diff options
Diffstat (limited to 'src/soc/mediatek/mt8173/i2c.c')
| -rw-r--r-- | src/soc/mediatek/mt8173/i2c.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/soc/mediatek/mt8173/i2c.c b/src/soc/mediatek/mt8173/i2c.c index f07ffc92ab..1d541e5d0f 100644 --- a/src/soc/mediatek/mt8173/i2c.c +++ b/src/soc/mediatek/mt8173/i2c.c @@ -136,7 +136,7 @@ static inline void mtk_i2c_dump_info(uint8_t bus) I2CLOG("addr address %x\n", (uint32_t)regs); } -static uint32_t mtk_i2c_transfer(uint8_t bus, struct i2c_seg *seg, +static uint32_t mtk_i2c_transfer(uint8_t bus, struct i2c_msg *seg, enum i2c_modes read) { uint32_t ret_code = I2C_OK; @@ -154,7 +154,7 @@ static uint32_t mtk_i2c_transfer(uint8_t bus, struct i2c_seg *seg, regs = i2c[bus].i2c_regs; dma_regs = i2c[bus].i2c_dma_regs; - addr = seg[0].chip; + addr = seg[0].slave; switch (read) { case I2C_WRITE_MODE: @@ -305,26 +305,31 @@ static uint32_t mtk_i2c_transfer(uint8_t bus, struct i2c_seg *seg, return ret_code; } -static uint8_t mtk_i2c_should_combine(struct i2c_seg *seg, int left_count) +static uint8_t mtk_i2c_should_combine(struct i2c_msg *seg, int left_count) { - if (left_count >= 2 && seg[0].read == 0 && seg[1].read == 1 && - seg[0].chip == seg[1].chip) + if (left_count >= 2 && + !(seg[0].flags & I2C_M_RD) && + (seg[1].flags & I2C_M_RD) && + seg[0].slave == seg[1].slave) return 1; else return 0; } -int platform_i2c_transfer(unsigned bus, struct i2c_seg *segments, int seg_count) +int platform_i2c_transfer(unsigned bus, struct i2c_msg *segments, + int seg_count) { int ret = 0; int i; int read; for (i = 0; i < seg_count; i++) { - if (mtk_i2c_should_combine(&segments[i], seg_count - i)) + if (mtk_i2c_should_combine(&segments[i], seg_count - i)) { read = I2C_WRITE_READ_MODE; - else - read = segments[i].read; + } else { + read = (segments[i].flags & I2C_M_RD) ? + I2C_READ_MODE : I2C_WRITE_MODE; + } ret = mtk_i2c_transfer(bus, &segments[i], read); |