linux-kernel - Re: [PATCH] Revert "ARM: dts: rockchip: add startup delay to rk3288-veyron panel-regulators"

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Message-ID: <1641883.xsURkgBn4i@phil>
Date:   Fri, 16 Aug 2019 13:28:25 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     enric.balletbo@...labora.com, mka@...omium.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] Revert "ARM: dts: rockchip: add startup delay to rk3288-veyron panel-regulators"

Am Donnerstag, 20. Juni 2019, 20:20:56 CEST schrieb Douglas Anderson:
> This reverts commit 1f45e8c6d0161f044d679f242fe7514e2625af4a.
> 
> This 100 ms mystery delay is not on downstream kernels and no longer
> seems needed on upstream kernels either [1].  Presumably something in the
> meantime has made things better.  A few possibilities for patches that
> have landed in the meantime that could have made this better are
> commit 3157694d8c7f ("pwm-backlight: Add support for PWM delays
> proprieties."), commit 5fb5caee92ba ("pwm-backlight: Enable/disable
> the PWM before/after LCD enable toggle."), and commit 6d5922dd0d60
> ("ARM: dts: rockchip: set PWM delay backlight settings for Veyron")
> 
> Let's revert and get our 100 ms back.
> 
> [1] https://lkml.kernel.org/r/2226970.BAPq4liE1j@diego
> 
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

I've rebased the change on top of Matthias' veyron display reorganization
and applied it for 5.4

Thanks
Heiko