linux-kernel - Re: [PATCH 00/12] ARM: davinci: da850-evm: remove more legacy GPIO calls

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Message-ID: <20190702100646.q3wgzgacvp67m6xv@holly.lan>
Date:   Tue, 2 Jul 2019 11:06:46 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Sekhar Nori <nsekhar@...com>, Bartosz Golaszewski <brgl@...ev.pl>,
        Kevin Hilman <khilman@...nel.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        David Lechner <david@...hnology.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH 00/12] ARM: davinci: da850-evm: remove more legacy GPIO
 calls

On Tue, Jul 02, 2019 at 07:36:53AM +0100, Lee Jones wrote:
> On Mon, 01 Jul 2019, Sekhar Nori wrote:
> 
> > Hi Lee, Daniel, Jingoo,
> > 
> > On 25/06/19 10:04 PM, Bartosz Golaszewski wrote:
> > > From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> > > 
> > > This is another small step on the path to liberating davinci from legacy
> > > GPIO API calls and shrinking the davinci GPIO driver by not having to
> > > support the base GPIO number anymore.
> > > 
> > > This time we're removing the legacy calls used indirectly by the LCDC
> > > fbdev driver.
> > > 
> > > The first three patches modify the GPIO backlight driver. The first
> > > of them adds the necessary functionality, the other two are just
> > > tweaks and cleanups.
> > 
> > Can you take the first three patches for v5.3 - if its not too late? I
> > think that will make it easy for rest of patches to make into subsequent
> > kernel releases.
> 
> It's already too late in the cycle (-rc7) for that.  I require patches
> of this nature to have a good soak in -next before being merged. There
> shouldn't be an issue with getting them into v5.4 though.

On the other hand I think we did take a patch that did much the same 
thing as patch 1/12 in this series:
https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git/commit/?h=for-backlight-next&id=98b7404eb7d64e55f8fdd419cb3965a8abf0e217

I'm not 100% sure but I think that might allow the patchset to be split
into two that are independent (one for Davinci and one for gpio
backlight improvements).


Daniel.

> 
> > > Next two patches enable the GPIO backlight driver in
> > > davinci_all_defconfig.
> > > 
> > > Patch 6/12 models the backlight GPIO as an actual GPIO backlight device.
> > > 
> > > Patches 7-9 extend the fbdev driver with regulator support and convert
> > > the da850-evm board file to using it.
> > > 
> > > Last three patches are improvements to the da8xx fbdev driver since
> > > we're already touching it in this series.
> > 
> > Thanks,
> > Sekhar
> > 
> 
> -- 
> Lee Jones [李琼斯]
> Linaro Services Technical Lead
> Linaro.org │ Open source software for ARM SoCs
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