From: Krishna Kurapati PSSNV <quic_kriskura@quicinc.com>
To: Johan Hovold <johan@kernel.org>
Cc: Thinh Nguyen <Thinh.Nguyen@synopsys.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
"Andy Gross" <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
"Konrad Dybcio" <konrad.dybcio@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Felipe Balbi <balbi@kernel.org>,
Wesley Cheng <quic_wcheng@quicinc.com>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
<quic_pkondeti@quicinc.com>, <quic_ppratap@quicinc.com>,
<quic_jackp@quicinc.com>, <ahalaney@redhat.com>,
<quic_shazhuss@quicinc.com>
Subject: Re: [PATCH v13 05/10] usb: dwc3: qcom: Refactor IRQ handling in QCOM Glue driver
Date: Wed, 15 Nov 2023 23:12:16 +0530 [thread overview]
Message-ID: <6d4d959c-b155-471b-b13d-f6fda557cfe0@quicinc.com> (raw)
In-Reply-To: <ZUz4RD3MjnLlPn6V@hovoldconsulting.com>
Hi Johan,
> Are you sure there's no support for hs_phy_irq also in the "femto" PHYs
> and that it's just that there is currently no driver support for using
> them?
>
> And why is it defined if there is truly no use for it?
>
We had an internal sync up with HW folks and here is some baseline
suggestions we received:
If DP/DM interrupts are defined, then that is the preferred path to
used, irrespective if HS Phy irq is defined or not / or whether it is
Femto / QUSB2 target. There is no target that has femto phy but misses
DP/DM today.
For cases like sdm660/msm8998/msm8953/msm8956, these targets use
hs_phy_irq only and don't rely on DP/DM. So we cannot remove the binding
in entirety.
> Also, if hs_phy_irq and dp/dm_phy_irq were mutually exclusive, why does
> the following Qualcomm SoCs define all three?
>
HS Phy Irq is redundant or functionality is mutually exclusive in this
case. If there are targets that define all three, then we need to update
those to only utilize DP/DM interrupts.
Regards,
Krishna,
next prev parent reply other threads:[~2023-11-15 17:43 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-07 15:47 [PATCH v13 00/10] Add multiport support for DWC3 controllers Krishna Kurapati
2023-10-07 15:47 ` [PATCH v13 01/10] usb: dwc3: core: Access XHCI address space temporarily to read port info Krishna Kurapati
2023-10-20 8:32 ` Johan Hovold
2023-10-20 9:42 ` Krishna Kurapati PSSNV
2023-10-23 8:44 ` Johan Hovold
2023-10-07 15:47 ` [PATCH v13 02/10] usb: dwc3: core: Skip setting event buffers for host only controllers Krishna Kurapati
2023-10-20 8:38 ` Johan Hovold
2023-10-07 15:47 ` [PATCH v13 03/10] usb: dwc3: core: Refactor PHY logic to support Multiport Controller Krishna Kurapati
2023-10-12 17:26 ` Thinh Nguyen
2023-10-20 9:57 ` Johan Hovold
2023-10-20 11:41 ` Krishna Kurapati PSSNV
2023-10-23 8:52 ` Johan Hovold
2023-10-22 18:03 ` Krishna Kurapati PSSNV
2023-10-23 9:11 ` Johan Hovold
2023-10-23 12:33 ` Krishna Kurapati PSSNV
2023-10-23 14:10 ` Johan Hovold
2023-10-07 15:48 ` [PATCH v13 04/10] usb: dwc3: qcom: Add helper function to request threaded IRQ Krishna Kurapati
2023-10-20 12:30 ` Johan Hovold
2023-10-07 15:48 ` [PATCH v13 05/10] usb: dwc3: qcom: Refactor IRQ handling in QCOM Glue driver Krishna Kurapati
