From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
[ Upstream commit 2d87e6c1b99c402360fdfe19ce4f579ab2f96adf ]
This is better than storing -ENODEV in the id number. This fixes SoCs
with only one IPU that don't specify an IPU alias in the device tree.
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
drivers/gpu/ipu-v3/ipu-common.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 658fa2d3e40c..2c8411b8d050 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -1401,6 +1401,8 @@ static int ipu_probe(struct platform_device *pdev)
return -ENODEV;
ipu->id = of_alias_get_id(np, "ipu");
+ if (ipu->id < 0)
+ ipu->id = 0;
if (of_device_is_compatible(np, "fsl,imx6qp-ipu") &&
IS_ENABLED(CONFIG_DRM)) {
--
2.17.1
