(priv, INIT, "direct=%d\n", direct);
	priv->dbg.checksum = (bool)checksum;
	LOG_INFO(priv, INIT, "checksum=%d\n", checksum);
	priv->dbg.fw_download = (bool)fw_download;
	LOG_INFO(priv, INIT, "fw_download=%d\n", fw_download);
	priv->dbg.block_size = block_size;
	LOG_INFO(priv, INIT, "block_size=%d\n", block_size);
	priv->dbg.download_trans_blks = download_trans_blks;
	LOG_INFO(priv, INIT, "download_trans_blks=%d\n", download_trans_blks);
}
Beispiel #15
0
/*
 * Function: dma_dwc_init
 * arguments: hsdev
 * returns status
 * This function initializes the SATA DMA driver
 */
static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq)
{
	int err;

	err = dma_request_interrupts(hsdev, irq);
	if (err) {
		dev_err(host_pvt.dwc_dev, "%s: dma_request_interrupts returns"
			" %d\n", __func__, err);
		goto error_out;
	}

	/* Enabe DMA */
	out_le32(&(host_pvt.sata_dma_regs->dma_cfg.low), DMA_EN);

	dev_notice(host_pvt.dwc_dev, "DMA initialized\n");
	dev_d
Beispiel #16
0
static ssize_t set_pwm(struct device *dev, struct device_attribute
		       *devattr, const char *buf, size_t count)
{
	struct pc87427_data *data = dev_get_drvdata(dev);
	int nr = to_sensor_dev_attr(devattr)->index;
	unsigned long val;
	int iobase = data->address[LD_FAN];
	u8 mode;

	if (kstrtoul(buf, 10, &val) < 0 || val > 0xff)
		return -EINVAL;

	mutex_lock(&data->lock);
	pc87427_readall_pwm(data, nr);
	mode = data->pwm_enable[nr] & PWM_ENABLE_MODE_MASK;
	if (mode != PWM_MODE_MANUAL && mode != PWM_MODE_OFF) {
		dev_notice(dev,
			   "Can't set PWM%d duty cycle while not in manual mode\n",
			   nr + 1);
		mutex_unlock(&data->lock);
		return -EPERM;
	}

	/* We may have to change the mode */
	if (mode == PWM_MODE_MANUAL && val == 0) {
		/* Transition from Manual to Off */
		update_pwm_enable(data, nr, PWM_MODE_OFF);
		mode = PWM_MODE_OFF;
		dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1,
			"manual", "off");
	} else if (mode == PWM_MODE_OFF && val != 0) {
		/* Transition from Off to Manual */
		update_pwm_enable(data, nr, PWM_MODE_MANUAL);
		mode = PWM_MODE_MANUAL;
		dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1,
			"off", "manual");
	}

	data->pwm[nr] = val;
	if (mode == PWM_MODE_MANUAL)
		outb(val, iobase + PC87427_REG_PWM_DUTY);
	mutex_unlock(&data->lock);

	return count;
}
Beispiel #17
0
static void xonar_ext_power_gpio_changed(struct oxygen *chip)
{
	struct xonar_generic *data = chip->model_data;
	u8 has_power;

	has_power = !!(oxygen_read8(chip, data->ext_power_reg)
		       & data->ext_power_bit);
	if (has_power != data->has_power) {
		data->has_power = has_power;
		if (has_power) {
			dev_notice(chip->card->dev, "power restored\n");
		} else {
			dev_crit(chip->card->dev,
				   "Hey! Don't unplug the power cable!\n");
			/* TODO: stop PCMs */
		}
	}
}
static int imx1_pinctrl_parse_groups(struct device_node *np,
				    struct imx1_pin_group *grp,
				    struct imx1_pinctrl_soc_info *info,
				    u32 index)
{
	int size;
	const __be32 *list;
	int i;

	dev_dbg(info->dev, "group(%d): %s\n", index, np->name);

	/* Initialise group */
	grp->name = np->name;

