Commit b44658e7 authored Sep 17, 2020 by Qii Wang Committed by Wolfram Sang Sep 18, 2020

i2c: mediatek: Send i2c master code at more than 1MHz



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>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

parent ff6f3aff

drivers/i2c/busses/i2c-mt65xx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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,

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