diff options
Diffstat (limited to 'drivers/usb/misc/usb3503.c')
| -rw-r--r-- | drivers/usb/misc/usb3503.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c index 03be5d574f23..9ca9e8e769fb 100644 --- a/drivers/usb/misc/usb3503.c +++ b/drivers/usb/misc/usb3503.c @@ -60,6 +60,7 @@ struct usb3503 { struct device *dev; struct clk *clk; u8 port_off_mask; + int gpio_bypass; int gpio_intn; int gpio_reset; int gpio_connect; @@ -74,6 +75,9 @@ static int usb3503_reset(struct usb3503 *hub, int state) if (gpio_is_valid(hub->gpio_reset)) gpio_set_value_cansleep(hub->gpio_reset, state); + if (gpio_is_valid(hub->gpio_bypass)) + gpio_set_value_cansleep(hub->gpio_bypass, state); + /* Wait T_HUBINIT == 4ms for hub logic to stabilize */ if (state) usleep_range(4000, 10000); @@ -180,6 +184,7 @@ static int usb3503_probe(struct usb3503 *hub) if (pdata) { hub->port_off_mask = pdata->port_off_mask; + hub->gpio_bypass = pdata->gpio_bypass; hub->gpio_intn = pdata->gpio_intn; hub->gpio_connect = pdata->gpio_connect; hub->gpio_reset = pdata->gpio_reset; @@ -255,6 +260,9 @@ static int usb3503_probe(struct usb3503 *hub) hub->gpio_connect = of_get_named_gpio(np, "connect-gpios", 0); if (hub->gpio_connect == -EPROBE_DEFER) return -EPROBE_DEFER; + hub->gpio_bypass = of_get_named_gpio(np, "bypass-gpios", 0); + if (hub->gpio_bypass == -EPROBE_DEFER) + return -EPROBE_DEFER; hub->gpio_reset = of_get_named_gpio(np, "reset-gpios", 0); if (hub->gpio_reset == -EPROBE_DEFER) return -EPROBE_DEFER; @@ -289,6 +297,17 @@ static int usb3503_probe(struct usb3503 *hub) } } + if (gpio_is_valid(hub->gpio_bypass)) { + err = devm_gpio_request_one(dev, hub->gpio_bypass, + GPIOF_OUT_INIT_LOW, "usb3503 bypass"); + if (err) { + dev_err(dev, + "unable to request GPIO %d as bypass pin (%d)\n", + hub->gpio_bypass, err); + return err; + } + } + if (gpio_is_valid(hub->gpio_reset)) { err = devm_gpio_request_one(dev, hub->gpio_reset, GPIOF_OUT_INIT_LOW, "usb3503 reset"); @@ -408,6 +427,7 @@ MODULE_DEVICE_TABLE(i2c, usb3503_id); static const struct of_device_id usb3503_of_match[] = { { .compatible = "smsc,usb3503", }, { .compatible = "smsc,usb3503a", }, + { .compatible = "smsc,usb3803", }, {}, }; MODULE_DEVICE_TABLE(of, usb3503_of_match); |