From: Jonathan Marek <jonathan@xxxxxxxx>
For the bonded DSI case, DSC pic_width and timing calculations should use
the width of a single panel instead of the total combined width.
Bonded DSI can be used to drive a single panel having two input
channels, or to drive two panels with a input channel on every panel that
behave like single panel for display controller.
Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx>
Signed-off-by: Jun Nie <jun.nie@xxxxxxxxxx>
---
drivers/gpu/drm/msm/dsi/dsi.h | 3 ++-
drivers/gpu/drm/msm/dsi/dsi_host.c | 6 +++++-
drivers/gpu/drm/msm/dsi/dsi_manager.c | 2 +-
3 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 87496db203d6c..35b90c462f637 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -79,7 +79,8 @@ int msm_dsi_host_power_off(struct mipi_dsi_host *host);
int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
const struct drm_display_mode *mode);
enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
- const struct drm_display_mode *mode);
+ const struct drm_display_mode *mode,
+ bool is_bonded_dsi);
unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
int msm_dsi_host_register(struct mipi_dsi_host *host);
void msm_dsi_host_unregister(struct mipi_dsi_host *host);
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 6388bb12696ff..7a4d9c071be5a 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -2489,7 +2489,8 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
}
enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
- const struct drm_display_mode *mode)
+ const struct drm_display_mode *mode,
+ bool is_bonded_dsi)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
struct drm_dsc_config *dsc = msm_host->dsc;
@@ -2499,6 +2500,9 @@ enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
if (!msm_host->dsc)
return MODE_OK;
+ if (is_bonded_dsi)
+ pic_width = mode->hdisplay / 2;
+
if (pic_width % dsc->slice_width) {
pr_err("DSI: pic_width %d has to be multiple of slice %d\n",
pic_width, dsc->slice_width);
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index a210b7c9e5ca2..6e915b57e14bb 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -420,7 +420,7 @@ static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge,
return MODE_ERROR;
}
- return msm_dsi_host_check_dsc(host, mode);
+ return msm_dsi_host_check_dsc(host, mode, IS_BONDED_DSI());
}
static int dsi_mgr_bridge_attach(struct drm_bridge *bridge,
--
2.34.1
