[RFC PATCH 17/17] drm: bridge: samsung-dsim: Add bridge mode_fixup

[Jagan Teki]

Fixing up the mode flags are required in order to correlate
the correct sync flags in i.MX8MM eLCDIF.

So, handle the mode flags via bridge, mode_fixup.

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
 drivers/gpu/drm/bridge/samsung-dsim.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c 
b/drivers/gpu/drm/bridge/samsung-dsim.c
index 0ed218f5eefc..c2a76ee5ac4e 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -1474,6 +1474,16 @@ static void samsung_dsim_bridge_disable(struct 
drm_bridge *bridge)
        pm_runtime_put_sync(dsi->dev);
 }
 
+static bool samsung_dsim_bridge_mode_fixup(struct drm_bridge *bridge,
+                                          const struct drm_display_mode *mode,
+                                          struct drm_display_mode 
*adjusted_mode)
+{
+       adjusted_mode->flags |= (DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC);
+       adjusted_mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
+
+       return true;
+}
+
 static void samsung_dsim_bridge_mode_set(struct drm_bridge *bridge,
                                         const struct drm_display_mode *mode,
                                         const struct drm_display_mode 
*adjusted_mode)
@@ -1542,6 +1552,7 @@ static const struct drm_bridge_funcs 
samsung_dsim_bridge_funcs = {
        .enable = samsung_dsim_bridge_enable,
        .disable = samsung_dsim_bridge_disable,
        .mode_set = samsung_dsim_bridge_mode_set,
+       .mode_fixup = samsung_dsim_bridge_mode_fixup,
        .attach = samsung_dsim_bridge_attach,
 };
 
-- 
2.25.1