Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e30d4bcf authored by Inki Dae's avatar Inki Dae
Browse files

drm/exynos: added pm support. 



this patch adds pm feature for fimd driver.

Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
parent e1533c08

drivers/gpu/drm/exynos/exynos_drm_fimd.c

+59 −0
Original line number Diff line number Diff line
@@ -181,6 +181,9 @@ static void fimd_commit(struct device *dev) 
	struct fb_videomode *timing = ctx->timing;

	u32 val;



	if (ctx->suspended)

		return;



	DRM_DEBUG_KMS("%s\n", __FILE__);



	/* setup polarity values from machine code. */
@@ -414,6 +417,9 @@ static void fimd_win_commit(struct device *dev, int zpos) 


	DRM_DEBUG_KMS("%s\n", __FILE__);



	if (ctx->suspended)

		return;



	if (win == DEFAULT_ZPOS)

		win = ctx->default_win;
@@ -885,6 +891,51 @@ static int __devexit fimd_remove(struct platform_device *pdev) 
	return 0;

}



#ifdef CONFIG_PM_SLEEP

static int fimd_suspend(struct device *dev)

{

	struct fimd_context *ctx = get_fimd_context(dev);

	int ret;



	if (pm_runtime_suspended(dev))

		return 0;



	ret = pm_runtime_suspend(dev);

	if (ret < 0)

		return ret;



	ctx->suspended = true;

	return 0;

}



static int fimd_resume(struct device *dev)

{

	struct fimd_context *ctx = get_fimd_context(dev);

	int ret;



	ret = pm_runtime_resume(dev);

	if (ret < 0) {

		DRM_ERROR("failed to resume runtime pm.\n");

		return ret;

	}



	pm_runtime_disable(dev);



	ret = pm_runtime_set_active(dev);

	if (ret < 0) {

		DRM_ERROR("failed to active runtime pm.\n");

		pm_runtime_enable(dev);

		pm_runtime_suspend(dev);

		return ret;

	}



	pm_runtime_enable(dev);



	ctx->suspended = false;

	return 0;

}

#endif



#ifdef CONFIG_PM_RUNTIME

static int fimd_runtime_suspend(struct device *dev)

{
@@ -917,11 +968,19 @@ static int fimd_runtime_resume(struct device *dev) 
	}



	ctx->suspended = false;



	/* if vblank was enabled status, enable it again. */

	if (test_and_clear_bit(0, &ctx->irq_flags))

		fimd_enable_vblank(dev);



	fimd_apply(dev);



	return 0;

}

#endif



static const struct dev_pm_ops fimd_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(fimd_suspend, fimd_resume)

	SET_RUNTIME_PM_OPS(fimd_runtime_suspend, fimd_runtime_resume, NULL)

};