drm/vc4: dsi: Add support for DSI0

Commit 4b265fe11fad4234b12d92dd8091f9aa0c878eea upstream.

DSI0 was partially supported, but didn't register with the main
driver, and the code was inconsistent as to whether it checked
port == 0 or port == 1.

Add compatible string and other support to make it consistent.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-6-maxime@cerno.tech

diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c
index ea4cd82..c2ed980 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_dsi.c
+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
@@ -1316,6 +1316,13 @@ static const struct drm_encoder_helper_funcs vc4_dsi_encoder_helper_funcs = {
        .mode_fixup = vc4_dsi_encoder_mode_fixup,
 };
 
+static const struct vc4_dsi_variant bcm2835_dsi0_variant = {
+       .port                   = 0,
+       .debugfs_name           = "dsi0_regs",
+       .regs                   = dsi0_regs,
+       .nregs                  = ARRAY_SIZE(dsi0_regs),
+};
+
 static const struct vc4_dsi_variant bcm2835_dsi1_variant = {
        .port                   = 1,
        .broken_axi_workaround  = true,
@@ -1325,6 +1332,7 @@ static const struct vc4_dsi_variant bcm2835_dsi1_variant = {
 };
 
 static const struct of_device_id vc4_dsi_dt_match[] = {
+       { .compatible = "brcm,bcm2835-dsi0", &bcm2835_dsi0_variant },
        { .compatible = "brcm,bcm2835-dsi1", &bcm2835_dsi1_variant },
        {}
 };