From: Gao Pan <pandy.gao@xxxxxxx>
add debug message when i2c peripheral clk rate is 0, then
directly return -EINVAL.
Signed-off-by: Gao Pan <pandy.gao@xxxxxxx>
Reviewed-by: Andy Duan <fugang.duan@xxxxxxx>
---
drivers/i2c/busses/i2c-imx-lpi2c.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
index e718bb6b2387..8f9dd3dd2951 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@ -209,7 +209,12 @@ static int lpi2c_imx_config(struct lpi2c_imx_struct *lpi2c_imx)
lpi2c_imx_set_mode(lpi2c_imx);
- clk_rate = clk_get_rate(lpi2c_imx->clk);
+ clk_rate = clk_get_rate(lpi2c_imx->clk_per);
+ if (!clk_rate) {
+ dev_dbg(&lpi2c_imx->adapter.dev, "clk_per rate is 0\n");
+ return -EINVAL;
+ }
+
if (lpi2c_imx->mode == HS || lpi2c_imx->mode == ULTRA_FAST)
filt = 0;
else
--
2.25.1
