From: Krzysztof Kozlowski <krzk@kernel.org>
To: Jonathan Bakker <xc-racer2@live.ca>
Cc: "Kukjin Kim" <kgene@kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Jonathan Cameron" <jic23@kernel.org>,
"Lars-Peter Clausen" <lars@metafoo.de>,
"Peter Meerwald-Stadler" <pmeerw@pmeerw.net>,
"Paweł Chmiel" <pawel.mikolaj.chmiel@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org
Subject: Re: [PATCH 03/25] dt-bindings: iio: adc: exynos-adc: do not require syscon on S5Pv210
Date: Tue, 8 Sep 2020 08:48:11 +0200 [thread overview]
Message-ID: <20200908064811.GA24227@pi3> (raw)
In-Reply-To: <BN6PR04MB06601B8D0B7F1E51953024E6CB280@BN6PR04MB0660.namprd04.prod.outlook.com>
On Mon, Sep 07, 2020 at 02:49:49PM -0700, Jonathan Bakker wrote:
> Looking at this again, it appears that there is actually control for
> it at offset 0x6818 of pmu_syscon (0xe0108000) [1]. However, it defaults to
> enabled so it's not required for proper use of the block. Whether it should
> be present in the schema/DTS is up to you.
Indeed the driver could turn off the ADC phy via syscon however bindings
(before YAML conversion) explicitly were saying that it is not needed. I
am not going to add it as I am not able to test the change and also
adding such requirement would be a break of ABI (described by first TXT
bindings).
Best regards,
Krzysztof
>
> Thanks,
> Jonathan
>
> [1] https://android.googlesource.com/kernel/samsung/+/refs/heads/android-samsung-3.0-jb-mr0/arch/arm/mach-s5pv210/include/mach/regs-clock.h#325
>
> On 2020-09-07 9:11 a.m., Krzysztof Kozlowski wrote:
> > The ADC in S5Pv210 does not have ADC phy registers in separate block for
> > which syscon would be needed. Remove this requirement to fix dtbs_check
> > warnings like:
> >
> > arch/arm/boot/dts/s5pv210-fascinate4g.dt.yaml: adc@e1700000: 'samsung,syscon-phandle' is a required property
> >
> > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> > ---
> > .../devicetree/bindings/iio/adc/samsung,exynos-adc.yaml | 1 -
> > 1 file changed, 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> > index 89b4f9c252a6..75174af72288 100644
> > --- a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> > +++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> > @@ -81,7 +81,6 @@ allOf:
> > - samsung,exynos-adc-v2
> > - samsung,exynos3250-adc
> > - samsung,exynos4212-adc
> > - - samsung,s5pv210-adc
> > then:
> > required:
> > - samsung,syscon-phandle
> >
next prev parent reply other threads:[~2020-09-08 6:48 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-07 16:11 [PATCH 00/25] ARM: dts: s5pv210: Cleanup - dtschema warnings Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 01/25] dt-bindings: samsung: pmu: document S5Pv210 Krzysztof Kozlowski
2020-09-09 19:36 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 02/25] dt-bindings: iio: adc: exynos-adc: require second interrupt with touch screen Krzysztof Kozlowski
2020-09-07 16:38 ` Jonathan Cameron
2020-09-07 17:11 ` Krzysztof Kozlowski
2020-09-08 20:24 ` Rob Herring
2020-09-08 20:25 ` Rob Herring
2020-09-10 11:55 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 03/25] dt-bindings: iio: adc: exynos-adc: do not require syscon on S5Pv210 Krzysztof Kozlowski
2020-09-07 16:39 ` Jonathan Cameron
2020-09-07 21:49 ` Jonathan Bakker
2020-09-08 6:48 ` Krzysztof Kozlowski [this message]
2020-09-07 16:11 ` [PATCH 04/25] ARM: dts: s5pv210: fix pinctrl property of "vibrator-en" regulator in Aries Krzysztof Kozlowski
2020-09-09 19:39 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 05/25] ARM: dts: s5pv210: remove DMA controller bus node name to fix dtschema warnings Krzysztof Kozlowski
2020-09-07 21:56 ` Jonathan Bakker
2020-09-07 16:11 ` [RFT 06/25] ARM: dts: s5pv210: move fixed clocks under root node Krzysztof Kozlowski
2020-09-07 21:59 ` Jonathan Bakker
2020-09-07 16:11 ` [RFT 07/25] ARM: dts: s5pv210: move PMU node out of clock controller Krzysztof Kozlowski
2020-09-07 22:02 ` Jonathan Bakker
2020-09-07 16:11 ` [RFT 08/25] ARM: dts: s5pv210: remove dedicated 'audio-subsystem' node Krzysztof Kozlowski
2020-09-07 22:41 ` Jonathan Bakker
2020-09-07 16:11 ` [RFT 09/25] ARM: dts: s5pv210: fix number of I2S DAI cells Krzysztof Kozlowski
2020-09-07 23:55 ` Jonathan Bakker
2020-09-08 6:53 ` Krzysztof Kozlowski
2020-09-08 8:38 ` Sylwester Nawrocki
2020-09-07 16:11 ` [PATCH 10/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Aquilla Krzysztof Kozlowski
2020-09-09 19:43 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 11/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Aries family Krzysztof Kozlowski
2020-09-07 23:57 ` Jonathan Bakker
2020-09-08 6:54 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 12/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Goni Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 13/25] ARM: dts: s5pv210: add RTC 32 KHz clock in SMDKC110 Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 14/25] ARM: dts: s5pv210: add RTC 32 KHz clock in SMDKV210 Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 15/25] ARM: dts: s5pv210: add RTC 32 KHz clock in Torbreck Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 16/25] ARM: dts: s5pv210: use defines for GPIO flags in Aquila Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 17/25] ARM: dts: s5pv210: use defines for GPIO flags in Goni Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 18/25] ARM: dts: s5pv210: use defines for IRQ flags in SMDKV210 Krzysztof Kozlowski
2020-09-07 16:11 ` [PATCH 19/25] ARM: dts: s5pv210: use defines for IRQ flags in Goni Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 20/25] ARM: dts: s5pv210: move fixed regulators under root node in Aquila Krzysztof Kozlowski
2020-09-16 17:16 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 21/25] ARM: dts: s5pv210: move fixed regulators under root node in Goni Krzysztof Kozlowski
2020-09-16 17:16 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 22/25] ARM: dts: s5pv210: replace deprecated "gpios" i2c-gpio property in Aquila Krzysztof Kozlowski
2020-09-16 17:17 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 23/25] ARM: dts: s5pv210: replace deprecated "gpios" i2c-gpio property in Goni Krzysztof Kozlowski
2020-09-16 17:17 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 24/25] ARM: dts: s5pv210: align SPI GPIO node name with dtschema in Aries Krzysztof Kozlowski
2020-09-07 23:34 ` Jonathan Bakker
2020-09-09 19:44 ` Krzysztof Kozlowski
2020-09-07 16:11 ` [RFT 25/25] ARM: dts: s5pv210: align DMA channels with dtschema Krzysztof Kozlowski
2020-09-08 0:17 ` Jonathan Bakker
[not found] ` <25178674-e4af-ba35-b7f0-42091208e0e8@live.ca>
2020-09-08 0:28 ` Jonathan Bakker
2020-09-08 6:57 ` Krzysztof Kozlowski
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