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| author | Paul Kocialkowski <contact@paulk.fr> | 2015-03-22 18:07:11 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-04-15 16:17:17 +0200 |
| commit | 1a59ecff804ffd96ab11001f722b8311296e6e5b (patch) | |
| tree | 1425069c410c2b8188341a669bdfecfa8bb5df1f /drivers/power | |
| parent | 5eaacb4340f7be10cf83e076529747fa70c85907 (diff) | |
| download | u-boot-imx-1a59ecff804ffd96ab11001f722b8311296e6e5b.zip u-boot-imx-1a59ecff804ffd96ab11001f722b8311296e6e5b.tar.gz u-boot-imx-1a59ecff804ffd96ab11001f722b8311296e6e5b.tar.bz2 | |
power: axp209: VBUS detection support
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>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/axp209.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/power/axp209.c b/drivers/power/axp209.c index f8c9b77..29d5464 100644 --- a/drivers/power/axp209.c +++ b/drivers/power/axp209.c @@ -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 { |