linux-kernel - Re: [PATCH 3/5] phy: miphy28lp: Provide support for the MiPHY28lp Generic PHY

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Date:	Thu, 14 Aug 2014 14:37:06 +0200
From:	Gabriel Fernandez <gabriel.fernandez@...aro.org>
To:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:	Gabriel FERNANDEZ <gabriel.fernandez@...com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Maxime Coquelin <maxime.coquelin@...com>,
	Patrice Chotard <patrice.chotard@...com>,
	Russell King <linux@....linux.org.uk>,
	Kishon Vijay Abraham I <kishon@...com>,
	Grant Likely <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	alexandre torgue <alexandre.torgue@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	"kernel@...inux.com" <kernel@...inux.com>
Subject: Re: [PATCH 3/5] phy: miphy28lp: Provide support for the MiPHY28lp
 Generic PHY

Hi Srini,


On 14 August 2014 14:15, Srinivas Kandagatla
<srinivas.kandagatla@...aro.org> wrote:
> Hi Gabi,
>
> I did not review the full patchset but this function caught my attention..
>
>
>> +};
>> +
>> +static int miphy28lp_get_ressource_byname(struct device_node *child,
>> +                                         char *name, struct resource
>> *res)
>> +{
>
>
> s/miphy28lp_get_ressource_byname/miphy28lp_get_resource_byname
ok

>
>
>> +       int index, ret = 0, count = 0;
>> +       int reg_tuple_size;
>> +       const __be32 *p;
>> +
>> +       reg_tuple_size = (of_n_addr_cells(child) +
>> +                       of_n_size_cells(child)) * sizeof(u32);
>> +
>> +       p = of_get_property(child, "reg", &count);
>> +       if (count % reg_tuple_size != 0)
>> +               ret = -EINVAL;
>> +
>> +       count /= reg_tuple_size;
>> +
>> +       for (index = 0; index < count; index++) {
>> +               const char *rname = NULL;
>> +
>> +               ret = of_property_read_string_index(child, "reg-names",
>> +                                                   index, &rname);
>> +               if (!strcmp(name, rname))
>> +                       return of_address_to_resource(child, index, res);
>> +       }
>> +
>> +       return 1;
>
> This function looks bit complicated, can't we just use:
>
>         index = of_property_match_string(np, "reg-names", rname);
>         if (index < 0)
>                 return -ENODEV;
>
>         return of_address_to_resource(child, index, res);

Indeed it's a little bit simpler... :)

>
>
>
> --srini

Thanks a lot Srini

Best Regards

Gabriel
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