bcm53xx: replace USB patch fixing power control with the most recent version
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 47336
This commit is contained in:
Rafał Miłecki
parent
55a912f43e
commit
c348b3317a
10 changed files with 204 additions and 146 deletions
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@ -0,0 +1,75 @@
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From 0cb136f9882e4649ad6160bb7b48955ff728888c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sun, 1 Nov 2015 08:17:21 +0100
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Subject: [PATCH V2] USB: bcma: switch to GPIO descriptor for power control
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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So far we were using simple (legacy) GPIO functions & some poor logic to
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control power. It got many drawbacks: we were ignoring OF flags
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(GPIO_ACTIVE_LOW), we were not setting direction to output and we were
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assuming gpio_request success all the time.
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Fix it by switching to gpiod functions and adding appropriate checks.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/usb/host/bcma-hcd.c | 21 ++++++++++-----------
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1 file changed, 10 insertions(+), 11 deletions(-)
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diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
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index 5398e3d..291aaa2 100644
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -21,6 +21,7 @@
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*/
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#include <linux/bcma/bcma.h>
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#include <linux/delay.h>
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+#include <linux/gpio/consumer.h>
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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@@ -36,6 +37,7 @@ MODULE_LICENSE("GPL");
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struct bcma_hcd_device {
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struct platform_device *ehci_dev;
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struct platform_device *ohci_dev;
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+ struct gpio_desc *gpio_desc;
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};
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/* Wait for bitmask in a register to get set or cleared.
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@@ -228,19 +230,12 @@ static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
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static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
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{
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- int gpio;
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+ struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
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- gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
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- if (!gpio_is_valid(gpio))
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+ if (IS_ERR_OR_NULL(usb_dev->gpio_desc))
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return;
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- if (val) {
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- gpio_request(gpio, "bcma-hcd-gpio");
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- gpio_set_value(gpio, 1);
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- } else {
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- gpio_set_value(gpio, 0);
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- gpio_free(gpio);
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- }
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+ gpiod_set_value(usb_dev->gpio_desc, val);
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}
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static const struct usb_ehci_pdata ehci_pdata = {
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@@ -314,7 +309,11 @@ static int bcma_hcd_probe(struct bcma_device *dev)
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if (!usb_dev)
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return -ENOMEM;
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- bcma_hci_platform_power_gpio(dev, true);
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+ if (dev->dev.of_node)
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+ usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
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+ &dev->dev.of_node->fwnode);
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+ if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
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+ gpiod_direction_output(usb_dev->gpio_desc, 1);
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switch (dev->id.id) {
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case BCMA_CORE_NS_USB20:
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@ -18,7 +18,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -249,7 +249,10 @@ static const struct usb_ehci_pdata ehci_
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@@ -244,7 +244,10 @@ static const struct usb_ehci_pdata ehci_
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static const struct usb_ohci_pdata ohci_pdata = {
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};
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@ -30,7 +30,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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{
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struct platform_device *hci_dev;
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struct resource hci_res[2];
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@@ -264,8 +267,7 @@ static struct platform_device *bcma_hcd_
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@@ -259,8 +262,7 @@ static struct platform_device *bcma_hcd_
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hci_res[1].start = dev->irq;
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hci_res[1].flags = IORESOURCE_IRQ;
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@ -40,7 +40,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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if (!hci_dev)
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return ERR_PTR(-ENOMEM);
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@@ -276,12 +278,8 @@ static struct platform_device *bcma_hcd_
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@@ -271,12 +273,8 @@ static struct platform_device *bcma_hcd_
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ARRAY_SIZE(hci_res));
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if (ret)
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goto err_alloc;
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@ -55,7 +55,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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if (ret)
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goto err_alloc;
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ret = platform_device_add(hci_dev);
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@@ -334,11 +332,15 @@ static int bcma_hcd_probe(struct bcma_de
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@@ -333,11 +331,15 @@ static int bcma_hcd_probe(struct bcma_de
