[PATCH 09/22] drm/mxsfb: Use drm_fb_cma_fbdev_init/fini()

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Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on
the fact that drm_device holds a pointer to the drm_fb_helper structure.
This means that the driver doesn't have to keep track of that.
Also use the drm_fb_helper functions directly.

Cc: Marek Vasut <marex@xxxxxxx>
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
---
 drivers/gpu/drm/mxsfb/mxsfb_drv.c | 21 ++++-----------------
 drivers/gpu/drm/mxsfb/mxsfb_drv.h |  1 -
 2 files changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index 1207ffe36250..d846dbfc22e9 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -223,11 +223,8 @@ static int mxsfb_load(struct drm_device *drm, unsigned long flags)
 
 	drm_kms_helper_poll_init(drm);
 
-	mxsfb->fbdev = drm_fbdev_cma_init(drm, 32,
-					  drm->mode_config.num_connector);
-	if (IS_ERR(mxsfb->fbdev)) {
-		ret = PTR_ERR(mxsfb->fbdev);
-		mxsfb->fbdev = NULL;
+	ret = drm_fb_cma_fbdev_init(drm, 32, 0);
+	if (ret) {
 		dev_err(drm->dev, "Failed to init FB CMA area\n");
 		goto err_cma;
 	}
@@ -250,10 +247,7 @@ static int mxsfb_load(struct drm_device *drm, unsigned long flags)
 
 static void mxsfb_unload(struct drm_device *drm)
 {
-	struct mxsfb_drm_private *mxsfb = drm->dev_private;
-
-	if (mxsfb->fbdev)
-		drm_fbdev_cma_fini(mxsfb->fbdev);
+	drm_fb_cma_fbdev_fini(drm);
 
 	drm_kms_helper_poll_fini(drm);
 	drm_mode_config_cleanup(drm);
@@ -267,13 +261,6 @@ static void mxsfb_unload(struct drm_device *drm)
 	pm_runtime_disable(drm->dev);
 }
 
-static void mxsfb_lastclose(struct drm_device *drm)
-{
-	struct mxsfb_drm_private *mxsfb = drm->dev_private;
-
-	drm_fbdev_cma_restore_mode(mxsfb->fbdev);
-}
-
 static int mxsfb_enable_vblank(struct drm_device *drm, unsigned int crtc)
 {
 	struct mxsfb_drm_private *mxsfb = drm->dev_private;
@@ -329,7 +316,7 @@ static struct drm_driver mxsfb_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET |
 				  DRIVER_PRIME | DRIVER_ATOMIC |
 				  DRIVER_HAVE_IRQ,
-	.lastclose		= mxsfb_lastclose,
+	.lastclose		= drm_fb_helper_lastclose,
 	.irq_handler		= mxsfb_irq_handler,
 	.irq_preinstall		= mxsfb_irq_preinstall,
 	.irq_uninstall		= mxsfb_irq_preinstall,
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.h b/drivers/gpu/drm/mxsfb/mxsfb_drv.h
index 5d0883fc805b..bedd6801edca 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.h
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.h
@@ -37,7 +37,6 @@ struct mxsfb_drm_private {
 	struct drm_simple_display_pipe	pipe;
 	struct drm_connector		connector;
 	struct drm_panel		*panel;
-	struct drm_fbdev_cma		*fbdev;
 };
 
 int mxsfb_setup_crtc(struct drm_device *dev);
-- 
2.14.2

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