linux-kernel - [PATCH v8 23/26] MIPS: GCW0: Move clocksource to TCU channel 2

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Date:   Wed, 12 Dec 2018 23:13:17 +0100
From:   Paul Cercueil <paul@...pouillou.net>
To:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Jonathan Corbet <corbet@....net>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Ezequiel Garcia <ezequiel@...labora.co.uk>,
        PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>,
        linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-clk@...r.kernel.org, od@...c.me,
        Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v8 23/26] MIPS: GCW0: Move clocksource to TCU channel 2

The TCU channel 1, which is the default for the clocksource, is used as
PWM on the GCW Zero as it drives the backlight. Therefore we must use a
different TCU channel for the clocksource.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---

Notes:
     v8: New patch

 arch/mips/boot/dts/ingenic/gcw0.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/mips/boot/dts/ingenic/gcw0.dts b/arch/mips/boot/dts/ingenic/gcw0.dts
index 35f0291e8d38..8abab14eb852 100644
--- a/arch/mips/boot/dts/ingenic/gcw0.dts
+++ b/arch/mips/boot/dts/ingenic/gcw0.dts
@@ -60,3 +60,14 @@
 	/* The WiFi module is connected to the UHC. */
 	status = "okay";
 };
+
+&pwm {
+	/* Channels 1 and 3-7 are for PWM use */
+	reg = <0x50 0x10>, <0x70 0x50>;
+};
+
+&clocksource {
+	/* Use channel 2 for the clocksource */
+	reg = <0x60 0x10>;
+	clocks = <&tcu TCU_CLK_TIMER2>;
+};
-- 
2.11.0