From: Victor Kamensky <[email protected]> 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 <[email protected]> Signed-off-by: Taras Kondratiuk <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
