target/linux/bcm27xx/patches-5.10/950-0563-drm-vc4-dsi-Add-support-for-DSI0.patch

   1 From 7302f0d6f939247c1c658b79aba0866c92560ff7 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 3 Dec 2020 14:25:40 +0100
   4 Subject: [PATCH] drm/vc4: dsi: Add support for DSI0
   5
   6 Commit 4b265fe11fad4234b12d92dd8091f9aa0c878eea upstream.
   7
   8 DSI0 was partially supported, but didn't register with the main
   9 driver, and the code was inconsistent as to whether it checked
  10 port == 0 or port == 1.
  11
  12 Add compatible string and other support to make it consistent.
  13
  14 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  15 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  16 Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-6-maxime@cerno.tech
  17 ---
  18  drivers/gpu/drm/vc4/vc4_dsi.c | 8 ++++++++
  19  1 file changed, 8 insertions(+)
  20
  21 --- a/drivers/gpu/drm/vc4/vc4_dsi.c
  22 +++ b/drivers/gpu/drm/vc4/vc4_dsi.c
  23 @@ -1316,6 +1316,13 @@ static const struct drm_encoder_helper_f
  24         .mode_fixup = vc4_dsi_encoder_mode_fixup,
  25  };
  26
  27 +static const struct vc4_dsi_variant bcm2835_dsi0_variant = {
  28 +       .port                   = 0,
  29 +       .debugfs_name           = "dsi0_regs",
  30 +       .regs                   = dsi0_regs,
  31 +       .nregs                  = ARRAY_SIZE(dsi0_regs),
  32 +};
  33 +
  34  static const struct vc4_dsi_variant bcm2835_dsi1_variant = {
  35         .port                   = 1,
  36         .broken_axi_workaround  = true,
  37 @@ -1325,6 +1332,7 @@ static const struct vc4_dsi_variant bcm2
  38  };
  39
  40  static const struct of_device_id vc4_dsi_dt_match[] = {
  41 +       { .compatible = "brcm,bcm2835-dsi0", &bcm2835_dsi0_variant },
  42         { .compatible = "brcm,bcm2835-dsi1", &bcm2835_dsi1_variant },
  43         {}
  44  };