|
|
|
|
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
|
|
|
|
|
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>
|
|
|
|
|
---
|
|
|
|
|
drivers/usb/host/bcma-hcd.c | 13 +++++++++----
|
|
|
|
|
1 file changed, 9 insertions(+), 4 deletions(-)
|
|
|
|
|
|
|
|
|
|
--- a/drivers/usb/host/bcma-hcd.c
|
|
|
|
|
+++ b/drivers/usb/host/bcma-hcd.c
|
|
|
|
|
@@ -230,17 +230,22 @@ 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);
|
|
|
|
|
}
|
|
|
|
|
}
|
