linux-kernel - Re: [Letux-kernel] [PATCH 2/2] DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again

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Date:   Tue, 17 Sep 2019 00:52:39 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Discussions about the Letux Kernel <letux-kernel@...nphoenux.org>,
        Rob Herring <robh@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree <devicetree@...r.kernel.org>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        Tony Lindgren <tony@...mide.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>,
        linux-spi <linux-spi@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>,
        Benoît Cousson <bcousson@...libre.com>
Subject: Re: [Letux-kernel] [PATCH 2/2] DTS: ARM: gta04: introduce legacy
 spi-cs-high to make display work again

On Mon, Sep 16, 2019 at 12:59 PM H. Nikolaus Schaller <hns@...delico.com> wrote:

> ping.
>
> Device omap3-gta04 is neither working with v5.3 nor linux-next quite a while and we need a solution.

Can't we just apply the last part of the patch in this thread:

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi
b/arch/arm/boot/dts/omap3-gta04.dtsi
index 9a9a29fe88ec..47bab8e1040e 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -124,6 +124,7 @@
                        spi-max-frequency = <100000>;
                        spi-cpol;
                        spi-cpha;
+                       spi-cs-high;

                        backlight= <&backlight>;
                        label = "lcd";


Surely this fixes the problem?

Yours,
Linus Walleij