linux-kernel - [PATCH V2] ARM: tegra: Populate OPP table for Tegra20 Ventana

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Message-ID: <20201112125210.214517-1-jonathanh@nvidia.com>
Date:   Thu, 12 Nov 2020 12:52:10 +0000
From:   Jon Hunter <jonathanh@...dia.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Jon Hunter <jonathanh@...dia.com>,
        <stable@...r.kernel.org>
Subject: [PATCH V2] ARM: tegra: Populate OPP table for Tegra20 Ventana

Commit 9ce274630495 ("cpufreq: tegra20: Use generic cpufreq-dt driver
(Tegra30 supported now)") update the Tegra20 CPUFREQ driver to use the
generic CPUFREQ device-tree driver. Since this change CPUFREQ support
on the Tegra20 Ventana platform has been broken because the necessary
device-tree nodes with the operating point information are not populated
for this platform. Fix this by updating device-tree for Venata to
include the operating point informration for Tegra20.

Fixes: 9ce274630495 ("cpufreq: tegra20: Use generic cpufreq-dt driver (Tegra30 supported now)")
Cc: stable@...r.kernel.org

Signed-off-by: Jon Hunter <jonathanh@...dia.com>
---
Changes since V1:
- Remove unneeded 'cpu0' phandle

 arch/arm/boot/dts/tegra20-ventana.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index b158771ac0b7..1b2a0dcd929a 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -3,6 +3,7 @@
 
 #include <dt-bindings/input/input.h>
 #include "tegra20.dtsi"
+#include "tegra20-cpu-opp.dtsi"
 
 / {
 	model = "NVIDIA Tegra20 Ventana evaluation board";
@@ -592,6 +593,16 @@ clk32k_in: clock@0 {
 		#clock-cells = <0>;
 	};
 
+	cpus {
+		cpu@0 {
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+
+		cpu@1 {
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
-- 
2.25.1