Messages in this thread Patch in this message | | | From | Qii Wang <> | Subject | [PATCH 2/2] i2c: mediatek: Send i2c master code at more than 1MHz | Date | Thu, 17 Sep 2020 19:55:42 +0800 |
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The master code needs to being sent when the speed is more than I2C_MAX_FAST_MODE_PLUS_FREQ, not I2C_MAX_FAST_MODE_FREQ in the latest I2C-bus specification and user manual.
Signed-off-by: Qii Wang <qii.wang@mediatek.com> --- drivers/i2c/busses/i2c-mt65xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index a1978eb..0cbdfbe 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -759,7 +759,7 @@ static int mtk_i2c_set_speed(struct mtk_i2c *i2c, unsigned int parent_clk) for (clk_div = 1; clk_div <= max_clk_div; clk_div++) { clk_src = parent_clk / clk_div; - if (target_speed > I2C_MAX_FAST_MODE_FREQ) { + if (target_speed > I2C_MAX_FAST_MODE_PLUS_FREQ) { /* Set master code speed register */ ret = mtk_i2c_calculate_speed(i2c, clk_src, I2C_MAX_FAST_MODE_FREQ, -- 1.9.1 | |