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Message-ID: <78fdbb28-4133-0165-69ff-a0e568cd84fe@ideasonboard.com>
Date:   Mon, 19 Jun 2023 11:52:19 +0300
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Subject: Re: [PATCH v14 13/18] media: i2c: ds90ub953: Use
 v4l2_fwnode_endpoint_parse()
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To:     Andy Shevchenko <andriy.shevchenko@intel.com>
Cc:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
        Luca Ceresoli <luca.ceresoli@bootlin.com>,
        Matti Vaittinen <Matti.Vaittinen@fi.rohmeurope.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Wolfram Sang <wsa@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Peter Rosin <peda@axentia.se>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Michael Tretter <m.tretter@pengutronix.de>,
        Hans Verkuil <hverkuil@xs4all.nl>,
        Mike Pagano <mpagano@gentoo.org>,
        =?UTF-8?Q?Krzysztof_Ha=c5=82asa?= <khalasa@piap.pl>,
        Marek Vasut <marex@denx.de>,
        Satish Nagireddy <satish.nagireddy@getcruise.com>
References: <20230616135922.442979-1-tomi.valkeinen@ideasonboard.com>
 <20230616135922.442979-14-tomi.valkeinen@ideasonboard.com>
 <ZIxwjebnV/1JaoXt@smile.fi.intel.com>
From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
In-Reply-To: <ZIxwjebnV/1JaoXt@smile.fi.intel.com>
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On 16/06/2023 17:24, Andy Shevchenko wrote:
> On Fri, Jun 16, 2023 at 04:59:17PM +0300, Tomi Valkeinen wrote:
>> Use v4l2_fwnode_endpoint_parse() to parse the sink endpoint parameters.
> 
>> +	nlanes = vep.bus.mipi_csi2.num_data_lanes;
>>   
> 
> I would also drop this blank line now.

Ok.

>> -	if (ret != 1 && ret != 2 && ret != 4)
>> +	if (nlanes != 1 && nlanes != 2 && nlanes != 4)
> 
> Isn't the following cleaner?
> 
> 	if (!is_power_of_2(nlanes) || nlanes > 4)

No, I don't think so... The current one is more human-readable.

>>   		return dev_err_probe(dev, -EINVAL,
>> -				     "bad number of data-lanes: %d\n", ret);
>> +				     "bad number of data-lanes: %d\n", nlanes);
> 

  Tomi