Fixes: * iio: adc: mcp3422: fix scale read bug Scale was always returned for the last read input instead of the specified channel. Improvements: * iio: adc: mcp3422: allow setting gain and sampling per channel Sampling was the same for all channels. This patch adds the ability to select different gain and sampling per channel. They can be set together via scale attribute. Sampling can be set also via the standalone attribute which is now per channel. This might be a breaking change for some. * iio: adc: mcp3422: add hardware gain attribute Setting via scale is cumbersome. This patch just adds a concise way to set the gain, since sampling can already be set separately. * iio: adc: mcp3422: reduce sleep for fast sampling rates msleep can produce a delay which is fi. 30ms off the mark. This patch uses usleep_range for the higher sampling rates. Mitja Spes (4): iio: adc: mcp3422: fix scale read bug iio: adc: mcp3422: allow setting gain and sampling per channel iio: adc: mcp3422: add hardware gain attribute iio: adc: mcp3422: reduce sleep for fast sampling rates drivers/iio/adc/mcp3422.c | 161 ++++++++++++++++++++++++-------------- 1 file changed, 103 insertions(+), 58 deletions(-) -- 2.34.1
