Modify atomic_get_input_bus_format function to return input formats
supported instead of using hardcoded value.

Signed-off-by: Yuti Amonkar <yamon...@cadence.com>
---
 .../drm/bridge/cadence/cdns-mhdp8546-core.c   | 45 ++++++++++++++-----
 1 file changed, 35 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c 
b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index 6beccd2a408e..7c80555ab4ab 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -2078,27 +2078,52 @@ cdns_mhdp_bridge_atomic_reset(struct drm_bridge *bridge)
        return &cdns_mhdp_state->base;
 }
 
+#define MAX_INPUT_FORMAT 11
+
 static u32 *cdns_mhdp_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 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 drm_connector *conn = conn_state->connector;
+       struct drm_display_info *info = &conn->display_info;
        u32 *input_fmts;
-       u32 default_bus_format = MEDIA_BUS_FMT_RGB121212_1X36;
+       unsigned int i = 0;
 
        *num_input_fmts = 0;
 
        if (output_fmt != MEDIA_BUS_FMT_FIXED)
                return NULL;
 
-       input_fmts = kzalloc(sizeof(*input_fmts), GFP_KERNEL);
+       input_fmts = kcalloc(MAX_INPUT_FORMAT,
+                            sizeof(*input_fmts), GFP_KERNEL);
        if (!input_fmts)
                return NULL;
 
-       *num_input_fmts = 1;
-       input_fmts[0] = default_bus_format;
+       if (info->color_formats & DRM_COLOR_FORMAT_RGB444) {
+               input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+               input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+               input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36;
+               input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48;
+       }
+
+       if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444) {
+               input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+               input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+               input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+               input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;
+       }
+
+       if (info->color_formats & DRM_COLOR_FORMAT_YCRCB422) {
+               input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+               input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+               input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
+       }
+
+       *num_input_fmts = i;
+
        return input_fmts;
 }
 
-- 
2.17.1

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