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sunxi: axp221: Allow specifying dcdc2 voltage via Kconfig

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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 <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2015-08-14 16:19:34 +02:00
parent f875bbb491
commit 7a0bbe64d8
2 changed files with 10 additions and 1 deletions
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2
board/sunxi/board.c
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@ -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 */

9
drivers/power/Kconfig
View file

@ -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