target/linux/bcm27xx/patches-6.1/950-0052-drm-vc4-Add-comments-for-which-HVS_PIXEL_ORDER_xxx-d.patch

   1 From 30f0c2f0da952655da949c2af36bf53138092ba5 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Mon, 6 Jun 2022 14:53:56 +0100
   4 Subject: [PATCH] drm: vc4: Add comments for which HVS_PIXEL_ORDER_xxx
   5  defines apply
   6
   7 The HVS_PIXEL_ORDER_xxx defines apply to specific HVS_PIXEL_FORMAT_xxx
   8 modes, so add comments to make this obvious.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  11 ---
  12  drivers/gpu/drm/vc4/vc4_regs.h | 3 +++
  13  1 file changed, 3 insertions(+)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_regs.h
  16 +++ b/drivers/gpu/drm/vc4/vc4_regs.h
  17 @@ -870,16 +870,19 @@ enum hvs_pixel_format {
  18  /* Note: the LSB is the rightmost character shown.  Only valid for
  19   * HVS_PIXEL_FORMAT_RGB8888, not RGB888.
  20   */
  21 +/* For modes 332, 4444, 555, 5551, 6666, 8888, 10:10:10:2 */
  22  #define HVS_PIXEL_ORDER_RGBA                   0
  23  #define HVS_PIXEL_ORDER_BGRA                   1
  24  #define HVS_PIXEL_ORDER_ARGB                   2
  25  #define HVS_PIXEL_ORDER_ABGR                   3
  26
  27 +/* For modes 666 and 888 (4 & 5) */
  28  #define HVS_PIXEL_ORDER_XBRG                   0
  29  #define HVS_PIXEL_ORDER_XRBG                   1
  30  #define HVS_PIXEL_ORDER_XRGB                   2
  31  #define HVS_PIXEL_ORDER_XBGR                   3
  32
  33 +/* For YCbCr modes (8-12, and 17) */
  34  #define HVS_PIXEL_ORDER_XYCBCR                 0
  35  #define HVS_PIXEL_ORDER_XYCRCB                 1
  36  #define HVS_PIXEL_ORDER_YXCBCR                 2