diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-rcar.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 26f2ff22e97e..214bf2835d1f 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -700,6 +700,8 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, pm_runtime_get_sync(dev); + rcar_i2c_init(priv); + ret = rcar_i2c_bus_barrier(priv); if (ret < 0) goto out; @@ -751,6 +753,7 @@ static int rcar_reg_slave(struct i2c_client *slave) if (slave->flags & I2C_CLIENT_TEN) return -EAFNOSUPPORT; + /* Keep device active for slave address detection logic */ pm_runtime_get_sync(rcar_i2c_priv_to_dev(priv)); priv->slave = slave; @@ -854,15 +857,14 @@ static int rcar_i2c_probe(struct platform_device *pdev) priv->dma_direction = DMA_NONE; priv->dma_rx = priv->dma_tx = ERR_PTR(-EPROBE_DEFER); + /* Activate device for clock calculation */ pm_runtime_enable(dev); pm_runtime_get_sync(dev); ret = rcar_i2c_clock_calculate(priv, &i2c_t); if (ret < 0) goto out_pm_put; - rcar_i2c_init(priv); - - /* Don't suspend when multi-master to keep arbitration working */ + /* Stay always active when multi-master to keep arbitration working */ if (of_property_read_bool(dev->of_node, "multi-master")) priv->flags |= ID_P_PM_BLOCKED; else |