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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PA4PR04MB9640.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 37596fee-af7d-4e84-b2ea-08da90eb3203 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Sep 2022 16:08:25.6851 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: K0VRWx85zmJygw26OzhH8/ldGal9VYwHBzl1H9KOTMxB3hoXvki+YfxvRs/P553a X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB6513 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi > -----Original Message----- > From: Alexander Stein > Sent: Wednesday, September 7, 2022 10:46 PM > To: Greg Kroah-Hartman ; Rob Herring > ; Krzysztof Kozlowski > ; Shawn Guo ; > Sascha Hauer ; Pengutronix Kernel Team > ; Fabio Estevam ; dl-linux-imx > ; Jun Li > Cc: Alexander Stein ; > linux-usb@vger.kernel.org; devicetree@vger.kernel.org; > linux-kernel@vger.kernel.org > Subject: [PATCH 0/4] USB host support for TQMa8MPxL + MBa8MPxL >=20 > Hi everybody, >=20 > this is a series based on the RFC at [1] for USB host support on TQMa8MPx= L > + MBa8MPxL. The main difference is that USB DR support has already been a= dded > and has been removed from this series. >=20 > The DT configuration itself (patch 4) is rather straight forward, but lea= ds > to the following dmesg errors regarding superspeed ports: > > [ 8.549243] hub 2-1:1.0: hub_ext_port_status failed (err =3D -110) > > [ 22.885263] usb 2-1: Failed to suspend device, error -110 >=20 > This hardware works fine using the downstream kernel, because for imx8mp > this ITP sync feature is enabled conditionally [2] & [3]. > Hacking this into mainline resulted in a working superspeed setup as well= . > I also noticed that on some android kernel [4] depending in IP core versi= on > either GCTL.SOFTITPSYNC or GFLADJ.GFLADJ_REFCLK_LPM_SEL is enabled > unconditionally. > So I opted for the latter one using some quirk (patch 1-3). >=20 > I have to admit I do not know what this is actually about, nor why my set= up > does not work without this change or why this fixed my problem. So maybe > someone with more knowledge can say if this is the way to go or what this > is about. This can be updated:) >=20 > I also added snps,dis_u3_susphy_quirk to the board level as for some reas= on > USB Superspeed U3 does not work. Detecting the onboard hub takes much lon= ger > and once all devices are diconnected from the hub it is put into runtime > suspend (U3) and new attached devices are not detected at all. Until the > cause is known and fixed runtime suspend has to be disabled. For this issue you are reporting, I am not sure if this is caused by a USB clock change merged on v5.19, if you use latest kernel, can you try with below patches applied to see if U3 can work for you? [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/1662547028-= 22279-1-git-send-email-jun.li@nxp.com/ [2] https://patchwork.kernel.org/project/linux-arm-kernel/patch/1662547028-= 22279-2-git-send-email-jun.li@nxp.com/ [3] https://patchwork.kernel.org/project/linux-arm-kernel/patch/1661328612-= 3932-1-git-send-email-jun.li@nxp.com/ Li Jun >=20 > Thanks and best regards, > Alexander >=20 > [1] > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flore. > kernel.org%2Fall%2F20220622130440.955465-1-alexander.stein%40ew.tq-grou > p.com%2F&data=3D05%7C01%7Cjun.li%40nxp.com%7Cd1bdfb58b364464e957d08da > 90dfc29f%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63798158796971424 > 0%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6I > k1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3DWSQHERVO9SCWk%2B%2Fmq8g > K78yluy5VE7T%2BhUaDMlNhbWk%3D&reserved=3D0 > [2] > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fsourc > e.codeaurora.org%2Fexternal%2Fimx%2Flinux-imx%2Ftree%2Fdrivers%2Fusb%2F > dwc3%2Fdwc3-imx8mp.c%3Fh%3Dlf-5.10.y%23n134&data=3D05%7C01%7Cjun.li%4 > 0nxp.com%7Cd1bdfb58b364464e957d08da90dfc29f%7C686ea1d3bc2b4c6fa92cd99c5 > c301635%7C0%7C0%7C637981587969870477%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC > 4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7 > C&sdata=3D9%2FxYZoZSelekGcWIZZNwRQqy8LTGPnnn13Rf4L5a0iY%3D&reserv > ed=3D0 > [3] > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fsourc > e.codeaurora.org%2Fexternal%2Fimx%2Flinux-imx%2Ftree%2Fdrivers%2Fusb%2F > dwc3%2Fcore.c%3Fh%3Dlf-5.10.y%23n333&data=3D05%7C01%7Cjun.li%40nxp.co > m%7Cd1bdfb58b364464e957d08da90dfc29f%7C686ea1d3bc2b4c6fa92cd99c5c301635 > %7C0%7C0%7C637981587969870477%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM > DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&s > data=3DOr9hvtM%2F9DhPZbfv%2BKzwAm8QTyXg4y0ddVbMFqOM67Q%3D&reserved=3D= 0 > [4] > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fandro > id.googlesource.com%2Fkernel%2Fmsm%2F%2B%2F87a6b154766907020cc74c7726e8 > a68aaa9d7f6b%255E%2521%2F%23F0&data=3D05%7C01%7Cjun.li%40nxp.com%7Cd1 > bdfb58b364464e957d08da90dfc29f%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7 > C0%7C637981587969870477%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJ > QIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3D3 > tjAzUL81SwFkaoUh56CND%2B27FHqdo6TbY7Z66ldE8Q%3D&reserved=3D0 >=20 > Alexander Stein (4): > dt-bindings: usb: dwc3: Add gfladj-refclk-lpm-sel-quirk > usb: dwc3: core: add gfladj_refclk_lpm_sel quirk > arm64: dts: imx8mp: Add snps,gfladj-refclk-lpm-sel quirk to USB nodes > arm64: dts: tqma8mpql: add support for 2nd USB (host) interface >=20 > .../devicetree/bindings/usb/snps,dwc3.yaml | 5 +++ > .../freescale/imx8mp-tqma8mpql-mba8mpxl.dts | 42 +++++++++++++++++++ > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 2 + > drivers/usb/dwc3/core.c | 8 +++- > drivers/usb/dwc3/core.h | 2 + > 5 files changed, 58 insertions(+), 1 deletion(-) >=20 > -- > 2.25.1