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&& chipinfo->rev == 0)
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ohci_addr = 0x18009000;
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@ -17,15 +17,15 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -34,6 +34,7 @@ MODULE_DESCRIPTION("Common USB driver fo
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@@ -35,6 +35,7 @@ MODULE_DESCRIPTION("Common USB driver fo
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MODULE_LICENSE("GPL");
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struct bcma_hcd_device {
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+ struct bcma_device *core;
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struct platform_device *ehci_dev;
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struct platform_device *ohci_dev;
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};
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@@ -293,27 +294,16 @@ err_alloc:
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struct gpio_desc *gpio_desc;
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@@ -288,31 +289,16 @@ err_alloc:
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return ERR_PTR(ret);
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}
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@ -52,12 +52,16 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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- if (!usb_dev)
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- return -ENOMEM;
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-
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- bcma_hci_platform_power_gpio(dev, true);
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- if (dev->dev.of_node)
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- usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
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- &dev->dev.of_node->fwnode);
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- if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
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- gpiod_direction_output(usb_dev->gpio_desc, 1);
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-
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switch (dev->id.id) {
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case BCMA_CORE_NS_USB20:
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bcma_hcd_init_chip_arm(dev);
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@@ -346,7 +336,6 @@ static int bcma_hcd_probe(struct bcma_de
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@@ -345,7 +331,6 @@ static int bcma_hcd_probe(struct bcma_de
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goto err_unregister_ohci_dev;
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}
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@ -65,7 +69,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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return 0;
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err_unregister_ohci_dev:
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@@ -354,6 +343,36 @@ err_unregister_ohci_dev:
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@@ -353,6 +338,40 @@ err_unregister_ohci_dev:
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return err;
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}
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@ -82,7 +86,11 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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+ return -ENOMEM;
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+ usb_dev->core = dev;
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+
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+ bcma_hci_platform_power_gpio(dev, true);
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+ if (dev->dev.of_node)
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+ usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
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+ &dev->dev.of_node->fwnode);
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+ if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
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+ gpiod_direction_output(usb_dev->gpio_desc, 1);
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+
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+ switch (dev->id.id) {
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+ case BCMA_CORE_USB20_HOST:
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@ -14,7 +14,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -28,6 +28,7 @@
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@@ -29,6 +29,7 @@
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#include <linux/of_gpio.h>
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#include <linux/usb/ehci_pdriver.h>
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#include <linux/usb/ohci_pdriver.h>
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@ -22,15 +22,15 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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MODULE_AUTHOR("Hauke Mehrtens");
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MODULE_DESCRIPTION("Common USB driver for BCMA Bus");
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@@ -37,6 +38,7 @@ struct bcma_hcd_device {
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@@ -38,6 +39,7 @@ struct bcma_hcd_device {
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struct bcma_device *core;
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struct platform_device *ehci_dev;
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struct platform_device *ohci_dev;
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+ struct platform_device *xhci_dev;
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struct gpio_desc *gpio_desc;
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};
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/* Wait for bitmask in a register to get set or cleared.
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@@ -250,6 +252,10 @@ static const struct usb_ehci_pdata ehci_
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@@ -245,6 +247,10 @@ static const struct usb_ehci_pdata ehci_
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static const struct usb_ohci_pdata ohci_pdata = {
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};
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@ -41,7 +41,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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static struct platform_device *bcma_hcd_create_pdev(struct bcma_device *dev,
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const char *name, u32 addr,
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const void *data,
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@@ -343,6 +349,216 @@ err_unregister_ohci_dev:
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@@ -338,6 +344,216 @@ err_unregister_ohci_dev:
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return err;
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}
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@ -258,7 +258,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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static int bcma_hcd_probe(struct bcma_device *dev)
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{
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int err;
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@@ -365,6 +581,11 @@ static int bcma_hcd_probe(struct bcma_de
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@@ -364,6 +580,11 @@ static int bcma_hcd_probe(struct bcma_de
