From: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Johan Hovold <johan@kernel.org>
Cc: Krishna Kurapati PSSNV <quic_kriskura@quicinc.com>,
Wesley Cheng <quic_wcheng@quicinc.com>,
Jack Pham <quic_jackp@quicinc.com>,
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>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Felipe Balbi <balbi@kernel.org>,
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,
ahalaney@redhat.com
Subject: Re: [PATCH v8 6/9] usb: dwc3: qcom: Add multiport controller support for qcom wrapper
Date: Fri, 11 Aug 2023 18:48:16 +0200 [thread overview]
Message-ID: <dd622171-a4d3-4143-9e8a-f5a47d3e7916@linaro.org> (raw)
In-Reply-To: <ZLqAHyD5HH6Ka5pl@hovoldconsulting.com>
On 21.07.2023 14:54, Johan Hovold wrote:
> On Fri, Jul 21, 2023 at 02:10:07PM +0200, Konrad Dybcio wrote:
>> On 21.07.2023 13:16, Johan Hovold wrote:
>>> On Fri, Jul 14, 2023 at 04:08:45PM +0530, Krishna Kurapati PSSNV wrote:
>>>> On 7/14/2023 2:30 PM, Johan Hovold wrote:
>>>>> On Mon, Jul 03, 2023 at 12:35:48AM +0530, Krishna Kurapati PSSNV wrote:
>>>>>> On 6/27/2023 9:13 PM, Johan Hovold wrote:
>>>>>>> On Wed, Jun 07, 2023 at 02:16:37PM +0200, Johan Hovold wrote:
>>>>>>>> On Sun, May 14, 2023 at 11:19:14AM +0530, Krishna Kurapati wrote:
>>>>>
>>>>>>>>> - val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG);
>>>>>>>>> - if (!(val & PWR_EVNT_LPM_IN_L2_MASK))
>>>>>>>>> - dev_err(qcom->dev, "HS-PHY not in L2\n");
>>>>>>>>> + for (i = 0; i < dwc->num_usb2_ports; i++) {
>>>>>>>>> + val = readl(qcom->qscratch_base + pwr_evnt_irq_stat_reg_offset[i]);
>>>>>>>>> + if (!(val & PWR_EVNT_LPM_IN_L2_MASK))
>>>>>>>>> + dev_err(qcom->dev, "HS-PHY%d not in L2\n", i);
>>>>>>>>> + }
>>>>>>>
>>>>>>>> When testing this on the X13s I get:
>>>>>>>>
>>>>>>>> dwc3-qcom a4f8800.usb: HS-PHY2 not in L2
>
>> Sidenote, I get this on any Qcom device on any platform I try
>> to enter suspend on, without these MP patches.
>
> Ok, that might provide some hint. But on sc8280xp (X13s) we only get it
> on one of the four MP ports (i.e. on one out of six ports in total).
>
> While on sa8295p-adp there are no such errors on any port.
I've been playing with 8450 and it looks like snps,dis_u2_susphy_quirk
causes this error.
The downstream tree contains this property and I'm inclined to believe
it means that this platforms should define it (as the devicetrees are
machine-generated to a degree, AFAIK), especially since this quirk does
the exact same thing on a known-working downstream, namely unsetting
DWC3_GUSB2PHYCFG_SUSPHY.
Digging a bit deeper, dwc3-msm-core [1], the downstream version of dwc3-qcom
performs a bit of a dance in a couple of places.. Look for that register name.
Unfortunately I have little idea what the "USB2 suspend phy" is.. is it a PHY
used in suspend? Is it the suspension of the USB2 PHY? No clue.
