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path: root/drivers/usb/host/ehci-dbg.c
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Diffstat (limited to 'drivers/usb/host/ehci-dbg.c')
-rw-r--r--drivers/usb/host/ehci-dbg.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index fd9109d7eb0e..7561966fbdc4 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -352,7 +352,6 @@ static int debug_async_open(struct inode *, struct file *);
static int debug_periodic_open(struct inode *, struct file *);
static int debug_registers_open(struct inode *, struct file *);
static int debug_async_open(struct inode *, struct file *);
-static int debug_lpm_open(struct inode *, struct file *);
static ssize_t debug_lpm_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
static ssize_t debug_lpm_write(struct file *file, const char __user *buffer,
@@ -385,7 +384,7 @@ static const struct file_operations debug_registers_fops = {
};
static const struct file_operations debug_lpm_fops = {
.owner = THIS_MODULE,
- .open = debug_lpm_open,
+ .open = simple_open,
.read = debug_lpm_read,
.write = debug_lpm_write,
.release = debug_lpm_close,
@@ -970,12 +969,6 @@ static int debug_registers_open(struct inode *inode, struct file *file)
return file->private_data ? 0 : -ENOMEM;
}
-static int debug_lpm_open(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
static int debug_lpm_close(struct inode *inode, struct file *file)
{
return 0;
@@ -1032,10 +1025,8 @@ static ssize_t debug_lpm_write(struct file *file, const char __user *user_buf,
if (strict_strtoul(buf + 5, 16, &hird))
return -EINVAL;
printk(KERN_INFO "setting hird %s %lu\n", buf + 6, hird);
- temp = ehci_readl(ehci, &ehci->regs->command);
- temp &= ~CMD_HIRD;
- temp |= hird << 24;
- ehci_writel(ehci, temp, &ehci->regs->command);
+ ehci->command = (ehci->command & ~CMD_HIRD) | (hird << 24);
+ ehci_writel(ehci, ehci->command, &ehci->regs->command);
} else if (strncmp(buf, "disable", 7) == 0) {
if (strict_strtoul(buf + 8, 10, &port))
return -EINVAL;