diff mbox series

arm64: dts: imx8mn: Update VDD_ARM 1.2GHz setpoint voltage

Message ID 1587817790-21698-1-git-send-email-Anson.Huang@nxp.com (mailing list archive)
State Mainlined
Commit 8c30e7caac7467a89a69b22d1de7b489aa26b8a8
Headers show
Series arm64: dts: imx8mn: Update VDD_ARM 1.2GHz setpoint voltage | expand

Commit Message

Anson Huang April 25, 2020, 12:29 p.m. UTC 
The latest datasheet Rev. 0.1, 03/2020 removes below constrain:

"If VDD_SOC/GPU/DDR = 0.95V, then VDD_ARM must be >= 0.95V."

So, for 1.2GHz setpoint VDD_ARM can use its typical voltage
directly.

The datasheet can be downloaded from below link:
https://www.nxp.com/docs/en/data-sheet/IMX8MNCEC.pdf

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Shawn Guo April 29, 2020, 3:39 a.m. UTC | #1 
On Sat, Apr 25, 2020 at 08:29:50PM +0800, Anson Huang wrote:
> The latest datasheet Rev. 0.1, 03/2020 removes below constrain:
> 
> "If VDD_SOC/GPU/DDR = 0.95V, then VDD_ARM must be >= 0.95V."
> 
> So, for 1.2GHz setpoint VDD_ARM can use its typical voltage
> directly.
> 
> The datasheet can be downloaded from below link:
> https://www.nxp.com/docs/en/data-sheet/IMX8MNCEC.pdf
> 
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Applied, thanks.
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index fa78f01..de6e2cf 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -121,7 +121,7 @@ 
 
 		opp-1200000000 {
 			opp-hz = /bits/ 64 <1200000000>;
-			opp-microvolt = <950000>;
+			opp-microvolt = <850000>;
 			opp-supported-hw = <0xb00>, <0x7>;
 			clock-latency-ns = <150000>;
 			opp-suspend;