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power: axp209: VBUS detection support

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Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Paul Kocialkowski 2015-03-22 18:07:11 +01:00 • committed by Hans de Goede
parent 5eaacb4340
commit 1a59ecff80
1 changed files with 9 additions and 1 deletions
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10
drivers/power/axp209.c
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@ -7,6 +7,7 @@
#include <common.h>
#include <i2c.h>
#include <asm/arch/gpio.h>
#include <axp209.h>
enum axp209_reg {
@ -31,6 +32,7 @@ enum axp209_reg {
};
#define AXP209_POWER_STATUS_ON_BY_DC (1 << 0)
#define AXP209_POWER_STATUS_VBUS_USABLE (1 << 4)
#define AXP209_IRQ5_PEK_UP (1 << 6)
#define AXP209_IRQ5_PEK_DOWN (1 << 5)
@ -205,6 +207,9 @@ static u8 axp209_get_gpio_ctrl_reg(unsigned int pin)
int axp_gpio_direction_input(unsigned int pin)
{
if (pin == SUNXI_GPIO_AXP0_VBUS_DETECT)
return 0;
u8 reg = axp209_get_gpio_ctrl_reg(pin);
/* GPIO3 is "special" */
u8 val = (pin == 3) ? AXP209_GPIO3_INPUT : AXP209_GPIO_INPUT;
@ -232,7 +237,10 @@ int axp_gpio_get_value(unsigned int pin)
u8 val, mask;
int rc;
if (pin == 3) {
if (pin == SUNXI_GPIO_AXP0_VBUS_DETECT) {
rc = axp209_read(AXP209_POWER_STATUS, &val);
mask = AXP209_POWER_STATUS_VBUS_USABLE;
} else if (pin == 3) {
rc = axp209_read(AXP209_GPIO3_CTRL, &val);
mask = 1;
} else {