Messages in this thread | | | Date | Tue, 10 Oct 2023 21:34:20 +0200 | From | Wolfram Sang <> | Subject | Re: [PATCH v3] i2c: aspeed: Fix i2c bus hang in slave read |
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On Fri, Oct 06, 2023 at 10:22:33AM +0800, Jian Zhang wrote: > When the `CONFIG_I2C_SLAVE` option is enabled and the device operates > as a slave, a situation arises where the master sends a START signal > without the accompanying STOP signal. This action results in a > persistent I2C bus timeout. The core issue stems from the fact that > the i2c controller remains in a slave read state without a timeout > mechanism. As a consequence, the bus perpetually experiences timeouts. > > In this case, the i2c bus will be reset, but the slave_state reset is > missing. > > Fixes: fee465150b45 ("i2c: aspeed: Reset the i2c controller when timeout occurs") > Signed-off-by: Jian Zhang <zhangjian.3032@bytedance.com> > Acked-by: Andi Shyti <andi.shyti@kernel.org> > Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au> > Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au> >
Applied to for-current, thanks!
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