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video: tegra20: dsi: check for panels among child nodes

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Switch to Linux-like approach of DSI panel binding as a DSI
controllers child node.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
This commit is contained in:
Svyatoslav Ryhel
2024-11-24 09:38:03 +02:00
parent 530ac53175
commit eef35b8755
1 changed files with 16 additions and 3 deletions
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19
drivers/video/tegra20/tegra-dsi.c
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@@ -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),