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if (err)
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return err;
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break;
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@ -270,7 +270,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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default:
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return -ENODEV;
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}
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@@ -378,11 +599,14 @@ static void bcma_hcd_remove(struct bcma_
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@@ -377,11 +598,14 @@ static void bcma_hcd_remove(struct bcma_
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struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
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struct platform_device *ohci_dev = usb_dev->ohci_dev;
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struct platform_device *ehci_dev = usb_dev->ehci_dev;
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@ -285,7 +285,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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bcma_core_disable(dev, 0);
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}
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@@ -419,6 +643,7 @@ static int bcma_hcd_resume(struct bcma_d
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@@ -418,6 +642,7 @@ static int bcma_hcd_resume(struct bcma_d
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static const struct bcma_device_id bcma_hcd_table[] = {
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BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
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BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS),
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@ -1,54 +0,0 @@
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From 7572673e06393b117f87b20b82be0518634d7042 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sun, 21 Jun 2015 12:09:57 +0200
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Subject: [PATCH v3 6/6] usb: bcma: fix setting VCC GPIO value
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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It wasn't working (on most of devices?) without setting GPIO direction
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and wasn't respecting ACTIVE_LOW flag.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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drivers/usb/host/bcma-hcd.c | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -26,6 +26,7 @@
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#include <linux/slab.h>
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#include <linux/of.h>
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#include <linux/of_gpio.h>
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+#include <linux/gpio/consumer.h>
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#include <linux/usb/ehci_pdriver.h>
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#include <linux/usb/ohci_pdriver.h>
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#include <linux/usb/xhci_pdriver.h>
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@@ -231,17 +232,22 @@ static void bcma_hcd_init_chip_arm(struc
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static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
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{
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+ enum of_gpio_flags of_flags;
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int gpio;
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- gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
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+ gpio = of_get_named_gpio_flags(dev->dev.of_node, "vcc-gpio", 0, &of_flags);
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if (!gpio_is_valid(gpio))
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return;
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if (val) {
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- gpio_request(gpio, "bcma-hcd-gpio");
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- gpio_set_value(gpio, 1);
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+ unsigned long flags = 0;
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+ bool active_low = !!(of_flags & OF_GPIO_ACTIVE_LOW);
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+
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+ flags |= active_low ? GPIOF_ACTIVE_LOW : 0;
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+ flags |= active_low ? GPIOF_INIT_LOW : GPIOF_INIT_HIGH;
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+ gpio_request_one(gpio, flags, "bcma-hcd-gpio");
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} else {
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- gpio_set_value(gpio, 0);
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+ gpiod_set_value(gpio_to_desc(gpio), 0);
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gpio_free(gpio);
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}
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}
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@ -0,0 +1,75 @@
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From 0cb136f9882e4649ad6160bb7b48955ff728888c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Sun, 1 Nov 2015 08:17:21 +0100
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Subject: [PATCH V2] USB: bcma: switch to GPIO descriptor for power control
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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So far we were using simple (legacy) GPIO functions & some poor logic to
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control power. It got many drawbacks: we were ignoring OF flags
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(GPIO_ACTIVE_LOW), we were not setting direction to output and we were
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assuming gpio_request success all the time.
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Fix it by switching to gpiod functions and adding appropriate checks.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/usb/host/bcma-hcd.c | 21 ++++++++++-----------
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1 file changed, 10 insertions(+), 11 deletions(-)
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diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
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index 5398e3d..291aaa2 100644
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -21,6 +21,7 @@
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*/
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#include <linux/bcma/bcma.h>
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#include <linux/delay.h>
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+#include <linux/gpio/consumer.h>
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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@@ -36,6 +37,7 @@ MODULE_LICENSE("GPL");
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struct bcma_hcd_device {
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struct platform_device *ehci_dev;
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struct platform_device *ohci_dev;
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+ struct gpio_desc *gpio_desc;
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};
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/* Wait for bitmask in a register to get set or cleared.
