[PATCH v2 1/8] drm/bridge: synopsis: Add mode_fixup and bridge timings support
From: H. Nikolaus Schaller <hidden>
Date: 2021-08-05 14:14:20
Also in:
dri-devel, linux-mips, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for bridge chips, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Andrzej Hajda, Neil Armstrong, Robert Foss, Linus Torvalds
From: Paul Boddie <redacted> The platform-specific configuration structure is augmented with mode_fixup and timings members so that specialisations of the Synopsys driver can introduce mode flags and bus flags. Signed-off-by: Paul Boddie <redacted> Signed-off-by: Ezequiel Garcia <redacted> Signed-off-by: H. Nikolaus Schaller <redacted> --- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 16 ++++++++++++++++ include/drm/bridge/dw_hdmi.h | 5 +++++ 2 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index e7c7c9b9c646f..e8499eb11328c 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c@@ -2810,6 +2810,19 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge, return mode_status; } +static bool +dw_hdmi_bridge_mode_fixup(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct dw_hdmi *hdmi = bridge->driver_private; + + if (hdmi->plat_data->mode_fixup) + return hdmi->plat_data->mode_fixup(bridge, mode, adjusted_mode); + + return true; +} + static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *orig_mode, const struct drm_display_mode *mode)
@@ -2883,6 +2896,7 @@ static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = { .atomic_disable = dw_hdmi_bridge_atomic_disable, .mode_set = dw_hdmi_bridge_mode_set, .mode_valid = dw_hdmi_bridge_mode_valid, + .mode_fixup = dw_hdmi_bridge_mode_fixup, .detect = dw_hdmi_bridge_detect, .get_edid = dw_hdmi_bridge_get_edid, };
@@ -3364,6 +3378,8 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, #ifdef CONFIG_OF hdmi->bridge.of_node = pdev->dev.of_node; #endif + if (plat_data->timings) + hdmi->bridge.timings = plat_data->timings; memset(&pdevinfo, 0, sizeof(pdevinfo)); pdevinfo.parent = dev;
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 6a5716655619b..677137445d534 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h@@ -8,6 +8,7 @@ #include <sound/hdmi-codec.h> +struct drm_bridge; struct drm_display_info; struct drm_display_mode; struct drm_encoder;
@@ -140,6 +141,10 @@ struct dw_hdmi_plat_data { enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data, const struct drm_display_info *info, const struct drm_display_mode *mode); + bool (*mode_fixup)(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + const struct drm_bridge_timings *timings; /* Vendor PHY support */ const struct dw_hdmi_phy_ops *phy_ops;
--
2.31.1