2023-10-20 13:23 ` Johan Hovold
2023-10-22 18:41 ` Krishna Kurapati PSSNV
2023-10-23 9:21 ` Johan Hovold
2023-10-23 11:24 ` Krishna Kurapati PSSNV
2023-10-23 14:07 ` Johan Hovold
2023-10-23 17:12 ` Krishna Kurapati PSSNV
2023-10-24 6:56 ` Johan Hovold
2023-10-24 8:53 ` Krishna Kurapati PSSNV
2023-10-24 9:18 ` Johan Hovold
2023-10-24 9:23 ` Greg Kroah-Hartman
2023-10-24 9:29 ` Johan Hovold
2023-10-24 9:54 ` Greg Kroah-Hartman
2023-11-03 10:04 ` Krishna Kurapati PSSNV
2023-11-07 8:29 ` Krishna Kurapati PSSNV
2023-11-09 15:18 ` Johan Hovold
2023-11-09 16:38 ` Krishna Kurapati PSSNV
2023-11-09 20:25 ` Wesley Cheng
2023-11-10 9:28 ` Johan Hovold
2023-11-10 9:18 ` Johan Hovold
2023-11-10 10:01 ` Krishna Kurapati PSSNV
2023-11-10 10:44 ` Johan Hovold
2023-11-10 11:09 ` Krishna Kurapati PSSNV
2023-11-15 17:42 ` Krishna Kurapati PSSNV [this message]
2023-11-16 13:03 ` Johan Hovold
2023-11-22 19:32 ` Krishna Kurapati PSSNV
2023-11-23 13:44 ` Johan Hovold
2023-11-24 9:00 ` Krishna Kurapati PSSNV
2023-11-24 9:13 ` Krzysztof Kozlowski
2023-11-24 10:13 ` Johan Hovold
2023-11-24 10:38 ` Krishna Kurapati PSSNV
2023-11-24 11:19 ` Johan Hovold
2023-10-07 15:48 ` [PATCH v13 06/10] usb: dwc3: qcom: Enable wakeup for applicable ports of multiport Krishna Kurapati
2023-10-23 15:47 ` Johan Hovold
2023-10-23 17:27 ` Krishna Kurapati PSSNV
2023-10-24 7:10 ` Johan Hovold
2023-10-24 8:41 ` Krishna Kurapati PSSNV
2023-10-24 9:06 ` Johan Hovold
2023-10-07 15:48 ` [PATCH v13 07/10] usb: dwc3: qcom: Add multiport suspend/resume support for wrapper Krishna Kurapati
2023-10-23 15:58 ` Johan Hovold
2023-10-23 17:22 ` Krishna Kurapati PSSNV
2023-10-24 7:03 ` Johan Hovold
2023-10-07 15:48 ` [PATCH v13 08/10] arm64: dts: qcom: sc8280xp: Add multiport controller node for SC8280 Krishna Kurapati
2023-10-08 11:11 ` Krzysztof Kozlowski
2023-10-08 11:21 ` Krishna Kurapati PSSNV
2023-10-08 11:23 ` Krzysztof Kozlowski
2023-10-12 16:40 ` Konrad Dybcio
2023-10-12 17:02 ` Krishna Kurapati PSSNV
2023-10-18 11:57 ` Krishna Kurapati PSSNV
2023-10-23 16:09 ` Johan Hovold
2023-10-23 17:16 ` Krzysztof Kozlowski
2023-10-23 17:34 ` Krishna Kurapati PSSNV
2023-10-24 7:13 ` Johan Hovold
2023-10-07 15:48 ` [PATCH v13 09/10] arm64: dts: qcom: sa8295p: Enable tertiary controller and its 4 USB ports Krishna Kurapati
2023-10-12 16:40 ` Konrad Dybcio
2023-10-23 16:23 ` Johan Hovold
2023-10-23 17:42 ` Krishna Kurapati PSSNV
2023-10-24 7:20 ` Johan Hovold
2023-10-24 8:26 ` Krishna Kurapati PSSNV
2023-10-07 15:48 ` [PATCH v13 10/10] arm64: dts: qcom: sa8540-ride: Enable first port of tertiary usb controller Krishna Kurapati
2023-10-12 16:41 ` Konrad Dybcio
2023-10-23 16:30 ` Johan Hovold
2023-10-08 10:43 ` [PATCH v13 00/10] Add multiport support for DWC3 controllers Krzysztof Kozlowski
2023-10-08 11:01 ` Krishna Kurapati PSSNV
2023-10-08 11:09 ` Krzysztof Kozlowski
2023-10-10 20:51 ` Konrad Dybcio
2023-10-11 5:11 ` Krishna Kurapati PSSNV
2023-10-11 9:34 ` Konrad Dybcio
2023-10-12 6:17 ` Krishna Kurapati PSSNV
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