linux-kernel - Re: [PATCH v2 0/7] gpio / ACPI: convert users to gpiod_* and drop acpi

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Date:	Fri, 22 Nov 2013 13:41:35 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	linux-acpi@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Chris Ball <cjb@...top.org>,
	Johannes Berg <johannes@...solutions.net>,
	Rhyland Klein <rklein@...dia.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexandre Courbot <acourbot@...dia.com>,
	Mathias Nyman <mathias.nyman@...ux.intel.com>,
	Rob Landley <rob@...dley.net>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/7] gpio / ACPI: convert users to gpiod_* and drop acpi_gpio.h

On Friday, November 22, 2013 02:14:27 PM Mika Westerberg wrote:
> Hi all,
> 
> Now that the mainline kernel has full ACPI support for the GPIO descriptor
> interface we can get rid of ACPI specific GPIO functions in favor of GPIO
> descriptor (gpiod_*) interfaces.
> 
> This series first converts the existing two users to this interface and
> then modifies gpiolib and gpiolib-acpi so that the ACPI functions are only
> called internally in drivers/gpio. We then remove the acpi_gpio.h and
> require all users to user gpiod_* interfaces.
> 
> This is second version of the series. Changes to the previous [1]:
>  * paz00 is passing the lookup table so that we don't need to have gpio
>    conversion function in rfkill-gpio.c anymore.
>  * Corrected sdhci-acpi.c to pass con_id and added call to
>    gpiod_direction_input().
> 
> I suppose it would make sense to merge the whole series via GPIO or ACPI
> trees because there's a dependency that the first two patches need to be
> applied before last three. Otherwise the drivers in question fail to
> compile.
> 
> [1] https://lkml.org/lkml/2013/11/21/317
> 
> Heikki Krogerus (3):
>   net: rfkill: gpio: convert to descriptor-based GPIO interface
>   ARM: tegra: add gpiod_lookup table for paz00
>   net: rfkill: gpio: remove gpio conversion support
> 
> Mika Westerberg (4):
>   mmc: sdhci-acpi: covert to use GPIO descriptor API
>   gpio / ACPI: register to ACPI events automatically
>   gpio / ACPI: get rid of acpi_gpio.h
>   Documentation / ACPI: update to GPIO descriptor API
> 
>  Documentation/acpi/enumeration.txt | 36 ++++--------------
>  arch/arm/mach-tegra/board-paz00.c  |  9 ++++-
>  drivers/gpio/gpiolib-acpi.c        | 20 +++++++---
>  drivers/gpio/gpiolib.c             |  5 ++-
>  drivers/gpio/gpiolib.h             | 46 +++++++++++++++++++++++
>  drivers/mmc/host/sdhci-acpi.c      | 26 ++++++-------
>  drivers/pinctrl/pinctrl-baytrail.c |  4 --
>  include/linux/acpi_gpio.h          | 51 -------------------------
>  net/rfkill/rfkill-gpio.c           | 77 +++++++++++++++++---------------------
>  9 files changed, 125 insertions(+), 149 deletions(-)
>  create mode 100644 drivers/gpio/gpiolib.h
>  delete mode 100644 include/linux/acpi_gpio.h

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

for the ACPI-related material in this series.

Thanks,
Rafael

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