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From: Kathiravan T <kathirav@codeaurora.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Baruch Siach <baruch@tkos.co.il>,
	Rob Herring <robh+dt@kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>,
	Lee Jones <lee.jones@linaro.org>, Andy Gross <agross@kernel.org>,
	Balaji Prakash J <bjagadee@codeaurora.org>,
	Robert Marko <robert.marko@sartura.hr>,
	linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 2/3] dt-bindings: pwm: add IPQ6018 binding
Date: Wed, 30 Jun 2021 20:16:20 +0530	[thread overview]
Message-ID: <5d1bb3b8b0eeedd82a3a6fb02ff5794d@codeaurora.org> (raw)
In-Reply-To: <YLgO0Aj1d4w9EcPv@yoga>

On 2021-06-03 04:35, Bjorn Andersson wrote:
> On Mon 24 May 05:20 CDT 2021, Baruch Siach wrote:
> 
>> DT binding for the PWM block in Qualcomm IPQ6018 SoC.
>> 
>> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
>> ---
>> v2: Make #pwm-cells const (Rob Herring)
>> ---
>>  .../devicetree/bindings/pwm/ipq-pwm.yaml      | 52 
>> +++++++++++++++++++
>>  1 file changed, 52 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
>> 
>> diff --git a/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml 
>> b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
>> new file mode 100644
>> index 000000000000..f85ce808a14e
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
>> @@ -0,0 +1,52 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/pwm/ipq-pwm.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm IPQ6018 PWM controller
>> +
>> +maintainers:
>> +  - Baruch Siach <baruch@tkos.co.il>
>> +
>> +properties:
>> +  "#pwm-cells":
>> +    const: 2
>> +
>> +  compatible:
>> +    const: qcom,pwm-ipq6018
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 1
>> +
>> +  clock-names:
>> +    const: core
>> +
>> +required:
>> +  - "#pwm-cells"
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/qcom,gcc-ipq6018.h>
>> +
>> +    soc {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +
>> +        pwm@1941010 {
>> +            #pwm-cells = <2>;
>> +            compatible = "qcom,pwm-ipq6018";
>> +            reg = <0x0 0x1941010 0x0 0x20>;
> 
> These 32 bytes are in the middle of the TCSR block, which is already
> partially described by the &tcsr_q6 node, which is described as only
> compatible = "syscon" - something no longer accepted by the DT
> maintainers.
> 
> As such, I think we should adjust the &tcsr_q6 definition to cover the
> entire TCSR: 0x01937000 of size 0x21000.
> 

To my knowledge, we can cover the entire TCSR region, so that we can use 
it
for the other features like qcom,dload-mode as well.

> 
> @Rob, should we represent the entire tcsr as a simple-mfd and then have
> the pwm and q6 region as children of that? Or can we make the whole
> thing as a simple-mfd and a syscon and only describe the pwm as a 
> child?
> 
> Regards,
> Bjorn
> 
>> +            clocks = <&gcc GCC_ADSS_PWM_CLK>;
>> +            clock-names = "core";
>> +        };
>> +    };
>> --
>> 2.30.2
>> 

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a 
member of Code Aurora Forum, hosted by The Linux Foundation

  reply	other threads:[~2021-06-30 14:46 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-24 10:20 [PATCH v2 1/3] pwm: driver for qualcomm ipq6018 pwm block Baruch Siach
2021-05-24 10:20 ` Baruch Siach
2021-05-24 10:20 ` [PATCH v2 2/3] dt-bindings: pwm: add IPQ6018 binding Baruch Siach
2021-05-24 10:20   ` Baruch Siach
2021-06-02 19:47   ` Rob Herring
2021-06-02 19:47     ` Rob Herring
2021-06-02 23:05   ` Bjorn Andersson
2021-06-02 23:05     ` Bjorn Andersson
2021-06-30 14:46     ` Kathiravan T [this message]
2021-05-24 10:20 ` [PATCH v2 3/3] arm64: dts: ipq6018: add pwm node Baruch Siach
2021-05-24 10:20   ` Baruch Siach
2021-05-24 14:48 ` [PATCH v2 1/3] pwm: driver for qualcomm ipq6018 pwm block kernel test robot
2021-05-24 16:08 ` kernel test robot

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