	/*
	 * the binding format is fsl,pins = <PIN MUX_ID CONFIG>
	 */
	list = of_get_property(np, "fsl,pins", &size);
	/* we do not check return since it's safe node passed down */
	if (!size || size % 12) {
		dev_notice(info->dev, "Not a valid fsl,pins property (%s)\n",
				np->name);
		return -EINVAL;
	}

	grp->npins = size / 12;
	grp->pins = devm_kzalloc(info->dev,
			grp->npins * sizeof(struct imx1_pin), GFP_KERNEL);
	grp->pin_ids = devm_kzalloc(info->dev,
			grp->npins * sizeof(unsigned int), GFP_KERNEL);

	if (!grp->pins || !grp->pin_ids)
		return -ENOMEM;

	for (i = 0; i < grp->npins; i++) {
		grp->pins[i].pin_id = be32_to_cpu(*list++);
		grp->pins[i].mux_id = be32_to_cpu(*list++);
		grp->pins[i].config = be32_to_cpu(*list++);

		grp->pin_ids[i] = grp->pins[i].pin_id;
	}

	return 0;
}
Beispiel #19
0
static int ccp_get_irq(struct ccp_device *ccp)
{
	struct device *dev = ccp->dev;
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	int ret;

	ret = platform_get_irq(pdev, 0);
	if (ret < 0)
		return ret;

	ccp->irq = ret;
	ret = request_irq(ccp->irq, ccp_irq_handler, 0, "ccp", dev);
	if (ret) {
		dev_notice(dev, "unable to allocate IRQ (%d)\n", ret);
		return ret;
	}

	return 0;
}
static int tegra_cec_suspend(struct platform_device *pdev, pm_message_t state)
{
	struct tegra_cec *cec = platform_get_drvdata(pdev);

	atomic_set(&cec->init_cancel, 1);
	wmb();

	wake_up_interruptible(&cec->suspend_waitq);

	/* cancel the work queue */
	cancel_work_sync(&cec->work);

	atomic_set(&cec->init_done, 0);
	atomic_set(&cec->init_cancel, 0);

	clk_disable(cec->clk);

	dev_notice(&pdev->dev, "suspended\n");
	return 0;
}
static int abov_tk_suspend(struct device *dev)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct abov_tk_info *info = i2c_get_clientdata(client);

	if (!info->enabled)
		return 0;

	dev_notice(&info->client->dev, "%s: users=%d\n", __func__,
		   info->input_dev->users);

	disable_irq(info->irq);
	info->enabled = false;
	release_all_fingers(info);

	if (info->pdata->power)
		info->pdata->power(info->pdata, false);
	else
		abov_sleep_mode(client, CMD_STOP_MODE);


	return 0;
}
Beispiel #22
0
static int ambarella_wdt_release(struct inode *inode, struct file *file)
{
	int					errorCode = -EBUSY;
	struct ambarella_wdt_info		*pinfo;

	pinfo = (struct ambarella_wdt_info *)file->private_data;

	if (pinfo) {
		if (pinfo->state == AMBA_WDT_CLOSE_STATE_ALLOW) {
			ambarella_wdt_stop(pinfo);
		} else {
			dev_notice(pinfo->dev,
				"Not stopping watchdog, V first!\n");
			ambarella_wdt_keepalive(pinfo);
		}

		pinfo->state = AMBA_WDT_CLOSE_STATE_DISABLE;
		up(&pinfo->wdt_mutex);
		errorCode = 0;
	}

	return errorCode;
}
Beispiel #23
0
static int gadc_thermal_read_linear_lookup_table(struct device *dev,
						 struct gadc_thermal_info *gti)
{
	struct device_node *np = dev->of_node;
	int ntable;
	int ret;

	ntable = of_property_count_elems_of_size(np, "temperature-lookup-table",
						 sizeof(u32));
	if (ntable <= 0) {
		dev_notice(dev, "no lookup table, assuming DAC channel returns milliCelcius\n");
		return 0;
	}

	if (ntable % 2) {
		dev_err(dev, "Pair of temperature vs ADC read value missing\n");
		return -EINVAL;
	}

	gti->lookup_table = devm_kcalloc(dev,
					 ntable, sizeof(*gti->lookup_table),
					 GFP_KERNEL);
	if (!gti->lookup_table)
		return -ENOMEM;

	ret = of_property_read_u32_array(np, "temperature-lookup-table",
					 (u32 *)gti->lookup_table, ntable);
	if (ret < 0) {
		dev_err(dev, "Failed to read temperature lookup table: %d\n",
			ret);
		return ret;
	}

	gti->nlookup_table = ntable / 2;

	return 0;
}
Beispiel #24
0
/*
 * netvsc_device_remove - Callback when the root bus device is removed
 */
int netvsc_device_remove(struct hv_device *device)
{
	struct netvsc_device *net_device;
	unsigned long flags;

	net_device = hv_get_drvdata(device);

	netvsc_disconnect_vsp(net_device);

