linux-kernel - [PATCH v5 4/6] arm64: dts: ti: k3-am62p5-sk: add 1.4ghz opp entry

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Message-ID: <20240924-ti-cpufreq-fixes-v5-v5-4-cbe16b9ddb1b@ti.com>
Date: Tue, 24 Sep 2024 15:20:44 +0530
From: Dhruva Gole <d-gole@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Rafael
 J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
        Andrew Davis
	<afd@...com>, Bryan Brattlof <bb@...com>,
        Dhruva Gole <d-gole@...com>
Subject: [PATCH v5 4/6] arm64: dts: ti: k3-am62p5-sk: add 1.4ghz opp entry

From: Bryan Brattlof <bb@...com>

The AM62Px reference board is capable of supplying 0v85 to the VDD_CORE
which allows the Cortex-A53s to operate at 1.4GHz according to chapter
6.6 of the SoC's data sheet[0] . Append the 1.4Ghz entry to the OPP
table to enable this frequency

[0] https://www.ti.com/lit/ds/symlink/am62p-q1.pdf

Signed-off-by: Bryan Brattlof <bb@...com>
---
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 3efa12bb72546291e2fda79695edf577bbb134a1..7f3dc39e12bc9ca4a746ff092f946b84a36404b3 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -128,6 +128,15 @@ led-0 {
 		};
 	};
 
+	opp-table {
+		/* Requires VDD_CORE at 0v85 */
+		opp-1400000000 {
+			opp-hz = /bits/ 64 <1400000000>;
+			opp-supported-hw = <0x01 0x0004>;
+			clock-latency-ns = <6000000>;
+		};
+	};
+
 	tlv320_mclk: clk-0 {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";

-- 
2.34.1