linux-kernel - Re: [PATCH] rtc: s5m: Add support for S2MPS13 RTC

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Date:	Thu, 26 Mar 2015 14:11:54 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Alessandro Zummo <a.zummo@...ertech.it>,
	Sangbeom Kim <sbkim73@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: Re: [PATCH] rtc: s5m: Add support for S2MPS13 RTC

On Tue, 24 Mar 2015, Krzysztof Kozlowski wrote:

> The S2MPS13 RTC is almost the same as S2MPS14. The differences when
> updating alarm are:
> 1. Set WUDR+AUDR field instead of WUDR+RUDR.
> 2. Clear the AUDR field later (it is not auto-cleared).
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> ---
>  drivers/rtc/rtc-s5m.c           | 20 +++++++++++++++++++-
>  include/linux/mfd/samsung/rtc.h |  2 ++
>  2 files changed, 21 insertions(+), 1 deletion(-)

[...]

> diff --git a/include/linux/mfd/samsung/rtc.h b/include/linux/mfd/samsung/rtc.h
> index b6401e7661c7..29c30ac36020 100644
> --- a/include/linux/mfd/samsung/rtc.h
> +++ b/include/linux/mfd/samsung/rtc.h
> @@ -105,6 +105,8 @@ enum s2mps_rtc_reg {
>  #define S5M_RTC_UDR_MASK	(1 << S5M_RTC_UDR_SHIFT)
>  #define S2MPS_RTC_WUDR_SHIFT	4
>  #define S2MPS_RTC_WUDR_MASK	(1 << S2MPS_RTC_WUDR_SHIFT)
> +#define S2MPS13_RTC_AUDR_SHIFT	1
> +#define S2MPS13_RTC_AUDR_MASK	(1 << S2MPS13_RTC_AUDR_SHIFT)
>  #define S2MPS_RTC_RUDR_SHIFT	0
>  #define S2MPS_RTC_RUDR_MASK	(1 << S2MPS_RTC_RUDR_SHIFT)
>  #define RTC_TCON_SHIFT		1

Please consider writing these like:

#define S2MPS_RTC_WUDR_MASK	bit(4)
#define S2MPS13_RTC_AUDR_MASK	bit(1)
#define S2MPS_RTC_RUDR_MASK	bit(0)

But for the MFD part of this patch:

Acked-by: Lee Jones <lee.jones@...aro.org>

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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