arm64: dts: freescale: imx8mp-skov: operate SoC in nominal mode

To reduce heat generation, the Skov i.MX8MP boards should run in nominal
drive mode with a VDD_SOC voltage of 850 mV.

At this operating point, not all frequencies that are achievable with
overdrive mode are possible, so import imx8mp-nominal.dtsi to clock down
the clocks.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
index ec7857db7bf02d60b3993ee223a55d413b783d52..b5e34e9d5a9085ff3404ae9c2cde1f74b9bc0c8c 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
 
 #include "imx8mp.dtsi"
+#include "imx8mp-nominal.dtsi"
 
 #include <dt-bindings/leds/common.h>
 
@@ -255,8 +256,8 @@
                regulators {
                        reg_vdd_soc: BUCK1 {
                                regulator-name = "VDD_SOC";
-                               regulator-min-microvolt = <600000>;
-                               regulator-max-microvolt = <2187500>;
+                               regulator-min-microvolt = <850000>;
+                               regulator-max-microvolt = <850000>;
                                vin-supply = <&reg_5v_p>;
                                regulator-boot-on;
                                regulator-always-on;