C++ pm_runtime_use_autosuspend函数代码示例

static int dw_mci_rockchip_probe(struct platform_device *pdev)
{
	const struct dw_mci_drv_data *drv_data;
	const struct of_device_id *match;
	int ret;

	if (!pdev->dev.of_node)
		return -ENODEV;

	match = of_match_node(dw_mci_rockchip_match, pdev->dev.of_node);
	drv_data = match->data;

	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);

	ret = dw_mci_pltfm_register(pdev, drv_data);
	if (ret) {
		pm_runtime_disable(&pdev->dev);
		pm_runtime_set_suspended(&pdev->dev);
		pm_runtime_put_noidle(&pdev->dev);
		return ret;
	}

	pm_runtime_put_autosuspend(&pdev->dev);

	return 0;
}

/*
***************************************************************
 @Function	  :sunxi_mali_platform_device_register

 @Description :Register mali platform device

 @Input		  :None

 @Return	  :0 or error code
***************************************************************
*/
int sunxi_mali_platform_device_register(void)
{
    int err;
    unsigned long mem_size = 0;
    struct __fb_addr_para fb_addr_para={0};

    sunxi_get_fb_addr_para(&fb_addr_para);

    err = platform_device_add_resources(&mali_gpu_device, mali_gpu_resources, sizeof(mali_gpu_resources) / sizeof(mali_gpu_resources[0]));
    if (0 == err){
        mali_gpu_data.fb_start = fb_addr_para.fb_paddr;
        mali_gpu_data.fb_size = fb_addr_para.fb_size;	
		mem_size = (totalram_pages  * PAGE_SIZE )/1024; /* KB */
	
		if(mem_size > 512*1024)
		{
			mali_gpu_data.shared_mem_size = 1024*1024*1024;
		}
		else
		{
			mali_gpu_data.shared_mem_size = 512*1024*1024;
		}

        err = platform_device_add_data(&mali_gpu_device, &mali_gpu_data, sizeof(mali_gpu_data));
        if(0 == err)
		{
            err = platform_device_register(&mali_gpu_device);
            if (0 == err){
                if(_MALI_OSK_ERR_OK != mali_platform_init())
				{
					return _MALI_OSK_ERR_FAULT;
				}
#ifdef CONFIG_PM_RUNTIME
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
				pm_runtime_set_autosuspend_delay(&(mali_gpu_device.dev), 1000);
				pm_runtime_use_autosuspend(&(mali_gpu_device.dev));
#endif
				pm_runtime_enable(&(mali_gpu_device.dev));
#endif /* CONFIG_PM_RUNTIME */
				/* print mali gpu information */
				printk(KERN_INFO "=========================================================\n");
				printk(KERN_INFO "       Mali GPU Information         \n");
				printk(KERN_INFO "voltage             : %d mV\n", regulator_get_voltage(mali_regulator)/1000);
				printk(KERN_INFO "initial frequency   : %ld MHz\n", clk_get_rate(h_mali_clk)/(1000*1000));
				printk(KERN_INFO "frame buffer address: 0x%lx - 0x%lx\n", mali_gpu_data.fb_start, mali_gpu_data.fb_start + mali_gpu_data.shared_mem_size);
				printk(KERN_INFO "frame buffer size   : %ld MB\n", mali_gpu_data.shared_mem_size/(1024*1024));
				printk(KERN_INFO "=========================================================\n");
                return 0;
            }
        }

        platform_device_unregister(&mali_gpu_device);
    }

#ifdef CONFIG_CPU_BUDGET_THERMAL
	register_budget_cooling_notifier(&mali_throttle_notifier);
#endif /* CONFIG_CPU_BUDGET_THERMAL */
	
    return err;
}

static int __devinit gr2d_probe(struct platform_device *dev)
{
	int err = 0;
	struct nvhost_device_data *pdata = NULL;

	if (dev->dev.of_node) {
		const struct of_device_id *match;

		match = of_match_device(tegra_gr2d_of_match, &dev->dev);
		if (match)
			pdata = (struct nvhost_device_data *)match->data;
	} else
		pdata = (struct nvhost_device_data *)dev->dev.platform_data;

