Signed-off-by: Mark Zhang markz@nvidia.com --- drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c index b69f88cd15b2..654575607864 100644 --- a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c +++ b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c @@ -27,6 +27,7 @@ struct sharp_panel {
struct backlight_device *backlight; struct regulator *supply; + u32 te_polarity;
bool prepared; bool enabled; @@ -280,7 +281,7 @@ static int sharp_panel_enable(struct drm_panel *panel) return 0; }
-static const struct drm_display_mode default_mode = { +static struct drm_display_mode default_mode = { .clock = 278000, .hdisplay = 2560, .hsync_start = 2560 + 128, @@ -297,6 +298,12 @@ static const struct drm_display_mode default_mode = { static int sharp_panel_get_modes(struct drm_panel *panel) { struct drm_display_mode *mode; + struct sharp_panel *sharp = to_sharp_panel(panel); + + if (sharp->te_polarity) + default_mode.flags |= DRM_MODE_FLAG_TE_POLARITY_HIGH; + else + default_mode.flags |= DRM_MODE_FLAG_TE_POLARITY_LOW;
mode = drm_mode_duplicate(panel->drm, &default_mode); if (!mode) { @@ -341,6 +348,14 @@ static int sharp_panel_add(struct sharp_panel *sharp) if (IS_ERR(sharp->supply)) return PTR_ERR(sharp->supply);
+ err = of_property_read_u32(sharp->link1->dev.of_node, + "te-polarity", &sharp->te_polarity); + if (err < 0) { + dev_err(&sharp->link1->dev, + "Read te-polarity failed: %d\n", err); + return err; + } + np = of_parse_phandle(sharp->link1->dev.of_node, "backlight", 0); if (np) { sharp->backlight = of_find_backlight_by_node(np);