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charset="utf-8" From: Gao Pan When i2c peripheral clk rate is 0 directly return -EINVAL. Signed-off-by: Gao Pan Signed-off-by: Carlos Song Acked-by: Dong Aisheng --- Changes for V2: - adjust the subject from "debug message" to "error message" Changes for V3: - remove output error log when i2c peripheral clk doesn't work - adjust commit log and subject --- drivers/i2c/busses/i2c-imx-lpi2c.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-im= x-lpi2c.c index c3287c887c6f..150d923ca7f1 100644 --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -209,6 +209,9 @@ static int lpi2c_imx_config(struct lpi2c_imx_struct *lp= i2c_imx) lpi2c_imx_set_mode(lpi2c_imx); =20 clk_rate =3D clk_get_rate(lpi2c_imx->clks[0].clk); + if (!clk_rate) + return -EINVAL; + if (lpi2c_imx->mode =3D=3D HS || lpi2c_imx->mode =3D=3D ULTRA_FAST) filt =3D 0; else --=20 2.34.1