linux-kernel - [PATCH 2/6] ARM: dts: tegra: apalis-tk1: activate pwm pin muxing for pwm3

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Date:   Sat, 10 Feb 2018 02:38:02 +0100
From:   Marcel Ziswiler <marcel@...wiler.com>
To:     linux-tegra@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/6] ARM: dts: tegra: apalis-tk1: activate pwm pin muxing for pwm3

From: Marcel Ziswiler <marcel.ziswiler@...adex.com>

Activate PWM pin muxing for Apalis PWM3. Note that the same PWM3 is
already active on pu6 being Apalis BKL1_PWM as well. Therefore exporting
that one for raw sysfs access will fail and one has to revert to using
the pwm backlight.

Downstream commit 668ddb921800 ("apalis-tk1: activate pwm pin muxing for
pwm3").

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

---

 arch/arm/boot/dts/tegra124-apalis.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/tegra124-apalis.dtsi b/arch/arm/boot/dts/tegra124-apalis.dtsi
index be45b6753916..7fbaaf221029 100644
--- a/arch/arm/boot/dts/tegra124-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra124-apalis.dtsi
@@ -453,12 +453,12 @@
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 				nvidia,enable-input = <TEGRA_PIN_DISABLE>;
 			};
-			/* PWM3 active on pu6 being Apalis BKL1_PWM */
+			/* PWM3 active on pu6 being Apalis BKL1_PWM as well */
 			ph3 {
 				nvidia,pins = "ph3";
-				nvidia,function = "gmi";
-				nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
-				nvidia,tristate = <TEGRA_PIN_ENABLE>;
+				nvidia,function = "pwm3";
+				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 				nvidia,enable-input = <TEGRA_PIN_DISABLE>;
 			};
 
-- 
2.14.3