From: Martin Kepplinger <martin.kepplinger@puri.sm>
To: martin.kepplinger@puri.sm
Cc: devicetree@vger.kernel.org, festevam@gmail.com,
kernel@pengutronix.de, kernel@puri.sm, krzk@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org,
robh@kernel.org, shawnguo@kernel.org,
Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Subject: [PATCH v2 2/3] arm64: dts: imx8mq-librem5-r3: Mark buck3 as always on
Date: Mon, 15 Mar 2021 09:35:30 +0100 [thread overview]
Message-ID: <20210315083531.3743183-3-martin.kepplinger@puri.sm> (raw)
In-Reply-To: <20210315083531.3743183-1-martin.kepplinger@puri.sm>
From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Commit 99e71c029213 ("arm64: dts: imx8mq-librem5: Don't mark buck3 as always on")
removed always-on marking from GPU regulator, which is great for power
saving - however it introduces additional i2c0 traffic which can be deadly
for devices from the Dogwood batch.
To workaround the i2c0 shutdown issue on Dogwood, this commit marks
buck3 as always-on again - but only for Dogwood (r3).
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
index 0d38327043f8..cd3c3edd48fa 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
@@ -28,6 +28,10 @@ &bq25895 {
ti,termination-current = <144000>; /* uA */
};
+&buck3_reg {
+ regulator-always-on;
+};
+
&proximity {
proximity-near-level = <25>;
};
--
2.30.1
next prev parent reply other threads:[~2021-03-15 8:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-11 12:02 [PATCH 0/3] Librem 5 phone dts fixes Martin Kepplinger
2021-03-11 12:02 ` [PATCH 1/3] arm64: dts: imx8mq-librem5: Hog the correct gpio Martin Kepplinger
2021-03-11 12:02 ` [PATCH 2/3] arm64: dts: imx8mq-librem5-r3: Mark buck3 as always on Martin Kepplinger
2021-03-15 7:24 ` Shawn Guo
2021-03-11 12:02 ` [PATCH 3/3] arm64: defconfig: Enable the Hantro decoder Martin Kepplinger
2021-03-15 8:35 ` [PATCH v2 0/3] Librem 5 phone dts fixes Martin Kepplinger
2021-03-15 8:35 ` [PATCH v2 1/3] arm64: dts: imx8mq-librem5: Hog the correct gpio Martin Kepplinger
2021-03-15 8:35 ` Martin Kepplinger [this message]
2021-03-15 8:35 ` [PATCH v2 3/3] arm64: defconfig: Enable the Hantro decoder Martin Kepplinger
2021-03-17 7:59 ` [PATCH v2 0/3] Librem 5 phone dts fixes 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=20210315083531.3743183-3-martin.kepplinger@puri.sm \
--to=martin.kepplinger@puri.sm \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=kernel@pengutronix.de \
--cc=kernel@puri.sm \
--cc=krzk@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=phone-devel@vger.kernel.org \
--cc=robh@kernel.org \
--cc=sebastian.krzyszkowiak@puri.sm \
--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 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 NNTP newsgroup(s).