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From: Varadarajan Narayanan <quic_varada@quicinc.com>
To: Johan Hovold <johan@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	<agross@kernel.org>, <andersson@kernel.org>,
	<konrad.dybcio@linaro.org>, <vkoul@kernel.org>,
	<kishon@kernel.org>, <robh+dt@kernel.org>,
	<krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>,
	<mturquette@baylibre.com>, <sboyd@kernel.org>,
	<quic_wcheng@quicinc.com>, <linux-arm-msm@vger.kernel.org>,
	<linux-phy@lists.infradead.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
	<linux-clk@vger.kernel.org>
Subject: Re: [PATCH v8 2/8] dt-bindings: phy: qcom,qmp-usb: Add IPQ9574 USB3 PHY
Date: Fri, 21 Apr 2023 15:28:39 +0530	[thread overview]
Message-ID: <20230421095838.GA5813@varda-linux.qualcomm.com> (raw)
In-Reply-To: <ZDz9t9TkBqZ1fcfn@hovoldconsulting.com>

On Mon, Apr 17, 2023 at 10:05:11AM +0200, Johan Hovold wrote:
> On Thu, Apr 06, 2023 at 09:41:49AM +0200, Krzysztof Kozlowski wrote:
> > On 05/04/2023 13:41, Varadarajan Narayanan wrote:
> > > Add dt-bindings for USB3 PHY found on Qualcomm IPQ9574
> > >
> > > Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
> > > ---
> > >  Changes in v8:
> > > 	- Update clock names for ipq9574
> > >
> > >  Changes in v6:
> > > 	- Made power-domains optional
> > >
> > > Note: In the earlier patch sets, had used the (legacy)
> > > specification available in qcom,msm8996-qmp-usb3-phy.yaml. Moved
> > > to newer specification in qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> > > ---
> > >  .../phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml        | 43 +++++++++++++++++++---
> > >  1 file changed, 37 insertions(+), 6 deletions(-)
>
> > > +        clock-names:
> > > +          items:
> > > +            - const: aux
> > > +            - const: ref
> > > +            - const: com_aux
> >
> > Can anyone explain me why do we name these (here and other Qualcomm
> > bindings) based on clock name, not input? Just because different clock
> > is fed to the block, does not necessarily mean the input should be named
> > differently.
>
> I guess part of the answer is that this has just been copied from the
> vendor dts and (almost) no one but Qualcomm has access to the
> documentation. What would the input names be here?
>
> Also note that there are SoCs that enable both 'cfg_ahb' and 'com_aux'
> (e.g. sc7180).

The clock name definitions are auto-generated based on the clock
tree definitions provided by the h/w team. We followed the naming
pattern done in the previous SoCs.

Thanks
Varada

>
> > > +            - const: pipe
> > > +
> > >  examples:
> > >    - |
> > >      #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
>
> Johan

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  reply	other threads:[~2023-04-21  9:59 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-05 11:41 [PATCH v8 0/8] Enable IPQ9754 USB Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 1/8] dt-bindings: phy: qcom,qusb2: Document IPQ9574 compatible Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 2/8] dt-bindings: phy: qcom,qmp-usb: Add IPQ9574 USB3 PHY Varadarajan Narayanan
2023-04-06  7:41   ` Krzysztof Kozlowski
2023-04-17  8:05     ` Johan Hovold
2023-04-21  9:58       ` Varadarajan Narayanan [this message]
2023-04-21 16:27         ` Krzysztof Kozlowski
2023-04-06  7:42   ` Krzysztof Kozlowski
2023-04-21 10:13     ` Varadarajan Narayanan
2023-04-21 14:19       ` Dmitry Baryshkov
2023-04-24  5:24         ` Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 3/8] dt-bindings: usb: dwc3: Add IPQ9574 compatible Varadarajan Narayanan
2023-04-06  7:43   ` Krzysztof Kozlowski
2023-04-21 10:16     ` Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 4/8] clk: qcom: gcc-ipq9574: Add USB related clocks Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 5/8] phy: qcom-qusb2: add QUSB2 support for IPQ9574 Varadarajan Narayanan
2023-04-21 21:08   ` Dmitry Baryshkov
2023-04-05 11:41 ` [PATCH v8 6/8] phy: qcom: qmp: Update IPQ9574 USB Phy initialization Sequence Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 7/8] arm64: dts: qcom: ipq9574: Add USB related nodes Varadarajan Narayanan
2023-04-21 21:07   ` Dmitry Baryshkov
2023-04-24  9:04     ` Varadarajan Narayanan
2023-04-24 11:17       ` Dmitry Baryshkov
2023-04-26  9:51         ` Varadarajan Narayanan
2023-04-27 17:50           ` Dmitry Baryshkov
2023-04-28 11:45             ` Varadarajan Narayanan
2023-04-05 11:41 ` [PATCH v8 8/8] arm64: dts: qcom: ipq9574: Enable USB Varadarajan Narayanan
2023-04-05 13:51 ` [PATCH v8 0/8] Enable IPQ9754 USB Krzysztof Kozlowski

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