drm/panel: panel-dsi-cm: disable TE for now

Disable TE for Droid 4 panel, since implementation is currently
broken. Also disable it for N950 panel, which is untested.

Reported-by: Tony Lindgren <tony@atomide.com>
Reported-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Fixes: 4c1b935fea54 ("drm/omap: dsi: move TE GPIO handling into core")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210227214542.99961-1-sebastian.reichel@collabora.com

diff --git a/drivers/gpu/drm/panel/panel-dsi-cm.c b/drivers/gpu/drm/panel/panel-dsi-cm.c
index af381d756ac1f6c196f998999194a58858b4f0b4..5fbfb71ca3d91f8677ebb04612937c19ecef4839 100644 (file)
--- a/drivers/gpu/drm/panel/panel-dsi-cm.c
+++ b/drivers/gpu/drm/panel/panel-dsi-cm.c
@@ -37,6 +37,7 @@ struct dsic_panel_data {
        u32 height_mm;
        u32 max_hs_rate;
        u32 max_lp_rate;
+       bool te_support;
 };
 
 struct panel_drv_data {
@@ -334,9 +335,11 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
        if (r)
                goto err;
 
-       r = mipi_dsi_dcs_set_tear_on(ddata->dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
-       if (r)
-               goto err;
+       if (ddata->panel_data->te_support) {
+               r = mipi_dsi_dcs_set_tear_on(ddata->dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+               if (r)
+                       goto err;
+       }
 
        /* possible panel bug */
        msleep(100);
@@ -619,6 +622,7 @@ static const struct dsic_panel_data taal_data = {
        .height_mm = 0,
        .max_hs_rate = 300000000,
        .max_lp_rate = 10000000,
+       .te_support = true,
 };
 
 static const struct dsic_panel_data himalaya_data = {
@@ -629,6 +633,7 @@ static const struct dsic_panel_data himalaya_data = {
        .height_mm = 88,
        .max_hs_rate = 300000000,
        .max_lp_rate = 10000000,
+       .te_support = false,
 };
 
 static const struct dsic_panel_data droid4_data = {
@@ -639,6 +644,7 @@ static const struct dsic_panel_data droid4_data = {
        .height_mm = 89,
        .max_hs_rate = 300000000,
        .max_lp_rate = 10000000,
+       .te_support = false,
 };
 
 static const struct of_device_id dsicm_of_match[] = {