From: Dave Stevenson dave.stevenson@raspberrypi.com
[ Upstream commit 4d9273c978d4c1af15d7874c10c732ec83d444d0 ]
vc4_dsi was registering both dsi0 and dsi1 as VC4_ENCODER_TYPE_DSI1 which seemed to work OK for a single DSI display, but fails if there are two DSI displays connected.
Update to register the correct type.
Fixes: 4078f5757144 ("drm/vc4: Add DSI driver") Signed-off-by: Dave Stevenson dave.stevenson@raspberrypi.com Link: https://lore.kernel.org/r/20220613144800.326124-15-maxime@cerno.tech Signed-off-by: Maxime Ripard maxime@cerno.tech Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/vc4/vc4_dsi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c index 81a6c4e9576d..97a258c934af 100644 --- a/drivers/gpu/drm/vc4/vc4_dsi.c +++ b/drivers/gpu/drm/vc4/vc4_dsi.c @@ -1518,7 +1518,8 @@ static int vc4_dsi_bind(struct device *dev, struct device *master, void *data) return -ENOMEM;
INIT_LIST_HEAD(&dsi->bridge_chain); - vc4_dsi_encoder->base.type = VC4_ENCODER_TYPE_DSI1; + vc4_dsi_encoder->base.type = dsi->variant->port ? + VC4_ENCODER_TYPE_DSI1 : VC4_ENCODER_TYPE_DSI0; vc4_dsi_encoder->dsi = dsi; dsi->encoder = &vc4_dsi_encoder->base.base;