linux-kernel - Re: [RFC v1 PATCH 3/6] led: pmic8058: Add PMIC8058 leds driver

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Message-ID: <4CFE4EAC.9000606@metafoo.de>
Date:	Tue, 07 Dec 2010 16:11:40 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Trilok Soni <tsoni@...eaurora.org>
CC:	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	rtc-linux@...glegroups.com, linux-arm-msm@...r.kernel.org,
	Richard Purdie <rpurdie@...ys.net>
Subject: Re: [RFC v1 PATCH 3/6] led: pmic8058: Add PMIC8058 leds driver

On 12/06/2010 02:44 PM, Trilok Soni wrote:
> Hi Peter,
> 
>>
>>>> +
>>>> +/**
>>>> + * struct pmic8058_led - per led data
>>>> + * @name - name of the led
>>>> + * @default_trigger - default trigger which needs to e attached
>>>> + * @max_brightness - maximum brightness level supported by the led
>>>> + * @id - supported led id
>>>> + */
>>>> +struct pmic8058_led {
>>>> +	const char	*name;
>>>> +	const char	*default_trigger;
>>>> +	unsigned	max_brightness;
>>> Should max_brightness not rather be hardcoded in the driver? As far as I can tell it
>>> depend on the hardware and is 4 bits wide for flash and bl leds and 5 bits for the
>>> others.
>>>> +	int		id;
>>>
>>> enum pmic8058_leds instead of int
>>
>> Ack.
>>
>>>> +struct pmic8058_leds_platform_data {
>>>> +	int			num_leds;
>>> size_t
>>
>> Ack.
>>
>>>> +	struct pmic8058_led	*leds;
>>>> +};
>>>
>>>
>>> If max_brightness is hardcoded in the driver you can reuse "struct led_info" and
>>> "struct struct led_platform_data" instead of adding your own structs.
>>
> 
> I couldn't remove these pmic8058_led structure due to the "enum pmic8058_led id" member
> info which I need from every led. This can be removed completely only if I abuse
> the "flags" parameter in struct led_info to pass the led id. Let me know what you think.
> 
> ---Trilok Soni
> 

Hi

I think that would be ok, other drivers seem to do the same.

- Lars
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