62 lines
1.9 KiB
Diff
62 lines
1.9 KiB
Diff
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From ba2119cc1dadd814c24218aa20e27d0d0ef5f7fd 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 020/464] ARM: dts: sun8i-a83t-tbs-a711: Add powerup/down
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support 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 <megi@xff.cz>
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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/allwinner/sun8i-a83t-tbs-a711.dts | 13 ++++++++++++-
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1 file changed, 12 insertions(+), 1 deletion(-)
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diff --git a/arch/arm/boot/dts/allwinner/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/allwinner/sun8i-a83t-tbs-a711.dts
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index 27fadde82be7..2929af321ac8 100644
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--- a/arch/arm/boot/dts/allwinner/sun8i-a83t-tbs-a711.dts
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+++ b/arch/arm/boot/dts/allwinner/sun8i-a83t-tbs-a711.dts
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@@ -123,7 +123,7 @@ reg_vmain: reg-vmain {
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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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vin-supply = <®_vbat>;
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};
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@@ -139,6 +139,17 @@ wifi_pwrseq: wifi_pwrseq {
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clocks = <&ac100_rtc 1>;
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clock-names = "ext_clock";
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};
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+
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+ modem {
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+ compatible = "zte,mg3732";
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+ char-device-name = "modem-power";
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+
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+ power-supply = <®_vmain>;
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+
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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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+ };
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};
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&cpu0 {
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--
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2.34.1
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