| Message ID | 20211116062256.2417186-12-vkoul@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/msm: Add Display Stream Compression Support | expand |
On 16/11/2021 09:22, Vinod Koul wrote: > Add a mode valid callback for dsi_mgr for checking mode being valid in > case of DSC. For DSC the height and width needs to be multiple of slice, > so we check that here > > Signed-off-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > drivers/gpu/drm/msm/dsi/dsi.h | 2 ++ > drivers/gpu/drm/msm/dsi/dsi_host.c | 26 ++++++++++++++++++++++++++ > drivers/gpu/drm/msm/dsi/dsi_manager.c | 12 ++++++++++++ > 3 files changed, 40 insertions(+) > > diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h > index 569c8ff062ba..e7affab2fc1e 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi.h > +++ b/drivers/gpu/drm/msm/dsi/dsi.h > @@ -115,6 +115,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host, > 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); > struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); > unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); > struct drm_bridge *msm_dsi_host_get_bridge(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 30c1e299aa52..31d385d8d834 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi_host.c > +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c > @@ -2588,6 +2588,32 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, > return 0; > } > > +enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, > + const struct drm_display_mode *mode) > +{ > + struct msm_dsi_host *msm_host = to_msm_dsi_host(host); > + struct msm_display_dsc_config *dsc = msm_host->dsc; > + int pic_width = mode->hdisplay; > + int pic_height = mode->vdisplay; > + > + if (!msm_host->dsc) > + return MODE_OK; > + > + if (pic_width % dsc->drm->slice_width) { > + pr_err("DSI: pic_width %d has to be multiple of slice %d\n", > + pic_width, dsc->drm->slice_width); > + return MODE_H_ILLEGAL; > + } > + > + if (pic_height % dsc->drm->slice_height) { > + pr_err("DSI: pic_height %d has to be multiple of slice %d\n", > + pic_height, dsc->drm->slice_height); > + return MODE_V_ILLEGAL; > + } > + > + return MODE_OK; > +} > + > struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host) > { > return of_drm_find_panel(to_msm_dsi_host(host)->device_node); > diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c > index 20c4d650fd80..0ad8a53aaa0e 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c > +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c > @@ -579,6 +579,17 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge, > msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode); > } > > +static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge, > + const struct drm_display_info *info, > + const struct drm_display_mode *mode) > +{ > + int id = dsi_mgr_bridge_get_id(bridge); > + struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); > + struct mipi_dsi_host *host = msm_dsi->host; > + > + return msm_dsi_host_check_dsc(host, mode); > +} > + > static const struct drm_connector_funcs dsi_mgr_connector_funcs = { > .detect = dsi_mgr_connector_detect, > .fill_modes = drm_helper_probe_single_connector_modes, > @@ -600,6 +611,7 @@ static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = { > .disable = dsi_mgr_bridge_disable, > .post_disable = dsi_mgr_bridge_post_disable, > .mode_set = dsi_mgr_bridge_mode_set, > + .mode_valid = dsi_mgr_bridge_mode_valid, > }; > > /* initialize connector when we're connected to a drm_panel */ >
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index 569c8ff062ba..e7affab2fc1e 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -115,6 +115,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host, 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); struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); struct drm_bridge *msm_dsi_host_get_bridge(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 30c1e299aa52..31d385d8d834 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -2588,6 +2588,32 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, return 0; } +enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, + const struct drm_display_mode *mode) +{ + struct msm_dsi_host *msm_host = to_msm_dsi_host(host); + struct msm_display_dsc_config *dsc = msm_host->dsc; + int pic_width = mode->hdisplay; + int pic_height = mode->vdisplay; + + if (!msm_host->dsc) + return MODE_OK; + + if (pic_width % dsc->drm->slice_width) { + pr_err("DSI: pic_width %d has to be multiple of slice %d\n", + pic_width, dsc->drm->slice_width); + return MODE_H_ILLEGAL; + } + + if (pic_height % dsc->drm->slice_height) { + pr_err("DSI: pic_height %d has to be multiple of slice %d\n", + pic_height, dsc->drm->slice_height); + return MODE_V_ILLEGAL; + } + + return MODE_OK; +} + struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host) { return of_drm_find_panel(to_msm_dsi_host(host)->device_node); diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 20c4d650fd80..0ad8a53aaa0e 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -579,6 +579,17 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge, msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode); } +static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_info *info, + const struct drm_display_mode *mode) +{ + int id = dsi_mgr_bridge_get_id(bridge); + struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); + struct mipi_dsi_host *host = msm_dsi->host; + + return msm_dsi_host_check_dsc(host, mode); +} + static const struct drm_connector_funcs dsi_mgr_connector_funcs = { .detect = dsi_mgr_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, @@ -600,6 +611,7 @@ static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = { .disable = dsi_mgr_bridge_disable, .post_disable = dsi_mgr_bridge_post_disable, .mode_set = dsi_mgr_bridge_mode_set, + .mode_valid = dsi_mgr_bridge_mode_valid, }; /* initialize connector when we're connected to a drm_panel */
Add a mode valid callback for dsi_mgr for checking mode being valid in case of DSC. For DSC the height and width needs to be multiple of slice, so we check that here Signed-off-by: Vinod Koul <vkoul@kernel.org> --- drivers/gpu/drm/msm/dsi/dsi.h | 2 ++ drivers/gpu/drm/msm/dsi/dsi_host.c | 26 ++++++++++++++++++++++++++ drivers/gpu/drm/msm/dsi/dsi_manager.c | 12 ++++++++++++ 3 files changed, 40 insertions(+)