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@@ -228,19 +230,12 @@ static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
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static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
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{
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- int gpio;
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+ struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
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- gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
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- if (!gpio_is_valid(gpio))
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+ if (IS_ERR_OR_NULL(usb_dev->gpio_desc))
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return;
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- if (val) {
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- gpio_request(gpio, "bcma-hcd-gpio");
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- gpio_set_value(gpio, 1);
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- } else {
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- gpio_set_value(gpio, 0);
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- gpio_free(gpio);
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- }
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+ gpiod_set_value(usb_dev->gpio_desc, val);
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}
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static const struct usb_ehci_pdata ehci_pdata = {
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@@ -314,7 +309,11 @@ static int bcma_hcd_probe(struct bcma_device *dev)
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if (!usb_dev)
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return -ENOMEM;
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- bcma_hci_platform_power_gpio(dev, true);
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+ if (dev->dev.of_node)
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+ usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
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+ &dev->dev.of_node->fwnode);
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+ if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
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+ gpiod_direction_output(usb_dev->gpio_desc, 1);
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switch (dev->id.id) {
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case BCMA_CORE_NS_USB20:
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|
|
@ -18,7 +18,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
|
||||
--- a/drivers/usb/host/bcma-hcd.c
|
||||
+++ b/drivers/usb/host/bcma-hcd.c
|
||||
@@ -249,7 +249,10 @@ static const struct usb_ehci_pdata ehci_
|
||||
@@ -244,7 +244,10 @@ static const struct usb_ehci_pdata ehci_
|
||||
static const struct usb_ohci_pdata ohci_pdata = {
|
||||
};
|
||||
|
||||
|
|
@ -30,7 +30,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
{
|
||||
struct platform_device *hci_dev;
|
||||
struct resource hci_res[2];
|
||||
@@ -264,8 +267,7 @@ static struct platform_device *bcma_hcd_
|
||||
@@ -259,8 +262,7 @@ static struct platform_device *bcma_hcd_
|
||||
hci_res[1].start = dev->irq;
|
||||
hci_res[1].flags = IORESOURCE_IRQ;
|
||||
|
||||
|
|
@ -40,7 +40,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
if (!hci_dev)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
@@ -276,12 +278,8 @@ static struct platform_device *bcma_hcd_
|
||||
@@ -271,12 +273,8 @@ static struct platform_device *bcma_hcd_
|
||||
ARRAY_SIZE(hci_res));
|
||||
if (ret)
|
||||
goto err_alloc;
|
||||
|
|
@ -55,7 +55,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
if (ret)
|
||||
goto err_alloc;
|
||||
ret = platform_device_add(hci_dev);
|
||||
@@ -334,11 +332,15 @@ static int bcma_hcd_probe(struct bcma_de
|
||||
@@ -333,11 +331,15 @@ static int bcma_hcd_probe(struct bcma_de
|
||||
&& chipinfo->rev == 0)
|
||||
ohci_addr = 0x18009000;
|
||||
|
||||
|
|
|
|||
|
|
@ -17,15 +17,15 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
|
||||
--- a/drivers/usb/host/bcma-hcd.c
|
||||
+++ b/drivers/usb/host/bcma-hcd.c
|
||||
@@ -34,6 +34,7 @@ MODULE_DESCRIPTION("Common USB driver fo
|
||||
@@ -35,6 +35,7 @@ MODULE_DESCRIPTION("Common USB driver fo
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
struct bcma_hcd_device {
|
||||
+ struct bcma_device *core;
|
||||
struct platform_device *ehci_dev;
|
||||
