i2c: rk3x: fix interrupt handling issue

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If slave holds scl, I2C_IPD[7] will be set 1 by controller
for debugging. Driver must ignore it.

[    5.752391] rk3x-i2c ff160000.i2c: unexpected irq in WRITE: 0x80
[    5.939027] rk3x-i2c ff160000.i2c: timeout, ipd: 0x80, state: 4

Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org

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addy ke 2014-08-08 17:41:40 +08:00 • committed by Wolfram Sang

parent 64bdfbfc76

commit 9c5f7cad3a

1 changed files with 1 additions and 1 deletions

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drivers/i2c/busses/i2c-rk3x.c

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