mirror of https://gitee.com/openkylin/linux.git
mfd: omap-usb-tll: Fix register offsets
gcc-8 notices that the register number calculation is wrong
when the offset is an 'u8' but the number is larger than 256:
drivers/mfd/omap-usb-tll.c: In function 'omap_tll_init':
drivers/mfd/omap-usb-tll.c:90:46: error: overflow in conversion from 'int' to 'u8 {aka unsigned char}' chages value from 'i * 256 + 2070' to '22' [-Werror=overflow]
This addresses it by always using a 32-bit offset number for
the register. This is apparently an old problem that previous
compilers did not find.
Fixes: 16fa3dc75c
("mfd: omap-usb-tll: HOST TLL platform driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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@ -131,12 +131,12 @@ static inline u32 usbtll_read(void __iomem *base, u32 reg)
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return readl_relaxed(base + reg);
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}
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static inline void usbtll_writeb(void __iomem *base, u8 reg, u8 val)
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static inline void usbtll_writeb(void __iomem *base, u32 reg, u8 val)
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{
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writeb_relaxed(val, base + reg);
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}
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static inline u8 usbtll_readb(void __iomem *base, u8 reg)
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static inline u8 usbtll_readb(void __iomem *base, u32 reg)
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{
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return readb_relaxed(base + reg);
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}
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