Beispiel #1
0
/* this is for power init */
void gpu_power_init(void)
{
#ifdef CONFIG_PM_RUNTIME
	pm_suspend_ignore_children(&gpsPVRLDMDev->dev, true);
	pm_runtime_enable(&gpsPVRLDMDev->dev);
#endif
}
/** This funtion is invoked when mali device needs to be activated.
*/
void _mali_osk_pmm_dev_activate(void)
{
	
#if MALI_LICENSE_IS_GPL
#ifdef CONFIG_PM_RUNTIME
#if MALI_PMM_RUNTIME_JOB_CONTROL_ON
	int err = 0;
	if(is_runtime == 0)
	{
		pm_suspend_ignore_children(&(mali_gpu_device.dev), true);
		pm_runtime_enable(&(mali_gpu_device.dev));
 		pm_runtime_get_sync(&(mali_gpu_device.dev));
		is_runtime = 1;
	}
	else
	{
		err = pm_runtime_get_sync(&(mali_gpu_device.dev));
	}
	if(err)
        {
		MALI_DEBUG_PRINT(4, ("OSPMM: Error in _mali_osk_pmm_dev_activate\n" ));
        }
#endif /* MALI_PMM_RUNTIME_JOB_CONTROL_ON */
#endif /* CONFIG_PM_RUNTIME */
#endif /* MALI_LICENSE_IS_GPL */
}
Beispiel #3
0
mali_error kbase_device_runtime_init(struct kbase_device *kbdev)
{
    pm_suspend_ignore_children(kbdev->osdev.dev, true);
    pm_runtime_enable(kbdev->osdev.dev);
    kbase_device_runtime_init_workqueue(kbdev->osdev.dev);
    mutex_init(&runtime_pm_lock);
    return MALI_ERROR_NONE;
}
static void sprd_sdio_card_remove(struct mmc_card *card) {
    struct mmc_host *host = card->host;
    if (mmc_card_sdio(card)) {
        if(host->caps & MMC_CAP_POWER_OFF_CARD) {
            pm_suspend_ignore_children(mmc_classdev(host), true);  // avoid mmc_attach_sdio->pm_runtime_set_active returning with error -16
            pm_runtime_idle(mmc_classdev(host)); // make platform devices runtime suspendable
        }
    }
}
Beispiel #5
0
static void sprd_sdio_card_remove(struct mmc_card *card) {
    struct mmc_host *host = card->host;
    if (mmc_card_sdio(card)) {
        if(host->caps & MMC_CAP_POWER_OFF_CARD) {
            pm_suspend_ignore_children(mmc_classdev(host), true);  
            pm_runtime_idle(mmc_classdev(host)); 
        }
    }
}
mali_error kbase_device_runtime_init(struct kbase_device *kbdev)
{
	pm_suspend_ignore_children(kbdev->osdev.dev, true);
	pm_runtime_enable(kbdev->osdev.dev);
#ifdef CONFIG_MALI_T6XX_DEBUG_SYS
	if (kbase_platform_create_sysfs_file(kbdev->osdev.dev))
		return MALI_ERROR_FUNCTION_FAILED;
#endif				/* CONFIG_MALI_T6XX_DEBUG_SYS */
	return MALI_ERROR_NONE;
}
Beispiel #7
0
static int sprd_sdio_card_probe(struct mmc_card *card) {
    struct mmc_host *host = card->host;
    if (mmc_card_sdio(card)) {
        if(host->caps & MMC_CAP_POWER_OFF_CARD) {
            pm_runtime_no_callbacks(&card->dev); 
            pm_suspend_ignore_children(mmc_classdev(host), false); 
            return 0;
        }
    }
    return -EINVAL;
}
static int sprd_sdio_card_probe(struct mmc_card *card) {
    struct mmc_host *host = card->host;
    if (mmc_card_sdio(card)) {
        if(host->caps & MMC_CAP_POWER_OFF_CARD) {
            pm_runtime_no_callbacks(&card->dev); // avoid default sdio bus runtime calling
            pm_suspend_ignore_children(mmc_classdev(host), false); // paired with remove function
        }
        return 0;
    }
    return -EINVAL;
}
Beispiel #9
0
static int rcar_vin_probe(struct platform_device *pdev)
{
	const struct of_device_id *match;
	struct rvin_dev *vin;
	struct resource *mem;
	int irq, ret;

	vin = devm_kzalloc(&pdev->dev, sizeof(*vin), GFP_KERNEL);
	if (!vin)
		return -ENOMEM;

	match = of_match_device(of_match_ptr(rvin_of_id_table), &pdev->dev);
	if (!match)
		return -ENODEV;

	vin->dev = &pdev->dev;
	vin->chip = (enum chip_id)match->data;

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (mem == NULL)
		return -EINVAL;

	vin->base = devm_ioremap_resource(vin->dev, mem);
	if (IS_ERR(vin->base))
		return PTR_ERR(vin->base);

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

	ret = rvin_dma_probe(vin, irq);
	if (ret)
		return ret;

	ret = rvin_digital_graph_init(vin);
	if (ret < 0)
		goto error;

	pm_suspend_ignore_children(&pdev->dev, true);
	pm_runtime_enable(&pdev->dev);

	platform_set_drvdata(pdev, vin);

	return 0;
error:
	rvin_dma_remove(vin);

	return ret;
}
Beispiel #10
0
static int rcar_vin_probe(struct platform_device *pdev)
{
	struct rvin_dev *vin;
	struct resource *mem;
	int irq, ret;

	vin = devm_kzalloc(&pdev->dev, sizeof(*vin), GFP_KERNEL);
	if (!vin)
		return -ENOMEM;

	vin->dev = &pdev->dev;

	ret = rvin_parse_dt(vin);
	if (ret)
		return ret;

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (mem == NULL)
		return -EINVAL;

	vin->base = devm_ioremap_resource(vin->dev, mem);
	if (IS_ERR(vin->base))
		return PTR_ERR(vin->base);

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

	ret = rvin_dma_probe(vin, irq);
	if (ret)
		return ret;

	ret = rvin_graph_init(vin);
	if (ret < 0)
		goto error;

	pm_suspend_ignore_children(&pdev->dev, true);
	pm_runtime_enable(&pdev->dev);

	platform_set_drvdata(pdev, vin);

	return 0;
error:
	rvin_dma_remove(vin);

	return ret;
}
Beispiel #11
0
int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
				struct hid_sensor_common *attrb)
{
	int ret;
	struct iio_trigger *trig;

	trig = iio_trigger_alloc("%s-dev%d", name, indio_dev->id);
	if (trig == NULL) {
		dev_err(&indio_dev->dev, "Trigger Allocate Failed\n");
		ret = -ENOMEM;
		goto error_ret;
	}

	trig->dev.parent = indio_dev->dev.parent;
	iio_trigger_set_drvdata(trig, attrb);
	trig->ops = &hid_sensor_trigger_ops;
	ret = iio_trigger_register(trig);

	if (ret) {
		dev_err(&indio_dev->dev, "Trigger Register Failed\n");
		goto error_free_trig;
	}
	attrb->trigger = trig;
	indio_dev->trig = iio_trigger_get(trig);

	ret = pm_runtime_set_active(&indio_dev->dev);
	if (ret)
		goto error_unreg_trigger;

	iio_device_set_drvdata(indio_dev, attrb);
	pm_suspend_ignore_children(&attrb->pdev->dev, true);
	pm_runtime_enable(&attrb->pdev->dev);
	/* Default to 3 seconds, but can be changed from sysfs */
	pm_runtime_set_autosuspend_delay(&attrb->pdev->dev,
					 3000);
	pm_runtime_use_autosuspend(&attrb->pdev->dev);

	return ret;
error_unreg_trigger:
	iio_trigger_unregister(trig);
error_free_trig:
	iio_trigger_free(trig);
error_ret:
	return ret;
}
Beispiel #12
0
static int sh_mobile_i2c_probe(struct platform_device *dev)
{
	struct sh_mobile_i2c_data *pd;
	struct i2c_adapter *adap;
	struct resource *res;
	char clk_name[8];
	int size;
	int ret;

	pd = kzalloc(sizeof(struct sh_mobile_i2c_data), GFP_KERNEL);
	if (pd == NULL) {
		dev_err(&dev->dev, "cannot allocate private data\n");
		return -ENOMEM;
	}

	snprintf(clk_name, sizeof(clk_name), "i2c%d", dev->id);
	pd->clk = clk_get(&dev->dev, clk_name);
	if (IS_ERR(pd->clk)) {
		dev_err(&dev->dev, "cannot get clock \"%s\"\n", clk_name);
		ret = PTR_ERR(pd->clk);
		goto err;
	}

	ret = sh_mobile_i2c_hook_irqs(dev, 1);
	if (ret) {
		dev_err(&dev->dev, "cannot request IRQ\n");
		goto err_clk;
	}

	pd->dev = &dev->dev;
	platform_set_drvdata(dev, pd);

	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
	if (res == NULL) {
		dev_err(&dev->dev, "cannot find IO resource\n");
		ret = -ENOENT;
		goto err_irq;
	}

	size = resource_size(res);

	pd->reg = ioremap(res->start, size);
	if (pd->reg == NULL) {
		dev_err(&dev->dev, "cannot map IO\n");
		ret = -ENXIO;
		goto err_irq;
	}

