Re: [PATCH v3] backlight: pwm_bl: Switch to full GPIO descriptor

From: Lee Jones <lee.jones@linaro.org>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>,
	Jingoo Han <jingoohan1@gmail.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	dri-devel@lists.freedesktop.org, Guan Xuetao <gxt@pku.edu.cn>
Subject: Re: [PATCH v3] backlight: pwm_bl: Switch to full GPIO descriptor
Date: Mon, 24 Feb 2020 10:23:32 +0000	[thread overview]
Message-ID: <20200224102332.GM3494@dell> (raw)
In-Reply-To: <20200210101546.287565-1-linus.walleij@linaro.org>

On Mon, 10 Feb 2020, Linus Walleij wrote:

> The PWM backlight still supports passing a enable GPIO line as
> platform data using the legacy <linux/gpio.h> API.
> 
> It turns out that ever board using this mechanism except one
> is pass .enable_gpio = -1. So we drop all these cargo-culted -1's
> from all instances of this platform data in the kernel.
> 
> The remaning board, Palm TC, is converted to pass a machine
> descriptior table with the "enable" GPIO instead, and delete the
> platform data entry for enable_gpio and the code handling it
> and things should work smoothly with the new API.
> 
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: Guan Xuetao <gxt@pku.edu.cn>
> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Are we waiting on anyone else?

> ---
> ChangeLog v2->v3:
> - Collect Robert's ACK.
> ChangeLog v1->v2:
> - Located a missing removal of .enable_gpio in the Palm TC
>   board file, pointed out by Daniel.
> - Grepped to ascertain there is not a single instance of
>   the string "enable_gpio" in the affected board files.
> ---
>  arch/arm/mach-pxa/cm-x300.c               |  1 -
>  arch/arm/mach-pxa/colibri-pxa270-income.c |  1 -
>  arch/arm/mach-pxa/ezx.c                   |  1 -
>  arch/arm/mach-pxa/hx4700.c                |  1 -
>  arch/arm/mach-pxa/lpd270.c                |  1 -
>  arch/arm/mach-pxa/magician.c              |  1 -
>  arch/arm/mach-pxa/mainstone.c             |  1 -
>  arch/arm/mach-pxa/mioa701.c               |  1 -
>  arch/arm/mach-pxa/palm27x.c               |  1 -
>  arch/arm/mach-pxa/palmtc.c                | 11 ++++++++++-
>  arch/arm/mach-pxa/palmte2.c               |  1 -
>  arch/arm/mach-pxa/pcm990-baseboard.c      |  1 -
>  arch/arm/mach-pxa/tavorevb.c              |  2 --
>  arch/arm/mach-pxa/viper.c                 |  1 -
>  arch/arm/mach-pxa/z2.c                    |  2 --
>  arch/arm/mach-pxa/zylonite.c              |  1 -
>  arch/arm/mach-s3c24xx/mach-h1940.c        |  1 -
>  arch/arm/mach-s3c24xx/mach-rx1950.c       |  1 -
>  arch/arm/mach-s3c64xx/dev-backlight.c     |  3 ---
>  arch/arm/mach-s3c64xx/mach-crag6410.c     |  1 -
>  arch/arm/mach-s3c64xx/mach-hmt.c          |  1 -
>  arch/arm/mach-s3c64xx/mach-smartq.c       |  1 -
>  arch/arm/mach-s3c64xx/mach-smdk6410.c     |  2 +-
>  arch/unicore32/kernel/puv3-nb0916.c       |  1 -
>  drivers/video/backlight/pwm_bl.c          | 19 -------------------
>  include/linux/pwm_backlight.h             |  2 --
>  26 files changed, 11 insertions(+), 49 deletions(-)

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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