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

[Jagan Teki <jagan@amarulasolutions.com>]

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 <jagan@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