openwrtv3/target/linux/bcm53xx/patches-4.3/198-USB-bcma-fix-setting-VCC-GPIO-value.patch
Hauke Mehrtens fa4395db04 bcm53xx: add support basic for kernel 4.3
The files directory is now split up into the files which are needed for
every kernel version and the files only needed by kernel 4.1. The files
in files-4.1 are already merged into mainline kernel 4.3. This patch
only removed patches which were merged into mainline kernel 4.3.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 47251
2015-10-25 16:43:14 +00:00

54 lines
1.7 KiB
Diff

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);
}
}