Re: [PATCH] soc: qcom: Use of_property_present() for testing DT property presence

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On 10.03.2023 15:47, Rob Herring wrote:
> It is preferred to use typed property access functions (i.e.
> of_property_read_<type> functions) rather than low-level
> of_get_property/of_find_property functions for reading properties. As
> part of this, convert of_get_property/of_find_property calls to the
> recently added of_property_present() helper when we just want to test
> for presence of a property and nothing more.
> 
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Konrad
>  drivers/soc/qcom/qcom_aoss.c | 2 +-
>  drivers/soc/qcom/smem.c      | 2 +-
>  drivers/soc/qcom/smsm.c      | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
> index 18c856056475..e376c32cc16e 100644
> --- a/drivers/soc/qcom/qcom_aoss.c
> +++ b/drivers/soc/qcom/qcom_aoss.c
> @@ -395,7 +395,7 @@ static int qmp_cooling_devices_register(struct qmp *qmp)
>  		return -ENOMEM;
>  
>  	for_each_available_child_of_node(np, child) {
> -		if (!of_find_property(child, "#cooling-cells", NULL))
> +		if (!of_property_present(child, "#cooling-cells"))
>  			continue;
>  		ret = qmp_cooling_device_add(qmp, &qmp->cooling_devs[count++],
>  					     child);
> diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
> index 4f163d62942c..25f5925a8d51 100644
> --- a/drivers/soc/qcom/smem.c
> +++ b/drivers/soc/qcom/smem.c
> @@ -1045,7 +1045,7 @@ static int qcom_smem_probe(struct platform_device *pdev)
>  	int i;
>  
>  	num_regions = 1;
> -	if (of_find_property(pdev->dev.of_node, "qcom,rpm-msg-ram", NULL))
> +	if (of_property_present(pdev->dev.of_node, "qcom,rpm-msg-ram"))
>  		num_regions++;
>  
>  	array_size = num_regions * sizeof(struct smem_region);
> diff --git a/drivers/soc/qcom/smsm.c b/drivers/soc/qcom/smsm.c
> index 3e8994d6110e..8c137dff7dac 100644
> --- a/drivers/soc/qcom/smsm.c
> +++ b/drivers/soc/qcom/smsm.c
> @@ -510,7 +510,7 @@ static int qcom_smsm_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  
>  	for_each_child_of_node(pdev->dev.of_node, local_node) {
> -		if (of_find_property(local_node, "#qcom,smem-state-cells", NULL))
> +		if (of_property_present(local_node, "#qcom,smem-state-cells"))
>  			break;
>  	}
>  	if (!local_node) {



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