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Message-ID: <b9ed4f2f-5d41-6041-0215-c3ff11843198@st.com>
Date:   Wed, 11 Jan 2017 14:39:06 +0100
From:   Amelie DELAUNAY <amelie.delaunay@...com>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
CC:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        Russell King <linux@...linux.org.uk>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "rtc-linux@...glegroups.com" <rtc-linux@...glegroups.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Gabriel FERNANDEZ <gabriel.fernandez@...com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCHv4 3/8] rtc: add STM32 RTC driver

Hi Corentin,

Thanks for reviewing,

On 01/11/2017 02:04 PM, Corentin Labbe wrote:
> On Wed, Jan 11, 2017 at 01:48:25PM +0100, Amelie Delaunay wrote:
>> This patch adds support for the STM32 RTC.
>>
>> Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
>> ---
>>  drivers/rtc/Kconfig     |  11 +
>>  drivers/rtc/Makefile    |   1 +
>>  drivers/rtc/rtc-stm32.c | 727 ++++++++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 739 insertions(+)
>>  create mode 100644 drivers/rtc/rtc-stm32.c
>
> [...]
>> +/* STM32_PWR_CR */
>> +#define PWR_CR				0x00
>> +/* STM32_PWR_CR bit field */
>> +#define PWR_CR_DBP			BIT(8)
>> +
>> +static struct regmap *dbp;
>
> Hello
>
> Why using a global static struct ?
> You could alloc a private structure in probe for storing it and use platform_set_drvdata()
>
This is to stay closer to how this backup domain protection is managed 
in clk-stm32f4 driver, but I realize that I haven't the same 
constraints. I'll move this struct in my stm32_rtc private structure.

> Regards
>

Regards

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