Re: [PATCH v3 1/5] iio: light: vcnl4000 use word writes instead of byte writes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, 21 Mar 2019 08:40:43 -0700
"Angus Ainslie (Purism)" <angus@xxxxxxxx> wrote:

> The VCNL4200 datasheet says that word read and writes should be used
> to access the registers.
> 
> Signed-off-by: Angus Ainslie (Purism) <angus@xxxxxxxx>
> Tested-by: Tomas Novotny <tomas@xxxxxxxxxx>

So we did discuss if this was a fix for any of the existing devices.
Not sure we reached a conclusion as clearly the worked for Tomas without
this.  Anyhow, for now applied to the togreg branch of iio.git and pushed
out as testing for the autobuilders to play with it.

Thanks,

Jonathan

> ---
>  drivers/iio/light/vcnl4000.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
> index 04fd0d4b6f19..5e0a8eb83ebc 100644
> --- a/drivers/iio/light/vcnl4000.c
> +++ b/drivers/iio/light/vcnl4000.c
> @@ -140,10 +140,10 @@ static int vcnl4200_init(struct vcnl4000_data *data)
>  	data->rev = (ret >> 8) & 0xf;
>  
>  	/* Set defaults and enable both channels */
> -	ret = i2c_smbus_write_byte_data(data->client, VCNL4200_AL_CONF, 0x00);
> +	ret = i2c_smbus_write_word_data(data->client, VCNL4200_AL_CONF, 0);
>  	if (ret < 0)
>  		return ret;
> -	ret = i2c_smbus_write_byte_data(data->client, VCNL4200_PS_CONF1, 0x00);
> +	ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF1, 0);
>  	if (ret < 0)
>  		return ret;
>  




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux