On Wed, Oct 12, 2022 at 5:23 PM Olivier Moysan <olivier.moysan@xxxxxxxxxxx> wrote: > > On STM32MP13 SoCs, each ADC peripheral has a single ADC block. > These ADC peripherals, ADC1 and ADC2, are fully independent. > The STM32MP131 SoC provides only ADC2, while other STM32MP13x > SoCs provide both ADC1 and ADC2. > > The STM32MP13 ADC features and characteristics are slightly > different from STM32MP15 ADC ones, requiring a specific support > in the driver. > > This patchset enables the ADC peripheral on STM32MP135F-DK board. > > On STM32MP135F-DK board the ADC is connected to VDDA voltage > provided by the PMIC LOD1 supply, which has to be enabled through > SCMI regulator framework. > This serie introduces a fixed regulator to allow ADC probing, > while SCMI regulators support is not available. This does > not ensure ADC regulator enabling however. FWIW, Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> for patches 1,3, and 4. > Changes in v4: > - reformat patch 1 commit message > - reorder adc1 node > > v3: > - Remove blank line in tag block > - Use HZ_PER_MHZ unit for max frequency definition > - Coding style updates > > v2: > - Rework commit message length > - Add missing spaces > - Remove useless defines > > Olivier Moysan (8): > iio: adc: stm32-adc: fix channel sampling time init > dt-bindings: iio: adc: stm32-adc: add stm32mp13 compatibles > iio: adc: stm32-adc: add stm32mp13 support > iio: adc: stm32: manage min sampling time on all internal channels > ARM: dts: stm32: add adc support to stm32mp13 > ARM: dts: stm32: add adc pins muxing on stm32mp135f-dk > ARM: dts: stm32: add dummy vdd_adc regulator on stm32mp135f-dk > ARM: dts: stm32: add adc support on stm32mp135f-dk > > .../bindings/iio/adc/st,stm32-adc.yaml | 68 ++++- > arch/arm/boot/dts/stm32mp13-pinctrl.dtsi | 7 + > arch/arm/boot/dts/stm32mp131.dtsi | 43 +++ > arch/arm/boot/dts/stm32mp133.dtsi | 31 +++ > arch/arm/boot/dts/stm32mp135f-dk.dts | 33 +++ > drivers/iio/adc/stm32-adc-core.c | 30 ++- > drivers/iio/adc/stm32-adc-core.h | 30 +++ > drivers/iio/adc/stm32-adc.c | 247 +++++++++++++++--- > 8 files changed, 443 insertions(+), 46 deletions(-) > > -- > 2.25.1 > -- With Best Regards, Andy Shevchenko
