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sunxi: axp209: Disable interrupts when intializing the axp209

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We do not use the axp209 interrupt, and at least in my mini-x (which does not
have a power button) the pwr-button pin and the irq pin are soldered together,
so if the axp209 keeps it irq asserted too long it will see a 10s pwr-button
press and hard power off the board, disabling the irqs fixes this.

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 2015-01-17 16:39:20 +01:00
parent daf22636c2
commit 9dcf68fac8
1 changed files with 13 additions and 1 deletions
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14
drivers/power/axp209.c
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@ -16,6 +16,11 @@ enum axp209_reg {
AXP209_DCDC3_VOLTAGE = 0x27,
AXP209_LDO24_VOLTAGE = 0x28,
AXP209_LDO3_VOLTAGE = 0x29,
AXP209_IRQ_ENABLE1 = 0x40,
AXP209_IRQ_ENABLE2 = 0x41,
AXP209_IRQ_ENABLE3 = 0x42,
AXP209_IRQ_ENABLE4 = 0x43,
AXP209_IRQ_ENABLE5 = 0x44,
AXP209_IRQ_STATUS5 = 0x4c,
AXP209_SHUTDOWN = 0x32,
AXP209_GPIO0_CTRL = 0x90,
@ -143,7 +148,7 @@ int axp209_set_ldo4(int mvolt)
int axp209_init(void)
{
u8 ver;
int rc;
int i, rc;
rc = axp209_read(AXP209_CHIP_VERSION, &ver);
if (rc)
@ -155,6 +160,13 @@ int axp209_init(void)
if (ver != 0x1)
return -1;
/* Mask all interrupts */
for (i = AXP209_IRQ_ENABLE1; i <= AXP209_IRQ_ENABLE5; i++) {
rc = axp209_write(i, 0);
if (rc)
return rc;
}
return 0;
}