C++ pm_runtime_put_sync函数代码示例

static void unblank_framebuffer(int releaseref)
{
	struct device *fbdev = NULL;
	struct fb_info *fb_info;
	struct s3c_fb_win *win;
	struct s3c_fb *sfb;

	fbdev = get_fb_dev();
	if (!fbdev)
		return;

	fb_info = get_fb_info(fbdev);
	if (!fb_info)
		return;

	/*
	 * Release the reference we took at the beginning of the TUI session
	 */
	win = fb_info->par;
	sfb = win->parent;

	pr_info("%s call s3c_fb_activate_vsync\n", __func__);
	s3c_fb_activate_vsync(sfb);

	/*
	 * Unblank the framebuffer
	 */
	console_lock();
	fb_info->flags |= FBINFO_MISC_USEREVENT;
	fb_blank(fb_info, FB_BLANK_UNBLANK);
	fb_info->flags &= ~FBINFO_MISC_USEREVENT;
	console_unlock();

	if (releaseref)
		pm_runtime_put_sync(sfb->dev);

}

static int jpeg_remove(struct platform_device *pdev)
{
	struct jpeg_dev *dev = platform_get_drvdata(pdev);

	del_timer_sync(&dev->watchdog_timer);
	flush_workqueue(dev->watchdog_workqueue);
	destroy_workqueue(dev->watchdog_workqueue);

	v4l2_m2m_release(dev->m2m_dev_enc);
	video_unregister_device(dev->vfd_enc);

	v4l2_m2m_release(dev->m2m_dev_dec);
	video_unregister_device(dev->vfd_dec);

	v4l2_device_unregister(&dev->v4l2_dev);

	dev->vb2->cleanup(dev->alloc_ctx);

	free_irq(dev->irq_no, pdev);
	mutex_destroy(&dev->lock);
	iounmap(dev->reg_base);

	clk_put(dev->clk);
#ifdef CONFIG_PM_RUNTIME
#if defined (CONFIG_CPU_EXYNOS5250)
#ifdef CONFIG_BUSFREQ_OPP
	/* lock bus frequency */
	dev_unlock(dev->bus_dev, &pdev->dev);
#endif
#else
	pm_runtime_put_sync(&pdev->dev);
	pm_runtime_disable(&pdev->dev);
#endif
#endif
	kfree(dev);
	return 0;
}

void omap_mcbsp_free(unsigned int id)
{
	struct omap_mcbsp *mcbsp;
	void *reg_cache;

	if (!omap_mcbsp_check_valid_id(id)) {
		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
		return;
	}
	mcbsp = id_to_mcbsp_ptr(id);

	if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free)
		mcbsp->pdata->ops->free(id);

	/* Disable wakeup behavior */
	if (mcbsp->pdata->has_wakeup)
		MCBSP_WRITE(mcbsp, WAKEUPEN, 0);

	pm_runtime_put_sync(mcbsp->dev);

	if (mcbsp->rx_irq)
		free_irq(mcbsp->rx_irq, (void *)mcbsp);
	free_irq(mcbsp->tx_irq, (void *)mcbsp);

	reg_cache = mcbsp->reg_cache;

	spin_lock(&mcbsp->lock);
	if (mcbsp->free)
		dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id);
	else
		mcbsp->free = true;
	mcbsp->reg_cache = NULL;
	spin_unlock(&mcbsp->lock);

	if (reg_cache)
		kfree(reg_cache);
}

static int __exit omap_rtc_remove(struct platform_device *pdev)
{
	struct omap_rtc *rtc = platform_get_drvdata(pdev);
	u8 reg;

	if (pm_power_off == omap_rtc_power_off &&
			omap_rtc_power_off_rtc == rtc) {
		pm_power_off = NULL;
		omap_rtc_power_off_rtc = NULL;
	}

	device_init_wakeup(&pdev->dev, 0);

	if (!IS_ERR(rtc->clk))
		clk_disable_unprepare(rtc->clk);

	rtc->type->unlock(rtc);
	/* leave rtc running, but disable irqs */
	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);

	if (rtc->has_ext_clk) {
		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);
		reg &= ~OMAP_RTC_OSC_SEL_32KCLK_SRC;
		rtc_write(rtc, OMAP_RTC_OSC_REG, reg);
	}

	rtc->type->lock(rtc);

	/* Disable the clock/module */
	pm_runtime_put_sync(&pdev->dev);
	pm_runtime_disable(&pdev->dev);

