diff mbox series

[V6,07/12] arm64: dts: imx8mn-evk: update vdd_soc dvs voltage

Message ID 20221117095403.1876071-8-peng.fan@oss.nxp.com
State New
Headers
Series arm64: dts: imx8m-evk: misc dts update |

Commit Message

Peng Fan (OSS) Nov. 17, 2022, 9:53 a.m. UTC 
  From: Peng Fan <peng.fan@nxp.com>

Per schematic, BUCK1 is for VDD_SOC&DRAM&PU_0V9. The nxp,dvs-run-voltage
and nxp,dvs-standby-voltage need set for BUCK1, not BUCK2.
BUCK2 is for A53, which is handled by DVFS, so no need dvs property.
nxp,dvs-run-voltage is not needed, since bootloader must configure
voltage to make system boot well.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mn-evk.dts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Marco Felsch Nov. 17, 2022, 10:17 a.m. UTC | #1 
On 22-11-17, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> Per schematic, BUCK1 is for VDD_SOC&DRAM&PU_0V9. The nxp,dvs-run-voltage
> and nxp,dvs-standby-voltage need set for BUCK1, not BUCK2.
> BUCK2 is for A53, which is handled by DVFS, so no need dvs property.
> nxp,dvs-run-voltage is not needed, since bootloader must configure
> voltage to make system boot well.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

Acked-by: Marco Felsch <m.felsch@pengutronix.de>

> ---
>  arch/arm64/boot/dts/freescale/imx8mn-evk.dts | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> index 4eb467df5ba7..4839a962a170 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> @@ -47,6 +47,7 @@ buck1: BUCK1{
>  				regulator-boot-on;
>  				regulator-always-on;
>  				regulator-ramp-delay = <3125>;
> +				nxp,dvs-standby-voltage = <750000>;
>  			};
>  
>  			buck2: BUCK2 {
> @@ -56,8 +57,6 @@ buck2: BUCK2 {
>  				regulator-boot-on;
>  				regulator-always-on;
>  				regulator-ramp-delay = <3125>;
> -				nxp,dvs-run-voltage = <950000>;
> -				nxp,dvs-standby-voltage = <850000>;
>  			};
>  
>  			buck4: BUCK4{
> -- 
> 2.37.1
> 
> 
>
Shawn Guo Nov. 19, 2022, 3:07 a.m. UTC | #2 
On Thu, Nov 17, 2022 at 05:53:58PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> Per schematic, BUCK1 is for VDD_SOC&DRAM&PU_0V9. The nxp,dvs-run-voltage
> and nxp,dvs-standby-voltage need set for BUCK1, not BUCK2.
> BUCK2 is for A53, which is handled by DVFS, so no need dvs property.
> nxp,dvs-run-voltage is not needed, since bootloader must configure
> voltage to make system boot well.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

Applied, thanks!
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
index 4eb467df5ba7..4839a962a170 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
@@ -47,6 +47,7 @@  buck1: BUCK1{
 				regulator-boot-on;
 				regulator-always-on;
 				regulator-ramp-delay = <3125>;
+				nxp,dvs-standby-voltage = <750000>;
 			};
 
 			buck2: BUCK2 {
@@ -56,8 +57,6 @@  buck2: BUCK2 {
 				regulator-boot-on;
 				regulator-always-on;
 				regulator-ramp-delay = <3125>;
-				nxp,dvs-run-voltage = <950000>;
-				nxp,dvs-standby-voltage = <850000>;
 			};
 
 			buck4: BUCK4{