Re: [PATCH 2/3] drm/i915/display: Add helper func to get intel_fbdev from drm_fb_helper

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On 20.03.2023 11:09, Nirmoy Das wrote:
Add a helper function to retrieve struct intel_fbdev from
struct drm_fb_helper.

Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>

Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>

Regards
Andrzej

---
  drivers/gpu/drm/i915/display/intel_fbdev.c | 23 ++++++++++------------
  1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index 673bcdfb7ff6..8c3b3c3fd0e0 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -67,6 +67,11 @@ struct intel_fbdev {
  	struct mutex hpd_lock;
  };
+static struct intel_fbdev *to_intel_fbdev(struct drm_fb_helper *fb_helper)
+{
+	return container_of(fb_helper, struct intel_fbdev, helper);
+}
+
  static struct intel_frontbuffer *to_frontbuffer(struct intel_fbdev *ifbdev)
  {
  	return ifbdev->fb->frontbuffer;
@@ -79,9 +84,7 @@ static void intel_fbdev_invalidate(struct intel_fbdev *ifbdev)
static int intel_fbdev_set_par(struct fb_info *info)
  {
-	struct drm_fb_helper *fb_helper = info->par;
-	struct intel_fbdev *ifbdev =
-		container_of(fb_helper, struct intel_fbdev, helper);
+	struct intel_fbdev *ifbdev = to_intel_fbdev(info->par);
  	int ret;
ret = drm_fb_helper_set_par(info);
@@ -93,9 +96,7 @@ static int intel_fbdev_set_par(struct fb_info *info)
static int intel_fbdev_blank(int blank, struct fb_info *info)
  {
-	struct drm_fb_helper *fb_helper = info->par;
-	struct intel_fbdev *ifbdev =
-		container_of(fb_helper, struct intel_fbdev, helper);
+	struct intel_fbdev *ifbdev = to_intel_fbdev(info->par);
  	int ret;
ret = drm_fb_helper_blank(blank, info);
@@ -108,9 +109,7 @@ static int intel_fbdev_blank(int blank, struct fb_info *info)
  static int intel_fbdev_pan_display(struct fb_var_screeninfo *var,
  				   struct fb_info *info)
  {
-	struct drm_fb_helper *fb_helper = info->par;
-	struct intel_fbdev *ifbdev =
-		container_of(fb_helper, struct intel_fbdev, helper);
+	struct intel_fbdev *ifbdev = to_intel_fbdev(info->par);
  	int ret;
ret = drm_fb_helper_pan_display(var, info);
@@ -136,8 +135,7 @@ static const struct fb_ops intelfb_ops = {
  static int intelfb_alloc(struct drm_fb_helper *helper,
  			 struct drm_fb_helper_surface_size *sizes)
  {
-	struct intel_fbdev *ifbdev =
-		container_of(helper, struct intel_fbdev, helper);
+	struct intel_fbdev *ifbdev = to_intel_fbdev(helper);
  	struct drm_framebuffer *fb;
  	struct drm_device *dev = helper->dev;
  	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -193,8 +191,7 @@ static int intelfb_alloc(struct drm_fb_helper *helper,
  static int intelfb_create(struct drm_fb_helper *helper,
  			  struct drm_fb_helper_surface_size *sizes)
  {
-	struct intel_fbdev *ifbdev =
-		container_of(helper, struct intel_fbdev, helper);
+	struct intel_fbdev *ifbdev = to_intel_fbdev(helper);
  	struct intel_framebuffer *intel_fb = ifbdev->fb;
  	struct drm_device *dev = helper->dev;
  	struct drm_i915_private *dev_priv = to_i915(dev);




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