arm64: dts: rockchip: correct vqmmc voltage for rk3399 platforms

The vcc_sd or vcc_sdio used for IO voltage for sdmmc and sdio
interface on rk3399 platform have a limitation that it can't be
larger than 3.0v, otherwise it has a potential risk for the chip.
Correct all of them.

Fixes: 171582e00db1 ("arm64: dts: rockchip: add support for firefly-rk3399 board")
Fixes: 2c66fc34e945 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Fixes: 8164a84cca12 ("arm64: dts: rockchip: Add support for rk3399 sapphire SOM")
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index 7fd4bfc..fef8227 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -371,10 +371,10 @@
                                regulator-always-on;
                                regulator-boot-on;
                                regulator-min-microvolt = <1800000>;
-                               regulator-max-microvolt = <3300000>;
+                               regulator-max-microvolt = <3000000>;
                                regulator-state-mem {
                                        regulator-on-in-suspend;
-                                       regulator-suspend-microvolt = <3300000>;
+                                       regulator-suspend-microvolt = <3000000>;
                                };
                        };
 

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 53ff3d1..910628d 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -325,12 +325,12 @@
                        vcc_sd: LDO_REG4 {
                                regulator-name = "vcc_sd";
                                regulator-min-microvolt = <1800000>;
-                               regulator-max-microvolt = <3300000>;
+                               regulator-max-microvolt = <3000000>;
                                regulator-always-on;
                                regulator-boot-on;
                                regulator-state-mem {
                                        regulator-on-in-suspend;
-                                       regulator-suspend-microvolt = <3300000>;
+                                       regulator-suspend-microvolt = <3000000>;
                                };
                        };
 

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index 6c30bb0..0f873c8 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -315,10 +315,10 @@
                                regulator-always-on;
                                regulator-boot-on;
                                regulator-min-microvolt = <1800000>;
-                               regulator-max-microvolt = <3300000>;
+                               regulator-max-microvolt = <3000000>;
                                regulator-state-mem {
                                        regulator-on-in-suspend;
-                                       regulator-suspend-microvolt = <3300000>;
+                                       regulator-suspend-microvolt = <3000000>;
                                };
                        };