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Date: Tue, 19 Mar 2019 21:04:54 +0800
From: Chen-Yu Tsai <wens@...e.org>
To: Maxime Ripard <maxime.ripard@...tlin.com>
Cc: Måns Rullgård <mans@...sr.com>,
Philipp Rossak <embed3d@...il.com>,
Lee Jones <lee.jones@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Russell King <linux@...linux.org.uk>,
Jonathan Cameron <jic23@...nel.org>,
Hartmut Knaack <knaack.h@....de>,
Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald-Stadler <pmeerw@...erw.net>,
eugen.hristev@...rochip.com, Randy Dunlap <rdunlap@...radead.org>,
vilhelm.gray@...il.com, LABBE Corentin <clabbe.montjoie@...il.com>,
Quentin Schulz <quentin.schulz@...tlin.com>,
geert+renesas@...der.be, Lukas Wunner <lukas@...ner.de>,
Icenowy Zheng <icenowy@...c.io>, Arnd Bergmann <arnd@...db.de>,
Mark Brown <broonie@...nel.org>, arnaud.pouliquen@...com,
linux-iio@...r.kernel.org, devicetree <devicetree@...r.kernel.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] Re: [PATCH v3 00/30] IIO-based thermal sensor
driver for Allwinner H3 and A83T SoC
On Tue, Mar 19, 2019 at 8:37 PM Maxime Ripard <maxime.ripard@...tlin.com> wrote:
>
> On Tue, Mar 19, 2019 at 12:30:25PM +0000, Måns Rullgård wrote:
> > Philipp Rossak <embed3d@...il.com> writes:
> >
> > > Allwiner H3 and A83T SoCs have a thermal sensor, which is a large refactored
> > > version of the old Allwinner "GPADC" (although it have already only
> > > thermal part left in A33).
> > >
> > > This patch tried to add support for the sensor in H3 and A83T based on
> > >
> > > This Patchtseries was in the beginning based on Icenowy Zengs v4 patchseries [1]. Since we decided to merge the mfd driver into the GPADC this changed. So only one patch could be reused.
> > >
> > > Patches that adds support for H5, A64, A80 and H6 SoCs are allready prepared,
> > > and will be upstreamed if this patchseries is applied and the testing is done.
> > >
> > > Sorry for delaying this.
> > >
> > > Regards,
> > > Philipp
> > >
> > > changes since v2:
> > > * mfd driver is now merged into the gpadc driver
> > > * complete rework
> > >
> > > changes since v1:
> > > * collecting all acks
> > > * rewording commits/fix typos
> > > * move code in place where it is used
> > > * fix naming conventions of defines
> > > * clarify commits
> > > * update documentation to cover the new nvmem calibraion
> > > * change nvmem calibration
> > >
> > > Icenowy Zheng (1):
> > > iio: adc: sun4i-gpadc-iio: rename A33-specified registers to contain
> > > A33
> > >
> > > Philipp Rossak (29):
> > > mfd: Makefile: Remove build option for MFD:sun4i-gpadc
> > > mfd: Kconfig: Remove MFD_SUN4I_GPADC config option
> > > iio: adc: Remove ID table
> > > iio: adc: Kconfig: Update Kconfig to new build options
> > > iio: adc: move SUN4I_GPADC_CHANNEL define to header file
> > > iio: adc: remove ofnode options
> > > iio: adc: remove mfd_probe & sunwi_irq_init function
> > > iio: adc: remove hwmon structure
> > > iio: adc: Threat A33 as thermal sensor and remove non thermal sun4i
> > > channel
> > > iio: adc: rework irq and adc_channel handling
> > > iio: adc: add new compatibles
> > > mfd: Remove old mfd driver & Move sun4i-gpadc.h to iio/adc/
> > > arm: config: Enable SUN4I_GPADC in defconfig
> > > dt-bindings: update the Allwinner GPADC device tree binding for H3 &
> > > A83T
> > > iio: adc: sun4i-gpadc-iio: rework: readout temp_data
> > > iio: adc: sun4i-gpadc-iio: rework: support clocks and reset
> > > iio: adc: sun4i-gpadc-iio: rework: support multiple sensors
> > > iio: adc: sun4i-gpadc-iio: rework: support nvmem calibration data
> > > iio: adc: sun4i-gpadc-iio: rework: device specific suspend & resume
> > > iio: adc: sun4i-gpadc-iio: add support for H3 thermal sensor
> > > iio: adc: sun4i-gpadc-iio: add support for A83T thermal sensor
> > > ARM: dts: sunxi-h3-h5: add support for the thermal sensor in H3 and H5
> > > ARM: dts: sun8i: h3: add support for the thermal sensor in H3
> > > ARM: dts: sun8i: h3: add thermal zone to H3
> > > ARM: dts: sun8i: h3: enable H3 sid controller
> > > ARM: dts: sun8i: h3: use calibration for ths
> > > ARM: dts: sun8i: a83t: add support for the thermal sensor in A83T
> > > ARM: dts: sun8i: a83t: add thermal zone to A83T
> > > ARM: sun8i: a83t: full range OPP tables and CPUfreq
> > >
> > > .../devicetree/bindings/iio/adc/sun4i-gpadc.txt | 41 +-
> > > arch/arm/boot/dts/sun8i-a83t.dtsi | 143 +++++
> > > arch/arm/boot/dts/sun8i-h3.dtsi | 52 ++
> > > arch/arm/boot/dts/sunxi-h3-h5.dtsi | 10 +
> > > arch/arm/configs/sunxi_defconfig | 1 +
> > > drivers/iio/adc/Kconfig | 11 +-
> > > drivers/iio/adc/sun4i-gpadc-iio.c | 617 +++++++++++++--------
> > > drivers/mfd/Kconfig | 17 -
> > > drivers/mfd/Makefile | 1 -
> > > drivers/mfd/sun4i-gpadc.c | 181 ------
> > > include/linux/{mfd => iio/adc}/sun4i-gpadc.h | 47 +-
> > > 11 files changed, 681 insertions(+), 440 deletions(-)
> > > delete mode 100644 drivers/mfd/sun4i-gpadc.c
> > > rename include/linux/{mfd => iio/adc}/sun4i-gpadc.h (72%)
> >
> > What became of these patches? I can't seem to find any follow-ups. Was
> > the approach abandoned in favour of something else?
>
> It didn't, I don't think we ever got any follow-up to that series so
> that's the main reason it's been held back.
IIRC it was blocked by a disagreement on how to handle the calibration data
in the SID. Hopefully this is now resolved.
ChenYu
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