From 2ddcf4c46ec9c31a65e6ccc7bef92622a700d420 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Wed, 11 Mar 2015 17:08:08 +0000 Subject: lantiq: Configure gpio power output pin when initializing dwc2 usb MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Port gpio code from original ltq-hcd driver to dwc2. Signed-off-by: Antti Seppälä Signed-off-by: Vincent Pelletier SVN-Revision: 44673 --- .../0040-USB-DWC2-enable-usb-power-gpio.patch | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 target/linux/lantiq/patches-3.18/0040-USB-DWC2-enable-usb-power-gpio.patch (limited to 'target/linux') diff --git a/target/linux/lantiq/patches-3.18/0040-USB-DWC2-enable-usb-power-gpio.patch b/target/linux/lantiq/patches-3.18/0040-USB-DWC2-enable-usb-power-gpio.patch new file mode 100644 index 0000000000..4e51d3ee5e --- /dev/null +++ b/target/linux/lantiq/patches-3.18/0040-USB-DWC2-enable-usb-power-gpio.patch @@ -0,0 +1,35 @@ +--- a/drivers/usb/dwc2/platform.c 2015-02-06 16:53:48.000000000 +0200 ++++ b/drivers/usb/dwc2/platform.c 2015-02-09 19:22:41.974089626 +0200 +@@ -40,6 +40,7 @@ + #include + #include + #include ++#include + #include + + #include +@@ -154,6 +155,7 @@ + struct resource *res; + int retval; + int irq; ++ int gpio_count; + + if (usb_disabled()) + return -ENODEV; +@@ -173,6 +175,16 @@ + 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; -- cgit v1.2.3