i2c: piix4: Use request_muxed_region

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Accesses to SB800_PIIX4_SMB_IDX can occur from multiple drivers.
One example for another driver is the sp5100_tco driver.

Use request_muxed_region() to ensure synchronization.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Guenter Roeck 2018-02-26 12:46:53 -08:00 • committed by Wolfram Sang

parent 0e89b2fec7

commit 04b6fcaba3

1 changed files with 25 additions and 30 deletions

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drivers/i2c/busses/i2c-piix4.c

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