Re: [PATCH v4 0/8] iio: stm32-adc: add support of adc for stm32mp13

Jonathan Cameron
2022-10-15T16:02:19Z

On Fri, 14 Oct 2022 14:52:49 +0200
Fabrice Gasnier <fabrice.gasnier@foss.st.com> wrote:

> On 10/12/22 16:21, Olivier Moysan 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.
>
>
> Hi Olivier,
>
> I've one tiny remark on PATCH 5/8, "ARM: dts: stm32: add adc support to
> stm32mp13"
>
> With that fixed, for the whole series, you can add my:
>
> Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>

Applied 1 to the the fixes-togreg branch of iio.git and
2,3,4 to the togreg branch of iio.git (pushed out as testing only
until I can rebase on rc1).

No overlap in code affected, so this should work fine and means
I don't have to remember to pick up the non fixes later in the cycle.

Thanks,

Jonathan

>
> Thanks,
> Fabrice
>
> >
> > 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(-)
> >