	/* The IIC blocks on SH-Mobile ARM processors
	 * come with two new bits in ICIC.
	 */
	if (size > 0x17)
		pd->flags |= IIC_FLAG_HAS_ICIC67;

	/* Enable Runtime PM for this device.
	 *
	 * Also tell the Runtime PM core to ignore children
	 * for this device since it is valid for us to suspend
	 * this I2C master driver even though the slave devices
	 * on the I2C bus may not be suspended.
	 *
	 * The state of the I2C hardware bus is unaffected by
	 * the Runtime PM state.
	 */
	pm_suspend_ignore_children(&dev->dev, true);
	pm_runtime_enable(&dev->dev);

	/* setup the private data */
	adap = &pd->adap;
	i2c_set_adapdata(adap, pd);

	adap->owner = THIS_MODULE;
	adap->algo = &sh_mobile_i2c_algorithm;
	adap->dev.parent = &dev->dev;
	adap->retries = 5;
	adap->nr = dev->id;

	strlcpy(adap->name, dev->name, sizeof(adap->name));

	spin_lock_init(&pd->lock);
	init_waitqueue_head(&pd->wait);

	ret = i2c_add_numbered_adapter(adap);
	if (ret < 0) {
		dev_err(&dev->dev, "cannot add numbered adapter\n");
		goto err_all;
	}

	return 0;

 err_all:
	iounmap(pd->reg);
 err_irq:
	sh_mobile_i2c_hook_irqs(dev, 0);
 err_clk:
	clk_put(pd->clk);
 err:
	kfree(pd);
	return ret;
}
Beispiel #13
0
static mali_error gpu_device_runtime_init(struct kbase_device *kbdev)
{
	pm_suspend_ignore_children(kbdev->dev, true);
	return 0;
}
Beispiel #14
0
static int sdhci_acpi_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	acpi_handle handle = ACPI_HANDLE(dev);
	struct acpi_device *device;
	struct sdhci_acpi_host *c;
	struct sdhci_host *host;
	struct resource *iomem;
	resource_size_t len;
	const char *hid;
	int err;

	if (acpi_bus_get_device(handle, &device))
		return -ENODEV;

	if (acpi_bus_get_status(device) || !device->status.present)
		return -ENODEV;

	hid = acpi_device_hid(device);

	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!iomem)
		return -ENOMEM;

	len = resource_size(iomem);
	if (len < 0x100)
		dev_err(dev, "Invalid iomem size!\n");

	if (!devm_request_mem_region(dev, iomem->start, len, dev_name(dev)))
		return -ENOMEM;

	host = sdhci_alloc_host(dev, sizeof(struct sdhci_acpi_host));
	if (IS_ERR(host))
		return PTR_ERR(host);

	c = sdhci_priv(host);
	c->host = host;
	c->slot = sdhci_acpi_get_slot(handle, hid);
	c->pdev = pdev;
	c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM);

	platform_set_drvdata(pdev, c);

	host->hw_name	= "ACPI";
	host->ops	= &sdhci_acpi_ops_dflt;
	host->irq	= platform_get_irq(pdev, 0);

	host->ioaddr = devm_ioremap_nocache(dev, iomem->start,
					    resource_size(iomem));
	if (host->ioaddr == NULL) {
		err = -ENOMEM;
		goto err_free;
	}

	if (!dev->dma_mask) {
		u64 dma_mask;

		if (sdhci_readl(host, SDHCI_CAPABILITIES) & SDHCI_CAN_64BIT) {
			/* 64-bit DMA is not supported at present */
			dma_mask = DMA_BIT_MASK(32);
		} else {
			dma_mask = DMA_BIT_MASK(32);
		}

		err = dma_coerce_mask_and_coherent(dev, dma_mask);
		if (err)
			goto err_free;
	}

	if (c->slot) {
		if (c->slot->chip) {
			host->ops            = c->slot->chip->ops;
			host->quirks        |= c->slot->chip->quirks;
			host->quirks2       |= c->slot->chip->quirks2;
			host->mmc->caps     |= c->slot->chip->caps;
			host->mmc->caps2    |= c->slot->chip->caps2;
			host->mmc->pm_caps  |= c->slot->chip->pm_caps;
		}
		host->quirks        |= c->slot->quirks;
		host->quirks2       |= c->slot->quirks2;
		host->mmc->caps     |= c->slot->caps;
		host->mmc->caps2    |= c->slot->caps2;
		host->mmc->pm_caps  |= c->slot->pm_caps;
	}

	host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;

	err = sdhci_add_host(host);
	if (err)
		goto err_free;

	if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
		if (sdhci_acpi_add_own_cd(dev, host->mmc))
			c->use_runtime_pm = false;
	}

	if (c->use_runtime_pm) {
		pm_runtime_set_active(dev);
		pm_suspend_ignore_children(dev, 1);
		pm_runtime_set_autosuspend_delay(dev, 50);
		pm_runtime_use_autosuspend(dev);
		pm_runtime_enable(dev);
	}

	return 0;

err_free:
	sdhci_free_host(c->host);
	return err;
}
Beispiel #15
0
static int __devinit sdhci_sprd_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct sdhci_host *host;
	struct resource *res;
	int ret, irq;
#ifdef CONFIG_MMC_CARD_HOTPLUG
	int sd_detect_gpio;
	int detect_irq;
#endif
	struct sprd_host_data *host_data;

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(dev, "no irq specified\n");
		return irq;
	}

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(dev, "no memory specified\n");
		return -ENOENT;
	}

	if(pdev->id == 0)
	{
		sd_buffer_pre_alloc();
	}

	host = sdhci_alloc_host(dev, sizeof(struct sprd_host_data));
	if (IS_ERR(host)) {
		dev_err(dev, "sdhci_alloc_host() failed\n");
		return PTR_ERR(host);
	}

	host_data = sdhci_priv(host);
	host_data->platdata = dev_get_platdata(dev);
	host_data->clk_enable = 0;
	BUG_ON(NULL == host_data->platdata);
	printk("sdio probe %s, vdd %s (%d), clk %s parent %s\n",
		host_data->platdata->hw_name,
		host_data->platdata->vdd_name,	host_data->platdata->volt_level,
		host_data->platdata->clk_name, host_data->platdata->clk_parent);

	platform_set_drvdata(pdev, host);
	host->vmmc = NULL;
	host->vmmc_ext = NULL;
	host->ioaddr = (void __iomem *)res->start;
	printk("sdio: host->ioaddr:0x%x\n", (u32)host->ioaddr);
	host->hw_name = (host_data->platdata->hw_name)?
		host_data->platdata->hw_name:pdev->name;
	host->ops = &sdhci_sprd_ops;
	host->quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |\
		SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |\
		SDHCI_QUIRK_BROKEN_CARD_DETECTION|\
		SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
	host->irq = irq;
#ifdef CONFIG_MMC_CARD_HOTPLUG
	sd_detect_gpio = host_data->platdata->detect_gpio;
	if(sd_detect_gpio > 0){
		pr_info("%s, sd_detect_gpio:%d\n", __func__, sd_detect_gpio);

		if (0 == pdev->id){
			ret = gpio_request(sd_detect_gpio, "sdio0_detect");
		}else{
			ret = gpio_request(sd_detect_gpio, "sdio1_detect");
		}

		if (ret) {
			dev_err(dev, "cannot request gpio\n");
			return -1;
		}

		ret = gpio_direction_input(sd_detect_gpio);
		if (ret) {
			dev_err(dev, "gpio can not change to input\n");
			return -1;
		}

		detect_irq = gpio_to_irq(sd_detect_gpio);
		if (detect_irq < 0){
			dev_err(dev, "cannot alloc detect irq\n");
			return -1;
		}
		host_data->detect_irq = detect_irq;
	}else if (host_data->platdata->register_status_notify) {
		host_data->platdata->register_status_notify(sdhci_status_notify_cb, host);
	} else if (!host_data->platdata->status) {
		printk("%s: No card detect facilities available\n",
				mmc_hostname(host->mmc));
	}else{
		printk("%s, sd_detect_gpio == 0 \n", __func__ );
	}
#endif

	if(host_data->platdata->vdd_name) {
		host->vmmc = regulator_get(NULL, host_data->platdata->vdd_name);
		BUG_ON(IS_ERR(host->vmmc));
		
		if(!is_sd_slot(host))
			regulator_enable(host->vmmc);
	}
	if(host_data->platdata->vdd_ext_name) {
		host->vmmc_ext = regulator_get(NULL, host_data->platdata->vdd_ext_name);
		BUG_ON(IS_ERR(host->vmmc_ext));
		regulator_enable(host->vmmc_ext);
	}

	host->clk = NULL;
	sdhci_module_init(host);

	switch(pdev->id) {
		case 0:
			host->mmc->pm_flags |= MMC_PM_ONLY_USED_SDIO0_SHARK;
			host->caps = sdhci_readl(host, SDHCI_CAPABILITIES) & (~(SDHCI_CAN_VDD_330 | SDHCI_CAN_VDD_180));
			host->quirks |= SDHCI_QUIRK_MISSING_CAPS;
			host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY;
			break;
		case 1:
		        host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY|MMC_PM_KEEP_POWER |MMC_PM_DISABLE_TIMEOUT_IRQ;
                host->mmc->pm_caps |= MMC_PM_KEEP_POWER |MMC_PM_DISABLE_TIMEOUT_IRQ;
				#ifdef CONFIG_SDIO_CARD
                host->mmc->caps |= MMC_CAP_4_BIT_DATA |MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD;
				#else
				host->mmc->caps |= MMC_CAP_4_BIT_DATA |MMC_CAP_NONREMOVABLE;
				#endif
			break;
		case 2:
			host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY | MMC_PM_KEEP_POWER;
			host->mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD;
			break;
		case 3:
			host->caps = sdhci_readl(host, SDHCI_CAPABILITIES) & (~(SDHCI_CAN_VDD_330 | SDHCI_CAN_VDD_300));
			host->quirks |= SDHCI_QUIRK_MISSING_CAPS;
			host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY | MMC_PM_KEEP_POWER;
			host->mmc->caps |= MMC_CAP_NONREMOVABLE | MMC_CAP_8_BIT_DATA | MMC_CAP_HW_RESET;
			break;
		default:
			BUG();
			break;
	}

