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i2c: i2c-stm32f7: fix 10-bits check in slave free id search loop

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commit 7787657d7ee55a9ecf4aea4907b46b87a44eda67 upstream.

Fix a typo in the free slave id search loop. Instead of I2C_CLIENT_PEC,
it should have been I2C_CLIENT_TEN. The slave id 1 can only handle 7-bit
addresses and thus is not eligible in case of 10-bit addresses.
As a matter of fact none of the slave id support I2C_CLIENT_PEC, overall
check is performed at the beginning of the stm32f7_i2c_reg_slave function.

Fixes: 60d609f30d ("i2c: i2c-stm32f7: Add slave support")
Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alain Volmat 2019-11-12 09:19:44 +01:00 • committed by Greg Kroah-Hartman
commit 45f884c2ad
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/busses/i2c-stm32f7.c
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@ -1268,7 +1268,7 @@ static int stm32f7_i2c_get_free_slave_id(struct stm32f7_i2c_dev *i2c_dev,
* slave[1] supports 7-bit slave address only
*/
for (i = STM32F7_I2C_MAX_SLAVE - 1; i >= 0; i--) {
if (i == 1 && (slave->flags & I2C_CLIENT_PEC))
if (i == 1 && (slave->flags & I2C_CLIENT_TEN))
continue;
if (!i2c_dev->slave[i]) {
*id = i;