Hi Lee, On 04/04/2017 10:31, Lee Jones wrote: > On Tue, 21 Mar 2017, Quentin Schulz wrote: > >> The Allwinner SoCs all have an ADC that can also act as a touchscreen >> controller and a thermal sensor. The first four channels can be used >> either for the ADC or the touchscreen and the fifth channel is used for >> the thermal sensor. We currently have a driver for the two latter >> functions in drivers/input/touchscreen/sun4i-ts.c but we don't have >> access to the ADC feature at all. It is meant to replace the current >> driver by using MFD and subdrivers for existing bindings. >> >> The Allwinner A33 only has a thermal sensor present in the GPADC. In >> addition, there is not an existing DT binding for the GPADC. Thus, we do >> not need the sun4i-gpadc MFD driver which was made to keep DT compatibility >> and probe subdrivers without the need to add DT subnodes. >> >> This series of patch adds the thermal sensor for the A33 and GPU/CPU >> thermal throttling. It also adds the cpu-supply property to the CPU node >> needed by the Sinlinx SinA33 and Olinuxino A33 to adapt their CPU regulator >> voltage depending on the currently used OPP. The other A33 boards all have >> their cpu-supply property set. >> >> This series also fixes the missing operating-points-v2 property in cpu DT >> nodes. Finally, it also adds all remaining OPPs which can be found in >> Allwinner 3.4 linux and fex files of all A33 boards. >> >> This series of patch is based on this[1] series of patch. >> >> v3: >> - fixed compatible name in DT and in documentation, >> - fixed DT node name and label, >> - added explanations in commit logs, >> - moved frequencies that need overvolting to board DTS instead of A33 DTSI, >> - fixed a typo in if is_enabled condition, >> - removed all patches concerning Olimex Olinuxino (no HW to test on), > > What is the plan for this series? > > I'm guessing there are no hard dependencies on the ARM parts? > > If not, I'm happy to take the changes to 'drivers/*'. > I've sent a v4 to add some Acked-by and change a few commit "titles". It's ready to be merged with only the following patch required (which Jonathan asked if you could merge it through the mfd tree): "[RESEND PATCH v4] iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs" (https://patchwork.kernel.org/patch/9660879/) Thanks, Quentin >> [1] https://lkml.org/lkml/2016/12/13/298 : "[PATCH v9] add support for Allwinner >> SoCs ADC" >> >> Thanks, >> Quentin >> >> Maxime Ripard (1): >> ARM: sun8i: a33: Add devfreq-based GPU cooling >> >> Quentin Schulz (10): >> ARM: sun8i: a33: add operating-points-v2 property to all nodes >> ARM: sun8i: a33: add all operating points >> ARM: dts: sun8i: sina33: add cpu-supply >> Documentation: DT: bindings: mfd: add A33 GPADC binding >> Documentation: DT: bindings: input: touschcreen: remove sun4i >> documentation >> iio: adc: sun4i-gpadc-iio: move code used in MFD probing to new >> function >> iio: adc: sun4i-gpadc-iio: add support for A33 thermal sensor >> ARM: dtsi: sun8i: a33: add thermal sensor >> ARM: dtsi: sun8i: a33: add CPU thermal throttling >> ARM: sun8i: sina33: add highest OPP of CPUs >> >> .../touchscreen/sun4i.txt => mfd/sun4i-gpadc.txt} | 21 +++ >> arch/arm/boot/dts/sun8i-a23-a33.dtsi | 1 + >> arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts | 18 +++ >> arch/arm/boot/dts/sun8i-a33.dtsi | 141 +++++++++++++++++ >> drivers/iio/adc/Kconfig | 2 +- >> drivers/iio/adc/sun4i-gpadc-iio.c | 170 +++++++++++++++++---- >> include/linux/mfd/sun4i-gpadc.h | 4 + >> 7 files changed, 324 insertions(+), 33 deletions(-) >> rename Documentation/devicetree/bindings/{input/touchscreen/sun4i.txt => mfd/sun4i-gpadc.txt} (64%) >> > -- Quentin Schulz, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- 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