#ifdef CONFIG_PM_RUNTIME
		switch(pdev->id) {
			case 1:
			case 2:
                        #ifdef CONFIG_SDIO_CARD
			pm_runtime_set_active(&pdev->dev);
			pm_runtime_set_autosuspend_delay(&pdev->dev, 100);
			pm_runtime_use_autosuspend(&pdev->dev);
			pm_runtime_enable(&pdev->dev);
			pm_runtime_no_callbacks(mmc_classdev(host->mmc));
			pm_suspend_ignore_children(mmc_classdev(host->mmc), true);
			pm_runtime_set_active(mmc_classdev(host->mmc));
			pm_runtime_enable(mmc_classdev(host->mmc));
                        #endif
			break;
			case 3:
			case 0:
			pm_suspend_ignore_children(&pdev->dev, true);
			pm_runtime_set_active(&pdev->dev);
			pm_runtime_set_autosuspend_delay(&pdev->dev, 100);
			pm_runtime_use_autosuspend(&pdev->dev);
			pm_runtime_enable(&pdev->dev);
			default:
			break;
			}
#endif

	ret = sdhci_add_host(host);
	if (ret) {
		dev_err(dev, "sdhci_add_host() failed\n");
		goto err_add_host;
	}

#ifdef CONFIG_MMC_BUS_SCAN
	if (pdev->id == 1)
		sdhci_host_g = host;
#endif

	return 0;

err_add_host:
#ifdef CONFIG_PM_RUNTIME
	pm_runtime_disable(&(pdev)->dev);
	pm_runtime_set_suspended(&(pdev)->dev);
#endif
	if (host_data->clk_enable) {
		clk_disable(host->clk);
		host_data->clk_enable = 0;
	}
	sdhci_free_host(host);
	return ret;
}
Beispiel #16
0
static int __devinit spi_pci_probe(struct pci_dev *pdev,
	const struct pci_device_id *ent)
{
	struct dw_spi_pci *dwpci;
	struct dw_spi *dws;
	int pci_bar = 0;
	int ret;

	printk(KERN_INFO "DW: found PCI SPI controller(ID: %04x:%04x)\n",
		pdev->vendor, pdev->device);

	ret = pci_enable_device(pdev);
	if (ret)
		return ret;

	dwpci = kzalloc(sizeof(struct dw_spi_pci), GFP_KERNEL);
	if (!dwpci) {
		ret = -ENOMEM;
		goto err_disable;
	}

	dwpci->pdev = pdev;
	dws = &dwpci->dws;

	/* Get basic io resource and map it */
	dws->paddr = pci_resource_start(pdev, pci_bar);
	dws->iolen = pci_resource_len(pdev, pci_bar);

	ret = pci_request_region(pdev, pci_bar, dev_name(&pdev->dev));
	if (ret)
		goto err_kfree;

	dws->regs = ioremap_nocache((unsigned long)dws->paddr,
				pci_resource_len(pdev, pci_bar));
	if (!dws->regs) {
		ret = -ENOMEM;
		goto err_release_reg;
	}

	dws->parent_dev = &pdev->dev;
	dws->bus_num = ent->driver_data;
	dws->num_cs = 4;
	dws->irq = pdev->irq;

	/*
	 * Specific handling for Intel MID paltforms, like dma setup,
	 * clock rate, FIFO depth.
	 */
	ret = dw_spi_mid_init(dws, ent->driver_data);
	if (ret)
		goto err_unmap;

	ret = dw_spi_add_host(dws);
	if (ret)
		goto err_unmap;

	/* PCI hook and SPI hook use the same drv data */
	pci_set_drvdata(pdev, dwpci);

	pm_suspend_ignore_children(&pdev->dev, true);
	pm_runtime_put_noidle(&pdev->dev);
	pm_runtime_allow(&pdev->dev);

	return 0;

err_unmap:
	iounmap(dws->regs);
err_release_reg:
	pci_release_region(pdev, pci_bar);
err_kfree:
	kfree(dwpci);
err_disable:
	pci_disable_device(pdev);
	return ret;
}
Beispiel #17
0
static int sdhci_sprd_probe(struct platform_device *pdev)
{
	struct sdhci_host *host;
	struct sdhci_sprd_host *sprd_host;
	struct clk *clk;
	int ret = 0;

	host = sdhci_pltfm_init(pdev, &sdhci_sprd_pdata, sizeof(*sprd_host));
	if (IS_ERR(host))
		return PTR_ERR(host);

	host->dma_mask = DMA_BIT_MASK(64);
	pdev->dev.dma_mask = &host->dma_mask;
	host->mmc_host_ops.request = sdhci_sprd_request;

	host->mmc->caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED |
		MMC_CAP_ERASE | MMC_CAP_CMD23;
	ret = mmc_of_parse(host->mmc);
	if (ret)
		goto pltfm_free;

	sprd_host = TO_SPRD_HOST(host);

	clk = devm_clk_get(&pdev->dev, "sdio");
	if (IS_ERR(clk)) {
		ret = PTR_ERR(clk);
		goto pltfm_free;
	}
	sprd_host->clk_sdio = clk;
	sprd_host->base_rate = clk_get_rate(sprd_host->clk_sdio);
	if (!sprd_host->base_rate)
		sprd_host->base_rate = SDHCI_SPRD_CLK_DEF_RATE;

	clk = devm_clk_get(&pdev->dev, "enable");
	if (IS_ERR(clk)) {
		ret = PTR_ERR(clk);
		goto pltfm_free;
	}
	sprd_host->clk_enable = clk;

	ret = clk_prepare_enable(sprd_host->clk_sdio);
	if (ret)
		goto pltfm_free;

	clk_prepare_enable(sprd_host->clk_enable);
	if (ret)
		goto clk_disable;

	sdhci_sprd_init_config(host);
	host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
	sprd_host->version = ((host->version & SDHCI_VENDOR_VER_MASK) >>
			       SDHCI_VENDOR_VER_SHIFT);

	pm_runtime_get_noresume(&pdev->dev);
	pm_runtime_set_active(&pdev->dev);
	pm_runtime_enable(&pdev->dev);
	pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
	pm_runtime_use_autosuspend(&pdev->dev);
	pm_suspend_ignore_children(&pdev->dev, 1);

	sdhci_enable_v4_mode(host);

	ret = sdhci_setup_host(host);
	if (ret)
		goto pm_runtime_disable;

	sprd_host->flags = host->flags;

	ret = __sdhci_add_host(host);
	if (ret)
		goto err_cleanup_host;

	pm_runtime_mark_last_busy(&pdev->dev);
	pm_runtime_put_autosuspend(&pdev->dev);

	return 0;

err_cleanup_host:
	sdhci_cleanup_host(host);

pm_runtime_disable:
	pm_runtime_disable(&pdev->dev);
	pm_runtime_set_suspended(&pdev->dev);

	clk_disable_unprepare(sprd_host->clk_enable);

clk_disable:
	clk_disable_unprepare(sprd_host->clk_sdio);

pltfm_free:
	sdhci_pltfm_free(pdev);
	return ret;
}
static int __devinit sdhci_pxav3_probe(struct platform_device *pdev)
{
	struct sdhci_pltfm_host *pltfm_host;
	struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;
	struct device *dev = &pdev->dev;
	struct sdhci_host *host = NULL;
	struct sdhci_pxa *pxa = NULL;
	const struct of_device_id *match;

	int ret;
	struct clk *clk;

	int qos_class = PM_QOS_CPUIDLE_BLOCK;

	pxa = kzalloc(sizeof(struct sdhci_pxa), GFP_KERNEL);
	if (!pxa)
		return -ENOMEM;

	host = sdhci_pltfm_init(pdev, NULL);
	if (IS_ERR(host)) {
		kfree(pxa);
		return PTR_ERR(host);
	}
	pltfm_host = sdhci_priv(host);
	pltfm_host->priv = pxa;

	clk = clk_get(dev, "PXA-SDHCLK");
	if (IS_ERR(clk)) {
		dev_err(dev, "failed to get io clock\n");
		ret = PTR_ERR(clk);
		goto err_clk_get;
	}
	pltfm_host->clk = clk;
	clk_prepare_enable(clk);

	host->quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
		| SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
		| SDHCI_QUIRK_32BIT_ADMA_SIZE
		| SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN;

	match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
	if (match)
		pdata = pxav3_get_mmc_pdata(dev);

	if (pdata) {
		pdata->qos_idle.name = mmc_hostname(host->mmc);
		pm_qos_add_request(&pdata->qos_idle, qos_class,
			PM_QOS_CPUIDLE_BLOCK_DEFAULT_VALUE);

