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Message-ID: <e9d23080-3916-f8ff-e179-4572d02c57b0@traphandler.com>
Date:   Thu, 22 Jun 2023 19:49:12 +0200
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Subject: Re: [PATCH v9 5/5] leds: Add a multicolor LED driver to group
 monochromatic LEDs
To:     Lee Jones <lee@kernel.org>
CC:     <pavel@ucw.cz>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <linux-leds@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
References: <20230616095746.872220-1-jjhiblot@traphandler.com>
 <20230616095746.872220-6-jjhiblot@traphandler.com>
 <20230621193321.GU10378@google.com>
Content-Language: en-US
From:   Jean-Jacques Hiblot <jjhiblot@traphandler.com>
In-Reply-To: <20230621193321.GU10378@google.com>
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On 21/06/2023 21:33, Lee Jones wrote:
> On Fri, 16 Jun 2023, Jean-Jacques Hiblot wrote:
> 
>>   create mode 100644 drivers/leds/rgb/leds-group-multicolor.c
> 
> Sorry to do this too you, but there are too many nits that I can't pass by.
That's alright. I'll fix them in the next (hopefully last) round
> 
>> +		/* Restore sysfs access when the multicolor LED is released */
> 

> Out of interest, why are we doing this?
To prevent the user to play with the individual LEDs of the group, their 
sysfs interface is disabled (read-only). The interface must be 
re-enabled when the group is destroyed.
> 
>> +		devm_add_action_or_reset(dev, restore_sysfs_access, led_cdev);
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +static const struct of_device_id of_led_group_multicolor_match[] = {
> 
> "leds"
> 
>> +	{ .compatible = "leds-group-multicolor" },
>> +	{}
>> +};
>> +MODULE_DEVICE_TABLE(of, of_led_group_multicolor_match);
>> +
>> +static struct platform_driver led_group_multicolor_driver = {
> 
> "leds"
> 
>> +	.probe		= led_mcg_probe,
>> +	.driver		= {
>> +		.name	= "leds_group_multicolor",
>> +		.of_match_table = of_led_group_multicolor_match,
>> +	}
>> +};
>> +module_platform_driver(led_group_multicolor_driver);
>> +
>> +MODULE_AUTHOR("Jean-Jacques Hiblot <jjhiblot@traphandler.com>");
>> +MODULE_DESCRIPTION("LEDs group multicolor driver");
>> +MODULE_LICENSE("GPL");
>> +MODULE_ALIAS("platform:leds-group-multicolor");
>> -- 
>> 2.34.1
>>
>