struct platform_device *ohci_dev;
|
||||
};
|
||||
@@ -293,27 +294,16 @@ err_alloc:
|
||||
struct gpio_desc *gpio_desc;
|
||||
@@ -288,31 +289,16 @@ err_alloc:
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
|
|
@ -52,12 +52,16 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
- if (!usb_dev)
|
||||
- return -ENOMEM;
|
||||
-
|
||||
- bcma_hci_platform_power_gpio(dev, true);
|
||||
- if (dev->dev.of_node)
|
||||
- usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
|
||||
- &dev->dev.of_node->fwnode);
|
||||
- if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
|
||||
- gpiod_direction_output(usb_dev->gpio_desc, 1);
|
||||
-
|
||||
switch (dev->id.id) {
|
||||
case BCMA_CORE_NS_USB20:
|
||||
bcma_hcd_init_chip_arm(dev);
|
||||
@@ -346,7 +336,6 @@ static int bcma_hcd_probe(struct bcma_de
|
||||
@@ -345,7 +331,6 @@ static int bcma_hcd_probe(struct bcma_de
|
||||
goto err_unregister_ohci_dev;
|
||||
}
|
||||
|
||||
|
|
@ -65,7 +69,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
return 0;
|
||||
|
||||
err_unregister_ohci_dev:
|
||||
@@ -354,6 +343,36 @@ err_unregister_ohci_dev:
|
||||
@@ -353,6 +338,40 @@ err_unregister_ohci_dev:
|
||||
return err;
|
||||
}
|
||||
|
||||
|
|
@ -82,7 +86,11 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
+ return -ENOMEM;
|
||||
+ usb_dev->core = dev;
|
||||
+
|
||||
+ bcma_hci_platform_power_gpio(dev, true);
|
||||
+ if (dev->dev.of_node)
|
||||
+ usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
|
||||
+ &dev->dev.of_node->fwnode);
|
||||
+ if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
|
||||
+ gpiod_direction_output(usb_dev->gpio_desc, 1);
|
||||
+
|
||||
+ switch (dev->id.id) {
|
||||
+ case BCMA_CORE_USB20_HOST:
|
||||
|
|
|
|||
|
|
@ -14,7 +14,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
|
||||
--- a/drivers/usb/host/bcma-hcd.c
|
||||
+++ b/drivers/usb/host/bcma-hcd.c
|
||||
@@ -28,6 +28,7 @@
|
||||
@@ -29,6 +29,7 @@
|
||||
#include <linux/of_gpio.h>
|
||||
#include <linux/usb/ehci_pdriver.h>
|
||||
#include <linux/usb/ohci_pdriver.h>
|
||||
|
|
@ -22,15 +22,15 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
|
||||
MODULE_AUTHOR("Hauke Mehrtens");
|
||||
MODULE_DESCRIPTION("Common USB driver for BCMA Bus");
|
||||
@@ -37,6 +38,7 @@ struct bcma_hcd_device {
|
||||
@@ -38,6 +39,7 @@ struct bcma_hcd_device {
|
||||
struct bcma_device *core;
|
||||
struct platform_device *ehci_dev;
|
||||
struct platform_device *ohci_dev;
|
||||
+ struct platform_device *xhci_dev;
|
||||
struct gpio_desc *gpio_desc;
|
||||
};
|
||||
|
||||
/* Wait for bitmask in a register to get set or cleared.
|
||||
@@ -250,6 +252,10 @@ static const struct usb_ehci_pdata ehci_
|
||||
@@ -245,6 +247,10 @@ static const struct usb_ehci_pdata ehci_
|
||||
static const struct usb_ohci_pdata ohci_pdata = {
|
||||
};
|
||||
|
||||
|
|
@ -41,7 +41,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
static struct platform_device *bcma_hcd_create_pdev(struct bcma_device *dev,
|
||||
const char *name, u32 addr,
|
||||
const void *data,
|
||||
@@ -343,6 +349,216 @@ err_unregister_ohci_dev:
|
||||
@@ -338,6 +344,216 @@ err_unregister_ohci_dev:
|
||||
return err;
|
||||
}
|
||||
|
||||
|
|
@ -258,7 +258,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
static int bcma_hcd_probe(struct bcma_device *dev)
|
||||
{
|
||||
int err;
|
||||
@@ -365,6 +581,11 @@ static int bcma_hcd_probe(struct bcma_de
|
||||
@@ -364,6 +580,11 @@ static int bcma_hcd_probe(struct bcma_de
|
||||
if (err)
|
||||
return err;
|
||||
break;
|
||||
|
|
@ -270,7 +270,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
default:
|
||||
return -ENODEV;
|
||||
}
|
||||
@@ -378,11 +599,14 @@ static void bcma_hcd_remove(struct bcma_
|
||||
@@ -377,11 +598,14 @@ static void bcma_hcd_remove(struct bcma_
|
||||
struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
|
||||
struct platform_device *ohci_dev = usb_dev->ohci_dev;
|
||||
struct platform_device *ehci_dev = usb_dev->ehci_dev;
|
||||
|
|
@ -285,7 +285,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|||
|
||||
bcma_core_disable(dev, 0);
|
||||
}
|
||||
@@ -419,6 +643,7 @@ static int bcma_hcd_resume(struct bcma_d
|
||||
@@ -418,6 +642,7 @@ static int bcma_hcd_resume(struct bcma_d
|
||||
static const struct bcma_device_id bcma_hcd_table[] = {
|
||||
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
|
||||
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS),
|
||||
|
|
|
|||
|
|
@ -1,54 +0,0 @@
|
|||
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);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue