diff options
Diffstat (limited to 'target/linux/lantiq/patches-4.1/0040-USB-DWC2-enable-usb-power-gpio.patch')
| -rw-r--r-- | target/linux/lantiq/patches-4.1/0040-USB-DWC2-enable-usb-power-gpio.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-4.1/0040-USB-DWC2-enable-usb-power-gpio.patch b/target/linux/lantiq/patches-4.1/0040-USB-DWC2-enable-usb-power-gpio.patch new file mode 100644 index 0000000000..9c6f11cb13 --- /dev/null +++ b/target/linux/lantiq/patches-4.1/0040-USB-DWC2-enable-usb-power-gpio.patch @@ -0,0 +1,35 @@ +--- a/drivers/usb/dwc2/platform.c ++++ b/drivers/usb/dwc2/platform.c +@@ -41,6 +41,7 @@ + #include <linux/dma-mapping.h> + #include <linux/of_device.h> + #include <linux/mutex.h> ++#include <linux/of_gpio.h> + #include <linux/platform_device.h> + + #include <linux/usb/of.h> +@@ -161,6 +162,7 @@ static int dwc2_driver_probe(struct plat + struct usb_phy *uphy; + int retval; + int irq; ++ int gpio_count; + + match = of_match_device(dwc2_of_match_table, &dev->dev); + if (match && match->data) { +@@ -177,6 +179,16 @@ static int dwc2_driver_probe(struct plat + defparams.dma_desc_enable = 0; + } + ++ gpio_count = of_gpio_count(dev->dev.of_node); ++ while (gpio_count > 0) { ++ enum of_gpio_flags flags; ++ int gpio = of_get_gpio_flags(dev->dev.of_node, --gpio_count, &flags); ++ if (gpio_request(gpio, "usb")) ++ continue; ++ dev_info(&dev->dev, "requested GPIO %d\n", gpio); ++ gpio_direction_output(gpio, (flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1)); ++ } ++ + hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL); + if (!hsotg) + return -ENOMEM; |