	/*
	 * Since we have already drained, we don't need to busy wait
	 * as was done in final_release_stor_device()
	 * Note that we cannot set the ext pointer to NULL until
	 * we have drained - to drain the outgoing packets, we need to
	 * allow incoming packets.
	 */

	spin_lock_irqsave(&device->channel->inbound_lock, flags);
	hv_set_drvdata(device, NULL);
	spin_unlock_irqrestore(&device->channel->inbound_lock, flags);

	/*
	 * At this point, no one should be accessing net_device
	 * except in here
	 */
	dev_notice(&device->device, "net device safe to remove\n");

	/* Now, we can close the channel safely */
	vmbus_close(device->channel);

	/* Release all resources */
	if (net_device->sub_cb_buf)
		vfree(net_device->sub_cb_buf);

	kfree(net_device);
	return 0;
}
Beispiel #25
0
/*
 * netvsc_device_remove - Callback when the root bus device is removed
 */
int netvsc_device_remove(struct hv_device *device)
{
	struct net_device *ndev = hv_get_drvdata(device);
	struct net_device_context *net_device_ctx = netdev_priv(ndev);
	struct netvsc_device *net_device = net_device_ctx->nvdev;

	netvsc_disconnect_vsp(device);

	net_device_ctx->nvdev = NULL;

	/*
	 * At this point, no one should be accessing net_device
	 * except in here
	 */
	dev_notice(&device->device, "net device safe to remove\n");

	/* Now, we can close the channel safely */
	vmbus_close(device->channel);

	/* Release all resources */
	vfree(net_device->sub_cb_buf);
	free_netvsc_device(net_device);
	return 0;
}
Beispiel #26
0
static int gpio_function_request(struct gpio_chip *gc, unsigned offset)
{
	static bool __print_once;
	struct sh_pfc *pfc = gpio_to_pfc(gc);
	unsigned int mark = pfc->info->func_gpios[offset].enum_id;
	unsigned long flags;
	int ret;

	if (!__print_once) {
		dev_notice(pfc->dev,
			   "Use of GPIO API for function requests is deprecated."
			   " Convert to pinctrl\n");
		__print_once = true;
	}

	if (mark == 0)
		return -EINVAL;

	spin_lock_irqsave(&pfc->lock, flags);
	ret = sh_pfc_config_mux(pfc, mark, PINMUX_TYPE_FUNCTION);
	spin_unlock_irqrestore(&pfc->lock, flags);

	return ret;
}
Beispiel #27
0
static int stm_fdma_fw_request(struct stm_fdma_device *fdev)
{
	const struct firmware *fw = NULL;
	struct ELF32_info *elfinfo = NULL;
	int result = 0;
	int fw_major, fw_minor;
	int hw_major, hw_minor;
	uint8_t *fw_data;

	BUG_ON(!fdev);

	/* Generate FDMA firmware file name */
	result = snprintf(fdev->fw_name, sizeof(fdev->fw_name),
			"fdma_%s_%d.elf", stm_soc(),
			(fdev->fdma_id == -1) ? 0 : fdev->fdma_id);
	BUG_ON(result >= sizeof(fdev->fw_name));

	dev_notice(fdev->dev, "Requesting firmware: %s\n", fdev->fw_name);

	/* Request the FDMA firmware */
	result = request_firmware(&fw, fdev->fw_name, fdev->dev);
	if (result || !fw) {
		dev_err(fdev->dev, "Failed request firmware: not present?\n");
		result = -ENODEV;
		goto error_no_fw;
	}

