Messages in this thread Patch in this message | | | From | Martin Kepplinger <> | Subject | [PATCH 2/3] arm64: dts: imx8mq-librem5-r3: Mark buck3 as always on | Date | Thu, 11 Mar 2021 13:02:58 +0100 |
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From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Commit 66d3f246d79f ("arm64: dts: 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
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