	WARN_ON(!pdata);
	if (!pdata) {
		dev_info(&dev->dev, "no platform data\n");
		return -ENODATA;
	}
	pdata->pdev = dev;
	platform_set_drvdata(dev, pdata);

	err = nvhost_client_device_init(dev);
	if (err)
		return err;

	pm_runtime_use_autosuspend(&dev->dev);
	pm_runtime_set_autosuspend_delay(&dev->dev, 100);
	pm_runtime_enable(&dev->dev);

	return 0;
}

static int __devinit msenc_probe(struct platform_device *dev)
{
	int err = 0;
	struct nvhost_device_data *pdata =
		(struct nvhost_device_data *)dev->dev.platform_data;

	pdata->pdev = dev;
	pdata->init = nvhost_msenc_init;
	pdata->deinit = nvhost_msenc_deinit;
	pdata->finalize_poweron = nvhost_msenc_finalize_poweron;

	platform_set_drvdata(dev, pdata);

	err = nvhost_client_device_get_resources(dev);
	if (err)
		return err;

	err = nvhost_client_device_init(dev);
	if (err)
		return err;

	pm_runtime_use_autosuspend(&dev->dev);
	pm_runtime_set_autosuspend_delay(&dev->dev, 100);
	pm_runtime_enable(&dev->dev);

	return 0;
}

int mali_platform_device_register(void)
{
	int err;

	MALI_DEBUG_PRINT(4, ("mali_platform_device_register() called\n"));

	/* Connect resources to the device */
	err = platform_device_add_resources(&exynos4_device_g3d, mali_gpu_resources, sizeof(mali_gpu_resources) / sizeof(mali_gpu_resources[0]));
	if (0 == err)
	{
		err = platform_device_add_data(&exynos4_device_g3d, &mali_gpu_data, sizeof(mali_gpu_data));
		if (0 == err)
		{
			mali_platform_init(&(exynos4_device_g3d.dev));
#ifdef CONFIG_PM_RUNTIME
			pm_runtime_set_autosuspend_delay(&(exynos4_device_g3d.dev), 50);
			pm_runtime_use_autosuspend(&(exynos4_device_g3d.dev));
			pm_runtime_enable(&(exynos4_device_g3d.dev));
#endif
			return 0;
		}

	}
	return err;
}

/**
 * blk_pm_runtime_init - Block layer runtime PM initialization routine
 * @q: the queue of the device
 * @dev: the device the queue belongs to
 *
 * Description:
 *    Initialize runtime-PM-related fields for @q and start auto suspend for
 *    @dev. Drivers that want to take advantage of request-based runtime PM
 *    should call this function after @dev has been initialized, and its
 *    request queue @q has been allocated, and runtime PM for it can not happen
 *    yet(either due to disabled/forbidden or its usage_count > 0). In most
 *    cases, driver should call this function before any I/O has taken place.
 *
 *    This function takes care of setting up using auto suspend for the device,
 *    the autosuspend delay is set to -1 to make runtime suspend impossible
 *    until an updated value is either set by user or by driver. Drivers do
 *    not need to touch other autosuspend settings.
 *
 *    The block layer runtime PM is request based, so only works for drivers
 *    that use request as their IO unit instead of those directly use bio's.
 */
void blk_pm_runtime_init(struct request_queue *q, struct device *dev)
{
	q->dev = dev;
	q->rpm_status = RPM_ACTIVE;
	pm_runtime_set_autosuspend_delay(q->dev, -1);
	pm_runtime_use_autosuspend(q->dev);
}

/*****************************************************************************
 function name  : mali_platform_device_register
 description    : mali platform device register
 input vars     : void
 output vars    : NA
 return value   : void
 calls          : mali_platform_init

 called         : os

 history        :
  1.data        : 18/10/2012
    modify      : new

*****************************************************************************/
int mali_platform_device_register(void)
{
    int err = -1;

