[PATCH v1 05/12] video: tegra20: dsi: check for panels among child nodes
Svyatoslav Ryhel
clamor95 at gmail.com
Thu Dec 12 11:21:12 CET 2024
Switch to Linux-like approach of DSI panel binding as a DSI
controllers child node.
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
---
drivers/video/tegra20/tegra-dsi.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/video/tegra20/tegra-dsi.c b/drivers/video/tegra20/tegra-dsi.c
index 6327266dd22..53db5a25d40 100644
--- a/drivers/video/tegra20/tegra-dsi.c
+++ b/drivers/video/tegra20/tegra-dsi.c
@@ -973,10 +973,22 @@ static int tegra_dsi_bridge_probe(struct udevice *dev)
debug("%s: Cannot get avdd-dsi-csi-supply: error %d\n",
__func__, ret);
- ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev,
- "panel", &priv->panel);
+ /* Check all DSI children */
+ device_foreach_child(priv->panel, dev) {
+ if (device_get_uclass_id(priv->panel) == UCLASS_PANEL)
+ break;
+ }
+
+ /* if loop exits without panel device return error */
+ if (device_get_uclass_id(priv->panel) != UCLASS_PANEL) {
+ log_debug("%s: panel not found, ret %d\n", __func__, ret);
+ return -EINVAL;
+ }
+
+ ret = uclass_get_device_by_ofnode(UCLASS_PANEL, dev_ofnode(priv->panel),
+ &priv->panel);
if (ret) {
- printf("%s: Cannot get panel: error %d\n", __func__, ret);
+ log_debug("%s: Cannot get panel: error %d\n", __func__, ret);
return log_ret(ret);
}
@@ -1036,6 +1048,7 @@ U_BOOT_DRIVER(tegra_dsi) = {
.id = UCLASS_PANEL,
.of_match = tegra_dsi_bridge_ids,
.ops = &tegra_dsi_bridge_ops,
+ .bind = dm_scan_fdt_dev,
.probe = tegra_dsi_bridge_probe,
.plat_auto = sizeof(struct tegra_dc_plat),
.priv_auto = sizeof(struct tegra_dsi_priv),
--
2.43.0
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