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From:   Francesco Dolcini <francesco@dolcini.it>
To:     Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>
Cc:     Francesco Dolcini <francesco.dolcini@toradex.com>,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jai Luthra <j-luthra@ti.com>
Subject: [PATCH v3 2/4] arm64: dts: ti: verdin-am62: Set I2S_1 MCLK rate
Date:   Mon,  7 Aug 2023 22:21:57 +0200
Message-Id: <20230807202159.13095-3-francesco@dolcini.it>
In-Reply-To: <20230807202159.13095-1-francesco@dolcini.it>
References: <20230807202159.13095-1-francesco@dolcini.it>
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From: Francesco Dolcini <francesco.dolcini@toradex.com>

Set AUDIO_EXT_REFCLK1, used as I2S_1_MCLK on Verdin AM62 family, to 25MHz
(this is the only valid option according to TI [1]).

[1] https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1188051/am625-audio_ext_refclk1-clock-output---dts-support/4476322#4476322

Reviewed-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index 12dd1d64eac9..5db9ef2dc7e5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -768,6 +768,11 @@ AM62X_MCU_IOPAD(0x0028, PIN_OUTPUT,       0) /* (C5) WKUP_UART0_TXD  */ /* SODIM
 	};
 };
 
+/* VERDIN I2S_1_MCLK */
+&audio_refclk1 {
+	assigned-clock-rates = <25000000>;
+};
+
 &cpsw3g {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rgmii1>;
-- 
2.25.1