		/* If slot design supports 8 bit data, indicate this to MMC. */
		if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)
			host->mmc->caps |= MMC_CAP_8_BIT_DATA;

		if (pdata->flags & PXA_FLAG_ENABLE_CLOCK_GATING)
			host->mmc->caps2 |= MMC_CAP2_BUS_AUTO_CLK_GATE;

		if (pdata->flags & PXA_FLAG_DISABLE_PROBE_CDSCAN)
			host->mmc->caps2 |= MMC_CAP2_DISABLE_PROBE_CDSCAN;

		if (pdata->quirks)
			host->quirks |= pdata->quirks;
		if (pdata->host_caps)
			host->mmc->caps |= pdata->host_caps;
		if (pdata->host_caps2)
			host->mmc->caps2 |= pdata->host_caps2;
		if (pdata->pm_caps)
			host->mmc->pm_caps |= pdata->pm_caps;

		if (pdata->cd_type != PXA_SDHCI_CD_HOST)
			host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;

		if (pdata->cd_type == PXA_SDHCI_CD_GPIO &&
			gpio_is_valid(pdata->ext_cd_gpio)) {
			ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio);
			if (ret) {
				dev_err(mmc_dev(host->mmc),
					"failed to allocate card detect gpio\n");
				goto err_cd_req;
			}
		} else if (pdata->cd_type == PXA_SDHCI_CD_PERMANENT) {
			/* on-chip device */
			host->mmc->caps |= MMC_CAP_NONREMOVABLE;
		} else if (pdata->cd_type == PXA_SDHCI_CD_NONE)
			host->mmc->caps |= MMC_CAP_NEEDS_POLL;
	}
	host->quirks2 = SDHCI_QUIRK2_NO_CURRENT_LIMIT
		| SDHCI_QUIRK2_PRESET_VALUE_BROKEN
		| SDHCI_QUIRK2_TIMEOUT_DIVIDE_4;
	host->ops = &pxav3_sdhci_ops;

	if (pdata && pdata->flags & PXA_FLAG_EN_PM_RUNTIME) {
		pm_runtime_set_active(&pdev->dev);
		pm_runtime_enable(&pdev->dev);
		pm_runtime_set_autosuspend_delay(&pdev->dev,
				PXAV3_RPM_DELAY_MS);
		pm_runtime_use_autosuspend(&pdev->dev);
		pm_suspend_ignore_children(&pdev->dev, 1);
	}

#ifdef _MMC_SAFE_ACCESS_
	mmc_is_available = 1;
#endif

	ret = sdhci_add_host(host);
	if (ret) {
		dev_err(&pdev->dev, "failed to add host\n");
		if (pdata && pdata->flags & PXA_FLAG_EN_PM_RUNTIME) {
			pm_runtime_forbid(&pdev->dev);
			pm_runtime_get_noresume(&pdev->dev);
		}
		goto err_add_host;
	}

	/* remove the caps that supported by the controller but not available
	 * for certain platforms.
	 */
	if (pdata && pdata->host_caps_disable)
		host->mmc->caps &= ~(pdata->host_caps_disable);

	platform_set_drvdata(pdev, host);

	if (pdata && pdata->flags & PXA_FLAG_WAKEUP_HOST) {
		device_init_wakeup(&pdev->dev, 1);
		host->mmc->pm_flags |= MMC_PM_WAKE_SDIO_IRQ;
	}
	else
		device_init_wakeup(&pdev->dev, 0);

#ifdef CONFIG_SD8XXX_RFKILL
	if (pdata && pdata->pmmc)
		*pdata->pmmc = host->mmc;
#endif

	return 0;

err_add_host:
	clk_disable_unprepare(clk);
	clk_put(clk);
	if (pdata)
		pm_qos_remove_request(&pdata->qos_idle);
err_cd_req:
	mmc_gpio_free_cd(host->mmc);
err_clk_get:
	sdhci_pltfm_free(pdev);
	kfree(pxa);
	return ret;
}
static int __devinit if_usb_probe(struct usb_interface *intf,
					const struct usb_device_id *id)
{
	struct usb_host_interface *data_desc;
	struct usb_link_device *usb_ld =
			(struct usb_link_device *)id->driver_info;
	struct link_device *ld = &usb_ld->ld;
	struct usb_interface *data_intf;
	struct usb_device *usbdev = interface_to_usbdev(intf);
	struct device *dev, *ehci_dev, *root_hub;
	struct if_usb_devdata *pipe;
	struct urb *urb;
	int i;
	int j;
	int dev_id;
	int err;

	/* To detect usb device order probed */
	dev_id = intf->cur_altsetting->desc.bInterfaceNumber;

	if (dev_id >= IF_USB_DEVNUM_MAX) {
		dev_err(&intf->dev, "Device id %d cannot support\n",
								dev_id);
		return -EINVAL;
	}

	if (!usb_ld) {
		dev_err(&intf->dev,
		"if_usb device doesn't be allocated\n");
		err = ENOMEM;
		goto out;
	}

	mif_info("probe dev_id=%d usb_device_id(0x%p), usb_ld (0x%p)\n",
				dev_id, id, usb_ld);

	usb_ld->usbdev = usbdev;
	usb_get_dev(usbdev);

	for (i = 0; i < IF_USB_DEVNUM_MAX; i++) {
		data_intf = usb_ifnum_to_if(usbdev, i);

		/* remap endpoint of RAW to no.1 for LTE modem */
		if (i == 0)
			pipe = &usb_ld->devdata[1];
		else if (i == 1)
			pipe = &usb_ld->devdata[0];
		else
			pipe = &usb_ld->devdata[i];

		pipe->disconnected = 0;
		pipe->data_intf = data_intf;
		data_desc = data_intf->cur_altsetting;

		/* Endpoints */
		if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
			pipe->rx_pipe = usb_rcvbulkpipe(usbdev,
				data_desc->endpoint[0].desc.bEndpointAddress);
			pipe->tx_pipe = usb_sndbulkpipe(usbdev,
				data_desc->endpoint[1].desc.bEndpointAddress);
			pipe->rx_buf_size = 1024*4;
		} else {
			pipe->rx_pipe = usb_rcvbulkpipe(usbdev,
				data_desc->endpoint[1].desc.bEndpointAddress);
			pipe->tx_pipe = usb_sndbulkpipe(usbdev,
				data_desc->endpoint[0].desc.bEndpointAddress);
			pipe->rx_buf_size = 1024*4;
		}

		if (i == 0) {
			dev_info(&usbdev->dev, "USB IF USB device found\n");
		} else {
			err = usb_driver_claim_interface(&if_usb_driver,
					data_intf, usb_ld);
			if (err < 0) {
				mif_err("failed to cliam usb interface\n");
				goto out;
			}
		}

		usb_set_intfdata(data_intf, usb_ld);
		usb_ld->dev_count++;
		pm_suspend_ignore_children(&data_intf->dev, true);

		for (j = 0; j < URB_COUNT; j++) {
			urb = usb_alloc_urb(0, GFP_KERNEL);
			if (!urb) {
				mif_err("alloc urb fail\n");
				err = -ENOMEM;
				goto out2;
			}

			urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
			urb->transfer_buffer = usb_alloc_coherent(usbdev,
				pipe->rx_buf_size, GFP_KERNEL,
				&urb->transfer_dma);
			if (!urb->transfer_buffer) {
				mif_err(
				"Failed to allocate transfer buffer\n");
				usb_free_urb(urb);
				err = -ENOMEM;
				goto out2;
			}

			usb_fill_bulk_urb(urb, usbdev, pipe->rx_pipe,
				urb->transfer_buffer, pipe->rx_buf_size,
				usb_rx_complete, pipe);
			usb_anchor_urb(urb, &pipe->urbs);
		}
	}

	/* temporary call reset_resume */
	atomic_set(&usb_ld->suspend_count, 1);
	if_usb_reset_resume(data_intf);
	atomic_set(&usb_ld->suspend_count, 0);