    MALI_DEBUG_PRINT(4, ("mali_platform_device_register() called\n"));
    MALI_DEBUG_PRINT(4, ("Registering Mali-450 MP8 device\n"));

    /* init the mem first of hisi */
    mali_hisi_mem_init();
	mali_gpu_device.num_resources = ARRAY_SIZE(mali_gpu_resources_m450_mp4);
	mali_gpu_device.resource = mali_gpu_resources_m450_mp4;

    /* Register the platform device */
    err = platform_device_register(&mali_gpu_device);
    if (0 == err)
    {
        mali_platform_init();
#ifdef CONFIG_PM_RUNTIME
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
        pm_runtime_set_autosuspend_delay(&(mali_gpu_device.dev), 1000);
        pm_runtime_use_autosuspend(&(mali_gpu_device.dev));
#endif
        pm_runtime_enable(&(mali_gpu_device.dev));
#endif

        return 0;
    }

    return err;
}

int mali_platform_device_register(void)
{
	int err;

	MALI_DEBUG_PRINT(4, ("mali_platform_device_register() called\n"));

	/* Connect resources to the device */
	err = platform_device_add_resources(&exynos4_device_g3d,
						mali_gpu_resources,
						sizeof(mali_gpu_resources) /
						sizeof(mali_gpu_resources[0]));
	if (0 == err) {
		err = platform_device_add_data(&exynos4_device_g3d,
						&mali_gpu_data,
						sizeof(mali_gpu_data));
		if (0 == err) {
			mali_platform_init(&(exynos4_device_g3d.dev));

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
			pm_runtime_set_autosuspend_delay(&(exynos4_device_g3d.dev), 200);
			pm_runtime_use_autosuspend(&(exynos4_device_g3d.dev));
#endif
			pm_runtime_enable(&(exynos4_device_g3d.dev));
			return 0;
		}

	}
	return err;
}

int mali_platform_device_register(void)
{
    int err = -1;

    MALI_DEBUG_PRINT(1, ("%s\n", __FUNCTION__));

    err = platform_device_register(&mali_gpu_device);
            
    if (0 == err) 
    {         
        mali_pmm_init();
        
#ifdef CONFIG_PM_RUNTIME
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
				pm_runtime_set_autosuspend_delay(&(mali_gpu_device.dev), 1000);
				pm_runtime_use_autosuspend(&(mali_gpu_device.dev));
#endif
				pm_runtime_enable(&(mali_gpu_device.dev));
#endif
        
#if defined(__MALI_CORE_SCALING_ENABLE__)
        mali_core_scaling_init(num_pp_cores);
#endif        
        return 0;
    }

    MALI_DEBUG_PRINT(1, ("%s err=%d\n",__FUNCTION__, err));

    platform_device_unregister(&mali_gpu_device);

    return err;
}

void escore_pm_enable(void)
{
	struct escore_priv *escore = &escore_priv;
	int ret = 0;

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

	if (escore->pm_enable) {
		pr_err("%s(): Already Enabled\n", __func__);
		return;
	}

	escore->pm_enable = ES_PM_ON;
	escore->pm_status = ES_PM_ON;
	pm_runtime_set_active(escore->dev);
	pm_runtime_mark_last_busy(escore->dev);
	pm_runtime_set_autosuspend_delay(escore->dev, ES_PM_AUTOSUSPEND_DELAY);
	pm_runtime_use_autosuspend(escore->dev);
	pm_runtime_enable(escore->dev);
	device_init_wakeup(escore->dev, true);
	if (pm_runtime_get_sync(escore->dev) >= 0) {
		ret = pm_runtime_put_sync_autosuspend(escore->dev);
		if (ret < 0) {
			dev_err(escore->dev,
				"%s() escore PM put failed ret = %d\n",
				__func__, ret);
		}
	} else
		dev_err(escore->dev,
			"%s() escore PM get failed ret = %d\n", __func__, ret);
	return;
}

