Hi, This is the very basic support for the adc introduced with the SAMA5D2 SoC family. The goal is to provide something to the user as soon as possible instead of waiting for a full featured driver. Only unsigned conversions on a software tigger are supported. Next steps are signed conversions, differential channels, hardware triggers, dma support, touchscreen support, and others. Changes: - v3: - Driver file renaming. - Syntax cleanup. - Sampling frequency accessed through read/write_raw. - Cleanup in the IRQ handler. - v2: - Cleanup thanks to Peter Meerwald-Stadler comments (add prefix for macros, remove useless stuff, etc). - Move parameters relative to the SoC to the device tree (min/max sampling rate and startup time). - Use sysfs to configure the sampling frequency. - vddana supply is no more optionnal. - No change for irq since I am not sure it will simplify the code (interrupt is cleared when reading channel conversion result). Jonathan, tell me if I need to rework this part. Ludovic Desroches (5): iio:adc:at91_adc8xx: introduce new atmel adc driver MAINTAINERS: add entry for Atmel ADC 8xx driver ARM: at91/dt: sama5d2: add adc device ARM: at91/dt: sama5d2 Xplained: enable the adc device ARM: at91/defconfig: add sama5d2 adc support in sama5_defconfig .../bindings/iio/adc/at91-sama5d2_adc.txt | 28 ++ MAINTAINERS | 6 + arch/arm/boot/dts/at91-sama5d2_xplained.dts | 22 + arch/arm/boot/dts/sama5d2.dtsi | 18 +- arch/arm/configs/sama5_defconfig | 1 + drivers/iio/adc/Kconfig | 11 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/at91-sama5d2_adc.c | 509 +++++++++++++++++++++ 8 files changed, 590 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt create mode 100644 drivers/iio/adc/at91-sama5d2_adc.c -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html