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* [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2
@ 2021-09-15 12:03 ` Heiko Thiery
  0 siblings, 0 replies; 24+ messages in thread
From: Heiko Thiery @ 2021-09-15 12:03 UTC (permalink / raw)
  To: devicetree, linux-arm-kernel, linux-kernel
  Cc: Krzysztof Kozlowski, Michael Walle, Joakim Zhang, Shengjiu Wang,
	Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
	Fabio Estevam, NXP Linux Team, Heiko Thiery, Frieder Schrempf

The buck2 output of the PMIC is the VDD core voltage of the cpu.
Switching off this will poweroff the CPU. Add the 'regulator-always-on'
property to avoid this.

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
---
 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
index d0456daefda8..9db9b90bf2bc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
@@ -102,6 +102,7 @@ reg_vdd_arm: BUCK2 {
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <950000>;
 				regulator-boot-on;
+				regulator-always-on;
 				regulator-ramp-delay = <3125>;
 				nxp,dvs-run-voltage = <950000>;
 				nxp,dvs-standby-voltage = <850000>;
-- 
2.30.0


^ permalink raw reply	[flat|nested] 24+ messages in thread

end of thread, other threads:[~2021-10-04 12:41 UTC | newest]

Thread overview: 24+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-15 12:03 [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2 Heiko Thiery
2021-09-15 12:03 ` Heiko Thiery
2021-09-15 12:05 ` Michael Walle
2021-09-15 12:05   ` Michael Walle
2021-09-15 12:09   ` Frieder Schrempf
2021-09-15 12:09     ` Frieder Schrempf
2021-09-17  7:28     ` Heiko Thiery
2021-09-17  7:28       ` Heiko Thiery
2021-09-17  8:21       ` Michael Walle
2021-09-17  8:21         ` Michael Walle
2021-09-17  8:51         ` Heiko Thiery
2021-09-17  8:51           ` Heiko Thiery
2021-09-17 11:44       ` Lucas Stach
2021-09-17 11:44         ` Lucas Stach
2021-09-17 16:10         ` Heiko Thiery
2021-09-17 16:10           ` Heiko Thiery
2021-09-20  7:31           ` Frieder Schrempf
2021-09-20  7:31             ` Frieder Schrempf
2021-09-20  7:43             ` Michael Walle
2021-09-20  7:43               ` Michael Walle
2021-09-20  8:10               ` Lucas Stach
2021-09-20  8:10                 ` Lucas Stach
2021-10-04 12:39 ` Shawn Guo
2021-10-04 12:39   ` Shawn Guo

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