	SET_HOST_ACTIVE(usb_ld->pdata, 1);
	usb_ld->host_wake_timeout_flag = 0;

	if (gpio_get_value(usb_ld->pdata->gpio_phone_active)) {
		struct link_pm_data *pm_data = usb_ld->link_pm_data;
		int delay = pm_data->autosuspend_delay_ms ?:
				DEFAULT_AUTOSUSPEND_DELAY_MS;
		pm_runtime_set_autosuspend_delay(&usbdev->dev, delay);
		dev = &usbdev->dev;
		if (dev->parent) {
			dev_dbg(&usbdev->dev, "if_usb Runtime PM Start!!\n");
			usb_enable_autosuspend(usb_ld->usbdev);
			/* s5p-ehci runtime pm allow - usb phy suspend mode */
			root_hub = &usbdev->bus->root_hub->dev;
			ehci_dev = root_hub->parent;
			mif_debug("ehci device = %s, %s\n",
					dev_driver_string(ehci_dev),
					dev_name(ehci_dev));
			pm_runtime_allow(ehci_dev);

			if (!pm_data->autosuspend)
				pm_runtime_forbid(dev);

			if (has_hub(usb_ld))
				link_pm_preactive(pm_data);

			pm_data->root_hub = root_hub;
		}

		usb_ld->flow_suspend = 0;
		/* Queue work if skbs were pending before a disconnect/probe */
		if (ld->sk_fmt_tx_q.qlen || ld->sk_raw_tx_q.qlen)
			queue_delayed_work(ld->tx_wq, &ld->tx_delayed_work, 0);

		usb_ld->if_usb_connected = 1;
		/*USB3503*/
		mif_debug("hub active complete\n");

		usb_change_modem_state(usb_ld, STATE_ONLINE);
	} else {
static mali_error gpu_device_runtime_init(struct kbase_device *kbdev)
{
	pm_suspend_ignore_children(kbdev->osdev.dev, true);
	return MALI_ERROR_NONE;
}
Beispiel #21
0
static int sdhci_pxav3_probe(struct platform_device *pdev)
{
	struct sdhci_pltfm_host *pltfm_host;
	struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;
	struct device *dev = &pdev->dev;
	struct device_node *np = pdev->dev.of_node;
	struct sdhci_host *host = NULL;
	struct sdhci_pxa *pxa = NULL;
	const struct of_device_id *match;
	int ret;

	host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata, sizeof(*pxa));
	if (IS_ERR(host))
		return PTR_ERR(host);

	pltfm_host = sdhci_priv(host);
	pxa = sdhci_pltfm_priv(pltfm_host);

	pxa->clk_io = devm_clk_get(dev, "io");
	if (IS_ERR(pxa->clk_io))
		pxa->clk_io = devm_clk_get(dev, NULL);
	if (IS_ERR(pxa->clk_io)) {
		dev_err(dev, "failed to get io clock\n");
		ret = PTR_ERR(pxa->clk_io);
		goto err_clk_get;
	}
	pltfm_host->clk = pxa->clk_io;
	clk_prepare_enable(pxa->clk_io);

	pxa->clk_core = devm_clk_get(dev, "core");
	if (!IS_ERR(pxa->clk_core))
		clk_prepare_enable(pxa->clk_core);

	/* enable 1/8V DDR capable */
	host->mmc->caps |= MMC_CAP_1_8V_DDR;

	if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) {
		ret = armada_38x_quirks(pdev, host);
		if (ret < 0)
			goto err_mbus_win;
		ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info());
		if (ret < 0)
			goto err_mbus_win;
	}

	match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
	if (match) {
		ret = mmc_of_parse(host->mmc);
		if (ret)
			goto err_of_parse;
		sdhci_get_of_property(pdev);
		pdata = pxav3_get_mmc_pdata(dev);
		pdev->dev.platform_data = pdata;
	} else if (pdata) {
		/* on-chip device */
		if (pdata->flags & PXA_FLAG_CARD_PERMANENT)
			host->mmc->caps |= MMC_CAP_NONREMOVABLE;

		/* If slot design supports 8 bit data, indicate this to MMC. */
		if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)
			host->mmc->caps |= MMC_CAP_8_BIT_DATA;

		if (pdata->quirks)
			host->quirks |= pdata->quirks;
		if (pdata->quirks2)
			host->quirks2 |= pdata->quirks2;
		if (pdata->host_caps)
			host->mmc->caps |= pdata->host_caps;
		if (pdata->host_caps2)
			host->mmc->caps2 |= pdata->host_caps2;
		if (pdata->pm_caps)
			host->mmc->pm_caps |= pdata->pm_caps;

		if (gpio_is_valid(pdata->ext_cd_gpio)) {
			ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio,
						  0);
			if (ret) {
				dev_err(mmc_dev(host->mmc),
					"failed to allocate card detect gpio\n");
				goto err_cd_req;
			}
		}
	}

	pm_runtime_get_noresume(&pdev->dev);
	pm_runtime_set_active(&pdev->dev);
	pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS);
	pm_runtime_use_autosuspend(&pdev->dev);
	pm_runtime_enable(&pdev->dev);
	pm_suspend_ignore_children(&pdev->dev, 1);

	ret = sdhci_add_host(host);
	if (ret) {
		dev_err(&pdev->dev, "failed to add host\n");
		goto err_add_host;
	}

	platform_set_drvdata(pdev, host);

	if (host->mmc->pm_caps & MMC_PM_WAKE_SDIO_IRQ)
		device_init_wakeup(&pdev->dev, 1);

	pm_runtime_put_autosuspend(&pdev->dev);

	return 0;

err_add_host:
	pm_runtime_disable(&pdev->dev);
	pm_runtime_put_noidle(&pdev->dev);
err_of_parse:
err_cd_req:
err_mbus_win:
	clk_disable_unprepare(pxa->clk_io);
	clk_disable_unprepare(pxa->clk_core);
err_clk_get:
	sdhci_pltfm_free(pdev);
	return ret;
}
Beispiel #22
0
static void mmc_host_suspend_ignore_children(struct device *dev, bool enable)
{
	pm_suspend_ignore_children(dev, enable);
}
static int __devinit sdhci_sprd_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct sdhci_host *host;
	struct resource *res;
	int ret, irq;
#ifdef CONFIG_MMC_CARD_HOTPLUG
	int sd_detect_gpio;
	int *sd_detect;
	int detect_irq;
#endif
	struct sprd_host_data *host_data;
	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(dev, "no irq specified\n");
		return irq;
	}
	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(dev, "no memory specified\n");
		return -ENOENT;
	}

	host = sdhci_alloc_host(dev, sizeof(struct sprd_host_data));
	if (IS_ERR(host)) {
		dev_err(dev, "sdhci_alloc_host() failed\n");
		return PTR_ERR(host);
	}
	host_data = sdhci_priv(host);
	host_data->clk_enable = 1;
	platform_set_drvdata(pdev, host);
	host->vmmc = NULL;
	host->ioaddr = (void __iomem *)res->start;
	pr_debug("sdio: host->ioaddr:0x%x\n", (unsigned int)host->ioaddr);
	if (0 == pdev->id){
		host->hw_name = "Spread SDIO host0";
	}else if(1 == pdev->id){
		host->hw_name = "Spread SDIO host1";
	}
	else if(2 == pdev->id){
		host->hw_name = "Spread SDIO host2";
	}
	else if(3 == pdev->id){
		host->hw_name = "Spread EMMC host0";
		host->mmc->caps |= MMC_CAP_8_BIT_DATA /*| MMC_CAP_1_8V_DDR*/;
	}
	host->ops = &sdhci_sprd_ops;
	/*
	 *   SC8810G don't have timeout value and cann't find card
	 *insert, write protection...
	 *   too sad
	 */
	host->quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |\
		SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |\
		SDHCI_QUIRK_BROKEN_CARD_DETECTION|\
		SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
	host->irq = irq;
#ifdef CONFIG_MMC_CARD_HOTPLUG
	gpio_detect = 777;
	sd_detect = dev_get_platdata(dev);
	if(sd_detect && (*sd_detect > 0)){
		sd_detect_gpio = *sd_detect;
		pr_info("%s, sd_detect_gpio:%d\n", __func__, sd_detect_gpio);

		if (0 == pdev->id){
			ret = gpio_request(sd_detect_gpio, "sdio0_detect");
		}else{
			ret = gpio_request(sd_detect_gpio, "sdio1_detect");
		}
		gpio_export( sd_detect_gpio, 1);

		if (ret) {
			dev_err(dev, "cannot request gpio\n");
			return -1;
		}

		ret = gpio_direction_input(sd_detect_gpio);
		if (ret) {
			dev_err(dev, "gpio can not change to input\n");
			return -1;
		}

		detect_irq = gpio_to_irq(sd_detect_gpio);
		if (detect_irq < 0){
			dev_err(dev, "cannot alloc detect irq\n");
			return -1;
		}
                gpio_detect = sd_detect_gpio;
		host_data->detect_irq = detect_irq;
	}else{
		printk("%s, sd_detect_gpio == 0 \n", __func__ );
	}
#endif
	if (sd_detection_cmd_dev == NULL)
	{
		sd_detection_cmd_dev = device_create(sec_class, NULL, 0, NULL, "sdcard");

		if (IS_ERR(sd_detection_cmd_dev))
			pr_err("Fail to create sysfs dev\n");

		if (device_create_file(sd_detection_cmd_dev,&dev_attr_status) < 0)
			pr_err("Fail to create sysfs file\n");
	}

	host->clk = NULL;
	sdhci_module_init(host);

