Re: [PATCH 05/15 v2] iio: accel: kxsd9: Do away with the write2 helper

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On 01/09/16 10:44, Linus Walleij wrote:
> This is just a masquerading register write function, so use the
> register write function instead.
> 
> Tested-by: Jonathan Cameron <jic23@xxxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Applied.  Thanks,

Jonathan
> ---
> ChangeLog v1->v2:
> - Rebase on the rest of the series.
> ---
>  drivers/iio/accel/kxsd9-spi.c | 10 ----------
>  drivers/iio/accel/kxsd9.c     |  4 ++--
>  drivers/iio/accel/kxsd9.h     |  2 --
>  3 files changed, 2 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/iio/accel/kxsd9-spi.c b/drivers/iio/accel/kxsd9-spi.c
> index ec9d00d5340f..a49c10cd7634 100644
> --- a/drivers/iio/accel/kxsd9-spi.c
> +++ b/drivers/iio/accel/kxsd9-spi.c
> @@ -25,15 +25,6 @@ static int kxsd9_spi_writereg(struct kxsd9_transport *tr, u8 address, u8 val)
>  	return spi_write(spi, tr->tx, 2);
>  }
>  
> -static int kxsd9_spi_write2(struct kxsd9_transport *tr, u8 b1, u8 b2)
> -{
> -	struct spi_device *spi = tr->trdev;
> -
> -	tr->tx[0] = b1;
> -	tr->tx[1] = b2;
> -	return spi_write(spi, tr->tx, 2);
> -}
> -
>  static int kxsd9_spi_readval(struct kxsd9_transport *tr, u8 address)
>  {
>  	struct spi_device *spi = tr->trdev;
> @@ -70,7 +61,6 @@ static int kxsd9_spi_probe(struct spi_device *spi)
>  	transport->trdev = spi;
>  	transport->readreg = kxsd9_spi_readreg;
>  	transport->writereg = kxsd9_spi_writereg;
> -	transport->write2 = kxsd9_spi_write2;
>  	transport->readval = kxsd9_spi_readval;
>  	spi->mode = SPI_MODE_0;
>  	spi_setup(spi);
> diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
> index e2033374bfef..a787ec236608 100644
> --- a/drivers/iio/accel/kxsd9.c
> +++ b/drivers/iio/accel/kxsd9.c
> @@ -184,10 +184,10 @@ static int kxsd9_power_up(struct kxsd9_state *st)
>  {
>  	int ret;
>  
> -	ret = st->transport->write2(st->transport, 0x0d, 0x40);
> +	ret = st->transport->writereg(st->transport, KXSD9_REG_CTRL_B, 0x40);
>  	if (ret)
>  		return ret;
> -	return st->transport->write2(st->transport, 0x0c, 0x9b);
> +	return st->transport->writereg(st->transport, KXSD9_REG_CTRL_C, 0x9b);
>  };
>  
>  static const struct iio_info kxsd9_info = {
> diff --git a/drivers/iio/accel/kxsd9.h b/drivers/iio/accel/kxsd9.h
> index 28845c3440e9..b6328e88b56f 100644
> --- a/drivers/iio/accel/kxsd9.h
> +++ b/drivers/iio/accel/kxsd9.h
> @@ -11,7 +11,6 @@ struct kxsd9_transport;
>   * @trdev: transport device such as SPI or I2C
>   * @readreg(): function to read a byte from an address in the device
>   * @writereg(): function to write a byte to an address in the device
> - * @write2(): function to write two consecutive bytes to the device
>   * @readval(): function to read a 16bit value from the device
>   * @rx: cache aligned read buffer
>   * @tx: cache aligned write buffer
> @@ -20,7 +19,6 @@ struct kxsd9_transport {
>  	void *trdev;
>  	int (*readreg) (struct kxsd9_transport *tr, u8 address);
>  	int (*writereg) (struct kxsd9_transport *tr, u8 address, u8 val);
> -	int (*write2) (struct kxsd9_transport *tr, u8 b1, u8 b2);
>  	int (*readval) (struct kxsd9_transport *tr, u8 address);
>  	u8 rx[KXSD9_STATE_RX_SIZE] ____cacheline_aligned;
>  	u8 tx[KXSD9_STATE_TX_SIZE];
> 

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