linux-kernel - [PATCH 5.10 605/717] ARM: tegra: Populate OPP table for Tegra20 Ventana

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Date:   Mon, 28 Dec 2020 13:50:03 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jon Hunter <jonathanh@...dia.com>,
        Thierry Reding <treding@...dia.com>
Subject: [PATCH 5.10 605/717] ARM: tegra: Populate OPP table for Tegra20 Ventana

From: Jon Hunter <jonathanh@...dia.com>

commit bd7cd7e05a42491469ca19861da44abc3168cf5f upstream.

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>
Signed-off-by: Thierry Reding <treding@...dia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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

--- 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 @@
 		#clock-cells = <0>;
 	};
 
+	cpus {
+		cpu0: cpu@0 {
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+
+		cpu@1 {
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";