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authorSebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>2021-03-15 11:35:30 +0300
committerShawn Guo <shawnguo@kernel.org>2021-03-29 04:49:57 +0300
commita362b0cc94d476b097ba0ff466958c1d4e27e219 (patch)
treec2f7617891ba0ab3f62c9f1a52fcacc83b87c839 /arch
parent7fffadcf7218f17deed66b57dbbc37487f442964 (diff)
downloadlinux-a362b0cc94d476b097ba0ff466958c1d4e27e219.tar.xz
arm64: dts: imx8mq-librem5-r3: Mark buck3 as always on
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> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts4
1 files changed, 4 insertions, 0 deletions
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 @@
ti,termination-current = <144000>; /* uA */
};
+&buck3_reg {
+ regulator-always-on;
+};
+
&proximity {
proximity-near-level = <25>;
};