/**
 * tb_domain_add() - Add domain to the system
 * @tb: Domain to add
 *
 * Starts the domain and adds it to the system. Hotplugging devices will
 * work after this has been returned successfully. In order to remove
 * and release the domain after this function has been called, call
 * tb_domain_remove().
 *
 * Return: %0 in case of success and negative errno in case of error
 */
int tb_domain_add(struct tb *tb)
{
	int ret;

	if (WARN_ON(!tb->cm_ops))
		return -EINVAL;

	mutex_lock(&tb->lock);

	tb->ctl = tb_ctl_alloc(tb->nhi, tb_domain_event_cb, tb);
	if (!tb->ctl) {
		ret = -ENOMEM;
		goto err_unlock;
	}

	/*
	 * tb_schedule_hotplug_handler may be called as soon as the config
	 * channel is started. Thats why we have to hold the lock here.
	 */
	tb_ctl_start(tb->ctl);

	if (tb->cm_ops->driver_ready) {
		ret = tb->cm_ops->driver_ready(tb);
		if (ret)
			goto err_ctl_stop;
	}

	ret = device_add(&tb->dev);
	if (ret)
		goto err_ctl_stop;

	/* Start the domain */
	if (tb->cm_ops->start) {
		ret = tb->cm_ops->start(tb);
		if (ret)
			goto err_domain_del;
	}

	/* This starts event processing */
	mutex_unlock(&tb->lock);

	pm_runtime_no_callbacks(&tb->dev);
	pm_runtime_set_active(&tb->dev);
	pm_runtime_enable(&tb->dev);
	pm_runtime_set_autosuspend_delay(&tb->dev, TB_AUTOSUSPEND_DELAY);
	pm_runtime_mark_last_busy(&tb->dev);
	pm_runtime_use_autosuspend(&tb->dev);

	return 0;

err_domain_del:
	device_del(&tb->dev);
err_ctl_stop:
	tb_ctl_stop(tb->ctl);
err_unlock:
	mutex_unlock(&tb->lock);

	return ret;
}

static int omap3_thermal_probe(struct platform_device *pdev)
{
    struct thermal_zone_device *omap3_thermal = NULL;
    struct omap3_thermal_dev *tdev;
    int ret = 0;
    struct resource *stres = platform_get_resource(pdev, IORESOURCE_MEM, 0);

    if (!stres) {
        dev_err(&pdev->dev, "memory resource missing\n");
        return -ENODEV;
    }

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

    tdev->dev = &pdev->dev;

    if (cpu_is_omap3630()) {
        tdev->bgap_soc_mask = BIT(9);
        tdev->bgap_eocz_mask = BIT(8);
        tdev->adc_to_temp = omap3630_adc_to_temp;
    } else if (cpu_is_omap34xx()) {
        tdev->bgap_soc_mask = BIT(8);
        tdev->bgap_eocz_mask = BIT(7);
        tdev->adc_to_temp = omap3530_adc_to_temp;
    } else {
        dev_err(&pdev->dev, "not OMAP3 family\n");
        return -ENODEV;
    }

    tdev->thermal_base = devm_ioremap(&pdev->dev, stres->start,
                                      resource_size(stres));
    if (!tdev->thermal_base) {
        dev_err(&pdev->dev, "ioremap failed\n");
        return -ENOMEM;
    }

    pm_runtime_enable(&pdev->dev);
    pm_runtime_set_autosuspend_delay(&pdev->dev, 2000);
    pm_runtime_use_autosuspend(&pdev->dev);

    omap3_thermal = thermal_zone_device_register("omap3-thermal", 0,
                    tdev, &omap3_thermal_ops, 0, 0, 0, 0);
    if (!omap3_thermal) {
        dev_err(&pdev->dev, "thermal zone device is NULL\n");
        ret = -EINVAL;
        goto put_pm;
    }

    platform_set_drvdata(pdev, omap3_thermal);

    return 0;

