diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 6 | ||||
| -rw-r--r-- | drivers/i2c/i2c-core-base.c | 2 | ||||
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-gpio.c | 14 |
3 files changed, 11 insertions, 11 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 52cf42b32f0a..4aa7dde876f3 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -806,8 +806,12 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, time_left = wait_event_timeout(priv->wait, priv->flags & ID_DONE, num * adap->timeout); - if (!time_left) { + + /* cleanup DMA if it couldn't complete properly due to an error */ + if (priv->dma_direction != DMA_NONE) rcar_i2c_cleanup_dma(priv); + + if (!time_left) { rcar_i2c_init(priv); ret = -ETIMEDOUT; } else if (priv->flags & ID_NACK) { diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 799776c6d421..dc78aa7369de 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -2259,7 +2259,7 @@ EXPORT_SYMBOL(i2c_put_adapter); * * Return: NULL if a DMA safe buffer was not obtained. Use msg->buf with PIO. * Or a valid pointer to be used with DMA. After use, release it by - * calling i2c_release_dma_safe_msg_buf(). + * calling i2c_put_dma_safe_msg_buf(). * * This function must only be called from process context! */ diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 401308e3d036..13882a2a4f60 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -22,18 +22,16 @@ struct gpiomux { struct i2c_mux_gpio_platform_data data; unsigned gpio_base; struct gpio_desc **gpios; - int *values; }; static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val) { - int i; + DECLARE_BITMAP(values, BITS_PER_TYPE(val)); - for (i = 0; i < mux->data.n_gpios; i++) - mux->values[i] = (val >> i) & 1; + values[0] = val; - gpiod_set_array_value_cansleep(mux->data.n_gpios, - mux->gpios, mux->values); + gpiod_set_array_value_cansleep(mux->data.n_gpios, mux->gpios, NULL, + values); } static int i2c_mux_gpio_select(struct i2c_mux_core *muxc, u32 chan) @@ -182,15 +180,13 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) return -EPROBE_DEFER; muxc = i2c_mux_alloc(parent, &pdev->dev, mux->data.n_values, - mux->data.n_gpios * sizeof(*mux->gpios) + - mux->data.n_gpios * sizeof(*mux->values), 0, + mux->data.n_gpios * sizeof(*mux->gpios), 0, i2c_mux_gpio_select, NULL); if (!muxc) { ret = -ENOMEM; goto alloc_failed; } mux->gpios = muxc->priv; - mux->values = (int *)(mux->gpios + mux->data.n_gpios); muxc->priv = mux; platform_set_drvdata(pdev, muxc); |