From: Amit Kucheria <amit.kucheria@verdurent.com>
To: Jishnu Prakash <jprakash@codeaurora.org>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Matthias Kaehlcke <mka@chromium.org>,
Linus Walleij <linus.walleij@linaro.org>,
Stephen Boyd <sboyd@codeaurora.org>,
Jonathan.Cameron@huawei.com, smohanad@codeaurora.org,
kgunda@codeaurora.org, aghayal@codeaurora.org,
Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-iio@vger.kernel.org,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
linux-arm-msm-owner@vger.kernel.org
Subject: Re: [PATCH 2/3] iio: adc: Add PMIC7 ADC bindings
Date: Fri, 3 Apr 2020 17:41:39 +0530 [thread overview]
Message-ID: <CAHLCerO6GY4pNAxZucCOv3wSDweA1MsuPh5bGjSWoEUauv0iFA@mail.gmail.com> (raw)
In-Reply-To: <1585064650-16235-3-git-send-email-jprakash@codeaurora.org>
Hi Jishnu,
On Tue, Mar 24, 2020 at 9:15 PM Jishnu Prakash <jprakash@codeaurora.org> wrote:
>
> Add documentation for PMIC7 ADC peripheral. For PMIC7 ADC, all SW
> communication to ADC goes through PMK8350, which communicates with
> other PMICs through PBS.
What is PMK8350? What is PBS? Please expand the acronyms and describe
more verbosely.
>
> Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
> ---
> .../bindings/iio/adc/qcom,spmi-vadc.yaml | 28 ++++++++++++++++------
> 1 file changed, 21 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
> index 72db14c..20f010c 100644
> --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
> @@ -13,7 +13,7 @@ maintainers:
> description: |
> SPMI PMIC voltage ADC (VADC) provides interface to clients to read
> voltage. The VADC is a 15-bit sigma-delta ADC.
> - SPMI PMIC5 voltage ADC (ADC) provides interface to clients to read
> + SPMI PMIC5/PMIC7 voltage ADC (ADC) provides interface to clients to read
> voltage. The VADC is a 16-bit sigma-delta ADC.
>
> properties:
> @@ -23,6 +23,7 @@ properties:
> - qcom,spmi-adc5
> - qcom,spmi-adc-rev2
> - qcom,pms405-adc
> + - qcom,spmi-adc7
>
> reg:
> description: VADC base address in the SPMI PMIC register map
> @@ -65,6 +66,8 @@ patternProperties:
> description: |
> ADC channel number.
> See include/dt-bindings/iio/qcom,spmi-vadc.h
> + For PMIC7 ADC, the channel numbers are specified separately per PMIC
> + in the PMIC-specific files in include/dt-bindings/iio/.
>
> label:
> description: |
> @@ -72,7 +75,7 @@ patternProperties:
> For thermistor inputs connected to generic AMUX or GPIO inputs
> these can vary across platform for the same pins. Hence select
> the platform schematics name for this channel. It is required
> - for "qcom,spmi-adc5" and "qcom,spmi-adc-rev2".
> + for "qcom,spmi-adc5", "qcom,spmi-adc7" and "qcom,spmi-adc-rev2".
> allOf:
> - $ref: /schemas/types.yaml#/definitions/string
>
> @@ -85,6 +88,8 @@ patternProperties:
> of 512 will be used.
> - For compatible property "qcom,spmi-adc5", valid values are 250, 420
> and 840. If property is not found, default value of 840 is used.
> + - For compatible property "qcom,spmi-adc7", valid values are 85, 340
> + and 1360. If property is not found, default value of 1360 is used.
> - For compatible property "qcom,spmi-adc-rev2", valid values are 256,
> 512 and 1024. If property is not present, default value is 1024.
> allOf:
> @@ -109,11 +114,11 @@ patternProperties:
> channel calibration. If property is not found, channel will be
> calibrated with 0.625V and 1.25V reference channels, also
> known as absolute calibration.
> - - For compatible property "qcom,spmi-adc5" and "qcom,spmi-adc-rev2",
> - if this property is specified VADC will use the VDD reference (1.875V)
> - and GND for channel calibration. If property is not found, channel
> - will be calibrated with 0V and 1.25V reference channels, also known
> - as absolute calibration.
> + - For compatible property "qcom,spmi-adc5", "qcom,spmi-adc7" and
> + "qcom,spmi-adc-rev2", if this property is specified VADC will use
> + the VDD reference (1.875V) and GND for channel calibration. If
> + property is not found, channel will be calibrated with 0V and 1.25V
> + reference channels, also known as absolute calibration.
> type: boolean
>
> qcom,hw-settle-time:
> @@ -135,6 +140,12 @@ patternProperties:
> Certain controller digital versions have valid values of
> 15, 100, 200, 300, 400, 500, 600, 700, 1, 2, 4, 8, 16, 32, 64, 128 ms
> If property is not found, channel will use 15us.
> + - For compatible property "qcom,spmi-adc7", delay = 15us for
> + value 0, 100us * (value) for values < 8, 1ms for value 8
> + and 2ms * (value - 8) otherwise.
> + Valid values are: 15, 100, 200, 300, 400, 500, 600, 700, 1000, 2000,
> + 4000, 8000, 16000, 32000, 64000, 128000 us.
> + If property is not found, channel will use 15us.
> allOf:
> - $ref: /schemas/types.yaml#/definitions/uint32
>
> @@ -147,6 +158,9 @@ patternProperties:
> - For compatible property "qcom,spmi-vadc", valid values
> are: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512
> If property is not found, 1 sample will be used.
> + - For compatible property "qcom,spmi-adc5", "qcom,spmi-adc7"
> + and "qcom,spmi-adc-rev2", valid values are: 1, 2, 4, 8, 16.
> + If property is not found, 1 sample will be used.
> allOf:
> - $ref: /schemas/types.yaml#/definitions/uint32
>
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-04-03 12:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1585064650-16235-1-git-send-email-jprakash@codeaurora.org>
2020-03-24 15:44 ` [PATCH 1/3] iio: adc: Convert the QCOM SPMI ADC bindings to .yaml format Jishnu Prakash
2020-03-28 16:51 ` Jonathan Cameron
2020-04-06 11:41 ` Jishnu Prakash
2020-03-30 15:38 ` Rob Herring
2020-04-06 11:43 ` Jishnu Prakash
2020-04-03 12:04 ` Amit Kucheria
2020-04-06 11:44 ` Jishnu Prakash
2020-04-14 9:09 ` Amit Kucheria
2020-03-24 15:44 ` [PATCH 2/3] iio: adc: Add PMIC7 ADC bindings Jishnu Prakash
2020-03-28 16:54 ` Jonathan Cameron
2020-04-06 11:45 ` Jishnu Prakash
2020-04-06 16:05 ` Jonathan Cameron
2020-04-03 12:11 ` Amit Kucheria [this message]
2020-04-06 11:45 ` Jishnu Prakash
2020-03-24 15:44 ` [PATCH 3/3] iio: adc: Add support for PMIC7 ADC Jishnu Prakash
2020-03-24 16:33 ` Andy Shevchenko
2020-04-06 11:46 ` Jishnu Prakash
2020-03-28 17:04 ` Jonathan Cameron
2020-04-06 11:46 ` Jishnu Prakash
2020-03-31 20:06 ` Rob Herring
2020-04-06 11:47 ` Jishnu Prakash
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