diff options
Diffstat (limited to 'drivers/usb/misc')
| -rw-r--r-- | drivers/usb/misc/usb3503.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c index 2e9e100a182e..4b6572a37e87 100644 --- a/drivers/usb/misc/usb3503.c +++ b/drivers/usb/misc/usb3503.c @@ -100,10 +100,13 @@ static int usb3503_clear_bits(struct i2c_client *client, char reg, char req) return 0; } -static int usb3503_reset(int gpio_reset, int state) +static int usb3503_reset(struct usb3503 *hub, int state) { - if (gpio_is_valid(gpio_reset)) - gpio_set_value_cansleep(gpio_reset, state); + if (!state && gpio_is_valid(hub->gpio_connect)) + gpio_set_value_cansleep(hub->gpio_connect, 0); + + if (gpio_is_valid(hub->gpio_reset)) + gpio_set_value_cansleep(hub->gpio_reset, state); /* Wait T_HUBINIT == 4ms for hub logic to stabilize */ if (state) @@ -119,7 +122,7 @@ static int usb3503_switch_mode(struct usb3503 *hub, enum usb3503_mode mode) switch (mode) { case USB3503_MODE_HUB: - usb3503_reset(hub->gpio_reset, 1); + usb3503_reset(hub, 1); /* SP_ILOCK: set connect_n, config_n for config */ err = usb3503_write_register(i2c, USB3503_SP_ILOCK, @@ -156,12 +159,15 @@ static int usb3503_switch_mode(struct usb3503 *hub, enum usb3503_mode mode) goto err_hubmode; } + if (gpio_is_valid(hub->gpio_connect)) + gpio_set_value_cansleep(hub->gpio_connect, 1); + hub->mode = mode; dev_info(&i2c->dev, "switched to HUB mode\n"); break; case USB3503_MODE_STANDBY: - usb3503_reset(hub->gpio_reset, 0); + usb3503_reset(hub, 0); hub->mode = mode; dev_info(&i2c->dev, "switched to STANDBY mode\n"); @@ -241,7 +247,7 @@ static int usb3503_probe(struct i2c_client *i2c, const struct i2c_device_id *id) if (gpio_is_valid(hub->gpio_connect)) { err = devm_gpio_request_one(&i2c->dev, hub->gpio_connect, - GPIOF_OUT_INIT_HIGH, "usb3503 connect"); + GPIOF_OUT_INIT_LOW, "usb3503 connect"); if (err) { dev_err(&i2c->dev, "unable to request GPIO %d as connect pin (%d)\n", |