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drm/arm/hdlcd: Use drm_mode_config_helper_suspend/resume()

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Replace driver's code with the generic helpers that do the same thing
including the NULL check.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Noralf Trønnes 2017-12-08 20:37:34 +01:00 committed by Liviu Dudau
parent 3fce461827
commit 5c7e5a22c1
2 changed files with 3 additions and 23 deletions
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25
drivers/gpu/drm/arm/hdlcd_drv.c
View File

@ -27,6 +27,7 @@
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_modeset_helper.h>
#include <drm/drm_of.h>
#include "hdlcd_drv.h"
@ -427,35 +428,15 @@ MODULE_DEVICE_TABLE(of, hdlcd_of_match);
static int __maybe_unused hdlcd_pm_suspend(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
struct hdlcd_drm_private *hdlcd = drm ? drm->dev_private : NULL;
if (!hdlcd)
return 0;
drm_kms_helper_poll_disable(drm);
drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 1);
hdlcd->state = drm_atomic_helper_suspend(drm);
if (IS_ERR(hdlcd->state)) {
drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 0);
drm_kms_helper_poll_enable(drm);
return PTR_ERR(hdlcd->state);
}
return 0;
return drm_mode_config_helper_suspend(drm);
}
static int __maybe_unused hdlcd_pm_resume(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
struct hdlcd_drm_private *hdlcd = drm ? drm->dev_private : NULL;
if (!hdlcd)
return 0;
drm_atomic_helper_resume(drm, hdlcd->state);
drm_fbdev_cma_set_suspend_unlocked(hdlcd->fbdev, 0);
drm_kms_helper_poll_enable(drm);
drm_mode_config_helper_resume(drm);
return 0;
}

1
drivers/gpu/drm/arm/hdlcd_drv.h
View File

@ -12,7 +12,6 @@ struct hdlcd_drm_private {
struct drm_fbdev_cma *fbdev;
struct drm_crtc crtc;
struct drm_plane *plane;
struct drm_atomic_state *state;
#ifdef CONFIG_DEBUG_FS
atomic_t buffer_underrun_count;
atomic_t bus_error_count;