diff options
| author | Alain Volmat <alain.volmat@foss.st.com> | 2021-09-20 17:21:30 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-11-30 10:22:07 +0100 |
| commit | b933d1faf8fa30d16171bcff404e39c41b2a7c84 (patch) | |
| tree | 2abad6bc8b5756ae373c9195e2be7589d1e70247 /drivers/i2c | |
| parent | 0c21d02ca469574d2082379db52d1a27b99eed0c (diff) | |
i2c: stm32f7: recover the bus on access timeout
When getting an access timeout, ensure that the bus is in a proper
state prior to returning the error.
Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-stm32f7.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index ed977b6f7ab6..ad3459a3bc5e 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -1712,6 +1712,7 @@ static int stm32f7_i2c_xfer(struct i2c_adapter *i2c_adap, i2c_dev->msg->addr); if (i2c_dev->use_dma) dmaengine_terminate_all(dma->chan_using); + stm32f7_i2c_wait_free_bus(i2c_dev); ret = -ETIMEDOUT; } @@ -1769,6 +1770,7 @@ static int stm32f7_i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, dev_dbg(dev, "Access to slave 0x%x timed out\n", f7_msg->addr); if (i2c_dev->use_dma) dmaengine_terminate_all(dma->chan_using); + stm32f7_i2c_wait_free_bus(i2c_dev); ret = -ETIMEDOUT; goto pm_free; } |