diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch')
-rw-r--r-- | target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch b/target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch deleted file mode 100644 index d9a8a1e621..0000000000 --- a/target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch +++ /dev/null @@ -1,82 +0,0 @@ -From f3cf44a313b3687efd55ba091558e20a4d218c31 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Thu, 11 Jun 2015 22:57:40 +0200 -Subject: [PATCH] USB: bcma: add support for controlling bus power through GPIO - -On some boards a GPIO is needed to activate USB controller. Make it -possible to specify such a GPIO in device tree. - -Signed-off-by: Felix Fietkau <nbd@openwrt.org> -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - drivers/usb/host/bcma-hcd.c | 24 ++++++++++++++++++++++++ - 1 file changed, 24 insertions(+) - ---- a/drivers/usb/host/bcma-hcd.c -+++ b/drivers/usb/host/bcma-hcd.c -@@ -24,6 +24,8 @@ - #include <linux/platform_device.h> - #include <linux/module.h> - #include <linux/slab.h> -+#include <linux/of.h> -+#include <linux/of_gpio.h> - #include <linux/usb/ehci_pdriver.h> - #include <linux/usb/ohci_pdriver.h> - -@@ -224,6 +226,23 @@ static void bcma_hcd_init_chip_arm(struc - } - } - -+static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val) -+{ -+ int gpio; -+ -+ gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0); -+ if (!gpio_is_valid(gpio)) -+ return; -+ -+ if (val) { -+ gpio_request(gpio, "bcma-hcd-gpio"); -+ gpio_set_value(gpio, 1); -+ } else { -+ gpio_set_value(gpio, 0); -+ gpio_free(gpio); -+ } -+} -+ - static const struct usb_ehci_pdata ehci_pdata = { - }; - -@@ -295,6 +314,8 @@ static int bcma_hcd_probe(struct bcma_de - if (!usb_dev) - return -ENOMEM; - -+ bcma_hci_platform_power_gpio(dev, true); -+ - switch (dev->id.id) { - case BCMA_CORE_NS_USB20: - bcma_hcd_init_chip_arm(dev); -@@ -347,6 +368,7 @@ static void bcma_hcd_remove(struct bcma_ - - static void bcma_hcd_shutdown(struct bcma_device *dev) - { -+ bcma_hci_platform_power_gpio(dev, false); - bcma_core_disable(dev, 0); - } - -@@ -354,6 +376,7 @@ static void bcma_hcd_shutdown(struct bcm - - static int bcma_hcd_suspend(struct bcma_device *dev) - { -+ bcma_hci_platform_power_gpio(dev, false); - bcma_core_disable(dev, 0); - - return 0; -@@ -361,6 +384,7 @@ static int bcma_hcd_suspend(struct bcma_ - - static int bcma_hcd_resume(struct bcma_device *dev) - { -+ bcma_hci_platform_power_gpio(dev, true); - bcma_core_enable(dev, 0); - - return 0; |