[RFC PATCH 17/17] drm: bridge: samsung-dsim: Add bridge mode_fixup
From: Jagan Teki <jagan@amarulasolutions.com>
Date: 2021-07-04 09:05:55
Also in:
dri-devel, linux-devicetree, linux-samsung-soc
Subsystem:
drm driver for samsung mipi dsim bridge, drm drivers, drm drivers and misc gpu patches, drm drivers for bridge chips, the rest · Maintainers:
Inki Dae, Jagan Teki, Marek Szyprowski, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Andrzej Hajda, Neil Armstrong, Robert Foss, Linus Torvalds
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
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