From 5546ea0e468f989427dce8d7953dc668f3c8ab64 Mon Sep 17 00:00:00 2001 From: Frank Wunderlich Date: Tue, 2 Jun 2020 15:16:10 +0200 Subject: [PATCH] dts64: mt7622: enable all pwm http://forum.banana-pi.org/t/bpi-r64-pwm-support/11140/13 based on https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/drivers/pinctrl/mediatek/pinctrl-mt7622.c?h=linux-5.4.y#n401 pwm1 (pins 9+11 on gpio-header on bpi-r64): cd /sys/class/pwm/pwmchip0 echo "0" > export cd pwm0 echo 10000 > period echo 5000 > duty_cycle #half brightness echo 1 > enable echo 1000 > duty_cycle #darker ~ 1/10 mt7622 only supports 6 pwm-channels so drop pwm7 --- .../boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts index 1cc4dcb0008c..ad5b1592182d 100644 --- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts +++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts @@ -414,10 +414,15 @@ }; }; - pwm7_pins: pwm1-2-pins { + pwm_pins: pwm-pins { mux { function = "pwm"; - groups = "pwm_ch7_2"; + groups = "pwm_ch1_0", /* mt7622_pwm_ch1_0_pins[] = { 51, }; */ + "pwm_ch2_0", /* mt7622_pwm_ch2_0_pins[] = { 52, }; */ + "pwm_ch3_2", /* mt7622_pwm_ch3_2_pins[] = { 97, }; */ + "pwm_ch4_1", /* mt7622_pwm_ch4_1_pins[] = { 67, }; */ + "pwm_ch5_0", /* mt7622_pwm_ch5_0_pins[] = { 68, }; */ + "pwm_ch6_0"; /* mt7622_pwm_ch6_0_pins[] = { 69, }; */ }; }; @@ -537,7 +542,7 @@ &pwm { pinctrl-names = "default"; - pinctrl-0 = <&pwm7_pins>; + pinctrl-0 = <&pwm_pins>; status = "okay"; };