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It allows usb glue layer driver apply these quirk. Signed-off-by: Frank Li --- drivers/usb/host/xhci-plat.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 31bdfa52eeb25..ecaa75718e592 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -259,6 +259,12 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s if (device_property_read_bool(tmpdev, "write-64-hi-lo-quirk")) xhci->quirks |= XHCI_WRITE_64_HI_LO; + if (device_property_read_bool(tmpdev, "xhci-missing-cas-quirk")) + xhci->quirks |= XHCI_MISSING_CAS; + + if (device_property_read_bool(tmpdev, "xhci-skip-phy-init-quirk")) + xhci->quirks |= XHCI_SKIP_PHY_INIT; + device_property_read_u32(tmpdev, "imod-interval-ns", &xhci->imod_interval); } From patchwork Fri Jul 12 15:40:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 13731900 Received: from AS8PR04CU009.outbound.protection.outlook.com (mail-westeuropeazon11011068.outbound.protection.outlook.com [52.101.70.68]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 45B7F174EC3; 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Signed-off-by: Frank Li --- drivers/usb/dwc3/dwc3-imx8mp.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index 8ee4480685031..5794bb75f7604 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -144,6 +144,17 @@ static irqreturn_t dwc3_imx8mp_interrupt(int irq, void *_dwc3_imx) return IRQ_HANDLED; } +static int dwc3_imx8mp_set_software_node(struct device *dev) +{ + struct property_entry props[3] = {}; + int prop_idx = 0; + + props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-missing-cas-quirk"); + props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-skip-phy-init-quirk"); + + return device_create_managed_software_node(dev, props, NULL); +} + static int dwc3_imx8mp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -226,6 +237,13 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) goto disable_rpm; } + err = dwc3_imx8mp_set_software_node(dev); + if (err) { + err = -ENODEV; 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Fri, 12 Jul 2024 15:40:59 +0000 From: Frank Li Date: Fri, 12 Jul 2024 11:40:29 -0400 Subject: [PATCH 3/4] usb: dwc3: core: add a core init flag for device mode resume Message-Id: <20240712-dwc-mp-v1-3-295e5c4e3ec9@nxp.com> References: <20240712-dwc-mp-v1-0-295e5c4e3ec9@nxp.com> In-Reply-To: <20240712-dwc-mp-v1-0-295e5c4e3ec9@nxp.com> To: Mathias Nyman , Greg Kroah-Hartman , Thinh Nguyen , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, jun.li@nxp.com, Frank Li , Peter Chen X-Mailer: b4 0.13-dev-e586c X-Developer-Signature: v=1; a=ed25519-sha256; t=1720798845; l=1856; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=HDrRGCYGDwol4RWWe1IyBNwBksEIqTK/O4gYUc10XcQ=; b=dTuD710yiij6BtutucldXRLgymp/G1IPzLfJEl9747mFaSdIBXCD5juypswY0CkHmDpGjI+cd BFjuQ43vp0eCqCvsHXr0PlTBDAiO76Vf5S8XA4VEhXNwRxjIi91kddW X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; 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Add a flag to avoid init twice. Reviewed-by: Peter Chen Signed-off-by: Li Jun Signed-off-by: Frank Li --- drivers/usb/dwc3/core.c | 13 +++++++++++++ drivers/usb/dwc3/core.h | 1 + 2 files changed, 14 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 734de2a8bd212..d60917fad8c52 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -950,6 +950,8 @@ static void dwc3_core_exit(struct dwc3 *dwc) dwc3_phy_exit(dwc); dwc3_clk_disable(dwc); reset_control_assert(dwc->reset); + + dwc->core_inited = false; } static bool dwc3_core_is_valid(struct dwc3 *dwc) @@ -1446,6 +1448,8 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_LLUCTL, reg); } + dwc->core_inited = true; + return 0; err_power_off_phy: @@ -2375,6 +2379,15 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) switch (dwc->current_dr_role) { case DWC3_GCTL_PRTCAP_DEVICE: + /* + * system resume may come after runtime resume + * e.g. rpm suspend -> pm suspend -> wakeup + * -> rpm resume -> system resume, so if already + * runtime resumed, system resume should skip it. + */ + if (dwc->core_inited) + break; + ret = dwc3_core_init_for_resume(dwc); if (ret) return ret; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 1e561fd8b86e2..8a4bfd9a25b19 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1195,6 +1195,7 @@ struct dwc3 { struct clk *utmi_clk; struct clk *pipe_clk; + bool core_inited; struct reset_control *reset; struct usb_phy *usb2_phy; From patchwork Fri Jul 12 15:40:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 13731902 Received: from AS8PR04CU009.outbound.protection.outlook.com (mail-westeuropeazon11011010.outbound.protection.outlook.com [52.101.70.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7298D1741EB; Fri, 12 Jul 2024 15:41:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.70.10 ARC-Seal: i=2; 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Fri, 12 Jul 2024 15:41:02 +0000 From: Frank Li Date: Fri, 12 Jul 2024 11:40:30 -0400 Subject: [PATCH 4/4] usb: dwc3: imx8mp: disable SS_CON and U3 wakeup for system sleep Message-Id: <20240712-dwc-mp-v1-4-295e5c4e3ec9@nxp.com> References: <20240712-dwc-mp-v1-0-295e5c4e3ec9@nxp.com> In-Reply-To: <20240712-dwc-mp-v1-0-295e5c4e3ec9@nxp.com> To: Mathias Nyman , Greg Kroah-Hartman , Thinh Nguyen , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, jun.li@nxp.com, Frank Li , Xu Yang X-Mailer: b4 0.13-dev-e586c X-Developer-Signature: v=1; a=ed25519-sha256; t=1720798845; l=2073; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=VbRag4/639rtFHwlkO1MlheNQd7FvEZ1sV+cuNpxmC4=; b=aXc6+SKCt/4bwS6Zek2nqH4bdndGgx9KXOmBz1W71z9gwBV6qag3PRIX/QItCzi2m9plPeidC 3+EXNN1SP0XCi8Gvt8xUt9ETK1Eu2ykXgJFvffpU6x0nUSd9TH+LqxF X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; 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Reviewed-by: Xu Yang Signed-off-by: Li Jun Signed-off-by: Frank Li Acked-by: Thinh Nguyen --- drivers/usb/dwc3/dwc3-imx8mp.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index 5794bb75f7604..9f8c34d09a8e9 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -96,7 +96,8 @@ static void imx8mp_configure_glue(struct dwc3_imx8mp *dwc3_imx) writel(value, dwc3_imx->glue_base + USB_CTRL1); } -static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx) +static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx, + pm_message_t msg) { struct dwc3 *dwc3 = platform_get_drvdata(dwc3_imx->dwc3); u32 val; @@ -106,12 +107,14 @@ static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx) val = readl(dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL); - if ((dwc3->current_dr_role == DWC3_GCTL_PRTCAP_HOST) && dwc3->xhci) - val |= USB_WAKEUP_EN | USB_WAKEUP_SS_CONN | - USB_WAKEUP_U3_EN | USB_WAKEUP_DPDM_EN; - else if (dwc3->current_dr_role == DWC3_GCTL_PRTCAP_DEVICE) + if ((dwc3->current_dr_role == DWC3_GCTL_PRTCAP_HOST) && dwc3->xhci) { + val |= USB_WAKEUP_EN | USB_WAKEUP_DPDM_EN; + if (PMSG_IS_AUTO(msg)) + val |= USB_WAKEUP_SS_CONN | USB_WAKEUP_U3_EN; + } else { val |= USB_WAKEUP_EN | USB_WAKEUP_VBUS_EN | USB_WAKEUP_VBUS_SRC_SESS_VAL; + } writel(val, dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL); } @@ -308,7 +311,7 @@ static int __maybe_unused dwc3_imx8mp_suspend(struct dwc3_imx8mp *dwc3_imx, /* Wakeup enable */ if (PMSG_IS_AUTO(msg) || device_may_wakeup(dwc3_imx->dev)) - dwc3_imx8mp_wakeup_enable(dwc3_imx); + dwc3_imx8mp_wakeup_enable(dwc3_imx, msg); dwc3_imx->pm_suspended = true;