On Thu, Sep 30, 2021 at 06:02:01PM +0200, Frieder Schrempf wrote:

On 30.09.21 17:56, Frieder Schrempf wrote:

quoted

From: Frieder Schrempf <redacted>

VDD_SOC should be 800 mV in suspend and 850 mV in run mode. VDD_DRAM
should be 950 mV for DDR clock frequencies of 1.5 GHz.

This information is taken from the datasheet and the uboot-imx code.

Signed-off-by: Frieder Schrempf <redacted>

This should also have:

Fixes: 21c4f45b335f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and
baseboards")

$ git log 21c4f45b335f
fatal: ambiguous argument '21c4f45b335f': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'

Shawn

Cc: stable@vger.kernel.org

quoted

---
 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

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 03b3516abd64..b12fb7ce6686 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi

@@ -92,10 +92,12 @@ regulators {
 			reg_vdd_soc: BUCK1 {
 				regulator-name = "buck1";
 				regulator-min-microvolt = <800000>;
-				regulator-max-microvolt = <900000>;
+				regulator-max-microvolt = <850000>;
 				regulator-boot-on;
 				regulator-always-on;
 				regulator-ramp-delay = <3125>;
+				nxp,dvs-run-voltage = <850000>;
+				nxp,dvs-standby-voltage = <800000>;
 			};
 
 			reg_vdd_arm: BUCK2 {

@@ -111,7 +113,7 @@ reg_vdd_arm: BUCK2 {
 			reg_vdd_dram: BUCK3 {
 				regulator-name = "buck3";
 				regulator-min-microvolt = <850000>;
-				regulator-max-microvolt = <900000>;
+				regulator-max-microvolt = <950000>;
 				regulator-boot-on;
 				regulator-always-on;
 			};