From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4FB43C44512 for ; Thu, 16 Jul 2026 16:12:24 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id D6B2C84DBD; Thu, 16 Jul 2026 18:09:13 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="YSSgKABN"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 1D76B84CEB; Thu, 16 Jul 2026 15:43:41 +0200 (CEST) Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id C6A6284C3F for ; Thu, 16 Jul 2026 15:43:38 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=anders.roxell@linaro.org Received: by mail-ed1-x535.google.com with SMTP id 4fb4d7f45d1cf-698c1df9651so994081a12.0 for ; Thu, 16 Jul 2026 06:43:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1784209418; x=1784814218; darn=lists.denx.de; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=AfvBCVw2qLi6sYHssiJ72fr0bJZJc3/jrhsLWMSVyvc=; b=YSSgKABNjxs3AukzqqlKwzJUALxjx2i8BYchIrffGAiHfyG9PXTMkpl/QaWuKLh0HY eXm6d0jEHfTNX0MoD2Ryczmt0REOdo0vngC1t0uDy7OMRLNEOvfIz2b4h7Goy/wEl+n+ 3Q+NyVNby8UcqFbNdT9c6tMywW8pNZkdcTPYTMfyfXIRHcGNtpgU18F5dC477dlmHmOk MFJA1/82DgpKT8FckmDheSxD1f8nKPuP6fOvgiKdGGOFSzXlD37KNRDG8FpvEchWrmJD ctk0E9+5z1gaAw6m0VIhA93mC/5axhKi/CGIQ70SjS8J50oryKe+4rT+zR7QFHiU88BC 42wQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784209418; x=1784814218; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=AfvBCVw2qLi6sYHssiJ72fr0bJZJc3/jrhsLWMSVyvc=; b=LQ9yxcE/MLXitIidgdD8C3DLQ5vctgLJpgMVCFHgI/c7TiDcySAe/P5aG/jggAg0TC Arw1fySqEGbuHRdUzHl6x2N2Z51CE6kXd0L60YIb9DvsJzFbT1vzO3Pkebf0/YiAKBrb f0Ao6WMQ2sanT+Md3AMMSc15pOIfcaGzu9fLs+wINjpX1bzg8TMcSBe/8W2XFTYfKBRL dqa82adFilcBH7xeOi+BREN6ISZMY18i99YUHKEtnnqNIE3eKHRpFmqkUsg27pCssVCJ EcjPBWwQB0CjHXF5sXJ0nA7VmXP0qLKt8eoHq9quJtl/0+0X2dSpIGzDASodWruV/TdZ ch/w== X-Gm-Message-State: AOJu0YwHdo0SGvw1bpUEyFpP+E+L7557Gpr1jAil0HKMU4KiB0uA49BX faIUmN6vprTjQrXmVJp9DhSDMu/kICwBJ2Yd/o9kcwRwkWav6poLRrMAz3ZiM29biAyA6RVWLL1 u7TI1 X-Gm-Gg: AfdE7ckPTZ5B3LIz2gE8UpTs6wjGagBijs5v4NMCppBgsGUrFpmlYKFKqXvhAulylo2 j5SVpPSBBeNkvhlD4J7W40xmWZIyH8gG9kpPBvXCAvW3vnrg+z8kvL1pg99RJRWymMnH1AOppr/ ruxHVuXIpckQxOx8RX/ajlOwX8MaFKlkSS2Jtj9Pn1h58WBRr6j7Sc1ijyQGlVNvMVpXyw1PaSk yUFLFVoiwhMJL6c/OxvRl8VbYufGO7ThR7KlphSHWC2EmjR09Ftu2Dg2YIfdhQd7xUFyYLC6YpR dKEusBeo85eKAzmw5kKYPTqtNN+lCGateZvFHPaMRpZsg0EZVzpb+hAws40B6mjMaFp/nGzmvjn UcIBL7sFzVkBavOoyOuJ634tko6kCL3Qf+9BA9TKoFS79nWiBa4gGEKMKeHXBcRskYoUEORrdwk oo/5/UTnDd/bCV00RHhCbDWGZVnlcvWIqw69VMHBvUcaZpWq2C X-Received: by 2002:a05:6402:51c6:b0:697:f633:47ca with SMTP id 4fb4d7f45d1cf-69e2e595ff8mr911232a12.6.1784209418016; Thu, 16 Jul 2026 06:43:38 -0700 (PDT) Received: from localhost (c-85-229-7-191.bbcust.telenor.se. [85.229.7.191]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69cd26e239esm4672004a12.0.2026.07.16.06.43.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jul 2026 06:43:37 -0700 (PDT) From: Anders Roxell To: u-boot@lists.denx.de, marex@denx.de Cc: mkorpershoek@kernel.org, ilias.apalodimas@linaro.org, trini@konsulko.com, michal.simek@amd.com, alchark@flipper.net, jerome.forissier@arm.com, Jens Wiklander , Anders Roxell , Lukasz Majewski Subject: [PATCH v5 19/75] usb: dwc3: import from kernel v4.16 Date: Thu, 16 Jul 2026 15:41:49 +0200 Message-ID: <20260716134305.614278-20-anders.roxell@linaro.