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sunxi: Implement poweroff support for axp818 pmic

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Adds poweroff support for axp818 pmic.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Chen-Yu Tsai 2016-05-02 10:28:14 +08:00 committed by Hans de Goede
parent 9850e20148
commit 511992695d
3 changed files with 15 additions and 0 deletions
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1
drivers/power/Kconfig
View File

@ -44,6 +44,7 @@ config AXP221_POWER
config AXP818_POWER
boolean "axp818 pmic support"
depends on MACH_SUN8I_A83T
select CMD_POWEROFF
---help---
Say y here to enable support for the axp818 pmic found on
A83T dev board.

11
drivers/power/axp818.c
View File

@ -255,3 +255,14 @@ int axp_init(void)
return 0;
}
int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
pmic_bus_write(AXP818_SHUTDOWN, AXP818_SHUTDOWN_POWEROFF);
/* infinite loop during shutdown */
while (1) {}
/* not reached */
return 0;
}

3
include/axp818.h
View File

@ -55,6 +55,9 @@
#define AXP818_ALDO2_CTRL 0x29
#define AXP818_ALDO3_CTRL 0x2a
#define AXP818_SHUTDOWN 0x32
#define AXP818_SHUTDOWN_POWEROFF (1 << 7)
/* For axp_gpio.c */
#define AXP_POWER_STATUS 0x00
#define AXP_POWER_STATUS_VBUS_PRESENT (1 << 5)