在 2022/6/30 1:32, Laurent Pinchart 写道:
On Wed, Jun 29, 2022 at 05:08:58PM +0200, Lucas Stach wrote:
Am Donnerstag, dem 16.06.2022 um 15:33 +0800 schrieb Peng Fan (OSS):
From: Peng Fan <peng.fan@xxxxxxx>
The provider device is created using platform_device_register_data in
imx-bus driver, which not has of_node. With of_node set, it will be
easy to support QoS settings.
That's a bit dangerous, as sharing a of_node between two devices can
lead to some reference counting issues IIRC, but then I also don't see
a good way to do this any differently.
Regards,
Lucas
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
drivers/interconnect/imx/imx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/interconnect/imx/imx.c b/drivers/interconnect/imx/imx.c
index 1f16eedea21c..78557fe6da2c 100644
--- a/drivers/interconnect/imx/imx.c
+++ b/drivers/interconnect/imx/imx.c
@@ -264,6 +264,7 @@ int imx_icc_register(struct platform_device *pdev,
provider->xlate = of_icc_xlate_onecell;
provider->data = data;
provider->dev = dev->parent;
+ provider->dev->of_node = dev->parent->of_node;
Due to the previous line, provider->dev is equal to dev->parent, so
doesn't this essentially do
dev->parent->of_node = dev->parent->of_node;
which is a no-op ?
hmm. Indeed, I just not able to recall the issue I met before. I'll drop
this patch in V3.
Thanks,
Peng.
platform_set_drvdata(pdev, imx_provider);
ret = icc_provider_add(provider);
