On 11/05/13 13:28, Jonathan Cameron wrote:
> Thanks. Given interesting merge window might be a few weeks before it hits mainline.
>
> Angelo Compagnucci <angelo.compagnucci@xxxxxxxxx> wrote:
>> Hi jonathan,
>>
>> Yes, this patch should be applied.
>>
>> Acked-by: Angelo Compagnucci <angelo.compagnucci@xxxxxxxxx>
Applied to the fixes-togreg branch of iio.git
Thanks,
>>
>> 2013/11/4 Jonathan Cameron <jic23@xxxxxxxxxx>:
>>> On 11/02/13 22:09, Angelo Compagnucci wrote:
>>>> Hi Peter,
>>>>
>>>> You are totally right, index is 0 based and this is a bug!
>>>>
>>>> Thank your for fixing!
>>> If you are happy with a patch that effects your code, the convention
>> is
>>> to reply with
>>>
>>> Acked-by: Angelo Compagnucci <angelo.compagnucci@xxxxxxxxx>
>>>
>>> to indicate this in the commit log.
>>>
>>> Do you mind me adding that to this patch?
>>>>
>>>> 2013/11/2 Peter Meerwald <pmeerw@xxxxxxxxxx>:
>>>>> the index argument to sign_extend32() gives the bit position (from
>> 0)
>>>>> to the sign bit
>>>>>
>>>>> so e.g. if the measurement has 16-bit resolution, we need to pass
>> 15;
>>>>> a measurement of 0x8000 should be reported as -32768, not 32768
>>>>>
>>>>> Signed-off-by: Peter Meerwald <pmeerw@xxxxxxxxxx>
>>>>> Cc: Angelo Compagnucci <angelo.compagnucci@xxxxxxxxx>
>>>>> ---
>>>>> drivers/iio/adc/mcp3422.c | 8 ++++----
>>>>> 1 file changed, 4 insertions(+), 4 deletions(-)
>>>>>
>>>>> diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
>>>>> index 1294832..c8c1baa 100644
>>>>> --- a/drivers/iio/adc/mcp3422.c
>>>>> +++ b/drivers/iio/adc/mcp3422.c
>>>>> @@ -88,10 +88,10 @@ static const int mcp3422_sample_rates[4] = {
>>>>>
>>>>> /* sample rates to sign extension table */
>>>>> static const int mcp3422_sign_extend[4] = {
>>>>> - [MCP3422_SRATE_240] = 12,
>>>>> - [MCP3422_SRATE_60] = 14,
>>>>> - [MCP3422_SRATE_15] = 16,
>>>>> - [MCP3422_SRATE_3] = 18 };
>>>>> + [MCP3422_SRATE_240] = 11,
>>>>> + [MCP3422_SRATE_60] = 13,
>>>>> + [MCP3422_SRATE_15] = 15,
>>>>> + [MCP3422_SRATE_3] = 17 };
>>>>>
>>>>> /* Client data (each client gets its own) */
>>>>> struct mcp3422 {
>>>>> --
>>>>> 1.8.4.2
>>>>>
>>>>
>>>>
>>>>
>
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