From: Linus Walleij <linus.walleij@linaro.org>
To: Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Robert Jarzmik <robert.jarzmik@free.fr>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-input@vger.kernel.org, devicetree@vger.kernel.org,
linux-spi@vger.kernel.org
Subject: Re: [PATCH 3/3] ARM: spitz: Use software nodes for the ADS7846 touchscreen
Date: Thu, 2 May 2024 10:13:44 +0200 [thread overview]
Message-ID: <CACRpkdbY2R_DzCx48OdGBFh6Lgytt_+VN1QK1pRq+9dDB=zw9w@mail.gmail.com> (raw)
In-Reply-To: <20240430-gpio-leds-miscarm-v1-3-9c94d7711f6c@linaro.org>
On Tue, Apr 30, 2024 at 9:04 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> Convert the Spitz to use software nodes for SPI CS and the
> ADS7846 touchscreen following the pattern used in the TI
> platforms.
>
> The Spitz is the only user of the wait_for_sync() callback in
> the platform data, so define that this is a separate GPIO
> in the device tree bindings (previous patch) and handle this
> directly inside the ADS7846 driver instead.
>
> Add some infrastructure to the PXA boardfile common code to
> handle software nodes attached to the SPI bus instead of
> platform data.
>
> The SPI core will investigate the numner of GPIO handles to
> figure out the number of chipselects used on the platform, so
> no explicit encoding of the number of the number of chipselects
> is needed.
>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Andy's patch series makes the Spitz SPI much cleaner to begin
with so I will hold this off and rebase on top of Andy's stuff once
that is in.
Yours,
Linus Walleij
prev parent reply other threads:[~2024-05-02 8:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 7:03 [PATCH 0/3] ARM: Modernize the PXA Spitz a bit Linus Walleij
2024-04-30 7:03 ` [PATCH 1/3] ARM: spitz: Convert Spitz board to GPIO descriptors for LEDs Linus Walleij
2024-04-30 7:03 ` [PATCH 2/3] dt-bindings: ads7846: Add hsync-gpios Linus Walleij
2024-04-30 17:45 ` Conor Dooley
2024-04-30 7:03 ` [PATCH 3/3] ARM: spitz: Use software nodes for the ADS7846 touchscreen Linus Walleij
2024-05-02 8:13 ` Linus Walleij [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CACRpkdbY2R_DzCx48OdGBFh6Lgytt_+VN1QK1pRq+9dDB=zw9w@mail.gmail.com' \
--to=linus.walleij@linaro.org \
--cc=broonie@kernel.org \
--cc=conor+dt@kernel.org \
--cc=daniel@zonque.org \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.torokhov@gmail.com \
--cc=haojian.zhuang@gmail.com \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-input@vger.kernel.org \
--cc=linux-spi@vger.kernel.org \
--cc=robert.jarzmik@free.fr \
--cc=robh@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).