This patchset adds support for buffer modes, scan mode and triggers in STM32 DFSDM ADC driver: - 1st patch is an improvement - Patch 2 to 5 are basically precursor patchs that reworks the way to configure the dfsdm for the audio part, so it can be common with the iio part. - Last patchs add support for triggered buffer mode (with scan mode and hardware triggers) Changes in v2: - rework 1st patch to better reflect the contrainsts and explain them, to reflect Jonathan's remarks. - improve patch 7 description to better explain the DFSDM modes, with regard to the userland interface. Fabrice Gasnier (8): iio: adc: stm32-dfsdm: make spi_master_freq more accurate iio: adc: stm32-dfsdm: continuous mode depends on current mode iio: adc: stm32-dfsdm: move dma enable from start_conv() to start_dma() iio: adc: stm32-dfsdm: move dma slave config to start routine iio: adc: stm32-dfsdm: enable hw consumer iio: adc: stm32-dfsdm: add support for scan mode iio: adc: stm32-dfsdm: add support for buffer modes iio: adc: stm32-dfsdm: claim direct mode for raw read and settings drivers/iio/adc/stm32-dfsdm-adc.c | 513 +++++++++++++++++++++++++++++-------- drivers/iio/adc/stm32-dfsdm-core.c | 17 +- 2 files changed, 413 insertions(+), 117 deletions(-) -- 2.7.4