Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH 6/8] mfd: max77714: Add driver for Maxim MAX77714 PMIC
To:     Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        linux-kernel@vger.kernel.org
Cc:     Lee Jones <lee.jones@linaro.org>, Rob Herring <robh+dt@kernel.org>,
        Alessandro Zummo <a.zummo@towertech.it>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Wim Van Sebroeck <wim@linux-watchdog.org>,
        Guenter Roeck <linux@roeck-us.net>, devicetree@vger.kernel.org,
        linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org,
        Chiwoong Byun <woong.byun@samsung.com>,
        Laxman Dewangan <ldewangan@nvidia.com>
References: <20211011155615.257529-1-luca@lucaceresoli.net>
 <20211011155615.257529-7-luca@lucaceresoli.net>
 <b2355acf-94a5-1acf-122b-d661c6d9bb1b@canonical.com>
From:   Luca Ceresoli <luca@lucaceresoli.net>
Message-ID: <5236720c-96b0-3e18-e08f-a5dde982eab5@lucaceresoli.net>
Date:   Wed, 13 Oct 2021 23:39:32 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.13.0
MIME-Version: 1.0
In-Reply-To: <b2355acf-94a5-1acf-122b-d661c6d9bb1b@canonical.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

Hi,

On 12/10/21 10:32, Krzysztof Kozlowski wrote:
> On 11/10/2021 17:56, Luca Ceresoli wrote:
>> Add a simple driver for the Maxim MAX77714 PMIC, supporting RTC and
>> watchdog only.
>>
>> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
>> ---
>>  MAINTAINERS                  |   2 +
>>  drivers/mfd/Kconfig          |  14 ++++
>>  drivers/mfd/Makefile         |   1 +
>>  drivers/mfd/max77714.c       | 151 +++++++++++++++++++++++++++++++++++
>>  include/linux/mfd/max77714.h |  68 ++++++++++++++++
>>  5 files changed, 236 insertions(+)
>>  create mode 100644 drivers/mfd/max77714.c
>>  create mode 100644 include/linux/mfd/max77714.h
>>
> 
> (...)
> 
>> +
>> +static const struct of_device_id max77714_dt_match[] = {
>> +	{ .compatible = "maxim,max77714" },
>> +	{},
>> +};
> 
> When converting to module - don't forget the MODULE_DEVICE_TABLE
> 
>> +
>> +static struct i2c_driver max77714_driver = {
>> +	.driver = {
>> +		.name = "max77714",
>> +		.of_match_table = of_match_ptr(max77714_dt_match),
> 
> Kbuild robot pointed it out - of_matc_ptr should not be needed, even for
> compile testing without OF.

I wonder whether it's better to add '#ifdef CONFIG_OF / #endif' around
the struct of_device_id declaration. I think it's what most drivers do,
even though I tend to prefer not adding #ifdefs making code less clean
only for COMPILE_TESTING.

-- 
Luca