	host->mmc->caps |= MMC_CAP_HW_RESET;
	host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY;
	host->mmc->pm_caps |= (MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ);
#ifdef CONFIG_MACH_KYLEW
	if(pdev->id == 1){
		host->mmc->pm_caps |= MMC_CAP_NONREMOVABLE;
		pm_runtime_disable(&(pdev)->dev); /* temprarily disable runtime case because of error arising when turn on*/
	} else if(pdev->id == 0) {
		host->mmc->pm_flags |= MMC_PM_KEEP_POWER;
		pm_runtime_disable(&(pdev)->dev);
	}
#elif defined (CONFIG_ARCH_SC7710)
	if(pdev->id == 1){
		host->mmc->pm_caps |= MMC_CAP_NONREMOVABLE;
//		pm_runtime_disable(&(pdev)->dev);
	} else if(pdev->id == 2) {
		host->mmc->pm_flags |= MMC_PM_KEEP_POWER;
//		pm_runtime_disable(&(pdev)->dev);
	}
#elif defined (CONFIG_MACH_SP7702)
	if(pdev->id == 1){
		host->mmc->pm_flags |= MMC_PM_KEEP_POWER;
		pm_runtime_disable(&(pdev)->dev);
	}
#else
	if(pdev->id == 1){
		host->mmc->pm_caps |= MMC_CAP_NONREMOVABLE;
	}
        switch(pdev->id) {
             case 1://eMMC
                host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY ;//| MMC_PM_KEEP_POWER;
                host->mmc->caps |= MMC_CAP_NONREMOVABLE  | MMC_CAP_1_8V_DDR;
                break;
             case 0://SD
                 host->mmc->pm_flags |= MMC_PM_IGNORE_PM_NOTIFY;
                break;
        default:
                break;
        }

#endif
	ret = sdhci_add_host(host);
	if (ret) {
		dev_err(dev, "sdhci_add_host() failed\n");
		goto err_add_host;
	}
#if defined(CONFIG_MACH_KYLEW) || defined(CONFIG_MACH_SP7702)|| defined(CONFIG_MACH_MINT)
	sdhci_sprd_fix_controller_1p8v(host);
#endif
#ifdef CONFIG_MMC_BUS_SCAN
	if (pdev->id == 1)
		sdhci_host_g = host;
#endif

#ifdef CONFIG_PM_RUNTIME
            switch(pdev->id) {
            case 1:
            case 0:
                pm_suspend_ignore_children(&pdev->dev, true);
                pm_runtime_set_active(&pdev->dev);
                pm_runtime_set_autosuspend_delay(&pdev->dev, 500);
                pm_runtime_use_autosuspend(&pdev->dev);
                pm_runtime_enable(&pdev->dev);
            default:
                break;
            }
#endif

	return 0;

err_add_host:
#ifdef CONFIG_PM_RUNTIME
	pm_runtime_disable(&(pdev)->dev);
	pm_runtime_set_suspended(&(pdev)->dev);
#endif
	if (host_data->clk_enable) {
		clk_disable(host->clk);
		host_data->clk_enable = 0;
	}
	sdhci_free_host(host);
	return ret;
}
static int sdhci_pxav3_probe(struct platform_device *pdev)
{
	struct sdhci_pltfm_host *pltfm_host;
	struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;
	struct device *dev = &pdev->dev;
	struct sdhci_host *host = NULL;
	struct sdhci_pxa *pxa = NULL;
	const struct of_device_id *match;

	int ret;
	struct clk *clk;

	pxa = kzalloc(sizeof(struct sdhci_pxa), GFP_KERNEL);
	if (!pxa)
		return -ENOMEM;

	host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata);
	if (IS_ERR(host)) {
		kfree(pxa);
		return PTR_ERR(host);
	}
	pltfm_host = sdhci_priv(host);
	pltfm_host->priv = pxa;

	clk = clk_get(dev, NULL);
	if (IS_ERR(clk)) {
		dev_err(dev, "failed to get io clock\n");
		ret = PTR_ERR(clk);
		goto err_clk_get;
	}
	pltfm_host->clk = clk;
	clk_prepare_enable(clk);

	/* enable 1/8V DDR capable */
	host->mmc->caps |= MMC_CAP_1_8V_DDR;

	match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
	if (match) {
		mmc_of_parse(host->mmc);
		sdhci_get_of_property(pdev);
		pdata = pxav3_get_mmc_pdata(dev);
	} else if (pdata) {
		/* on-chip device */
		if (pdata->flags & PXA_FLAG_CARD_PERMANENT)
			host->mmc->caps |= MMC_CAP_NONREMOVABLE;

		/* If slot design supports 8 bit data, indicate this to MMC. */
		if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)
			host->mmc->caps |= MMC_CAP_8_BIT_DATA;

		if (pdata->quirks)
			host->quirks |= pdata->quirks;
		if (pdata->quirks2)
			host->quirks2 |= pdata->quirks2;
		if (pdata->host_caps)
			host->mmc->caps |= pdata->host_caps;
		if (pdata->host_caps2)
			host->mmc->caps2 |= pdata->host_caps2;
		if (pdata->pm_caps)
			host->mmc->pm_caps |= pdata->pm_caps;

		if (gpio_is_valid(pdata->ext_cd_gpio)) {
			ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio);
			if (ret) {
				dev_err(mmc_dev(host->mmc),
					"failed to allocate card detect gpio\n");
				goto err_cd_req;
			}
		}
	}

	pm_runtime_set_active(&pdev->dev);
	pm_runtime_enable(&pdev->dev);
	pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS);
	pm_runtime_use_autosuspend(&pdev->dev);
	pm_suspend_ignore_children(&pdev->dev, 1);
	pm_runtime_get_noresume(&pdev->dev);

	ret = sdhci_add_host(host);
	if (ret) {
		dev_err(&pdev->dev, "failed to add host\n");
		pm_runtime_forbid(&pdev->dev);
		pm_runtime_disable(&pdev->dev);
		goto err_add_host;
	}

	platform_set_drvdata(pdev, host);

	if (host->mmc->pm_caps & MMC_PM_KEEP_POWER) {
		device_init_wakeup(&pdev->dev, 1);
		host->mmc->pm_flags |= MMC_PM_WAKE_SDIO_IRQ;
	} else {
		device_init_wakeup(&pdev->dev, 0);
	}

	pm_runtime_put_autosuspend(&pdev->dev);

	return 0;

err_add_host:
	clk_disable_unprepare(clk);
	clk_put(clk);
err_cd_req:
err_clk_get:
	sdhci_pltfm_free(pdev);
	kfree(pxa);
	return ret;
}
static int sdhci_acpi_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	acpi_handle handle = ACPI_HANDLE(dev);
	struct acpi_device *device;
	struct sdhci_acpi_host *c;
	struct sdhci_host *host;
	struct resource *iomem;
	resource_size_t len;
	const char *hid;
	const char *uid;
	int err;

	if (acpi_bus_get_device(handle, &device))
		return -ENODEV;

	if (acpi_bus_get_status(device) || !device->status.present)
		return -ENODEV;

	hid = acpi_device_hid(device);
	uid = device->pnp.unique_id;

	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!iomem)
		return -ENOMEM;

	len = resource_size(iomem);
	if (len < 0x100)
		dev_err(dev, "Invalid iomem size!\n");

	if (!devm_request_mem_region(dev, iomem->start, len, dev_name(dev)))
		return -ENOMEM;

	host = sdhci_alloc_host(dev, sizeof(struct sdhci_acpi_host));
	if (IS_ERR(host))
		return PTR_ERR(host);

	c = sdhci_priv(host);
	c->host = host;
	c->slot = sdhci_acpi_get_slot(hid, uid);
	c->pdev = pdev;
	c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM);

	platform_set_drvdata(pdev, c);

	host->hw_name	= "ACPI";
	host->ops	= &sdhci_acpi_ops_dflt;
	host->irq	= platform_get_irq(pdev, 0);

	host->ioaddr = devm_ioremap_nocache(dev, iomem->start,
					    resource_size(iomem));
	if (host->ioaddr == NULL) {
		err = -ENOMEM;
		goto err_free;
	}

	if (c->slot) {
		if (c->slot->probe_slot) {
			err = c->slot->probe_slot(pdev, hid, uid);
			if (err)
				goto err_free;
		}
		if (c->slot->chip) {
			host->ops            = c->slot->chip->ops;
			host->quirks        |= c->slot->chip->quirks;
			host->quirks2       |= c->slot->chip->quirks2;
			host->mmc->caps     |= c->slot->chip->caps;
			host->mmc->caps2    |= c->slot->chip->caps2;
			host->mmc->pm_caps  |= c->slot->chip->pm_caps;
		}
		host->quirks        |= c->slot->quirks;
		host->quirks2       |= c->slot->quirks2;
		host->mmc->caps     |= c->slot->caps;
		host->mmc->caps2    |= c->slot->caps2;
		host->mmc->pm_caps  |= c->slot->pm_caps;
	}

	host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;

	if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
		bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL);

		if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) {
			dev_warn(dev, "failed to setup card detect gpio\n");
			c->use_runtime_pm = false;
		}
	}

	err = sdhci_add_host(host);
	if (err)
		goto err_free;

	if (c->use_runtime_pm) {
		pm_runtime_set_active(dev);
		pm_suspend_ignore_children(dev, 1);
		pm_runtime_set_autosuspend_delay(dev, 50);
		pm_runtime_use_autosuspend(dev);
		pm_runtime_enable(dev);
	}

	return 0;

err_free:
	sdhci_free_host(c->host);
	return err;
}
Beispiel #26
0
static int sdhci_s3c_probe(struct platform_device *pdev)
{
	struct s3c_sdhci_platdata *pdata;
	struct sdhci_s3c_drv_data *drv_data;
	struct device *dev = &pdev->dev;
	struct sdhci_host *host;
	struct sdhci_s3c *sc;
	struct resource *res;
	int ret, irq, ptr, clks;

	if (!pdev->dev.platform_data && !pdev->dev.of_node) {
		dev_err(dev, "no device data specified\n");
		return -ENOENT;
	}

