diff options
| author |   Paul Cercueil <paul@crapouillou.net> | 2020-11-28 17:16:06 +0000 |
|---|---|---|
| committer | Paul Cercueil <paul@crapouillou.net> | 2020-11-28 20:00:49 +0000 |
| commit | d6bff5b0bddbf294e2db80f2cccdac7be6d0a4d1 (patch) | |
| tree | a4a488ca617933e91c5c03ea08c3bcd32b600ead /drivers/gpu | |
| parent | drm/ttm: Warn on pinning without holding a reference (diff) | |
| download | linux-dev-d6bff5b0bddbf294e2db80f2cccdac7be6d0a4d1.tar.xz linux-dev-d6bff5b0bddbf294e2db80f2cccdac7be6d0a4d1.zip | |
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: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201128171606.132830-1-paul@crapouillou.net
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index 368bfef8b340..286e08b8ace2 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -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, |