sfc: Read-to-clear LM87 alarm/interrupt status at start of day

We do not want to shut down the board based on a fault that has
already been cleared.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index 86180ee..6c20d45 100644 (file)
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -99,6 +99,10 @@ static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
        if (!client)
                return -EIO;
 
+       /* Read-to-clear alarm/interrupt status */
+       i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1);
+       i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2);
+
        rc = efx_poke_lm87(client, reg_values);
        if (rc)
                goto err;