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(dev, "no irq specified\n");
		return irq;
	}

	host = sdhci_alloc_host(dev, sizeof(struct sdhci_s3c));
	if (IS_ERR(host)) {
		dev_err(dev, "sdhci_alloc_host() failed\n");
		return PTR_ERR(host);
	}
	sc = sdhci_priv(host);

	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata) {
		ret = -ENOMEM;
		goto err_pdata_io_clk;
	}

	if (pdev->dev.of_node) {
		ret = sdhci_s3c_parse_dt(&pdev->dev, host, pdata);
		if (ret)
			goto err_pdata_io_clk;
	} else {
		memcpy(pdata, pdev->dev.platform_data, sizeof(*pdata));
		sc->ext_cd_gpio = -1; /* invalid gpio number */
	}

	drv_data = sdhci_s3c_get_driver_data(pdev);

	sc->host = host;
	sc->pdev = pdev;
	sc->pdata = pdata;

	platform_set_drvdata(pdev, host);

	sc->clk_io = devm_clk_get(dev, "hsmmc");
	if (IS_ERR(sc->clk_io)) {
		dev_err(dev, "failed to get io clock\n");
		ret = PTR_ERR(sc->clk_io);
		goto err_pdata_io_clk;
	}

	/* enable the local io clock and keep it running for the moment. */
	clk_prepare_enable(sc->clk_io);

	for (clks = 0, ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
		struct clk *clk;
		char name[14];

		snprintf(name, 14, "mmc_busclk.%d", ptr);
		clk = devm_clk_get(dev, name);
		if (IS_ERR(clk))
			continue;

		clks++;
		sc->clk_bus[ptr] = clk;

		/*
		 * save current clock index to know which clock bus
		 * is used later in overriding functions.
		 */
		sc->cur_clk = ptr;

		dev_info(dev, "clock source %d: %s (%ld Hz)\n",
			 ptr, name, clk_get_rate(clk));
	}

	if (clks == 0) {
		dev_err(dev, "failed to find any bus clocks\n");
		ret = -ENOENT;
		goto err_no_busclks;
	}

#ifndef CONFIG_PM_RUNTIME
	clk_prepare_enable(sc->clk_bus[sc->cur_clk]);
#endif

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	host->ioaddr = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(host->ioaddr)) {
		ret = PTR_ERR(host->ioaddr);
		goto err_req_regs;
	}

	/* Ensure we have minimal gpio selected CMD/CLK/Detect */
	if (pdata->cfg_gpio)
		pdata->cfg_gpio(pdev, pdata->max_width);

	host->hw_name = "samsung-hsmmc";
	host->ops = &sdhci_s3c_ops;
	host->quirks = 0;
	host->irq = irq;

	/* Setup quirks for the controller */
	host->quirks |= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC;
	host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT;
	if (drv_data)
		host->quirks |= drv_data->sdhci_quirks;

#ifndef CONFIG_MMC_SDHCI_S3C_DMA

	/* we currently see overruns on errors, so disable the SDMA
	 * support as well. */
	host->quirks |= SDHCI_QUIRK_BROKEN_DMA;

#endif /* CONFIG_MMC_SDHCI_S3C_DMA */

	/* It seems we do not get an DATA transfer complete on non-busy
	 * transfers, not sure if this is a problem with this specific
	 * SDHCI block, or a missing configuration that needs to be set. */
	host->quirks |= SDHCI_QUIRK_NO_BUSY_IRQ;

	/* This host supports the Auto CMD12 */
	host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;

	/* Samsung SoCs need BROKEN_ADMA_ZEROLEN_DESC */
	host->quirks |= SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC;

	if (pdata->cd_type == S3C_SDHCI_CD_NONE ||
	    pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
		host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;

	if (pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
		host->mmc->caps = MMC_CAP_NONREMOVABLE;

	switch (pdata->max_width) {
	case 8:
		host->mmc->caps |= MMC_CAP_8_BIT_DATA;
	case 4:
		host->mmc->caps |= MMC_CAP_4_BIT_DATA;
		break;
	}

	if (pdata->pm_caps)
		host->mmc->pm_caps |= pdata->pm_caps;

	host->quirks |= (SDHCI_QUIRK_32BIT_DMA_ADDR |
			 SDHCI_QUIRK_32BIT_DMA_SIZE);

	/* HSMMC on Samsung SoCs uses SDCLK as timeout clock */
	host->quirks |= SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK;

	/*
	 * If controller does not have internal clock divider,
	 * we can use overriding functions instead of default.
	 */
	if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) {
		pax_open_kernel();
		*(void **)&sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
		*(void **)&sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
		*(void **)&sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
		pax_close_kernel();
	}

	/* It supports additional host capabilities if needed */
	if (pdata->host_caps)
		host->mmc->caps |= pdata->host_caps;

	if (pdata->host_caps2)
		host->mmc->caps2 |= pdata->host_caps2;

	pm_runtime_enable(&pdev->dev);
	pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
	pm_runtime_use_autosuspend(&pdev->dev);
	pm_suspend_ignore_children(&pdev->dev, 1);

	ret = sdhci_add_host(host);
	if (ret) {
		dev_err(dev, "sdhci_add_host() failed\n");
		pm_runtime_forbid(&pdev->dev);
		pm_runtime_get_noresume(&pdev->dev);
		goto err_req_regs;
	}

	/* The following two methods of card detection might call
	   sdhci_s3c_notify_change() immediately, so they can be called
	   only after sdhci_add_host(). Setup errors are ignored. */
	if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_init)
		pdata->ext_cd_init(&sdhci_s3c_notify_change);
	if (pdata->cd_type == S3C_SDHCI_CD_GPIO &&
	    gpio_is_valid(pdata->ext_cd_gpio))
		sdhci_s3c_setup_card_detect_gpio(sc);

#ifdef CONFIG_PM_RUNTIME
	if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL)
		clk_disable_unprepare(sc->clk_io);
#endif
	return 0;

 err_req_regs:
#ifndef CONFIG_PM_RUNTIME
	clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
#endif

 err_no_busclks:
	clk_disable_unprepare(sc->clk_io);

 err_pdata_io_clk:
	sdhci_free_host(host);

	return ret;
}
static mali_error pm_callback_runtime_init(struct kbase_device *kbdev)
{
	pm_suspend_ignore_children(kbdev->dev, true);
	pm_runtime_enable(kbdev->dev);
	return MALI_ERROR_NONE;
}
Beispiel #28
0
static int smdhsic_probe(struct usb_interface *intf,
			 const struct usb_device_id *id)
{
	int devid = -1;
	int err;
	const struct usb_cdc_union_desc *union_header = NULL;
	const struct usb_host_interface *data_desc;
	struct usb_interface *data_intf;
	struct usb_device *usbdev;
	struct str_intf_priv *intfpriv = NULL;
	struct usb_driver *driver;
	struct str_smdipc *smdipc;
	struct str_hsic *hsic;
	u8 *data;
	int len;

	pr_info("%s: Enter\n", __func__);

	usbdev = interface_to_usbdev(intf);
	g_usbdev.usbdev = usbdev;
	driver = get_usb_driver(intf);
	data = intf->altsetting->extra;
	len = intf->altsetting->extralen;

	if (!len) {
		if (intf->cur_altsetting->endpoint->extralen &&
		    intf->cur_altsetting->endpoint->extra) {
			pr_debug(
			       "%s: Seeking extra descriptors on endpoint\n",
			       __func__);
			len = intf->cur_altsetting->endpoint->extralen;
			data = intf->cur_altsetting->endpoint->extra;
		} else {
			pr_err(
			       "%s: Zero length descriptor reference\n",
			       __func__);
			return -EINVAL;
		}
	}

	if (!len) {
		pr_err("%s: Zero length descriptor reference\n",
		       __func__);
		return -EINVAL;
	}

	while (len > 0) {
		if (data[1] == USB_DT_CS_INTERFACE) {
			switch (data[2]) {
			case USB_CDC_UNION_TYPE:
				if (union_header)
					break;
				union_header =
				    (struct usb_cdc_union_desc *)data;
				break;
			default:
				break;
			}
		}
		data += data[0];
		len -= data[0];
	}

	if (!union_header) {
		pr_err("%s:USB CDC is not union type\n", __func__);
		return -EINVAL;
	}

	data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
	if (!data_intf) {
		pr_err("%s:data_inferface is NULL\n", __func__);
		return -ENODEV;
	}

	data_desc = data_intf->altsetting;
	if (!data_desc) {
		pr_err("%s:data_desc is NULL\n", __func__);
		return -ENODEV;
	}

	switch (id->driver_info) {
	case XMM6260_PSI_DOWN:
		pr_warn("%s:XMM6260_PSI_DOWN\n", __func__);
		intfpriv = smd_create_dev(data_intf, usbdev,
					data_desc, DOWN_DEV_ID);
		break;
	case XMM6260_BIN_DOWN:
		intfpriv = smd_create_dev(data_intf, usbdev,
					data_desc, DOWN_DEV_ID);
		break;
	case XMM6260_CHANNEL:
		devid = intf->altsetting->desc.bInterfaceNumber / 2;
		intfpriv = smd_create_dev(data_intf, usbdev, data_desc, devid);
		break;
	default:
		pr_err("%s: Undefined driver_info: %lu\n",
			__func__, id->driver_info);
		break;
	}

	if (!intfpriv) {
		pr_err("%s:smd_create_dev() failed\n", __func__);
		return -EINVAL;
	}

	err = usb_driver_claim_interface(driver, data_intf, intfpriv);
	if (err < 0) {
		pr_err("%s:usb_driver_claim() failed\n", __func__);
		return err;
	}

