Unverified Commit d6bff5b0 authored by Paul Cercueil's avatar Paul Cercueil
Browse files

drm/ingenic: Add basic PM support 



Call drm_mode_config_helper_suspend() and
drm_mode_config_helper_resume() on suspend and resume, respectively.

This makes sure that the display stack is properly disabled when the
hardware is put to sleep.

Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Reviewed-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201128171606.132830-1-paul@crapouillou.net
parent 57fcd550

drivers/gpu/drm/ingenic/ingenic-drm-drv.c

+18 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <linux/of_device.h>

#include <linux/of_reserved_mem.h>

#include <linux/platform_device.h>

#include <linux/pm.h>

#include <linux/regmap.h>



#include <drm/drm_atomic.h>
@@ -1167,6 +1168,22 @@ static int ingenic_drm_remove(struct platform_device *pdev) 
	return 0;

}



static int __maybe_unused ingenic_drm_suspend(struct device *dev)

{

	struct ingenic_drm *priv = dev_get_drvdata(dev);



	return drm_mode_config_helper_suspend(&priv->drm);

}



static int __maybe_unused ingenic_drm_resume(struct device *dev)

{

	struct ingenic_drm *priv = dev_get_drvdata(dev);



	return drm_mode_config_helper_resume(&priv->drm);

}



static SIMPLE_DEV_PM_OPS(ingenic_drm_pm_ops, ingenic_drm_suspend, ingenic_drm_resume);



static const u32 jz4740_formats[] = {

	DRM_FORMAT_XRGB1555,

	DRM_FORMAT_RGB565,
@@ -1246,6 +1263,7 @@ MODULE_DEVICE_TABLE(of, ingenic_drm_of_match); 
static struct platform_driver ingenic_drm_driver = {

	.driver = {

		.name = "ingenic-drm",

		.pm = pm_ptr(&ingenic_drm_pm_ops),

		.of_match_table = of_match_ptr(ingenic_drm_of_match),

	},

	.probe = ingenic_drm_probe,