Re: [20/39] drm: renesas: shmobile: Replace .dev_private with container_of()

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Hi,

On 2023/6/22 17:21, Geert Uytterhoeven wrote:

Now that drm_device is embedded in shmob_drm_device, we can use
a container_of()-based helper to get the shmob_drm_device pointer from
the drm_device, instead of using the deprecated drm_device.dev_private
field.

While at it, restore reverse Xmas tree ordering of local variable
declarations.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>


Reviewed-by: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>


---
  .../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 20 +++++++++----------
  .../gpu/drm/renesas/shmobile/shmob_drm_drv.c  |  4 +---
  .../gpu/drm/renesas/shmobile/shmob_drm_drv.h  |  5 +++++
  .../drm/renesas/shmobile/shmob_drm_plane.c    |  6 +++---
  4 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
index 40948b56017ff2df..291b3a5014c24f08 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
@@ -63,7 +63,7 @@ static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
  static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
  {
  	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
  	const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
  	const struct drm_display_mode *mode = &crtc->mode;
  	u32 value;
@@ -102,7 +102,7 @@ static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start) 
  {
-	struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(scrtc->crtc.dev);
  	u32 value;
value = lcdc_read(sdev, LDCNT2R); 
@@ -136,7 +136,7 @@ static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
  static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
  {
  	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
  	const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
  	const struct shmob_drm_format_info *format;
  	struct drm_device *dev = &sdev->ddev;
@@ -223,7 +223,7 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
  static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
  {
  	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
if (!scrtc->started) 
  		return;
@@ -280,7 +280,7 @@ static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
  static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
  {
  	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y); @@ -322,8 +322,8 @@ static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc, 
  				   int x, int y,
  				   struct drm_framebuffer *old_fb)
  {
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
  	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
  	const struct shmob_drm_format_info *format;
format = shmob_drm_format_info(crtc->primary->fb->format->format); 
@@ -428,7 +428,7 @@ static void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev,
static int shmob_drm_enable_vblank(struct drm_crtc *crtc) 
  {
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
shmob_drm_crtc_enable_vblank(sdev, true); @@ -437,7 +437,7 @@ static int shmob_drm_enable_vblank(struct drm_crtc *crtc) static void shmob_drm_disable_vblank(struct drm_crtc *crtc) 
  {
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
shmob_drm_crtc_enable_vblank(sdev, false); 
  }
@@ -511,7 +511,7 @@ static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
  					 struct drm_display_mode *adjusted_mode)
  {
  	struct drm_device *dev = encoder->dev;
-	struct shmob_drm_device *sdev = dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(dev);
  	struct drm_connector *connector = &sdev->connector.connector;
  	const struct drm_display_mode *panel_mode;
@@ -581,7 +581,7 @@ static inline struct shmob_drm_connector *to_shmob_connector(struct drm_connecto static int shmob_drm_connector_get_modes(struct drm_connector *connector) 
  {
-	struct shmob_drm_device *sdev = connector->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(connector->dev);
  	struct drm_display_mode *mode;
mode = drm_mode_create(connector->dev); 
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
index 2b77af3a8c97ef8c..1a1d66c6e817e227 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
@@ -95,7 +95,7 @@ static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
  static irqreturn_t shmob_drm_irq(int irq, void *arg)
  {
  	struct drm_device *dev = arg;
-	struct shmob_drm_device *sdev = dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(dev);
  	unsigned long flags;
  	u32 status;
@@ -217,8 +217,6 @@ static int shmob_drm_probe(struct platform_device *pdev) 
  	if (ret < 0)
  		return ret;
- ddev->dev_private = sdev; 
-
  	ret = shmob_drm_modeset_init(sdev);
  	if (ret < 0)
  		return dev_err_probe(&pdev->dev, ret,
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h
index 77bb0da48f37ace8..5e55ba7a207865bd 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h
@@ -39,4 +39,9 @@ struct shmob_drm_device {
  	struct shmob_drm_connector connector;
  };
+static inline struct shmob_drm_device *to_shmob_device(struct drm_device *dev) 
+{
+	return container_of(dev, struct shmob_drm_device, ddev);
+}
+
  #endif /* __SHMOB_DRM_DRV_H__ */
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
index 258288c80756bf16..c58b9dca34736342 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
@@ -63,7 +63,7 @@ static void shmob_drm_plane_compute_base(struct shmob_drm_plane *splane,
  static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
  				    struct drm_framebuffer *fb)
  {
-	struct shmob_drm_device *sdev = splane->plane.dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(splane->plane.dev);
  	u32 format;
/* TODO: Support ROP3 mode */ 
@@ -135,8 +135,8 @@ shmob_drm_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
  		       uint32_t src_w, uint32_t src_h,
  		       struct drm_modeset_acquire_ctx *ctx)
  {
+	struct shmob_drm_device *sdev = to_shmob_device(plane->dev);
  	struct shmob_drm_plane *splane = to_shmob_plane(plane);
-	struct shmob_drm_device *sdev = plane->dev->dev_private;
  	const struct shmob_drm_format_info *format;
format = shmob_drm_format_info(fb->format->format); 
@@ -167,8 +167,8 @@ shmob_drm_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
  static int shmob_drm_plane_disable(struct drm_plane *plane,
  				   struct drm_modeset_acquire_ctx *ctx)
  {
+	struct shmob_drm_device *sdev = to_shmob_device(plane->dev);
  	struct shmob_drm_plane *splane = to_shmob_plane(plane);
-	struct shmob_drm_device *sdev = plane->dev->dev_private;
splane->format = NULL; 

--
Jingfeng
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