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Commit ab27af85 authored by Joonyoung Shim's avatar Joonyoung Shim Committed by Inki Dae
Browse files

drm/exynos: add PM functions for hdmi and mixer 



This patch supports the PM for hdmi and mixer. Turn off hdmi and mixer
when suspended, and when resume, will turn on them by hdmi hotplug
detection if hdmi is attached.

Signed-off-by: default avatarJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent cf8fc4f1

drivers/gpu/drm/exynos/exynos_hdmi.c

+32 −0
Original line number Diff line number Diff line
@@ -2367,11 +2367,43 @@ static int __devexit hdmi_remove(struct platform_device *pdev) 
	return 0;

}



#ifdef CONFIG_PM_SLEEP

static int hdmi_suspend(struct device *dev)

{

	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);

	struct hdmi_context *hdata = ctx->ctx;



	disable_irq(hdata->internal_irq);

	disable_irq(hdata->external_irq);



	hdata->hpd = false;

	if (ctx->drm_dev)

		drm_helper_hpd_irq_event(ctx->drm_dev);



	hdmi_poweroff(hdata);



	return 0;

}



static int hdmi_resume(struct device *dev)

{

	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);

	struct hdmi_context *hdata = ctx->ctx;



	enable_irq(hdata->external_irq);

	enable_irq(hdata->internal_irq);

	return 0;

}

#endif



static SIMPLE_DEV_PM_OPS(hdmi_pm_ops, hdmi_suspend, hdmi_resume);



struct platform_driver hdmi_driver = {

	.probe		= hdmi_probe,

	.remove		= __devexit_p(hdmi_remove),

	.driver		= {

		.name	= "exynos4-hdmi",

		.owner	= THIS_MODULE,

		.pm	= &hdmi_pm_ops,

	},

};

drivers/gpu/drm/exynos/exynos_mixer.c

+15 −0
Original line number Diff line number Diff line
@@ -1104,10 +1104,25 @@ static int mixer_remove(struct platform_device *pdev) 
	return 0;

}



#ifdef CONFIG_PM_SLEEP

static int mixer_suspend(struct device *dev)

{

	struct exynos_drm_hdmi_context *drm_hdmi_ctx = get_mixer_context(dev);

	struct mixer_context *ctx = drm_hdmi_ctx->ctx;



	mixer_poweroff(ctx);



	return 0;

}

#endif



static SIMPLE_DEV_PM_OPS(mixer_pm_ops, mixer_suspend, NULL);



struct platform_driver mixer_driver = {

	.driver = {

		.name = "s5p-mixer",

		.owner = THIS_MODULE,

		.pm = &mixer_pm_ops,

	},

	.probe = mixer_probe,

	.remove = __devexit_p(mixer_remove),