| Message ID | ab25925723cff2f3e773e7137567ef86fff5fdba.1649330171.git.hns@goldelico.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | MIPS: JZ4780 and CI20 HDMI | expand |
On 07/04/2022 13:16, H. Nikolaus Schaller wrote: > From: Paul Cercueil <paul@crapouillou.net> > > The .atomic_get_input_bus_fmts() callback of our top bridge should > return the possible input formats for a given output format. If the > requested output format is not supported, then NULL should be returned, > otherwise the bus format negociation will end with a bus format that the > encoder does not support. > > Signed-off-by: Paul Cercueil <paul@crapouillou.net> > Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> > --- > drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 28 ++++++++++++++++++++++- > 1 file changed, 27 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > index a4f5a323f4906..8eb0ad501a7b9 100644 > --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > @@ -833,6 +833,32 @@ static int ingenic_drm_bridge_atomic_check(struct drm_bridge *bridge, > } > } > > +static u32 * > +ingenic_drm_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, > + struct drm_bridge_state *bridge_state, > + struct drm_crtc_state *crtc_state, > + struct drm_connector_state *conn_state, > + u32 output_fmt, > + unsigned int *num_input_fmts) > +{ > + switch (output_fmt) { > + case MEDIA_BUS_FMT_RGB888_1X24: > + case MEDIA_BUS_FMT_RGB666_1X18: > + case MEDIA_BUS_FMT_RGB565_1X16: > + case MEDIA_BUS_FMT_RGB888_3X8: > + case MEDIA_BUS_FMT_RGB888_3X8_DELTA: > + break; > + default: > + *num_input_fmts = 0; > + return NULL; > + } > + > + return drm_atomic_helper_bridge_propagate_bus_fmt(bridge, bridge_state, > + crtc_state, conn_state, > + output_fmt, > + num_input_fmts); > +} > + > static irqreturn_t ingenic_drm_irq_handler(int irq, void *arg) > { > struct ingenic_drm *priv = drm_device_get_priv(arg); > @@ -984,7 +1010,7 @@ static const struct drm_bridge_funcs ingenic_drm_bridge_funcs = { > .atomic_reset = drm_atomic_helper_bridge_reset, > .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, > .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, > - .atomic_get_input_bus_fmts = drm_atomic_helper_bridge_propagate_bus_fmt, > + .atomic_get_input_bus_fmts = ingenic_drm_bridge_atomic_get_input_bus_fmts, > }; > > static const struct drm_mode_config_funcs ingenic_drm_mode_config_funcs = { Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index a4f5a323f4906..8eb0ad501a7b9 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -833,6 +833,32 @@ static int ingenic_drm_bridge_atomic_check(struct drm_bridge *bridge, } } +static u32 * +ingenic_drm_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + switch (output_fmt) { + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_RGB666_1X18: + case MEDIA_BUS_FMT_RGB565_1X16: + case MEDIA_BUS_FMT_RGB888_3X8: + case MEDIA_BUS_FMT_RGB888_3X8_DELTA: + break; + default: + *num_input_fmts = 0; + return NULL; + } + + return drm_atomic_helper_bridge_propagate_bus_fmt(bridge, bridge_state, + crtc_state, conn_state, + output_fmt, + num_input_fmts); +} + static irqreturn_t ingenic_drm_irq_handler(int irq, void *arg) { struct ingenic_drm *priv = drm_device_get_priv(arg); @@ -984,7 +1010,7 @@ static const struct drm_bridge_funcs ingenic_drm_bridge_funcs = { .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, - .atomic_get_input_bus_fmts = drm_atomic_helper_bridge_propagate_bus_fmt, + .atomic_get_input_bus_fmts = ingenic_drm_bridge_atomic_get_input_bus_fmts, }; static const struct drm_mode_config_funcs ingenic_drm_mode_config_funcs = {