From 351a2ec15fa0855b2dc29dfbb62113f71e4e6a76 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 16 Jun 2015 08:28:46 +0000 Subject: bcm53xx: use USB patches sent upstream by Hauke MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This stabilizes USB support. The old patch was handling initialization in a different order that was causing some problems with few USB 3.0 devices. Some weren't detected, some were working unstable, sometimes USB 3.0 could hang the whole controller. A still known issue (but not a regression) is controller hang triggered by connecting USB 1.1 device when not having OHCI controller enabled (kmod-usb-ohci). Signed-off-by: Rafał Miłecki SVN-Revision: 45997 --- ...d-support-for-controlling-bus-power-throu.patch | 87 ++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch (limited to 'target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch') 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 new file mode 100644 index 0000000000..8a00141b8f --- /dev/null +++ b/target/linux/bcm53xx/patches-3.18/185-USB-bcma-add-support-for-controlling-bus-power-throu.patch @@ -0,0 +1,87 @@ +From f3cf44a313b3687efd55ba091558e20a4d218c31 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens +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 +Signed-off-by: Hauke Mehrtens +--- + drivers/usb/host/bcma-hcd.c | 24 ++++++++++++++++++++++++ + 1 file changed, 24 insertions(+) + +diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c +index 983bc67..a01c6ce 100644 +--- a/drivers/usb/host/bcma-hcd.c ++++ b/drivers/usb/host/bcma-hcd.c +@@ -24,6 +24,8 @@ + #include + #include + #include ++#include ++#include + #include + #include + +@@ -224,6 +226,23 @@ static void bcma_hcd_init_chip_arm(struct bcma_device *dev) + } + } + ++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_device *dev) + 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_device *dev) + + 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 bcma_device *dev) + + 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_device *dev) + + static int bcma_hcd_resume(struct bcma_device *dev) + { ++ bcma_hci_platform_power_gpio(dev, true); + bcma_core_enable(dev, 0); + + return 0; +-- +1.8.4.5 + -- cgit v1.2.3