diff mbox

[1/3] ARM: dts: imx6: RDU2: bump SoC/PU operating points by 25mV

Message ID 20180412131556.11073-1-l.stach@pengutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Lucas Stach April 12, 2018, 1:15 p.m. UTC 
This bumps the SoC/PU domain operating points by 25mV, giving a total
of 75mV margin to the minimum required voltages. This gets rid of
brown-outs seen due to voltage drop-out on the board.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

Comments

Chris Healy April 12, 2018, 2:14 p.m. UTC | #1 
Tested-by: Chris Healy <cphealy@gmail.com>

On Thu, Apr 12, 2018 at 6:15 AM, Lucas Stach <l.stach@pengutronix.de> wrote:
> This bumps the SoC/PU domain operating points by 25mV, giving a total
> of 75mV margin to the minimum required voltages. This gets rid of
> brown-outs seen due to voltage drop-out on the board.
>
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> ---
>  arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
> index 72f52fcecee1..4bc14b8e9a66 100644
> --- a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
> @@ -263,6 +263,17 @@
>         };
>  };
>
> +&cpu0 {
> +       fsl,soc-operating-points = <
> +               /* ARM kHz  SOC-PU uV */
> +               1200000 1300000
> +               996000  1275000
> +               852000  1275000
> +               792000  1200000
> +               396000  1200000
> +       >;
> +};
> +
>  &reg_arm {
>         vin-supply = <&sw1a_reg>;
>  };
> --
> 2.16.3
>
Shawn Guo April 23, 2018, 9:11 a.m. UTC | #2 
On Thu, Apr 12, 2018 at 03:15:54PM +0200, Lucas Stach wrote:
> This bumps the SoC/PU domain operating points by 25mV, giving a total
> of 75mV margin to the minimum required voltages. This gets rid of
> brown-outs seen due to voltage drop-out on the board.
> 
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

Applied all, thanks.
diff mbox

Patch

diff --git a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
index 72f52fcecee1..4bc14b8e9a66 100644
--- a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
@@ -263,6 +263,17 @@ 
 	};
 };
 
+&cpu0 {
+	fsl,soc-operating-points = <
+		/* ARM kHz  SOC-PU uV */
+		1200000 1300000
+		996000	1275000
+		852000	1275000
+		792000	1200000
+		396000	1200000
+	>;
+};
+
 &reg_arm {
 	vin-supply = <&sw1a_reg>;
 };