| Message ID | 7facef52af9cff6ebe26ff321a7fd4f1ac640f74.1581457290.git.hns@goldelico.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Paul Burton |
| Headers | show |
| Series | MIPS: Fixes and improvements for CI20 board (JZ4780) | expand |
diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c index 16a67a64284a..55b7518435f1 100644 --- a/drivers/i2c/busses/i2c-jz4780.c +++ b/drivers/i2c/busses/i2c-jz4780.c @@ -578,6 +578,9 @@ static void jz4780_i2c_txabrt(struct jz4780_i2c *i2c, int src) { int i; + if (!(src & ~7)) + return; + dev_err(&i2c->adap.dev, "txabrt: 0x%08x\n", src); dev_err(&i2c->adap.dev, "device addr=%x\n", jz4780_i2c_readw(i2c, JZ4780_I2C_TAR));
This suppresses "simple" error reasons ABRT_7B_ADDR_NOACK ABRT_10ADDR1_NOACK ABRT_10ADDR2_NOACK from flooding the console log when running i2cdetect on addresses without a responding slave. Additionally, reading the JZ4780_I2C_TAR in this situation seems to harm the controller state. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> --- drivers/i2c/busses/i2c-jz4780.c | 3 +++ 1 file changed, 3 insertions(+)