	/* Remove ext_wakeup pinconf */
	pinctrl_unregister(rtc->pctldev);

	return 0;
}

static ssize_t hsic_remoteWakeup_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t size)
{
	int retval;
	int org_req;

	if (size > HSIC_ENABLE_SIZE) {
		dev_dbg(dev, "Invalid, size = %d\n", size);
		return -EINVAL;
	}

	if (sscanf(buf, "%d", &org_req) != 1) {
		dev_dbg(dev, "Invalid, value\n");
		return -EINVAL;
	}

	mutex_lock(&hsic.hsic_mutex);
	hsic.remoteWakeup_enable = org_req;

	if ((hsic.modem_dev != NULL) &&
		(hsic.rh_dev != NULL)) {
		if (hsic.remoteWakeup_enable) {
			dev_dbg(dev, "Modem dev remote wakeup enabled\n");
			device_set_wakeup_capable(&hsic.modem_dev->dev, 1);
			device_set_wakeup_capable(&hsic.rh_dev->dev, 1);
		} else {
			dev_dbg(dev, "Modem dev remote wakeup disabled\n");
			device_set_wakeup_capable(&hsic.modem_dev->dev, 0);
			device_set_wakeup_capable(&hsic.rh_dev->dev, 0);
		}
		pm_runtime_get_sync(&hsic.modem_dev->dev);
		pm_runtime_put_sync(&hsic.modem_dev->dev);
	}

	mutex_unlock(&hsic.hsic_mutex);
	return size;
}

static void hdlcd_drm_unbind(struct device *dev)
{
	struct drm_device *drm = dev_get_drvdata(dev);
	struct hdlcd_drm_private *hdlcd = drm->dev_private;

	drm_dev_unregister(drm);
	if (hdlcd->fbdev) {
		drm_fbdev_cma_fini(hdlcd->fbdev);
		hdlcd->fbdev = NULL;
	}
	drm_kms_helper_poll_fini(drm);
	component_unbind_all(dev, drm);
	of_node_put(hdlcd->crtc.port);
	hdlcd->crtc.port = NULL;
	pm_runtime_get_sync(drm->dev);
	drm_irq_uninstall(drm);
	pm_runtime_put_sync(drm->dev);
	pm_runtime_disable(drm->dev);
	of_reserved_mem_device_release(drm->dev);
	drm_mode_config_cleanup(drm);
	drm_dev_put(drm);
	drm->dev_private = NULL;
	dev_set_drvdata(dev, NULL);
}

static int fimc_capture_open(struct file *file)
{
	struct fimc_dev *fimc = video_drvdata(file);
	int ret = v4l2_fh_open(file);

	if (ret)
		return ret;

	dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);

	/* Return if the corresponding video mem2mem node is already opened. */
	if (fimc_m2m_active(fimc))
		return -EBUSY;

	set_bit(ST_CAPT_BUSY, &fimc->state);
	pm_runtime_get_sync(&fimc->pdev->dev);

	if (++fimc->vid_cap.refcnt == 1) {
		ret = fimc_pipeline_initialize(fimc,
			       &fimc->vid_cap.vfd->entity, true);
		if (ret < 0) {
			dev_err(&fimc->pdev->dev,
				"Video pipeline initialization failed\n");
			pm_runtime_put_sync(&fimc->pdev->dev);
			fimc->vid_cap.refcnt--;
			v4l2_fh_release(file);
			clear_bit(ST_CAPT_BUSY, &fimc->state);
			return ret;
		}
		ret = fimc_capture_ctrls_create(fimc);

		if (!ret && !fimc->vid_cap.user_subdev_api)
			ret = fimc_capture_set_default_format(fimc);
	}
	return ret;
}

static void s5p_dp_disable(struct s5p_dp_device *dp)
{
	struct s5p_dp_platdata *pdata = dp->dev->platform_data;

	mutex_lock(&dp->lock);

	if (!dp->enabled)
		goto out;

	dp->enabled = 0;

	//s5p_dp_reset(dp);
	//s5p_dp_set_pll_power_down(dp, 1);
	//s5p_dp_set_analog_power_down(dp, POWER_ALL, 1);

	if (pdata && pdata->phy_exit)
		pdata->phy_exit();

	clk_disable(dp->clock);
	pm_runtime_put_sync(dp->dev);

out:
	mutex_unlock(&dp->lock);
}

static void s3c_fb_enable(struct s3c_fb *sfb, int enable)
{
	u32 vidcon0 = readl(sfb->regs + VIDCON0);

	if (enable && !sfb->output_on)
		pm_runtime_get_sync(sfb->dev);

	if (enable) {
		vidcon0 |= VIDCON0_ENVID | VIDCON0_ENVID_F;
	} else {

		if (vidcon0 & VIDCON0_ENVID) {
			vidcon0 |= VIDCON0_ENVID;
			vidcon0 &= ~VIDCON0_ENVID_F;
		}
	}

	writel(vidcon0, sfb->regs + VIDCON0);

	if (!enable && sfb->output_on)
		pm_runtime_put_sync(sfb->dev);

	sfb->output_on = enable;
}

void omap_mcbsp_free(unsigned int id)
{
	struct omap_mcbsp *mcbsp;
	void *reg_cache;

	if (!omap_mcbsp_check_valid_id(id)) {
		printk(KERN_ERR "%s: Invalid id (%d)\n", __func__, id + 1);
		return;
	}
	mcbsp = id_to_mcbsp_ptr(id);

	if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free)
		mcbsp->pdata->ops->free(id);