	/* to start runtime pm with AP initiated L2 */
	if (usb_runtime_pm_ap_initiated_L2) {
		usbdev->autosuspend_delay = msecs_to_jiffies(200);
		if (devid == FMT_DEV_ID) {
			smdipc = (struct str_smdipc *)intfpriv->data;
			hsic = &smdipc->hsic;
			g_usbdev.hsic = hsic;
			g_usbdev.hsic->dpm_suspending = false;
			g_usbdev.suspended = 0;
			INIT_DELAYED_WORK(&hsic->pm_runtime_work,
					smdhsic_pm_runtime_start);
			schedule_delayed_work(&hsic->pm_runtime_work,
					msecs_to_jiffies(10000));
		}
	} else
		usbdev->autosuspend_delay = 0;

	intfpriv->devid |= ID_BIND;
	usb_set_intfdata(intf, intfpriv);
	pm_suspend_ignore_children(&usbdev->dev, true);

	return 0;
}
/*
 ****************************************************************************
 * - Device operation such as;
 *   probe, init/exit, remove
 ****************************************************************************
 */
static int __devinit lm3561_probe(struct i2c_client *client,
	  const struct i2c_device_id *id)
{
	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
	struct lm3561_platform_data *pdata = client->dev.platform_data;
	struct lm3561_drv_data *data;
	int result;

	dev_dbg(&client->dev, "%s\n", __func__);

	if (!pdata) {
		dev_err(&client->dev,
			"%s(): failed during init",
				__func__);
		return -EINVAL;
	}

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) {
		dev_err(&client->dev,
			"%s(): failed during i2c_check_functionality",
			__func__);
		return -EIO;
	}

	data = kzalloc(sizeof(*data), GFP_KERNEL);
	if (!data) {
		dev_err(&client->dev, "%s(): failed during kzalloc", __func__);
		return -ENOMEM;
	}

	dev_set_drvdata(&client->dev, data);
	data->client = client;
	data->led_nums = 1;
	data->torch_current_shift = 0;
	data->flash_current_shift = 0;
	if (pdata->current_limit >= 1500000) {
		data->reg_flash_duration_limit =
			LM3561_FLASH_DURATION_CL_1500MA;
	} else if (pdata->current_limit >= 1000000) {
		data->reg_flash_duration_limit =
			LM3561_FLASH_DURATION_CL_1000MA;
	} else {
		/* current_limit > 1500000uA || current_limit < 1000000uA */
		dev_err(&data->client->dev,
			"%s(): current_limit(%luuA) is invalid\n",
			__func__, pdata->current_limit);
		result = -EINVAL;
		goto err_init;
	}
	mutex_init(&data->lock);
	pm_runtime_enable(&client->dev);
	pm_suspend_ignore_children(&client->dev, true);
	result = pm_runtime_get_sync(&client->dev);
	if (result < 0)
		goto err_setup;
	result = lm3561_chip_init(data, pdata);
	if (result) {
		dev_err(&client->dev, "%s:chip init error\n", __func__);
		goto err_chip_init;
	}
	result = lm3561_create_sysfs_interfaces(&client->dev);
	if (result) {
		dev_err(&data->client->dev,
			"%s(): create sysfs failed",
				__func__);
		goto err_chip_init;
	}
	pm_runtime_set_autosuspend_delay(&client->dev, autosuspend_delay_ms);
	pm_runtime_use_autosuspend(&client->dev);
	pm_runtime_mark_last_busy(&data->client->dev);
	pm_runtime_put_autosuspend(&data->client->dev);
	dev_info(&data->client->dev, "%s: loaded\n", __func__);
	return 0;

err_chip_init:
	pm_runtime_suspend(&client->dev);
err_setup:
	pm_runtime_disable(&client->dev);
	if (pdata->platform_init)
		pdata->platform_init(&client->dev, 0);
err_init:
	dev_set_drvdata(&client->dev, NULL);
	kfree(data);
	dev_err(&client->dev,
		"%s: failed with code %d.\n", __func__, result);

	return result;
}
Beispiel #30
0
int usbsvn_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	const struct usb_cdc_union_desc *union_header = NULL;
	const struct usb_host_interface *data_desc;
	static struct usbsvn *svn;
	struct usb_interface *data_intf;
	struct usb_device *usbdev = interface_to_usbdev(intf);
	u8 *data = intf->altsetting->extra;
	int len = intf->altsetting->extralen;
	int dev_id;
	int err;

	if (!share_svn) {
		printk(KERN_ERR "%s: netdev not registed\n", __func__);
		return -EINVAL;
	}
	svn = share_svn;

	if (!len) {
		if (intf->cur_altsetting->endpoint->extralen &&
				intf->cur_altsetting->endpoint->extra) {
			dev_dbg(&intf->dev,
				"Seeking extra descriptors on endpoint\n");
			len = intf->cur_altsetting->endpoint->extralen;
			data = intf->cur_altsetting->endpoint->extra;
		} else {
			dev_err(&intf->dev,
				"Zero length descriptor references\n");
			return -EINVAL;
		}
	}

	while (len > 0) {
		/* bDescriptorType */
		if (data[1] == USB_DT_CS_INTERFACE) {
			/* bDescriptorSubType */
			switch (data[2]) {
			case USB_CDC_UNION_TYPE:
				if (union_header)
					break;
				union_header =
					(struct usb_cdc_union_desc *)data;
				break;
			default:
				break;
			}
		}

		data += data[0];
		len -= data[0];
	}

	if (!union_header) {
		dev_err(&intf->dev, "USB CDC isn't union type\n");
		return -EINVAL;
	}

	data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
	if (!data_intf)
		return -ENODEV;

	data_desc = data_intf->altsetting;

	/* To detect usb device order probed */
	dev_id = intf->altsetting->desc.bInterfaceNumber / 2;

	if (dev_id >= USBSVN_DEVNUM_MAX) {
		dev_err(&intf->dev, "Device id %d cannot support\n", dev_id);
		return -EINVAL;
	}

	printk(KERN_ERR "%s: probe dev_id=%d\n", __func__, dev_id);
	if (dev_id > 0)
		goto skip_netdev;

	svn->usbdev = usbdev;
	svn->driver_info = (unsigned long)id->driver_info;

	/* FIXME: Does need this indeed? */
	usbdev->autosuspend_delay = msecs_to_jiffies(200);      /* 200ms */

	if (!svn->driver_info) {
		schedule_delayed_work(&svn->pm_runtime_work,
			msecs_to_jiffies(10000));
	}
	svn->usbsvn_connected = 1;
	svn->flow_suspend = 0;

skip_netdev:
	if (!svn->driver_info) {
		svn = share_svn;
		if (!svn) {
			dev_err(&intf->dev,
			"svnet device doesn't be allocated\n");
			err = ENOMEM;
			goto out;
		}
	}

	usb_get_dev(usbdev);
	svn->devdata[dev_id].data_intf = data_intf;

	/* Endpoints */
	if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
		svn->devdata[dev_id].rx_pipe = usb_rcvbulkpipe(usbdev,
				data_desc->endpoint[0].desc.bEndpointAddress);
		svn->devdata[dev_id].tx_pipe = usb_sndbulkpipe(usbdev,
				data_desc->endpoint[1].desc.bEndpointAddress);
	} else {
		svn->devdata[dev_id].rx_pipe = usb_rcvbulkpipe(usbdev,
				data_desc->endpoint[1].desc.bEndpointAddress);
		svn->devdata[dev_id].tx_pipe = usb_sndbulkpipe(usbdev,
				data_desc->endpoint[0].desc.bEndpointAddress);
	}

	err = usb_driver_claim_interface(&usbsvn_driver, data_intf, svn);
	if (err < 0)
		goto out;

	usb_set_intfdata(intf, svn);
	svn->dev_count++;

	if (dev_id == 0)
		dev_info(&usbdev->dev, "USB CDC SVNET device found\n");

	pm_suspend_ignore_children(&intf->dev, true);
	svn->devdata[dev_id].disconnected = 0;

	return 0;

out:
	usb_set_intfdata(intf, NULL);
	return err;
}