b167421e55
Add the latest linux available from https://github.com/armbian/build commit de58ac1faac92724c6449db12c22affaeb003875, tag: sunxi-5.3, alongside all the patches that it comes with. Signed-off-by: Vicentiu Galanopulo <vicentiu@balena.io>
66 lines
2.1 KiB
Diff
66 lines
2.1 KiB
Diff
From 747a078b6546e1bd51aa994a4b4da8d2a7b16882 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Myl=C3=A8ne=20Josserand?=
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<mylene.josserand@free-electrons.com>
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Date: Thu, 6 Jul 2017 10:57:55 +0200
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Subject: [PATCH 52/82] ARM: dts: sun8i-a83t-tbs-a711: Add powerup/down support
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for the 3G modem
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The modem needs tree gpios to be powered-up:
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- PL10 = reset
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- PL8 = On/Off
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- PL9 = vbat
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Because of that, the PL9 corresponds to the regulator's gpio whereas
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the PL8 (on/off) will be a power-gpio of the power sequence.
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Thanks to that, the modem is powered up:
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# lsusb
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Bus 001 Device 004: ID 19d2:ffeb
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Signed-off-by: Ondrej Jirman <megous@megous.com>
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Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
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---
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arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 17 ++++++++++++++++-
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1 file changed, 16 insertions(+), 1 deletion(-)
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diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
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index b0a94cf13740..f22da26557f2 100644
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--- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
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+++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
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@@ -142,8 +142,10 @@
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regulator-name = "vmain";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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- gpio = <&r_pio 0 9 GPIO_ACTIVE_HIGH>;
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+ gpio = <&r_pio 0 9 GPIO_ACTIVE_HIGH>; /* PL9 */
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enable-active-high;
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+ //megi: See modem for comments
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+ regulator-always-on;
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vin-supply = <®_vbat>;
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};
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@@ -159,6 +161,19 @@
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clock-names = "ext_clock";
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};
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+ modem {
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+ compatible = "custom,power-manager";
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+ //megi: switching Q5 MOSFET probably leads to brownouts on
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+ //VBAT due to larger capacities on VMAIN. Only use PL8 to
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+ //enable/disable the modem
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+ //power-supply = <®_vmain>;
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+ enable-gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
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+ reset-gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
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+ wakeup-gpios = <&r_pio 0 11 GPIO_ACTIVE_HIGH>; /* PL11 */
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+ reset-duration-ms = <5>;
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+ char-device-name = "pwr-modem";
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+ };
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+
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gps {
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compatible = "custom,power-manager";
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power-supply = <®_gps>;
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--
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2.20.1
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