linux-kernel - Re: [PATCH v3 04/10] rtc: max77686: Use a driver data struct instead hard-coded values

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Date:	Wed, 27 Jan 2016 10:47:45 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Javier Martinez Canillas <javier@....samsung.com>,
	linux-kernel@...r.kernel.org
Cc:	Kukjin Kim <kgene@...nel.org>, rtc-linux@...glegroups.com,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Laxman Dewangan <ldewangan@...dia.com>,
	linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v3 04/10] rtc: max77686: Use a driver data struct instead
 hard-coded values

On 27.01.2016 04:20, Javier Martinez Canillas wrote:
> The driver has some hard-coded values such as the minimum delay needed
> before a RTC update or the mask used for the sec/min/hour/etc registers.
> 
> Use a data structure that contains these values and pass as driver data
> using the platform device ID table for each device.
> 
> This allows to make the driver's ops callbacks more generic so other RTC
> that are similar but don't have the same values can also be supported.
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> Acked-by: Laxman Dewangan <ldewangan@...dia.com>
> 
> ---
> 
> Changes in v3:
> - Fix max77686 delay. Suggested by Krzysztof Kozlowski.
> - Assign mask to u8 instead of int. Suggested by Krzysztof Kozlowski.
> - Add Laxman Dewangan's Acked-by tag to patch #4.
> 
> Changes in v2:
> - Add a max77686 prefix to rtc_driver_data. Suggested by Krzysztof Kozlowski.
> - Comment about the .delay and .mask fields. Suggested by Krzysztof Kozlowski.
> - Change .mask type to u8. Suggested by Krzysztof Kozlowski.
> - Make .drv_data field const. Suggested by Krzysztof Kozlowski.
> - Don't cast to drop const on .drv_data asign. Suggested by Krzysztof Kozlowski.
> - Use platform_get_device_id() macro. Suggested by Krzysztof Kozlowski.
> 
>  drivers/rtc/rtc-max77686.c | 51 ++++++++++++++++++++++++++++++----------------
>  1 file changed, 34 insertions(+), 17 deletions(-)
> 

Tested on Trats2 (max77686):
Tested-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Best regards,
Krzysztof