linux-kernel - Re: [PATCH] mtd: nand: qcom: Use of_property_present() for testing DT property presence

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Message-ID: <20230310145545.GE6838@thinkpad>
Date:   Fri, 10 Mar 2023 20:25:45 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        devicetree@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: nand: qcom: Use of_property_present() for testing
 DT property presence

On Fri, Mar 10, 2023 at 08:47:15AM -0600, 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@...nel.org>

Reviewed-by: Manivannan Sadhasivam <mani@...nel.org>

Thanks,
Mani

> ---
>  drivers/mtd/nand/raw/qcom_nandc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
> index 198a44794d2d..6b52ed8c6178 100644
> --- a/drivers/mtd/nand/raw/qcom_nandc.c
> +++ b/drivers/mtd/nand/raw/qcom_nandc.c
> @@ -3054,7 +3054,7 @@ static int qcom_nand_host_parse_boot_partitions(struct qcom_nand_controller *nan
>  	struct device *dev = nandc->dev;
>  	int partitions_count, i, j, ret;
>  
> -	if (!of_find_property(dn, "qcom,boot-partitions", NULL))
> +	if (!of_property_present(dn, "qcom,boot-partitions"))
>  		return 0;
>  
>  	partitions_count = of_property_count_u32_elems(dn, "qcom,boot-partitions");
> -- 
> 2.39.2
> 

-- 
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