put_pm:
    pm_runtime_disable(&pdev->dev);
    return ret;
}

/**
 * amdgpu_driver_load_kms - Main load function for KMS.
 *
 * @dev: drm dev pointer
 * @flags: device flags
 *
 * This is the main load function for KMS (all asics).
 * Returns 0 on success, error on failure.
 */
int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
{
	struct amdgpu_device *adev;
	int r, acpi_status;

	adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
	if (adev == NULL) {
		return -ENOMEM;
	}
	dev->dev_private = (void *)adev;

	if ((amdgpu_runtime_pm != 0) &&
	    amdgpu_has_atpx() &&
	    ((flags & AMD_IS_APU) == 0))
		flags |= AMD_IS_PX;

	/* amdgpu_device_init should report only fatal error
	 * like memory allocation failure or iomapping failure,
	 * or memory manager initialization failure, it must
	 * properly initialize the GPU MC controller and permit
	 * VRAM allocation
	 */
	r = amdgpu_device_init(adev, dev, dev->pdev, flags);
	if (r) {
		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
		goto out;
	}

	/* Call ACPI methods: require modeset init
	 * but failure is not fatal
	 */
	if (!r) {
		acpi_status = amdgpu_acpi_init(adev);
		if (acpi_status)
		dev_dbg(&dev->pdev->dev,
				"Error during ACPI methods call\n");
	}

	amdgpu_amdkfd_load_interface(adev);
	amdgpu_amdkfd_device_probe(adev);
	amdgpu_amdkfd_device_init(adev);

	if (amdgpu_device_is_px(dev)) {
		pm_runtime_use_autosuspend(dev->dev);
		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
		pm_runtime_set_active(dev->dev);
		pm_runtime_allow(dev->dev);
		pm_runtime_mark_last_busy(dev->dev);
		pm_runtime_put_autosuspend(dev->dev);
	}

out:
	if (r)
		amdgpu_driver_unload_kms(dev);


	return r;
}

static int hi3630_pcm_hdmi_probe(struct platform_device *pdev)
{
	int ret = -1;
	struct device *dev = &pdev->dev;
	struct hi3630_hdmi_data *pdata = NULL;

	if (!dev) {
		loge("platform_device has no device\n");
		return -ENOENT;
	}

	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata){
		dev_err(dev, "cannot allocate hi3630 hdmi platform data\n");
		return -ENOMEM;
	}

	pdata->hi3630_asp_irq = dev_get_drvdata(pdev->dev.parent);
	if (!pdata->hi3630_asp_irq) {
		dev_err(dev, "get parent device error\n");
		return -ENOENT;
	}

	pdata->irq = platform_get_irq_byname(pdev, "asp_irq_hdmi");
	if (0 > pdata->irq) {
		dev_err(dev, "cannot get irq\n");
		return -ENOENT;
	}

	pdata->regu.supply = "hdmi-pcm";
	ret = devm_regulator_bulk_get(dev, 1, &(pdata->regu));
	if (0 != ret) {
		dev_err(dev, "couldn't get regulators %d\n", ret);
		return -ENOENT;
	}

	pdata->dev = dev;

#ifdef CONFIG_PM_RUNTIME
	pm_runtime_set_autosuspend_delay(dev, 100); /* 100ms*/
	pm_runtime_use_autosuspend(dev);

	pm_runtime_enable(dev);
#endif

	platform_set_drvdata(pdev, pdata);

	dev_set_name(dev, "hi3630-pcm-hdmi");

	ret = snd_soc_register_platform(dev, &hi3630_pcm_hdmi_platform);
	if (ret) {
		loge("snd_soc_register_platform return %d\n", ret);
		return -ENODEV;
	}

	return ret;
}

void wil_pm_runtime_allow(struct wil6210_priv *wil)
{
	struct device *dev = wil_to_dev(wil);

	pm_runtime_put_noidle(dev);
	pm_runtime_set_autosuspend_delay(dev, WIL6210_AUTOSUSPEND_DELAY_MS);
	pm_runtime_use_autosuspend(dev);
	pm_runtime_allow(dev);
}