[PATCH v2 4/6] drm/fsl-dcu: 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: Stefan Agner <stefan@xxxxxxxx>
Cc: Alison Wang <alison.wang@xxxxxxxxxxxxx>
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
---
 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 24 ++++++------------------
 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h |  1 -
 2 files changed, 6 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
index 58e9e0601a61..1a9ee657bbac 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -27,6 +27,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_modeset_helper.h>
 
 #include "fsl_dcu_drm_crtc.h"
 #include "fsl_dcu_drm_drv.h"
@@ -188,26 +189,17 @@ static struct drm_driver fsl_dcu_drm_driver = {
 static int fsl_dcu_drm_pm_suspend(struct device *dev)
 {
 	struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev);
+	int ret;
 
 	if (!fsl_dev)
 		return 0;
 
 	disable_irq(fsl_dev->irq);
-	drm_kms_helper_poll_disable(fsl_dev->drm);
 
-	console_lock();
-	drm_fbdev_cma_set_suspend(fsl_dev->fbdev, 1);
-	console_unlock();
-
-	fsl_dev->state = drm_atomic_helper_suspend(fsl_dev->drm);
-	if (IS_ERR(fsl_dev->state)) {
-		console_lock();
-		drm_fbdev_cma_set_suspend(fsl_dev->fbdev, 0);
-		console_unlock();
-
-		drm_kms_helper_poll_enable(fsl_dev->drm);
+	ret = drm_mode_config_helper_suspend(fsl_dev->drm);
+	if (ret) {
 		enable_irq(fsl_dev->irq);
-		return PTR_ERR(fsl_dev->state);
+		return ret;
 	}
 
 	clk_disable_unprepare(fsl_dev->pix_clk);
@@ -233,13 +225,9 @@ static int fsl_dcu_drm_pm_resume(struct device *dev)
 	if (fsl_dev->tcon)
 		fsl_tcon_bypass_enable(fsl_dev->tcon);
 	fsl_dcu_drm_init_planes(fsl_dev->drm);
-	drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state);
 
-	console_lock();
-	drm_fbdev_cma_set_suspend(fsl_dev->fbdev, 0);
-	console_unlock();
+	drm_mode_config_helper_resume(fsl_dev->drm);
 
-	drm_kms_helper_poll_enable(fsl_dev->drm);
 	enable_irq(fsl_dev->irq);
 
 	return 0;
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h
index da9bfd432ca6..93bfb98012d4 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h
@@ -196,7 +196,6 @@ struct fsl_dcu_drm_device {
 	struct drm_encoder encoder;
 	struct fsl_dcu_drm_connector connector;
 	const struct fsl_dcu_soc_data *soc;
-	struct drm_atomic_state *state;
 };
 
 int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev);
-- 
2.14.2

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