bcm53xx: respect ACTIVE_LOW when powering USB using GPIO
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 46088
This commit is contained in:
parent
90d425039b
commit
b0cdcf4e93
1 changed files with 28 additions and 9 deletions
|
@ -1,4 +1,4 @@
|
|||
From a9e32f77ff74492d79fe2e24f0418136acd8a680 Mon Sep 17 00:00:00 2001
|
||||
From bdc3b01d94b22f8b5f9621a1c37336e78f4f1bce 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] USB: bcma: fix setting VCC GPIO value
|
||||
|
@ -6,26 +6,45 @@ 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.
|
||||
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>
|
||||
---
|
||||
drivers/usb/host/bcma-hcd.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
drivers/usb/host/bcma-hcd.c | 13 +++++++++----
|
||||
1 file changed, 9 insertions(+), 4 deletions(-)
|
||||
|
||||
diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
|
||||
index f7a66b9..b31e3cc 100644
|
||||
index 8853ef7..d18ffdc 100644
|
||||
--- a/drivers/usb/host/bcma-hcd.c
|
||||
+++ b/drivers/usb/host/bcma-hcd.c
|
||||
@@ -238,7 +238,7 @@ static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
|
||||
@@ -230,17 +230,22 @@ static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
|
||||
|
||||
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_request(gpio, "bcma-hcd-gpio");
|
||||
- gpio_set_value(gpio, 1);
|
||||
+ gpio_direction_output(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);
|
||||
- gpio_set_value(gpio, 0);
|
||||
+ gpiod_set_value(gpio_to_desc(gpio), 0);
|
||||
gpio_free(gpio);
|
||||
}
|
||||
}
|
||||
--
|
||||
1.8.4.5
|
||||
|
||||
|
|
Loading…
Reference in a new issue