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Subject: Re: [Letux-kernel] [PATCH 2/2] DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
From:   "H. Nikolaus Schaller" <hns@goldelico.com>
In-Reply-To: <20190920172947.51c1fdec@aktux>
Date:   Fri, 20 Sep 2019 17:50:06 +0200
Cc:     Discussions about the Letux Kernel <letux-kernel@openphoenux.org>,
        Tony Lindgren <tony@atomide.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Rob Herring <robh@kernel.org>,
        Linux-OMAP <linux-omap@vger.kernel.org>,
        devicetree <devicetree@vger.kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        stable <stable@vger.kernel.org>,
        linux-spi <linux-spi@vger.kernel.org>,
        Mark Brown <broonie@kernel.org>,
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To:     Andreas Kemnade <andreas@kemnade.info>
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> Am 20.09.2019 um 17:29 schrieb Andreas Kemnade <andreas@kemnade.info>:
>=20
> On Fri, 20 Sep 2019 16:54:18 +0200
> "H. Nikolaus Schaller" <hns@goldelico.com> wrote:
>=20
>>> Am 20.09.2019 um 16:20 schrieb Tony Lindgren <tony@atomide.com>:
>>>=20
>>> * H. Nikolaus Schaller <hns@goldelico.com> [190920 09:19]: =20
>>>>> Am 20.09.2019 um 10:55 schrieb Linus Walleij =
<linus.walleij@linaro.org>:
>>>>> I suggest to go both way:
>>>>> apply this oneliner and tag for stable so that GTA04 works
>>>>> again.
>>>>>=20
>>>>> Then for the next kernel think about a possible more abitious
>>>>> whitelist solution and after adding that remove *all* =
"spi-cs-high"
>>>>> flags from all device trees in the kernel after fixing them
>>>>> all up. =20
>>>>=20
>>>> Ok, that looks like a viable path. =20
>>>=20
>>> Please repost the oneline so people can ack easily. At least
>>> I've already lost track of this thread. =20
>>=20
>> It is all here:
>>=20
>> https://patchwork.kernel.org/patch/11035253/
>>=20
> It is the full one (incl. documentation), not the oneline and does not
> apply.

Looks as if it was sitting too long in the queue and linux-next has =
changed
the basis in the meantime, while v5.3 has not yet.

Documentation/devicetree/bindings/spi/spi-bus.txt -> spi-controller.yaml

So it should still apply for v5.3.1 and earlier and we need both =
versions.
One for stable and one for linux-next. I don't know how to handle such =
cases.

BR,
Nikolaus