* [PATCH] ARM: dts: rockchip: Add missing cpu operating points for rk3288-tinker
@ 2019-12-02 15:35 Jack Chen
2019-12-13 10:04 ` Heiko Stuebner
0 siblings, 1 reply; 2+ messages in thread
From: Jack Chen @ 2019-12-02 15:35 UTC (permalink / raw)
To: heiko
Cc: mark.rutland, devicetree, linux-kernel, linux-rockchip, robh+dt,
Jack Chen, linux-arm-kernel
From: Jack Chen <redchenjs@live.com>
The Tinker Board / S devices use a special chip variant called rk3288-c
and use different operating points with a higher max frequency.
So add the missing operating points for Tinker Board / S devices, also
increase the vdd_cpu regulator-max-microvolt to 1400000 uV so that the
cpu can operate at 1.8 GHz.
Signed-off-by: Jack Chen <redchenjs@live.com>
---
arch/arm/boot/dts/rk3288-tinker.dtsi | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi
index 81e4e953d4a4..09e83b3d5e7d 100644
--- a/arch/arm/boot/dts/rk3288-tinker.dtsi
+++ b/arch/arm/boot/dts/rk3288-tinker.dtsi
@@ -113,6 +113,17 @@
cpu0-supply = <&vdd_cpu>;
};
+&cpu_opp_table {
+ opp-1704000000 {
+ opp-hz = /bits/ 64 <1704000000>;
+ opp-microvolt = <1350000>;
+ };
+ opp-1800000000 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1400000>;
+ };
+};
+
&gmac {
assigned-clocks = <&cru SCLK_MAC>;
assigned-clock-parents = <&ext_gmac>;
@@ -175,7 +186,7 @@
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <750000>;
- regulator-max-microvolt = <1350000>;
+ regulator-max-microvolt = <1400000>;
regulator-name = "vdd_arm";
regulator-ramp-delay = <6000>;
regulator-state-mem {
--
2.24.0
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: dts: rockchip: Add missing cpu operating points for rk3288-tinker
2019-12-02 15:35 [PATCH] ARM: dts: rockchip: Add missing cpu operating points for rk3288-tinker Jack Chen
@ 2019-12-13 10:04 ` Heiko Stuebner
0 siblings, 0 replies; 2+ messages in thread
From: Heiko Stuebner @ 2019-12-13 10:04 UTC (permalink / raw)
To: Jack Chen
Cc: mark.rutland, devicetree, linux-kernel, linux-rockchip, robh+dt,
Jack Chen, linux-arm-kernel
Am Montag, 2. Dezember 2019, 16:35:40 CET schrieb Jack Chen:
> From: Jack Chen <redchenjs@live.com>
>
> The Tinker Board / S devices use a special chip variant called rk3288-c
> and use different operating points with a higher max frequency.
>
> So add the missing operating points for Tinker Board / S devices, also
> increase the vdd_cpu regulator-max-microvolt to 1400000 uV so that the
> cpu can operate at 1.8 GHz.
>
> Signed-off-by: Jack Chen <redchenjs@live.com>
applied for 5.6
Thanks
Heiko
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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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2019-12-13 10:04 ` Heiko Stuebner
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