The OnSemi FIN3385 Parallel-to-LVDS encoder has a dedicated input line to select input pixel data sampling edge. Add DT property "pixelclk-active", same as the one used by display timings, and configure bus flags based on this DT property.
Signed-off-by: Marek Vasut marex@denx.de Cc: Alexandre Torgue alexandre.torgue@st.com Cc: Andrzej Hajda a.hajda@samsung.com Cc: Antonio Borneo antonio.borneo@st.com Cc: Benjamin Gaignard benjamin.gaignard@st.com Cc: Biju Das biju.das.jz@bp.renesas.com Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: Maxime Coquelin mcoquelin.stm32@gmail.com Cc: Philippe Cornu philippe.cornu@st.com Cc: Sam Ravnborg sam@ravnborg.org Cc: Vincent Abriou vincent.abriou@st.com Cc: Yannick Fertre yannick.fertre@st.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com To: dri-devel@lists.freedesktop.org --- drivers/gpu/drm/bridge/lvds-codec.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/bridge/lvds-codec.c b/drivers/gpu/drm/bridge/lvds-codec.c index f52ccffc1bd1..bc941d4fb5b9 100644 --- a/drivers/gpu/drm/bridge/lvds-codec.c +++ b/drivers/gpu/drm/bridge/lvds-codec.c @@ -19,6 +19,7 @@ struct lvds_codec { struct device *dev; struct drm_bridge bridge; struct drm_bridge *panel_bridge; + struct drm_bridge_timings timings; struct regulator *vcc; struct gpio_desc *powerdown_gpio; u32 connector_type; @@ -80,6 +81,7 @@ static int lvds_codec_probe(struct platform_device *pdev) struct device_node *panel_node; struct drm_panel *panel; struct lvds_codec *lvds_codec; + u32 val; int ret;
lvds_codec = devm_kzalloc(dev, sizeof(*lvds_codec), GFP_KERNEL); @@ -124,6 +126,12 @@ static int lvds_codec_probe(struct platform_device *pdev) if (IS_ERR(lvds_codec->panel_bridge)) return PTR_ERR(lvds_codec->panel_bridge);
+ if (!of_property_read_u32(dev->of_node, "pixelclk-active", &val)) { + lvds_codec->timings.input_bus_flags = val ? + DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE : + DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE; + } + /* * The panel_bridge bridge is attached to the panel's of_node, * but we need a bridge attached to our of_node for our user @@ -131,6 +139,7 @@ static int lvds_codec_probe(struct platform_device *pdev) */ lvds_codec->bridge.of_node = dev->of_node; lvds_codec->bridge.funcs = &funcs; + lvds_codec->bridge.timings = &lvds_codec->timings; drm_bridge_add(&lvds_codec->bridge);
platform_set_drvdata(pdev, lvds_codec);