MLK-17684: drm/bridge: nwl-dsi: Propagate DSI format to the attached panel/bridge

Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com>

diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c b/drivers/gpu/drm/bridge/nwl-dsi.c
index b33c7d2..0d7b6b2 100644 (file)
--- a/drivers/gpu/drm/bridge/nwl-dsi.c
+++ b/drivers/gpu/drm/bridge/nwl-dsi.c
@@ -188,6 +188,7 @@ struct nwl_mipi_dsi {
        struct drm_bridge               bridge;
        struct drm_connector            connector;
        struct mipi_dsi_host            host;
+       struct mipi_dsi_device          *dsi_device;
 
        struct phy                      *phy;
 
@@ -345,6 +346,8 @@ unsigned long nwl_dsi_get_bit_clock(struct drm_bridge *bridge,
        if (crtc && crtc->mode.private_flags & 0x1) {
                bus_format = (crtc->mode.private_flags & 0x1FFFE) >> 1;
                dsi->format = mipi_dsi_format_from_bus_format(bus_format);
+               /* propagate the format to the attached panel/bridge */
+               dsi->dsi_device->format = dsi->format;
                /* clear bus format change indication*/
                crtc->mode.private_flags &= ~0x1;
        }
@@ -540,6 +543,8 @@ static int nwl_dsi_host_attach(struct mipi_dsi_host *host,
        if (device->lanes < 1 || device->lanes > 4)
                return -EINVAL;
 
+       dsi->dsi_device = device;
+
        /*
         * Someone has attached to us; it could be a panel or another bridge.
         * Check to is if this is a panel or not.