[1] https://git.codelinaro.org/clo/la/kernel/msm-5.10/-/blob/KERNEL.PLATFORM.1.0.r2-08800-WAIPIOLE.0/drivers/usb/dwc3/dwc3-msm-core.c
Konrad
next prev parent reply other threads:[~2023-08-11 16:48 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-14 5:49 [PATCH v8 0/9] Add multiport support for DWC3 controllers Krishna Kurapati
2023-05-14 5:49 ` [PATCH v8 1/9] dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport Krishna Kurapati
2023-05-14 9:46 ` Krzysztof Kozlowski
2023-05-16 10:59 ` Johan Hovold
2023-05-17 11:10 ` Krishna Kurapati PSSNV
2023-05-17 11:44 ` Johan Hovold
2023-05-17 12:19 ` Krishna Kurapati PSSNV
2023-05-17 12:55 ` Johan Hovold
2023-05-14 5:49 ` [PATCH v8 2/9] dt-bindings: usb: Add bindings for multiport properties on DWC3 controller Krishna Kurapati
2023-05-14 5:49 ` [PATCH v8 3/9] usb: dwc3: core: Access XHCI address space temporarily to read port info Krishna Kurapati
2023-05-15 21:08 ` Bjorn Andersson
2023-05-16 2:12 ` Krishna Kurapati PSSNV
2023-05-16 22:39 ` Thinh Nguyen
2023-05-16 12:11 ` Johan Hovold
2023-05-16 15:02 ` Krishna Kurapati PSSNV
2023-05-17 3:10 ` Krishna Kurapati PSSNV
2023-05-17 3:21 ` Thinh Nguyen
2023-05-17 7:46 ` Johan Hovold
2023-05-17 23:21 ` Thinh Nguyen
2023-06-07 11:56 ` Johan Hovold
2023-05-17 7:35 ` Johan Hovold
2023-05-17 12:21 ` Krishna Kurapati PSSNV
2023-05-17 15:10 ` Johan Hovold
2023-05-14 5:49 ` [PATCH v8 4/9] usb: dwc3: core: Skip setting event buffers for host only controllers Krishna Kurapati
2023-05-15 21:19 ` Bjorn Andersson
2023-05-16 12:17 ` Johan Hovold
2023-05-16 14:28 ` Krishna Kurapati PSSNV
2023-05-14 5:49 ` [PATCH v8 5/9] usb: dwc3: core: Refactor PHY logic to support Multiport Controller Krishna Kurapati
2023-05-15 21:47 ` Bjorn Andersson
2023-05-16 2:31 ` Krishna Kurapati PSSNV
2023-05-17 16:17 ` Johan Hovold
2023-05-14 5:49 ` [PATCH v8 6/9] usb: dwc3: qcom: Add multiport controller support for qcom wrapper Krishna Kurapati
2023-05-15 22:27 ` Bjorn Andersson
2023-05-16 2:19 ` Krishna Kurapati PSSNV
2023-05-17 16:37 ` Johan Hovold
2023-05-20 17:48 ` Krishna Kurapati PSSNV
2023-06-07 11:37 ` Johan Hovold
2023-06-07 19:51 ` Krishna Kurapati PSSNV
2023-06-08 9:42 ` Johan Hovold
2023-06-08 15:23 ` Krishna Kurapati PSSNV
2023-06-08 17:57 ` Thinh Nguyen
2023-06-09 8:18 ` Johan Hovold
2023-06-09 18:16 ` Thinh Nguyen
2023-06-15 4:20 ` Krishna Kurapati PSSNV
2023-06-15 21:08 ` Thinh Nguyen
2023-06-21 7:38 ` Johan Hovold
2023-06-22 4:39 ` Krishna Kurapati PSSNV
2023-06-21 7:34 ` Johan Hovold
2023-06-22 22:41 ` Thinh Nguyen
2023-05-26 2:55 ` Bjorn Andersson
2023-05-26 15:25 ` Krishna Kurapati PSSNV
2023-06-07 11:44 ` Johan Hovold
2023-06-07 19:55 ` Krishna Kurapati PSSNV
2023-06-08 9:44 ` Johan Hovold
2023-06-07 12:16 ` Johan Hovold
2023-06-27 15:43 ` Johan Hovold
2023-07-02 19:05 ` Krishna Kurapati PSSNV
2023-07-14 9:00 ` Johan Hovold
2023-07-14 10:38 ` Krishna Kurapati PSSNV
2023-07-21 11:16 ` Johan Hovold
2023-07-21 12:10 ` Konrad Dybcio
2023-07-21 12:54 ` Johan Hovold
2023-08-11 16:48 ` Konrad Dybcio [this message]
2023-08-12 8:58 ` Krishna Kurapati PSSNV
2023-05-14 5:49 ` [PATCH v8 7/9] arm64: dts: qcom: sc8280xp: Add multiport controller node for SC8280 Krishna Kurapati
2023-05-15 14:26 ` Johan Hovold
2023-05-15 15:32 ` Krishna Kurapati PSSNV
2023-05-16 10:54 ` Johan Hovold
2023-05-16 14:24 ` Krishna Kurapati PSSNV
2023-05-16 14:42 ` Johan Hovold
2023-05-16 14:44 ` Krishna Kurapati PSSNV
2023-05-14 5:49 ` [PATCH v8 8/9] arm64: dts: qcom: sa8295p: Enable tertiary controller and its 4 USB ports Krishna Kurapati
2023-05-14 5:49 ` [PATCH v8 9/9] arm64: dts: qcom: sa8540-ride: Enable first port of tertiary usb controller Krishna Kurapati
2023-05-15 2:40 ` [PATCH v8 0/9] Add multiport support for DWC3 controllers Bjorn Andersson
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