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Date:   Thu,  5 Apr 2018 18:05:16 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Peter Ujfalusi <peter.ujfalusi@...com>,
        BenoƮt Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     letux-kernel@...nphoenux.org,
        linux-omap <linux-omap@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel@...r.kernel.org,
        "H. Nikolaus Schaller" <hns@...delico.com>
Subject: [PATCH] ARM: dts: omap3-gta04: Add fixed 26MHz clock as fck for twl

The board uses 26MHz oscillator for the twl4030 HFCLK.
This way we will not depend on the bootloader to configure the
CFG_BOOT:HFCLK_FREQ

Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
 arch/arm/boot/dts/omap3-gta04.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 4170be70460e..ac830b917776 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -30,6 +30,13 @@
 		display0 = &lcd;
 	};
 
+	/* fixed 26MHz oscillator */
+	hfclk_26m: oscillator {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <26000000>;
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
@@ -312,6 +319,9 @@
 		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
 		interrupt-parent = <&intc>;
 
+		clocks = <&hfclk_26m>;
+		clock-names = "fck";
+
 		twl_audio: audio {
 			compatible = "ti,twl4030-audio";
 			ti,enable-vibra = <1>;
-- 
2.12.2

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