i2c: sh_mobile: Mark adapter suspended during suspend

Browse source

When a driver tries to send an I2C message while the adapter is
suspended, this typically fails with:

    i2c-sh_mobile e60b0000.i2c: Transfer request timed out

Avoid accessing the adapter while it is suspended by marking it
suspended during suspend.  This allows the I2C core to catch this, and
print a warning:

    WARNING: CPU: 1 PID: 13 at drivers/i2c/i2c-core.h:54
__i2c_transfer+0x4a4/0x4e4
    i2c i2c-6: Transfer while suspended

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

...

This commit is contained in:

Geert Uytterhoeven 2020-10-13 16:12:01 +02:00 • committed by Wolfram Sang

parent 04fd6f0a9e

commit e8a61e5a7e

1 changed files with 28 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

28

drivers/i2c/busses/i2c-sh_mobile.c

View file