| From c0a11a29c12ed10a9922b3a7972ad7ddc6ce9898 Mon Sep 17 00:00:00 2001 |
| From: Guennadi Liakhovetski <g.liakhovetski@gmx.de> |
| Date: Thu, 27 Jun 2013 11:47:58 +0200 |
| Subject: ARM: shmobile: ape6evm: add CPUFreq support |
| |
| This patch adds OPPs to the CA15 DT node and a max8973 DT node to support |
| clock and voltage scaling, using the cpufreq-cpu0 CPUFreq driver. |
| |
| Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> |
| Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| (cherry picked from commit 463a2432a435ea3eda4714626f231b7b22f0ac3d) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| arch/arm/boot/dts/r8a73a4-ape6evm.dts | 22 ++++++++++++++++++++++ |
| 1 file changed, 22 insertions(+) |
| |
| diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm.dts b/arch/arm/boot/dts/r8a73a4-ape6evm.dts |
| index f603c694..e657a9db 100644 |
| --- a/arch/arm/boot/dts/r8a73a4-ape6evm.dts |
| +++ b/arch/arm/boot/dts/r8a73a4-ape6evm.dts |
| @@ -50,3 +50,25 @@ |
| }; |
| }; |
| }; |
| + |
| +&i2c5 { |
| + vdd_dvfs: max8973@1b { |
| + compatible = "maxim,max8973"; |
| + reg = <0x1b>; |
| + |
| + regulator-min-microvolt = <935000>; |
| + regulator-max-microvolt = <1200000>; |
| + regulator-boot-on; |
| + regulator-always-on; |
| + }; |
| +}; |
| + |
| +&cpu0 { |
| + cpu0-supply = <&vdd_dvfs>; |
| + operating-points = < |
| + /* kHz uV */ |
| + 1950000 1115000 |
| + 1462500 995000 |
| + >; |
| + voltage-tolerance = <1>; /* 1% */ |
| +}; |
| -- |
| 1.8.4.3.gca3854a |
| |
