linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2017-01-29	iio: adc: stm32: add optional dma support	Fabrice Gasnier	1	-0/+1
	Add DMA optional support to STM32 ADC, as there is a limited number DMA channels (request lines) that can be assigned to ADC. This way, driver may fall back using interrupts when all DMA channels are in use for other IPs. Use dma cyclic mode with two periods. Allow to tune period length by using watermark. Coherent memory is used for dma (max buffer size is fixed to PAGE_SIZE). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-11-19	iio: adc: Add support for STM32 ADC core	Fabrice Gasnier	1	-0/+303
	Add core driver for STMicroelectronics STM32 ADC (Analog to Digital Converter). STM32 ADC can be composed of up to 3 ADCs with shared resources like clock prescaler, common interrupt line and analog reference voltage. This core driver basically manages shared resources. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>