target/linux/bcm27xx/patches-6.1/950-0001-Support-RPi-DPI-interface-in-mode6-for-18-bit-color.patch

   1 From 6da5134dcde68af6d86003931375ca1a6e6d0169 Mon Sep 17 00:00:00 2001
   2 From: Joerg Quinten <aBUGSworstnightmare@gmail.com>
   3 Date: Fri, 18 Jun 2021 13:02:29 +0200
   4 Subject: [PATCH] Support RPi DPI interface in mode6 for 18-bit color
   5
   6 A matching media bus format was added and an overlay for using it,
   7 both with FB and VC4 was added as well.
   8
   9 Signed-off-by: Joerg Quinten <aBUGSworstnightmare@gmail.com>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_dpi.c | 6 ++++++
  12  1 file changed, 6 insertions(+)
  13
  14 --- a/drivers/gpu/drm/vc4/vc4_dpi.c
  15 +++ b/drivers/gpu/drm/vc4/vc4_dpi.c
  16 @@ -170,10 +170,16 @@ static void vc4_dpi_encoder_enable(struc
  17                                 dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR,
  18                                                        DPI_ORDER);
  19                                 break;
  20 +                       case MEDIA_BUS_FMT_BGR666_1X24_CPADHI:
  21 +                               dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER);
  22 +                               fallthrough;
  23                         case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
  24                                 dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_2,
  25                                                        DPI_FORMAT);
  26                                 break;
  27 +                       case MEDIA_BUS_FMT_BGR666_1X18:
  28 +                               dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER);
  29 +                               fallthrough;
  30                         case MEDIA_BUS_FMT_RGB666_1X18:
  31                                 dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1,
  32                                                        DPI_FORMAT);