From: Fabio Estevam <festevam@gmail.com>
To: shawnguo@kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
marcel.ziswiler@toradex.com, otavio@ossystems.com.br,
Fabio Estevam <festevam@gmail.com>
Subject: [PATCH 2/4] ARM: dts: imx6qdl-apalis: Pass 'io-channel-cells' to the ADC
Date: Fri, 24 Sep 2021 10:46:43 -0300 [thread overview]
Message-ID: <20210924134645.2629481-2-festevam@gmail.com> (raw)
In-Reply-To: <20210924134645.2629481-1-festevam@gmail.com>
The STMPE811 ADC on the Apalis SoM board can be used as a provider
of ADC capabilities to other devices, for example, when a custom
baseboard has an SN74LV4051 analog mux.
Pass the 'io-channel-cells' parameter to indicate such possibility.
While at it, also pass a label for the adc device, so that it can
be referenced in the custom baseboard.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
arch/arm/boot/dts/imx6qdl-apalis.dtsi | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 7c6d9c75d2bf..4092af5f6999 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -330,10 +330,11 @@ stmpe-touchscreen {
st,touch-det-delay = <5>;
};
- stmpe-adc {
+ stmpe_adc: stmpe-adc {
compatible = "st,stmpe-adc";
/* forbid to use ADC channels 3-0 (touch) */
st,norequest-mask = <0x0F>;
+ #io-channel-cells = <1>;
};
};
};
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-09-24 13:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-24 13:46 [PATCH 1/4] ARM: dts: imx6qdl-apalis: Avoid underscore in node name Fabio Estevam
2021-09-24 13:46 ` Fabio Estevam [this message]
2021-09-24 13:46 ` [PATCH 3/4] ARM: dts: imx6qdl-apalis: Add a label for the touchscreen Fabio Estevam
2021-09-24 13:46 ` [PATCH 4/4] ARM: dts: imx6qdl-apalis: Fix typo in ADC comment Fabio Estevam
2021-10-05 5:52 ` [PATCH 1/4] ARM: dts: imx6qdl-apalis: Avoid underscore in node name Shawn Guo
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=20210924134645.2629481-2-festevam@gmail.com \
--to=festevam@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=marcel.ziswiler@toradex.com \
--cc=otavio@ossystems.com.br \
--cc=shawnguo@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.