Wide bus is not supported when the mode is YUV420 in DP. In preparation
for changing the DPU programming to reflect this, the value and
assignment location of wide_bus_en for the DP submodules must be
changed. Move it from boot time in dp_init_sub_modules() to run time in
dp_display_mode_set.
Signed-off-by: Paloma Arellano <quic_parellan@xxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/msm/dp/dp_display.c | 17 +++++++++++++----
drivers/gpu/drm/msm/dp/dp_panel.h | 1 +
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 9df2a8b21021e..ddac55f45a722 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -784,10 +784,6 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
goto error_ctrl;
}
- /* populate wide_bus_supported to different layers */
- dp->ctrl->wide_bus_en = dp->wide_bus_supported;
- dp->catalog->wide_bus_en = dp->wide_bus_supported;
-
return rc;
error_ctrl:
@@ -808,6 +804,7 @@ static int dp_display_set_mode(struct msm_dp *dp_display,
drm_mode_copy(&dp->panel->dp_mode.drm_mode, &mode->drm_mode);
dp->panel->dp_mode.bpp = mode->bpp;
dp->panel->dp_mode.capabilities = mode->capabilities;
+ dp->panel->dp_mode.out_fmt_is_yuv_420 = mode->out_fmt_is_yuv_420;
dp_panel_init_panel_info(dp->panel);
return 0;
}
@@ -1402,6 +1399,9 @@ bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
dp = container_of(dp_display, struct dp_display_private, dp_display);
+ if (dp->dp_mode.out_fmt_is_yuv_420)
+ return false;
+
return dp->wide_bus_supported;
}
@@ -1615,6 +1615,15 @@ void dp_bridge_mode_set(struct drm_bridge *drm_bridge,
dp_display->dp_mode.h_active_low =
!!(dp_display->dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
+
+ dp_display->dp_mode.out_fmt_is_yuv_420 =
+ drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode);
+
+ /* populate wide_bus_support to different layers */
+ dp_display->ctrl->wide_bus_en =
+ dp_display->dp_mode.out_fmt_is_yuv_420 ? false : dp_display->wide_bus_supported;
+ dp_display->catalog->wide_bus_en =
+ dp_display->dp_mode.out_fmt_is_yuv_420 ? false : dp_display->wide_bus_supported;
}
void dp_bridge_hpd_enable(struct drm_bridge *bridge)
diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h b/drivers/gpu/drm/msm/dp/dp_panel.h
index a0dfc579c5f9f..6ec68be9f2366 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.h
+++ b/drivers/gpu/drm/msm/dp/dp_panel.h
@@ -19,6 +19,7 @@ struct dp_display_mode {
u32 bpp;
u32 h_active_low;
u32 v_active_low;
+ bool out_fmt_is_yuv_420;
};
struct dp_panel_in {
--
2.39.2
