From: Sonic Zhang Date: Tue, 5 Jun 2012 05:20:06 +0000 (+0800) Subject: i2c: i2c-bfin-twi: Always access 16 bit MMR by bfin 16 bit access Macro. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f794d7ba884ffdde063273a97045a6b8d05aa94c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git i2c: i2c-bfin-twi: Always access 16 bit MMR by bfin 16 bit access Macro. Otherwise, the compiler may optimize assemble code into 8bit access instruction when target register is 8 bit width. Signed-off-by: Sonic Zhang Signed-off-by: Bob Liu --- diff --git a/arch/blackfin/include/asm/bfin_twi.h b/arch/blackfin/include/asm/bfin_twi.h index 2f3339a47626..e3b40e2856f2 100644 --- a/arch/blackfin/include/asm/bfin_twi.h +++ b/arch/blackfin/include/asm/bfin_twi.h @@ -66,9 +66,9 @@ struct bfin_twi_iface { #define DEFINE_TWI_REG(reg_name, reg) \ static inline u16 read_##reg_name(struct bfin_twi_iface *iface) \ - { return iface->regs_base->reg; } \ + { return bfin_read16(&iface->regs_base->reg); } \ static inline void write_##reg_name(struct bfin_twi_iface *iface, u16 v) \ - { iface->regs_base->reg = v; } + { bfin_write16(&iface->regs_base->reg, v); } DEFINE_TWI_REG(CLKDIV, clkdiv) DEFINE_TWI_REG(CONTROL, control)