[PATCH 4/5] coresight: Use of_cpu_phandle_to_id for grabbing CPU id
Jonathan Cameron
Jonathan.Cameron at huawei.com
Tue Jul 8 01:37:11 PDT 2025
On Mon, 7 Jul 2025 16:04:13 +0100
Alireza Sanaee <alireza.sanaee at huawei.com> wrote:
> Use the newly created API to grab CPU id.
>
> Signed-off-by: Alireza Sanaee <alireza.sanaee at huawei.com>
> ---
> drivers/hwtracing/coresight/coresight-platform.c | 14 ++------------
> 1 file changed, 2 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
> index 8192ba3279f0..f032fdbe959b 100644
> --- a/drivers/hwtracing/coresight/coresight-platform.c
> +++ b/drivers/hwtracing/coresight/coresight-platform.c
> @@ -167,19 +167,9 @@ of_coresight_get_output_ports_node(const struct device_node *node)
>
> static int of_coresight_get_cpu(struct device *dev)
> {
> - int cpu;
> - struct device_node *dn;
> -
> - if (!dev->of_node)
> - return -ENODEV;
> -
> - dn = of_parse_phandle(dev->of_node, "cpu", 0);
> - if (!dn)
> - return -ENODEV;
> -
> - cpu = of_cpu_node_to_id(dn);
> + struct device_node *dn = NULL;
> + int cpu = of_cpu_phandle_to_id(dev->of_node, &dn, 0);
> of_node_put(dn);
> -
Again, allowing for NULL parameter gives you simply
return of_cpu_phandle_to_id(dev->of_node, NULL, 0);
> return cpu;
> }
>
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