diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-4.3/198-USB-bcma-fix-setting-VCC-GPIO-value.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-4.3/198-USB-bcma-fix-setting-VCC-GPIO-value.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-4.3/198-USB-bcma-fix-setting-VCC-GPIO-value.patch b/target/linux/bcm53xx/patches-4.3/198-USB-bcma-fix-setting-VCC-GPIO-value.patch new file mode 100644 index 0000000000..75932937c0 --- /dev/null +++ b/target/linux/bcm53xx/patches-4.3/198-USB-bcma-fix-setting-VCC-GPIO-value.patch @@ -0,0 +1,54 @@ +From 7572673e06393b117f87b20b82be0518634d7042 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Sun, 21 Jun 2015 12:09:57 +0200 +Subject: [PATCH v3 6/6] usb: bcma: fix setting VCC GPIO value +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It wasn't working (on most of devices?) without setting GPIO direction +and wasn't respecting ACTIVE_LOW flag. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +--- + drivers/usb/host/bcma-hcd.c | 14 ++++++++++---- + 1 file changed, 10 insertions(+), 4 deletions(-) + +--- a/drivers/usb/host/bcma-hcd.c ++++ b/drivers/usb/host/bcma-hcd.c +@@ -26,6 +26,7 @@ + #include <linux/slab.h> + #include <linux/of.h> + #include <linux/of_gpio.h> ++#include <linux/gpio/consumer.h> + #include <linux/usb/ehci_pdriver.h> + #include <linux/usb/ohci_pdriver.h> + #include <linux/usb/xhci_pdriver.h> +@@ -231,17 +232,22 @@ static void bcma_hcd_init_chip_arm(struc + + static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val) + { ++ enum of_gpio_flags of_flags; + int gpio; + +- gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0); ++ gpio = of_get_named_gpio_flags(dev->dev.of_node, "vcc-gpio", 0, &of_flags); + if (!gpio_is_valid(gpio)) + return; + + if (val) { +- gpio_request(gpio, "bcma-hcd-gpio"); +- gpio_set_value(gpio, 1); ++ unsigned long flags = 0; ++ bool active_low = !!(of_flags & OF_GPIO_ACTIVE_LOW); ++ ++ flags |= active_low ? GPIOF_ACTIVE_LOW : 0; ++ flags |= active_low ? GPIOF_INIT_LOW : GPIOF_INIT_HIGH; ++ gpio_request_one(gpio, flags, "bcma-hcd-gpio"); + } else { +- gpio_set_value(gpio, 0); ++ gpiod_set_value(gpio_to_desc(gpio), 0); + gpio_free(gpio); + } + } |