#ifdef CONFIG_HIBERNATION
	/* Save a copy of the firmware data for future reload */
	fw_data = devm_kzalloc(fdev->dev, fw->size, GFP_KERNEL);
	if (!fw_data) {
		dev_err(fdev->dev, "Cannot allocate memory for firmware\n");
		result = -ENOMEM;
		goto error_elf_init;
	}
	memcpy(fw_data, fw->data, fw->size);
#else
	/* Set pointer to the firmware data */
	fw_data = (uint8_t *) fw->data;
#endif

	/* Initialise firmware as an in-memory ELF file */
	elfinfo = (struct ELF32_info *)ELF32_initFromMem(fw_data, fw->size, 0);
	if (elfinfo == NULL) {
		dev_err(fdev->dev, "Failed to initialise in-memory ELF file\n");
		result = -ENOMEM;
		goto error_elf_init;
	}

	/* Attempt to load the ELF file */
	result = stm_fdma_fw_load(fdev, elfinfo);
	if (result) {
		dev_err(fdev->dev, "Failed to load firmware\n");
		goto error_elf_load;
	}

	/* Retrieve the hardware and firmware versions */
	stm_fdma_hw_get_revisions(fdev, &hw_major, &hw_minor, &fw_major,
			&fw_minor);
	dev_notice(fdev->dev, "SLIM hw %d.%d, FDMA fw %d.%d\n",
			hw_major, hw_minor, fw_major, fw_minor);

	/* Indicate firmware loaded */
	fdev->fw_state = STM_FDMA_FW_STATE_LOADED;

	/* Save pointer to ELF (which points at fw_data) for future reload */
	fdev->fw_elfinfo = elfinfo;

	/* Wake up the wait queue */
	wake_up(&fdev->fw_load_q);

	/* Release the firmware */
	release_firmware(fw);

	return 0;

error_elf_load:
	ELF32_free(elfinfo);
error_elf_init:
	if (fw_data && fw_data != fw->data)
		devm_kfree(fdev->dev, fw_data);
	release_firmware(fw);
error_no_fw:
	fdev->fw_state = STM_FDMA_FW_STATE_ERROR;
	return result;
}
static int piix4_setup(struct pci_dev *PIIX4_dev,
		       const struct pci_device_id *id)
{
	unsigned char temp;
	unsigned short piix4_smba;

	if ((PIIX4_dev->vendor == PCI_VENDOR_ID_SERVERWORKS) &&
	    (PIIX4_dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5))
		srvrworks_csb5_delay = 1;

	/* On some motherboards, it was reported that accessing the SMBus
	   caused severe hardware problems */
	if (dmi_check_system(piix4_dmi_blacklist)) {
		dev_err(&PIIX4_dev->dev,
			"Accessing the SMBus on this system is unsafe!\n");
		return -EPERM;
	}

	/* Don't access SMBus on IBM systems which get corrupted eeproms */
	if (dmi_check_system(piix4_dmi_ibm) &&
			PIIX4_dev->vendor == PCI_VENDOR_ID_INTEL) {
		dev_err(&PIIX4_dev->dev, "IBM system detected; this module "
			"may corrupt your serial eeprom! Refusing to load "
			"module!\n");
		return -EPERM;
	}

	/* Determine the address of the SMBus areas */
	if (force_addr) {
		piix4_smba = force_addr & 0xfff0;
		force = 0;
	} else {
		pci_read_config_word(PIIX4_dev, SMBBA, &piix4_smba);
		piix4_smba &= 0xfff0;
		if(piix4_smba == 0) {
			dev_err(&PIIX4_dev->dev, "SMBus base address "
				"uninitialized - upgrade BIOS or use "
				"force_addr=0xaddr\n");
			return -ENODEV;
		}
	}

	if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name))
		return -ENODEV;

	if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) {
		dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n",
			piix4_smba);
		return -EBUSY;
	}

	pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp);

