target/linux/bcm27xx/patches-6.1/950-0037-drm-tc358762-Set-the-pre_enable_upstream_first-flag-.patch

   1 From 2551dd11f3c6f1633f7aa9ec2c68b1c9831b3559 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 16 Dec 2021 15:33:43 +0000
   4 Subject: [PATCH] drm/tc358762: Set the pre_enable_upstream_first flag
   5  to configure DSI host
   6
   7 TC358762 wants the DSI host to be prepared before it is powered up, so
   8 set the flag to request that the upstream bridges have their
   9 pre_enable called first.
  10
  11 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  12 ---
  13  drivers/gpu/drm/bridge/tc358762.c | 1 +
  14  1 file changed, 1 insertion(+)
  15
  16 --- a/drivers/gpu/drm/bridge/tc358762.c
  17 +++ b/drivers/gpu/drm/bridge/tc358762.c
  18 @@ -229,6 +229,7 @@ static int tc358762_probe(struct mipi_ds
  19         ctx->bridge.funcs = &tc358762_bridge_funcs;
  20         ctx->bridge.type = DRM_MODE_CONNECTOR_DPI;
  21         ctx->bridge.of_node = dev->of_node;
  22 +       ctx->bridge.pre_enable_upstream_first = true;
  23
  24         drm_bridge_add(&ctx->bridge);
  25