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Message-Id: <20191219183214.727870934@linuxfoundation.org>
Date: Thu, 19 Dec 2019 19:31:23 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Jon Hunter <jonathanh@...dia.com>,
Thierry Reding <treding@...dia.com>
Subject: [PATCH 4.9 001/199] arm64: tegra: Fix active-low warning for Jetson TX1 regulator
From: Jon Hunter <jonathanh@...dia.com>
commit 1e5e929c009559bd7e898ac8e17a5d01037cb057 upstream.
Commit 34993594181d ("arm64: tegra: Enable HDMI on Jetson TX1")
added a regulator for HDMI on the Jetson TX1 platform. This regulator
has an active high enable, but the GPIO specifier for enabling the
regulator incorrectly defines it as active-low. This causes the
following warning to occur on boot ...
WARNING KERN regulator@10 GPIO handle specifies active low - ignored
The fixed-regulator binding does not use the active-low flag from the
gpio specifier and purely relies of the presence of the
'enable-active-high' property to determine if it is active high or low
(if this property is omitted). Fix this warning by setting the GPIO
to active-high in the GPIO specifier which aligns with the presense of
the 'enable-active-high' property.
Fixes: 34993594181d ("arm64: tegra: Enable HDMI on Jetson TX1")
Signed-off-by: Jon Hunter <jonathanh@...dia.com>
Signed-off-by: Thierry Reding <treding@...dia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
@@ -1583,7 +1583,7 @@
regulator-name = "VDD_HDMI_5V0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
- gpio = <&exp1 12 GPIO_ACTIVE_LOW>;
+ gpio = <&exp1 12 GPIO_ACTIVE_HIGH>;
enable-active-high;
vin-supply = <&vdd_5v0_sys>;
};
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