From 194b8799d27cd61bbc6da4e3ed333de261c07407 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Mon, 6 Nov 2017 20:18:09 +0100
Subject: [PATCH] drm/arm/mali: Use drm_mode_config_helper_suspend/resume()
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Replace driver's code with the generic helpers that do the same thing.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171106191812.38927-4-noralf@tronnes.org
---
 drivers/gpu/drm/arm/malidp_drv.c | 24 +++---------------------
 drivers/gpu/drm/arm/malidp_drv.h |  1 -
 2 files changed, 3 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index b8944666a18f..75f0bce33941 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -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 "malidp_drv.h"
@@ -749,34 +750,15 @@ static int malidp_platform_remove(struct platform_device *pdev)
 static int __maybe_unused malidp_pm_suspend(struct device *dev)
 {
 	struct drm_device *drm = dev_get_drvdata(dev);
-	struct malidp_drm *malidp = drm->dev_private;
-
-	drm_kms_helper_poll_disable(drm);
-	console_lock();
-	drm_fbdev_cma_set_suspend(malidp->fbdev, 1);
-	console_unlock();
-	malidp->pm_state = drm_atomic_helper_suspend(drm);
-	if (IS_ERR(malidp->pm_state)) {
-		console_lock();
-		drm_fbdev_cma_set_suspend(malidp->fbdev, 0);
-		console_unlock();
-		drm_kms_helper_poll_enable(drm);
-		return PTR_ERR(malidp->pm_state);
-	}
 
-	return 0;
+	return drm_mode_config_helper_suspend(drm);
 }
 
 static int __maybe_unused malidp_pm_resume(struct device *dev)
 {
 	struct drm_device *drm = dev_get_drvdata(dev);
-	struct malidp_drm *malidp = drm->dev_private;
 
-	drm_atomic_helper_resume(drm, malidp->pm_state);
-	console_lock();
-	drm_fbdev_cma_set_suspend(malidp->fbdev, 0);
-	console_unlock();
-	drm_kms_helper_poll_enable(drm);
+	drm_mode_config_helper_resume(drm);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/arm/malidp_drv.h b/drivers/gpu/drm/arm/malidp_drv.h
index 2e2033140efc..70ed6aeccf05 100644
--- a/drivers/gpu/drm/arm/malidp_drv.h
+++ b/drivers/gpu/drm/arm/malidp_drv.h
@@ -24,7 +24,6 @@ struct malidp_drm {
 	struct drm_crtc crtc;
 	wait_queue_head_t wq;
 	atomic_t config_valid;
-	struct drm_atomic_state *pm_state;
 	u32 core_id;
 };
 
-- 
2.30.2