From: Anand Moon <linux.amoon@gmail.com>
To: Rob Herring <robh+dt@kernel.org>,
Kevin Hilman <khilman@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Neil Armstrong <narmstrong@baylibre.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
Jerome Brunet <jbrunet@baylibre.com>
Subject: [PATCH] arm64: dts: amlogic: odroid-n2: set usb-pwr-en regulator always on
Date: Sun, 16 Feb 2020 20:21:01 +0000 [thread overview]
Message-ID: <20200216202101.2810-1-linux.amoon@gmail.com> (raw)
usb-pwr-en regulator is getting disable after booting, setting
regulator-alway-on help enable the regulator after booting.
[ 31.766097] USB_PWR_EN: disabling
Fixes: c35f6dc5c377 (arm64: dts: meson: Add minimal support for Odroid-N2)
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
Patch generated on top of my earier patch.
[0] https://patchwork.kernel.org/patch/11384531/
[1] https://patchwork.kernel.org/patch/11384533/
Before
[root@alarm ~]# cat /sys/kernel/debug/regulator/regulator_summary | grep USB
USB_PWR_EN 0 1 0 unknown 5000mV 0mA 5000mV 5000mV
After
[root@alarm ~]# cat /sys/kernel/debug/regulator/regulator_summary | grep USB
USB_PWR_EN 1 1 0 unknown 5000mV 0mA 5000mV 5000mV
---
arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
index 23eddff85fe5..938a9e15adfc 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
@@ -177,6 +177,7 @@ usb_pwr_en: regulator-usb_pwr_en {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&vcc_5v>;
+ regulator-always-on;
/* Connected to the microUSB port power enable */
gpio = <&gpio GPIOH_6 GPIO_ACTIVE_HIGH>;
--
2.25.0
next reply other threads:[~2020-02-16 20:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-16 20:21 Anand Moon [this message]
2020-02-17 7:38 ` [PATCH] arm64: dts: amlogic: odroid-n2: set usb-pwr-en regulator always on Jerome Brunet
2020-02-17 8:06 ` Anand Moon
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