* [PATCH] ARM: dts: rockchip: update rk3288-veyron cpu operating points
@ 2016-03-31 21:24 Heiko Stuebner
2016-04-01 0:53 ` Doug Anderson
2016-04-01 16:34 ` Heiko Stuebner
0 siblings, 2 replies; 3+ messages in thread
From: Heiko Stuebner @ 2016-03-31 21:24 UTC (permalink / raw)
To: linux-arm-kernel
The generic operating points specified in rk3288.dtsi are specified by
Rockchip as conservative and for all cases.
In contrast the Veyron ChromeOS devices are supposed to use a special
chip variant often called rk3288-c and use different operating points
in their kernel also including a higher max frequency.
So override the operating points for veyron devices.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm/boot/dts/rk3288-veyron.dtsi | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 274fa87..df7d70d 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -170,6 +170,22 @@
&cpu0 {
cpu0-supply = <&vdd_cpu>;
+ operating-points = <
+ /* KHz uV */
+ 1800000 1400000
+ 1704000 1350000
+ 1608000 1300000
+ 1512000 1250000
+ 1416000 1200000
+ 1200000 1100000
+ 1008000 1050000
+ 816000 1000000
+ 696000 950000
+ 600000 900000
+ 408000 900000
+ 216000 900000
+ 126000 900000
+ >;
};
&emmc {
--
2.1.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] ARM: dts: rockchip: update rk3288-veyron cpu operating points
2016-03-31 21:24 [PATCH] ARM: dts: rockchip: update rk3288-veyron cpu operating points Heiko Stuebner
@ 2016-04-01 0:53 ` Doug Anderson
2016-04-01 16:34 ` Heiko Stuebner
1 sibling, 0 replies; 3+ messages in thread
From: Doug Anderson @ 2016-04-01 0:53 UTC (permalink / raw)
To: linux-arm-kernel
Heiko
On Thu, Mar 31, 2016 at 2:24 PM, Heiko Stuebner <heiko@sntech.de> wrote:
> The generic operating points specified in rk3288.dtsi are specified by
> Rockchip as conservative and for all cases.
>
> In contrast the Veyron ChromeOS devices are supposed to use a special
> chip variant often called rk3288-c and use different operating points
> in their kernel also including a higher max frequency.
>
> So override the operating points for veyron devices.
>
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
> ---
> arch/arm/boot/dts/rk3288-veyron.dtsi | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
Matches the Chrome OS tree.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] ARM: dts: rockchip: update rk3288-veyron cpu operating points
2016-03-31 21:24 [PATCH] ARM: dts: rockchip: update rk3288-veyron cpu operating points Heiko Stuebner
2016-04-01 0:53 ` Doug Anderson
@ 2016-04-01 16:34 ` Heiko Stuebner
1 sibling, 0 replies; 3+ messages in thread
From: Heiko Stuebner @ 2016-04-01 16:34 UTC (permalink / raw)
To: linux-arm-kernel
Am Donnerstag, 31. M?rz 2016, 23:24:43 schrieb Heiko Stuebner:
> The generic operating points specified in rk3288.dtsi are specified by
> Rockchip as conservative and for all cases.
>
> In contrast the Veyron ChromeOS devices are supposed to use a special
> chip variant often called rk3288-c and use different operating points
> in their kernel also including a higher max frequency.
>
> So override the operating points for veyron devices.
>
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
applied to my dts32 branch for 4.7
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-03-31 21:24 [PATCH] ARM: dts: rockchip: update rk3288-veyron cpu operating points Heiko Stuebner
2016-04-01 0:53 ` Doug Anderson
2016-04-01 16:34 ` Heiko Stuebner
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