bcm53xx: use Broadcom's proposed SMP implementation
[openwrt/staging/chunkeey.git] / target / linux / bcm53xx / patches-4.1 / 813-USB-bcma-fix-setting-VCC-GPIO-value.patch
1 From bdc3b01d94b22f8b5f9621a1c37336e78f4f1bce Mon Sep 17 00:00:00 2001
2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
3 Date: Sun, 21 Jun 2015 12:09:57 +0200
4 Subject: [PATCH] USB: bcma: fix setting VCC GPIO value
5 MIME-Version: 1.0
6 Content-Type: text/plain; charset=UTF-8
7 Content-Transfer-Encoding: 8bit
8
9 It wasn't working (on most of devices?) without setting GPIO direction
10 and wasn't respecting ACTIVE_LOW flag.
11
12 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
13 ---
14 drivers/usb/host/bcma-hcd.c | 13 +++++++++----
15 1 file changed, 9 insertions(+), 4 deletions(-)
16
17 --- a/drivers/usb/host/bcma-hcd.c
18 +++ b/drivers/usb/host/bcma-hcd.c
19 @@ -230,17 +230,22 @@ static void bcma_hcd_init_chip_arm(struc
20
21 static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
22 {
23 + enum of_gpio_flags of_flags;
24 int gpio;
25
26 - gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
27 + gpio = of_get_named_gpio_flags(dev->dev.of_node, "vcc-gpio", 0, &of_flags);
28 if (!gpio_is_valid(gpio))
29 return;
30
31 if (val) {
32 - gpio_request(gpio, "bcma-hcd-gpio");
33 - gpio_set_value(gpio, 1);
34 + unsigned long flags = 0;
35 + bool active_low = !!(of_flags & OF_GPIO_ACTIVE_LOW);
36 +
37 + flags |= active_low ? GPIOF_ACTIVE_LOW : 0;
38 + flags |= active_low ? GPIOF_INIT_LOW : GPIOF_INIT_HIGH;
39 + gpio_request_one(gpio, flags, "bcma-hcd-gpio");
40 } else {
41 - gpio_set_value(gpio, 0);
42 + gpiod_set_value(gpio_to_desc(gpio), 0);
43 gpio_free(gpio);
44 }
45 }