	/* Do procedure specific to omap34xx arch, if applicable */
	omap34xx_mcbsp_free(mcbsp);

	pm_runtime_put_sync(mcbsp->dev);

	if (mcbsp->rx_irq)
		free_irq(mcbsp->rx_irq, (void *)mcbsp);
	free_irq(mcbsp->tx_irq, (void *)mcbsp);

	reg_cache = mcbsp->reg_cache;

	spin_lock(&mcbsp->lock);
	if (mcbsp->free)
		dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id);
	else
		mcbsp->free = true;
	mcbsp->reg_cache = NULL;
	spin_unlock(&mcbsp->lock);

	if (reg_cache)
		kfree(reg_cache);
}

static int exynos_xhci_runtime_suspend(struct device *dev)
{
	struct platform_device	*pdev = to_platform_device(dev);
	struct exynos_xhci_hcd	*exynos_xhci;
	struct usb_hcd		*hcd;
	struct xhci_hcd		*xhci;
	int			retval = 0;

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

	exynos_xhci = dev_get_drvdata(dev);
	if (!exynos_xhci)
		return -EINVAL;

	hcd = exynos_xhci->hcd;
	if (!hcd)
		return -EINVAL;

	xhci = hcd_to_xhci(hcd);

	if (hcd->state != HC_STATE_SUSPENDED ||
			xhci->shared_hcd->state != HC_STATE_SUSPENDED) {
		dev_dbg(dev, "%s: HC state is not suspended!\n", __func__);
		return -EAGAIN;
	}

	retval = xhci_suspend(xhci, 0);
	if (retval < 0)
		dev_err(dev, "%s: cannot stop xHC\n", __func__);

	pm_runtime_put_sync(exynos_xhci->dev->parent);

	exynos_drd_put(pdev);

	return retval;
}

int abe_mixer_enable_mono(struct omap_abe *abe, int id, int enable)
{
	int mixer;

	switch (id) {
	case MIX_DL1_MONO:
		mixer = MIXDL1;
		break;
	case MIX_DL2_MONO:
		mixer = MIXDL2;
		break;
	case MIX_AUDUL_MONO:
		mixer = MIXAUDUL;
		break;
	default:
		return -EINVAL;
	}

	abe_dsp_pm_get(abe);
	omap_aess_mono_mixer(abe->aess, mixer, enable);
	pm_runtime_put_sync(abe->dev);

	return 0;
}

static int p3_disable_clk(struct p3_dev *p3_device)
{
	int ret_val = 0;
	//unsigned short clock = 0;
	struct spi_device *spidev = NULL;
	struct s3c64xx_spi_driver_data *sdd = NULL;

	if (!p3_device->enabled_clk) {
		P3_ERR_MSG("%s - clock was not enabled!\n", __func__);
		return ret_val;
	}

	spin_lock_irq(&p3_device->ese_spi_lock);
	spidev = spi_dev_get(p3_device->spi);
	spin_unlock_irq(&p3_device->ese_spi_lock);
	if (spidev == NULL) {
		P3_ERR_MSG("%s - Failed to get spi dev!\n", __func__);
		return -1;
	}

	sdd = spi_master_get_devdata(spidev->master);
	if (!sdd){
		P3_ERR_MSG("%s - Failed to get spi dev.\n", __func__);
		return -EFAULT;
	}

	p3_device->enabled_clk = false;
	pm_runtime_put_sync(&sdd->pdev->dev); /* Disable clock */

	spi_dev_put(spidev);
#ifdef FEATURE_ESE_WAKELOCK
	if (wake_lock_active(&p3_device->ese_lock))
		wake_unlock(&p3_device->ese_lock);
#endif
	return ret_val;
}

static void decon_disable(struct exynos_drm_crtc *crtc)
{
	struct decon_context *ctx = crtc->ctx;
	int i;

	if (test_bit(BIT_SUSPENDED, &ctx->flags))
		return;

	/*
	 * We need to make sure that all windows are disabled before we
	 * suspend that connector. Otherwise we might try to scan from
	 * a destroyed buffer later.
	 */
	for (i = ctx->first_win; i < WINDOWS_NR; i++)
		decon_disable_plane(crtc, &ctx->planes[i]);

	decon_swreset(ctx);

	clear_bit(BIT_CLKS_ENABLED, &ctx->flags);

	pm_runtime_put_sync(ctx->dev);

	set_bit(BIT_SUSPENDED, &ctx->flags);
}

struct msm_gpu *adreno_load_gpu(struct drm_device *dev)
{
	struct msm_drm_private *priv = dev->dev_private;
	struct platform_device *pdev = priv->gpu_pdev;
	struct msm_gpu *gpu = platform_get_drvdata(priv->gpu_pdev);
	int ret;

	if (!gpu) {
		dev_err(dev->dev, "no adreno device\n");
		return NULL;
	}

	pm_runtime_get_sync(&pdev->dev);
	mutex_lock(&dev->struct_mutex);
	ret = msm_gpu_hw_init(gpu);
	mutex_unlock(&dev->struct_mutex);
	pm_runtime_put_sync(&pdev->dev);
	if (ret) {
		dev_err(dev->dev, "gpu hw init failed: %d\n", ret);
		return NULL;
	}

	return gpu;
}