linux-kernel - RE: [PATCH] of: property: fix #nvmem-cell-cells parsing

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Date:   Wed, 11 Jan 2023 02:45:18 +0000
From:   Peng Fan <peng.fan@....com>
To:     Michael Walle <michael@...le.cc>, Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Robert Marko <robimarko@...il.com>,
        Alexander Stein <alexander.stein@...tq-group.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Aisheng Dong <aisheng.dong@....com>
Subject: RE: [PATCH] of: property: fix #nvmem-cell-cells parsing

> Subject: [PATCH] of: property: fix #nvmem-cell-cells parsing
> 
> Commit 67b8497f005f ("of: property: make #.*-cells optional for simple
> props") claims to make the cells-name property optional for simple
> properties, but changed the code for the wrong property, i.e. for
> DEFINE_SUFFIX_PROP(). Fix that.
> 
> Fixes: 67b8497f005f ("of: property: make #.*-cells optional for simple
> props")
> Reported-by: Peng Fan <peng.fan@....com>
> Signed-off-by: Michael Walle <michael@...le.cc>
> Tested-by: Robert Marko <robimarko@...il.com>

Tested-by: Peng Fan <peng.fan@....com>

> ---
>  drivers/of/property.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/of/property.c b/drivers/of/property.c index
> 8d9ba20a8f90..95b838185b2f 100644
> --- a/drivers/of/property.c
> +++ b/drivers/of/property.c
> @@ -1202,8 +1202,8 @@ static struct device_node
> *parse_prop_cells(struct device_node *np,
>  	if (strcmp(prop_name, list_name))
>  		return NULL;
> 
> -	if (of_parse_phandle_with_args(np, list_name, cells_name, index,
> -				       &sup_args))
> +	if (__of_parse_phandle_with_args(np, list_name, cells_name, 0,
> index,
> +					 &sup_args))
>  		return NULL;
> 
>  	return sup_args.np;
> @@ -1256,8 +1256,8 @@ static struct device_node
> *parse_suffix_prop_cells(struct device_node *np,
>  	if (strcmp_suffix(prop_name, suffix))
>  		return NULL;
> 
> -	if (__of_parse_phandle_with_args(np, prop_name, cells_name, 0,
> index,
> -					 &sup_args))
> +	if (of_parse_phandle_with_args(np, prop_name, cells_name, index,
> +				       &sup_args))
>  		return NULL;
> 
>  	return sup_args.np;
> --
> 2.30.2