[PATCH v2 04/11] video: rockchip: dw-mipi-dsi: Add get_display_timing support
Dang Huynh
danct12 at riseup.net
Sun Feb 23 13:13:39 CET 2025
This allows video drivers to obtain display timings from the video
bridge.
Signed-off-by: Dang Huynh <danct12 at riseup.net>
---
drivers/video/rockchip/dw_mipi_dsi_rockchip.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
index 95e825eb3d6de7ef2836fa029927034394486e9c..d21ea7953a6003fa49da3e22220d3312109f600c 100644
--- a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
+++ b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
@@ -224,6 +224,7 @@ struct dw_rockchip_dsi_priv {
struct mipi_dsi_device device;
void __iomem *base;
struct udevice *panel;
+ struct display_timing timings;
void __iomem *grf;
/* Optional external dphy */
@@ -709,7 +710,7 @@ static int dw_mipi_dsi_rockchip_attach(struct udevice *dev)
struct dw_rockchip_dsi_priv *priv = dev_get_priv(dev);
struct mipi_dsi_device *device = &priv->device;
struct mipi_dsi_panel_plat *mplat;
- struct display_timing timings;
+ struct display_timing *timings = &priv->timings;
int ret;
ret = uclass_first_device_err(UCLASS_PANEL, &priv->panel);
@@ -724,10 +725,10 @@ static int dw_mipi_dsi_rockchip_attach(struct udevice *dev)
device->format = mplat->format;
device->mode_flags = mplat->mode_flags;
- ret = panel_get_display_timing(priv->panel, &timings);
+ ret = panel_get_display_timing(priv->panel, timings);
if (ret) {
ret = ofnode_decode_display_timing(dev_ofnode(priv->panel),
- 0, &timings);
+ 0, timings);
if (ret) {
dev_err(dev, "decode display timing error %d\n", ret);
return ret;
@@ -740,7 +741,7 @@ static int dw_mipi_dsi_rockchip_attach(struct udevice *dev)
return ret;
}
- ret = dsi_host_init(priv->dsi_host, device, &timings, 4,
+ ret = dsi_host_init(priv->dsi_host, device, timings, 4,
&dsi_rockchip_phy_ops);
if (ret) {
dev_err(dev, "failed to initialize mipi dsi host\n");
@@ -902,9 +903,19 @@ static int dw_mipi_dsi_rockchip_probe(struct udevice *dev)
return 0;
}
+static int dw_mipi_dsi_rockchip_get_dt(struct udevice *dev,
+ struct display_timing *timings)
+{
+ struct dw_rockchip_dsi_priv *priv = dev_get_priv(dev);
+
+ memcpy(timings, &priv->timings, sizeof(*timings));
+ return 0;
+}
+
struct video_bridge_ops dw_mipi_dsi_rockchip_ops = {
.attach = dw_mipi_dsi_rockchip_attach,
.set_backlight = dw_mipi_dsi_rockchip_set_bl,
+ .get_display_timing = dw_mipi_dsi_rockchip_get_dt,
};
static const struct rockchip_dw_dsi_chip_data rk3399_chip_data[] = {
--
2.48.1
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