linux-kernel - Re: [PATCH v3 04/11] regulator: Introduce tps68470-regulator driver

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Date:   Sun, 10 Oct 2021 12:22:17 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Hans de Goede <hdegoede@...hat.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Mark Gross <markgross@...nel.org>,
        Andy Shevchenko <andy@...radead.org>,
        Wolfram Sang <wsa@...-dreams.de>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Daniel Scally <djrscally@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-i2c@...r.kernel.org,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Kate Hsuan <hpa@...hat.com>, linux-media@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH v3 04/11] regulator: Introduce tps68470-regulator driver

On 10/10/21 11:57 AM, Hans de Goede wrote:
> The TPS68470 PMIC provides Clocks, GPIOs and Regulators. At present in
> the kernel the Regulators and Clocks are controlled by an OpRegion
> driver designed to work with power control methods defined in ACPI, but
> some platforms lack those methods, meaning drivers need to be able to
> consume the resources of these chips through the usual frameworks.
> 
> This commit adds a driver for the regulators provided by the tps68470,
> and is designed to bind to the platform_device registered by the
> intel_skl_int3472 module.
> 
> This is based on this out of tree driver written by Intel:
> https://github.com/intel/linux-intel-lts/blob/4.14/base/drivers/regulator/tps68470-regulator.c
> with various cleanups added.
> 
> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> ---
> Changes in v2:
> - Update the comment on why a subsys_initcall is used to register the drv
> - Make struct regulator_ops const
> ---
>   drivers/regulator/Kconfig              |   9 ++
>   drivers/regulator/Makefile             |   1 +
>   drivers/regulator/tps68470-regulator.c | 193 +++++++++++++++++++++++++
>   3 files changed, 203 insertions(+)
>   create mode 100644 drivers/regulator/tps68470-regulator.c
> 
> diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
> index 4fd13b06231f..d107af5bff6c 100644
> --- a/drivers/regulator/Kconfig
> +++ b/drivers/regulator/Kconfig
> @@ -1339,6 +1339,15 @@ config REGULATOR_TPS65912
>   	help
>   	    This driver supports TPS65912 voltage regulator chip.
>   
> +config REGULATOR_TPS68470
> +	tristate "TI TPS68370 PMIC Regulators Driver"
> +	depends on INTEL_SKL_INT3472
> +	help
> +	  This driver adds support for the TPS68470 PMIC to register
> +	  regulators against the usual framework.
> +
> +	  The module will be called "tps68470-regulator"

End the final sentence with a period (a.k.a. full stop).

-- 
~Randy