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Message-ID: <656bf349-38bf-44b7-936c-58f424613a49@luigi311.com>
Date: Mon, 15 Apr 2024 10:27:28 -0600
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Subject: Re: [PATCH v4 24/25] media:i2c: imx258: Use v4l2_link_freq_to_bitmap
 helper
To: Tommaso Merciai <tomm.merciai@gmail.com>
Cc: linux-media@vger.kernel.org, dave.stevenson@raspberrypi.com,
 jacopo.mondi@ideasonboard.com, mchehab@kernel.org, robh@kernel.org,
 krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shawnguo@kernel.org,
 s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com,
 sakari.ailus@linux.intel.com, devicetree@vger.kernel.org,
 imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
 linux-kernel@vger.kernel.org, pavel@ucw.cz, phone-devel@vger.kernel.org
References: <20240414203503.18402-1-git@luigi311.com>
 <20240414203503.18402-25-git@luigi311.com>
 <Zh1FUQOt9n/tO3er@tom-HP-ZBook-Fury-15-G7-Mobile-Workstation>
Content-Language: en-US
From: Luis Garcia <git@luigi311.com>
In-Reply-To: <Zh1FUQOt9n/tO3er@tom-HP-ZBook-Fury-15-G7-Mobile-Workstation>
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On 4/15/24 09:18, Tommaso Merciai wrote:
> Hi Luis,
> 
> On Sun, Apr 14, 2024 at 02:35:02PM -0600, git@luigi311.com wrote:
>> From: Luis Garcia <git@luigi311.com>
>>
>> Use the v4l2_link_freq_to_bitmap() helper to figure out which
>> driver-supported link freq can be used on a given system.
>>
>> Signed-off-by: Luis Garcia <git@luigi311.com>
>> Reviewed-by: Pavel Machek <pavel@ucw.cz>
>> ---
>>  drivers/media/i2c/imx258.c | 12 ++++++++++++
>>  1 file changed, 12 insertions(+)
>>
>> diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
>> index 5de71cb7c1ae..65846dff775e 100644
>> --- a/drivers/media/i2c/imx258.c
>> +++ b/drivers/media/i2c/imx258.c
>> @@ -693,6 +693,7 @@ struct imx258 {
>>  	/* Current mode */
>>  	const struct imx258_mode *cur_mode;
>>  
>> +	unsigned long link_freq_bitmap;
>>  	const struct imx258_link_freq_config *link_freq_configs;
>>  	const s64 *link_freq_menu_items;
>>  	unsigned int lane_mode_idx;
>> @@ -1552,6 +1553,17 @@ static int imx258_probe(struct i2c_client *client)
>>  		return ret;
>>  	}
>>  
>> +	ret = v4l2_link_freq_to_bitmap(&client->dev,
>> +				       ep.link_frequencies,
>> +				       ep.nr_of_link_frequencies,
>> +				       imx258->link_freq_menu_items,
>> +				       ARRAY_SIZE(link_freq_menu_items_19_2),
>> +				       &imx258->link_freq_bitmap);
>> +	if (ret) {
>> +		dev_err(&client->dev, "Link frequency not supported\n");
>> +		goto error_endpoint_free;
>> +	}
>> +
>>  	/* Get number of data lanes */
>>  	switch (ep.bus.mipi_csi2.num_data_lanes) {
>>  	case 2:
> 
> Looks good to me.
> 
> ps:
> Maybe a good plan for the future would be to use: dev_err_probe
> (instead of dev_err into probe function)
> 
> But this I think is somenthing for next improvements. :)
> 
> Thanks & Regards,
> Tommaso
> 

Perfect, can i go ahead and add in your reviewed by looks like
you didnt add it here.

>> -- 
>> 2.44.0
>>
>>