From: Victor Kamensky <victor.kamensky@xxxxxxxxxx>
All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.
Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.
Signed-off-by: Victor Kamensky <victor.kamensky@xxxxxxxxxx>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@xxxxxxxxxx>
---
drivers/usb/musb/musb_io.h | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index eebeed7..76f4d2a 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -42,17 +42,17 @@
/* NOTE: these offsets are all in bytes */
static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
- { return __raw_readw(addr + offset); }
+ { return readw_relaxed(addr + offset); }
static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
- { return __raw_readl(addr + offset); }
+ { return readl_relaxed(addr + offset); }
static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
- { __raw_writew(data, addr + offset); }
+ { writew_relaxed(data, addr + offset); }
static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
- { __raw_writel(data, addr + offset); }
+ { writel_relaxed(data, addr + offset); }
#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
@@ -65,7 +65,7 @@ static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
u16 tmp;
u8 val;
- tmp = __raw_readw(addr + (offset & ~1));
+ tmp = readw_relaxed(addr + (offset & ~1));
if (offset & 1)
val = (tmp >> 8);
else
@@ -78,22 +78,22 @@ static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
{
u16 tmp;
- tmp = __raw_readw(addr + (offset & ~1));
+ tmp = readw_relaxed(addr + (offset & ~1));
if (offset & 1)
tmp = (data << 8) | (tmp & 0xff);
else
tmp = (tmp & 0xff00) | data;
- __raw_writew(tmp, addr + (offset & ~1));
+ writew_relaxed(tmp, addr + (offset & ~1));
}
#else
static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
- { return __raw_readb(addr + offset); }
+ { return readb_relaxed(addr + offset); }
static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
- { __raw_writeb(data, addr + offset); }
+ { writeb_relaxed(data, addr + offset); }
#endif /* CONFIG_USB_MUSB_TUSB6010 */
--
1.7.9.5
--
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