	/* If force_addr is set, we program the new address here. Just to make
	   sure, we disable the PIIX4 first. */
	if (force_addr) {
		pci_write_config_byte(PIIX4_dev, SMBHSTCFG, temp & 0xfe);
		pci_write_config_word(PIIX4_dev, SMBBA, piix4_smba);
		pci_write_config_byte(PIIX4_dev, SMBHSTCFG, temp | 0x01);
		dev_info(&PIIX4_dev->dev, "WARNING: SMBus interface set to "
			"new address %04x!\n", piix4_smba);
	} else if ((temp & 1) == 0) {
		if (force) {
			/* This should never need to be done, but has been
			 * noted that many Dell machines have the SMBus
			 * interface on the PIIX4 disabled!? NOTE: This assumes
			 * I/O space and other allocations WERE done by the
			 * Bios!  Don't complain if your hardware does weird
			 * things after enabling this. :') Check for Bios
			 * updates before resorting to this.
			 */
			pci_write_config_byte(PIIX4_dev, SMBHSTCFG,
					      temp | 1);
			dev_notice(&PIIX4_dev->dev,
				   "WARNING: SMBus interface has been FORCEFULLY ENABLED!\n");
		} else {
			dev_err(&PIIX4_dev->dev,
				"Host SMBus controller not enabled!\n");
			release_region(piix4_smba, SMBIOSIZE);
			return -ENODEV;
		}
	}

	if (((temp & 0x0E) == 8) || ((temp & 0x0E) == 2))
		dev_dbg(&PIIX4_dev->dev, "Using Interrupt 9 for SMBus.\n");
	else if ((temp & 0x0E) == 0)
		dev_dbg(&PIIX4_dev->dev, "Using Interrupt SMI# for SMBus.\n");
	else
		dev_err(&PIIX4_dev->dev, "Illegal Interrupt configuration "
			"(or code out of date)!\n");

	pci_read_config_byte(PIIX4_dev, SMBREV, &temp);
	dev_info(&PIIX4_dev->dev,
		 "SMBus Host Controller at 0x%x, revision %d\n",
		 piix4_smba, temp);

	return piix4_smba;
}
static int __init tegra_rtc_probe(struct platform_device *pdev)
{
	struct resource *res;
	int ret;

	/* get resources from arch/arm/mach-tegra/board-nvodm.c */
	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(
			&pdev->dev, "Unable to allocate resources for device.\n"
		);
		return -EBUSY;
	}

	tegra_rtc_irq = platform_get_irq(pdev, 0);
	if (tegra_rtc_irq <= 0) {
		tegra_rtc_irq = 0;
		return -EBUSY;
	}

	rtc_base = ioremap(res->start, res->end - res->start + 1);
	if (!rtc_base) {
		dev_err(&pdev->dev, "Unable to grab IOs for device.\n");
		return -EBUSY;
	}

	/* clear out the hardware. */
	tegra_rtc_write_not_busy(&pdev->dev, RTC_TEGRA_REG_SECONDS_ALARM0, 0);
	tegra_rtc_write_not_busy(&pdev->dev, RTC_TEGRA_REG_INTR_STATUS, -1);
	tegra_rtc_write_not_busy(&pdev->dev, RTC_TEGRA_REG_INTR_MASK, 0);

	device_init_wakeup(&pdev->dev, 1);

	rtc_dev = rtc_device_register(
		pdev->name, &pdev->dev, &tegra_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc_dev)) {
		ret = PTR_ERR(rtc_dev);
		rtc_dev = NULL;
		dev_err(&pdev->dev, "Unable to register device (err=%d).\n", ret);
		goto err_iounmap;
	}

	ret = request_irq(tegra_rtc_irq, tegra_rtc_irq_handler,
		IRQF_DISABLED, "rtc alarm", &pdev->dev);
	if (ret) {
		dev_err(&pdev->dev, "Unable to request interrupt for device (err=%d).\n", ret);
		goto err_dev_unreg;
	}

	dev_notice(&pdev->dev, "Tegra internal Real Time Clock\n");

	return 0;

err_dev_unreg:
	rtc_device_unregister(rtc_dev);
	rtc_dev = NULL;
err_iounmap:
	iounmap(rtc_base);
	rtc_base = NULL;

	return ret;
}
Beispiel #30
0
static int __devinit fsl_ssi_probe(struct platform_device *pdev,
				   const struct of_device_id *match)
{
	struct fsl_ssi_private *ssi_private;
	int ret = 0;
	struct device_attribute *dev_attr = NULL;
	struct device_node *np = pdev->dev.of_node;
	const char *p, *sprop;
	const uint32_t *iprop;
	struct resource res;
	char name[64];

