diff options
Diffstat (limited to 'drivers/gpu/drm/xlnx/zynqmp_dp.c')
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dp.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 76fa7b3258a2..dd4b083b157e 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -22,6 +22,7 @@ #include <linux/delay.h> #include <linux/device.h> #include <linux/io.h> +#include <linux/media-bus-format.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> @@ -1577,6 +1578,35 @@ static const struct drm_edid *zynqmp_dp_bridge_edid_read(struct drm_bridge *brid return drm_edid_read_ddc(connector, &dp->aux.ddc); } +static u32 *zynqmp_dp_bridge_default_bus_fmts(unsigned int *num_input_fmts) +{ + u32 *formats = kzalloc(sizeof(*formats), GFP_KERNEL); + + if (formats) + *formats = MEDIA_BUS_FMT_FIXED; + *num_input_fmts = !!formats; + + return formats; +} + +static u32 * +zynqmp_dp_bridge_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) +{ + struct zynqmp_dp *dp = bridge_to_dp(bridge); + struct zynqmp_disp_layer *layer; + + layer = zynqmp_dp_disp_connected_live_layer(dp); + if (layer) + return zynqmp_disp_live_layer_formats(layer, num_input_fmts); + else + return zynqmp_dp_bridge_default_bus_fmts(num_input_fmts); +} + static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = { .attach = zynqmp_dp_bridge_attach, .detach = zynqmp_dp_bridge_detach, @@ -1589,6 +1619,7 @@ static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = { .atomic_check = zynqmp_dp_bridge_atomic_check, .detect = zynqmp_dp_bridge_detect, .edid_read = zynqmp_dp_bridge_edid_read, + .atomic_get_input_bus_fmts = zynqmp_dp_bridge_get_input_bus_fmts, }; /* ----------------------------------------------------------------------------- |