From 7a0bbe64d8ec87e07179fe6124dc8a177b5abd3e Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 14 Aug 2015 16:19:34 +0200 Subject: [PATCH] sunxi: axp221: Allow specifying dcdc2 voltage via Kconfig Allow specifying the axp221 dcdc2 voltage via Kconfig, this is necessary because on some boards the 1.2V default does not work reliable. Signed-off-by: Hans de Goede Acked-by: Ian Campbell --- board/sunxi/board.c | 2 +- drivers/power/Kconfig | 9 +++++++++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/board/sunxi/board.c b/board/sunxi/board.c index f85e825..680523a 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -437,7 +437,7 @@ void sunxi_board_init(void) #ifdef CONFIG_AXP221_POWER power_failed = axp221_init(); power_failed |= axp221_set_dcdc1(CONFIG_AXP221_DCDC1_VOLT); - power_failed |= axp221_set_dcdc2(1200); /* A31:VDD-GPU, A23:VDD-SYS */ + power_failed |= axp221_set_dcdc2(CONFIG_AXP221_DCDC2_VOLT); power_failed |= axp221_set_dcdc3(1200); /* VDD-CPU */ #ifdef CONFIG_MACH_SUN6I power_failed |= axp221_set_dcdc4(1200); /* A31:VDD-SYS */ diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 23cdd71..df5e373 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -22,6 +22,15 @@ config AXP221_DCDC1_VOLT things like GPIO-s, sdcard interfaces, etc. On most boards this is undervolted to 3.0V to safe battery. +config AXP221_DCDC2_VOLT + int "axp221 dcdc2 voltage" + depends on AXP221_POWER + default 1200 + ---help--- + Set the voltage (mV) to program the axp221 dcdc2 at, set to 0 to + disable dcdc2. On A31 boards this is typically used for VDD-GPU, + on A23/A33 for VDD-SYS, this should normally be set to 1.2V. + config AXP221_DLDO1_VOLT int "axp221 dldo1 voltage" depends on AXP221_POWER -- 2.7.4