linux-kernel - Re: [PATCH v5 0/7] backlight: gpio: simplify the driver

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Message-ID: <20191014081220.GK4545@dell>
Date:   Mon, 14 Oct 2019 09:12:20 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Jacopo Mondi <jacopo@...ndi.org>, linux-sh@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-fbdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v5 0/7] backlight: gpio: simplify the driver

On Mon, 07 Oct 2019, Bartosz Golaszewski wrote:

> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> 
> While working on my other series related to gpio-backlight[1] I noticed
> that we could simplify the driver if we made the only user of platform
> data use GPIO lookups and device properties. This series tries to do
> that.
> 
> The first patch adds all necessary data structures to ecovec24. Patch
> 2/7 unifies much of the code for both pdata and non-pdata cases. Patches
> 3-4/7 remove unused platform data fields. Last three patches contain
> additional improvements for the GPIO backlight driver while we're already
> modifying it.
> 
> I don't have access to this HW but hopefully this works. Only compile
> tested.
> 
> [1] https://lkml.org/lkml/2019/6/25/900
> 
> v1 -> v2:
> - rebased on top of v5.3-rc1 and adjusted to the recent changes from Andy
> - added additional two patches with minor improvements
> 
> v2 -> v3:
> - in patch 7/7: used initializers to set values for pdata and dev local vars
> 
> v3 -> v4:
> - rebased on top of v5.4-rc1
> - removed changes that are no longer relevant after commit ec665b756e6f
>   ("backlight: gpio-backlight: Correct initial power state handling")
> - added patch 7/7
> 
> v4 ->V5:
> - in patch 7/7: added a comment replacing the name of the function being
>   pulled into probe()
> 
> Bartosz Golaszewski (7):
>   backlight: gpio: remove unneeded include
>   sh: ecovec24: add additional properties to the backlight device
>   backlight: gpio: simplify the platform data handling
>   sh: ecovec24: don't set unused fields in platform data
>   backlight: gpio: remove unused fields from platform data
>   backlight: gpio: use a helper variable for &pdev->dev
>   backlight: gpio: pull gpio_backlight_initial_power_state() into probe
> 
>  arch/sh/boards/mach-ecovec24/setup.c         |  33 ++++--

I guess we're just waiting for the SH Acks now?

>  drivers/video/backlight/gpio_backlight.c     | 108 +++++--------------
>  include/linux/platform_data/gpio_backlight.h |   3 -
>  3 files changed, 53 insertions(+), 91 deletions(-)
> 

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