From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: icenowy@aosc.io
Cc: Lee Jones <lee.jones@linaro.org>,
Rob Herring <robh+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jonathan Cameron <jic23@kernel.org>,
Quentin Schulz <quentin.schulz@free-electrons.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
linux-sunxi@googlegroups.com
Subject: Re: [linux-sunxi] Re: [PATCH v4 1/6] dt-bindings: update the Allwinner GPADC device tree binding for H3
Date: Wed, 20 Sep 2017 09:52:23 +0200 [thread overview]
Message-ID: <20170920075223.jaeswlhcqgu4yhse@flea.home> (raw)
In-Reply-To: <e73ead447af89031749e85207cac1e69@aosc.io>
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On Mon, Sep 18, 2017 at 03:47:25PM +0000, icenowy@aosc.io wrote:
> 在 2017-09-18 16:30,Maxime Ripard 写道:
> > On Mon, Sep 18, 2017 at 03:36:43PM +0800, Icenowy Zheng wrote:
> > > 于 2017年9月18日 GMT+08:00 下午3:33:36, Maxime Ripard
> > > <maxime.ripard@free-electrons.com> 写到:
> > > >On Thu, Sep 14, 2017 at 10:52:46PM +0800, Icenowy Zheng wrote:
> > > >> Allwinner H3 features a thermal sensor like the one in A33, but has
> > > >its
> > > >> register re-arranged, the clock divider moved to CCU (originally the
> > > >> clock divider is in ADC) and added a pair of bus clock and reset.
> > > >>
> > > >> Update the binding document to cover H3.
> > > >>
> > > >> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> > > >> Reviewed-by: Chen-Yu Tsai <wens@csie.org>
> > > >> ---
> > > >> Changes in v4:
> > > >> - Add nvmem calibration data (not yet used by the driver)
> > > >> Changes in v3:
> > > >> - Clock name changes.
> > > >> - Example node name changes.
> > > >> - Add interupts (not yet used by the driver).
> > > >>
> > > >> .../devicetree/bindings/mfd/sun4i-gpadc.txt | 30
> > > >++++++++++++++++++++--
> > > >> 1 file changed, 28 insertions(+), 2 deletions(-)
> > > >>
> > > >> diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> > > >b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> > > >> index badff3611a98..6c470d584bf9 100644
> > > >> --- a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> > > >> +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> > > >> @@ -4,12 +4,26 @@ The Allwinner SoCs all have an ADC that can also
> > > >act as a thermal sensor
> > > >> and sometimes as a touchscreen controller.
> > > >>
> > > >> Required properties:
> > > >> - - compatible: "allwinner,sun8i-a33-ths",
> > > >> + - compatible: must contain one of the following compatibles:
> > > >> + - "allwinner,sun8i-a33-ths"
> > > >> + - "allwinner,sun8i-h3-ths"
> > > >> - reg: mmio address range of the chip,
> > > >> - #thermal-sensor-cells: shall be 0,
> > > >> - #io-channel-cells: shall be 0,
> > > >>
> > > >> -Example:
> > > >> +Optional properties:
> > > >> + - nvmem-cells: A phandle to the calibration data provided by a
> > > >nvmem device.
> > > >> + If unspecified default values shall be used.
> > > >> + - nvmem-cell-names: Should be "calibration-data"
> > > >
> > > >I'd prefer to have which sensor it applies to here. It wouldn't change
> > > >anything for the H3, but it definitely does for example for the A83t
> > > >that has two sensors, one for each cluster, and one for the GPU, each
> > > >with calibration data.
> > > >
> > > >What about cluster0-calibration?
>
> I prefer sensor0-calibration to sensor3-calibration now.
> (Theortically the new generation THS can support up to 4 sensors)
The mapping that explains what sensor0 means can change in the
future. It's better to be explicit here, and just say upfront what
it's about.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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next prev parent reply other threads:[~2017-09-20 7:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-14 14:52 [PATCH v4 0/6] IIO-based thermal sensor driver for Allwinner H3 SoC Icenowy Zheng
2017-09-14 14:52 ` [PATCH v4 1/6] dt-bindings: update the Allwinner GPADC device tree binding for H3 Icenowy Zheng
2017-09-16 22:12 ` Jonathan Cameron
2017-09-18 7:33 ` Maxime Ripard
2017-09-18 7:36 ` Icenowy Zheng
2017-09-18 8:30 ` Maxime Ripard
2017-09-18 15:47 ` [linux-sunxi] " icenowy
2017-09-20 7:52 ` Maxime Ripard [this message]
2017-09-20 8:04 ` Icenowy Zheng
2017-09-21 19:32 ` Maxime Ripard
2017-09-14 14:52 ` [PATCH v4 2/6] iio: adc: sun4i-gpadc-iio: rename A33-specified registers to contain A33 Icenowy Zheng
2017-09-18 7:34 ` Maxime Ripard
2017-09-18 8:29 ` Lee Jones
2017-09-14 14:52 ` [PATCH v4 3/6] iio: adc: sun4i-gpadc-iio: rework code for supporting newer THS variants Icenowy Zheng
2017-09-18 7:36 ` Maxime Ripard
2017-09-14 14:52 ` [PATCH v4 4/6] iio: adc: sun4i-gpadc-iio: add support for H3 thermal sensor Icenowy Zheng
2017-09-16 9:45 ` Quentin Schulz
2017-09-16 10:14 ` icenowy
2017-09-16 10:35 ` Quentin Schulz
2017-09-18 8:24 ` Maxime Ripard
2017-09-16 22:16 ` Jonathan Cameron
2017-09-14 14:52 ` [PATCH v4 5/6] ARM: sun8i: h3: add support for the thermal sensor in H3 Icenowy Zheng
2017-09-18 8:25 ` Maxime Ripard
2017-09-14 14:52 ` [PATCH v4 6/6] ARM: sun8i: h3: add partial CPU thermal zone Icenowy Zheng
2017-09-16 10:05 ` Quentin Schulz
2017-09-16 22:17 ` Jonathan Cameron
2017-09-18 8:27 ` Maxime Ripard
2017-09-24 14:23 ` Jonathan Cameron
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