	/* SSIs that are not connected on the board should have a
	 *      status = "disabled"
	 * property in their device tree nodes.
	 */
	if (!of_device_is_available(np))
		return -ENODEV;

	/* Check for a codec-handle property. */
	if (!of_get_property(np, "codec-handle", NULL)) {
		dev_err(&pdev->dev, "missing codec-handle property\n");
		return -ENODEV;
	}

	/* We only support the SSI in "I2S Slave" mode */
	sprop = of_get_property(np, "fsl,mode", NULL);
	if (!sprop || strcmp(sprop, "i2s-slave")) {
		dev_notice(&pdev->dev, "mode %s is unsupported\n", sprop);
		return -ENODEV;
	}

	/* The DAI name is the last part of the full name of the node. */
	p = strrchr(np->full_name, '/') + 1;
	ssi_private = kzalloc(sizeof(struct fsl_ssi_private) + strlen(p),
			      GFP_KERNEL);
	if (!ssi_private) {
		dev_err(&pdev->dev, "could not allocate DAI object\n");
		return -ENOMEM;
	}

	strcpy(ssi_private->name, p);

	/* Initialize this copy of the CPU DAI driver structure */
	memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_dai_template,
	       sizeof(fsl_ssi_dai_template));
	ssi_private->cpu_dai_drv.name = ssi_private->name;

	/* Get the addresses and IRQ */
	ret = of_address_to_resource(np, 0, &res);
	if (ret) {
		dev_err(&pdev->dev, "could not determine device resources\n");
		kfree(ssi_private);
		return ret;
	}
	ssi_private->ssi = ioremap(res.start, 1 + res.end - res.start);
	ssi_private->ssi_phys = res.start;
	ssi_private->irq = irq_of_parse_and_map(np, 0);

	/* Are the RX and the TX clocks locked? */
	if (of_find_property(np, "fsl,ssi-asynchronous", NULL))
		ssi_private->asynchronous = 1;
	else
		ssi_private->cpu_dai_drv.symmetric_rates = 1;

	/* Determine the FIFO depth. */
	iprop = of_get_property(np, "fsl,fifo-depth", NULL);
	if (iprop)
		ssi_private->fifo_depth = *iprop;
	else
                /* Older 8610 DTs didn't have the fifo-depth property */
		ssi_private->fifo_depth = 8;

	/* Initialize the the device_attribute structure */
	dev_attr = &ssi_private->dev_attr;
	dev_attr->attr.name = "statistics";
	dev_attr->attr.mode = S_IRUGO;
	dev_attr->show = fsl_sysfs_ssi_show;

	ret = device_create_file(&pdev->dev, dev_attr);
	if (ret) {
		dev_err(&pdev->dev, "could not create sysfs %s file\n",
			ssi_private->dev_attr.attr.name);
		goto error;
	}

	/* Register with ASoC */
	dev_set_drvdata(&pdev->dev, ssi_private);

	ret = snd_soc_register_dai(&pdev->dev, &ssi_private->cpu_dai_drv);
	if (ret) {
		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
		goto error;
	}

	/* Trigger the machine driver's probe function.  The platform driver
	 * name of the machine driver is taken from the /model property of the
	 * device tree.  We also pass the address of the CPU DAI driver
	 * structure.
	 */
	sprop = of_get_property(of_find_node_by_path("/"), "model", NULL);
	/* Sometimes the model name has a "fsl," prefix, so we strip that. */
	p = strrchr(sprop, ',');
	if (p)
		sprop = p + 1;
	snprintf(name, sizeof(name), "snd-soc-%s", sprop);
	make_lowercase(name);

	ssi_private->pdev =
		platform_device_register_data(&pdev->dev, name, 0, NULL, 0);
	if (IS_ERR(ssi_private->pdev)) {
		ret = PTR_ERR(ssi_private->pdev);
		dev_err(&pdev->dev, "failed to register platform: %d\n", ret);
		goto error;
	}

	return 0;

error:
	snd_soc_unregister_dai(&pdev->dev);
	dev_set_drvdata(&pdev->dev, NULL);
	if (dev_attr)
		device_remove_file(&pdev->dev, dev_attr);
	irq_dispose_mapping(ssi_private->irq);
	iounmap(ssi_private->ssi);
	kfree(ssi_private);

	return ret;
}