i2c: imx-lpi2c: return -EINVAL when i2c peripheral clk doesn't work

Browse source

[ Upstream commit b610c4bbd1 ]

On MX8X platforms, the default clock rate is 0 if without explicit
clock setting in dts nodes. I2c can't work when i2c peripheral clk
rate is 0.

Add a i2c peripheral clk rate check before configuring the clock
register. When i2c peripheral clk rate is 0 and directly return
-EINVAL.

Signed-off-by: Carlos Song <carlos.song@nxp.com>
Acked-by: Dong Aisheng <Aisheng.dong@nxp.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Carlos Song 2023-07-26 17:22:38 +08:00 • committed by Greg Kroah-Hartman

parent e1417c7dc3

commit d1e1bdd30a

1 changed files with 3 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/i2c/busses/i2c-imx-lpi2c.c

View file