diff options
| -rw-r--r-- | drivers/usb/host/xhci.h | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index f24b7d1..be9048e 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -29,6 +29,8 @@ #include <linux/kernel.h> #include <linux/usb/hcd.h> +#include <asm-generic/io-64-nonatomic-lo-hi.h> + /* Code sharing between pci-quirks and xhci hcd */ #include "xhci-ext-caps.h" #include "pci-quirks.h" @@ -1707,20 +1709,12 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) static inline u64 xhci_read_64(const struct xhci_hcd *xhci, __le64 __iomem *regs) { - __u32 __iomem *ptr = (__u32 __iomem *) regs; - u64 val_lo = readl(ptr); - u64 val_hi = readl(ptr + 1); - return val_lo + (val_hi << 32); + return lo_hi_readq(regs); } static inline void xhci_write_64(struct xhci_hcd *xhci, const u64 val, __le64 __iomem *regs) { - __u32 __iomem *ptr = (__u32 __iomem *) regs; - u32 val_lo = lower_32_bits(val); - u32 val_hi = upper_32_bits(val); - - writel(val_lo, ptr); - writel(val_hi, ptr + 1); + lo_hi_writeq(val, regs); } static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci) |