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260716134305.614278-1-anders.roxell@linaro.org> References: <20260716134305.614278-1-anders.roxell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Thu, 16 Jul 2026 18:09:05 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean From: Jens Wiklander Sync Linux kernel dwc3 changes from v4.15 to v4.16. The following files are preserved accross the import: Makefile Kconfig dwc3-meson-g12a.c dwc3-meson-gxl.c dwc3-omap.c dwc3-uniphier.c dwc3-generic.h dwc3-generic.c dwc3-generic-sti.c dwc3-layerscape.c ti_usb_phy.c Skipping unused files: debugfs.c drd.c dwc3-exynos.c dwc3-haps.c dwc3-imx8mp.c dwc3-keystone.c dwc3-octeon.c dwc3-of-simple.c dwc3-pci.c dwc3-qcom.c dwc3-qcom-legacy.c dwc3-rtk.c dwc3-st.c dwc3-xilinx.c host.c trace.c trace.h ulpi.c Note that this is a raw import and doesn't build. A fixup commit at the end of the series fixes that. List of commits: git log --oneline v4.15..v4.16 Commits imported: 084a804e0120 usb: dwc3: Fix lock-up on ID change during system suspend/resume 98112041bcca usb: dwc3: core: Fix ULPI PHYs and prevent phy_get/ulpi_init during suspend/resume b16ea8b9492e usb: dwc3: Fix GDBGFIFOSPACE_TYPE values c49f63055e25 usb: dwc3: omap: don't miss events during suspend/resume c4a5153e87fd usb: dwc3: core: Power-off core/PHYs on system_suspend in host mode 00b42170c86f usb: dwc3: Undo PHY init if soft reset fails f035d139ffec usb: dwc3: ep0: Reset TRB counter for ep0 IN 6180026341e8 usb: dwc3: gadget: Set maxpacket size for ep0 IN bff52352e0cc usb: dwc3: of-simple: fix oops by unbalanced clk disable call d8c80bb3b55b phy: exynos5-usbdrd: Calibrate LOS levels for exynos5420/5800 42bf02ec6e42 usb: dwc3: Allow disabling of metastability workaround 204ec1af6257 usb: dwc3: Make sparse a bit happier 19e0b203bfbd usb: dwc3: ep0: use gadget->isoch_delay for isoch_delay value 0c5d2954f690 usb: dwc3: debug: decode a few more features Signed-off-by: Jens Wiklander Signed-off-by: Anders Roxell --- drivers/usb/dwc3/core.c | 93 ++++++++++++++++++++++++++++----------- drivers/usb/dwc3/core.h | 26 +++++++---- drivers/usb/dwc3/debug.h | 9 ++++ drivers/usb/dwc3/ep0.c | 13 +++--- drivers/usb/dwc3/gadget.c | 8 +++- 5 files changed, 106 insertions(+), 43 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 07832509584f..e94bf91cc58a 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -100,6 +100,8 @@ static void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode) reg &= ~(DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG)); reg |= DWC3_GCTL_PRTCAPDIR(mode); dwc3_writel(dwc->regs, DWC3_GCTL, reg); + + dwc->current_dr_role = mode; } static void __dwc3_set_mode(struct work_struct *work) @@ -133,8 +135,6 @@ static void __dwc3_set_mode(struct work_struct *work) dwc3_set_prtcap(dwc, dwc->desired_dr_role); - dwc->current_dr_role = dwc->desired_dr_role; - spin_unlock_irqrestore(&dwc->lock, flags); switch (dwc->desired_dr_role) { @@ -147,6 +147,7 @@ static void __dwc3_set_mode(struct work_struct *work) otg_set_vbus(dwc->usb2_phy->otg, true); phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST); phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST); + phy_calibrate(dwc->usb2_generic_phy); } break; case DWC3_GCTL_PRTCAP_DEVICE: @@ -174,7 +175,7 @@ void dwc3_set_mode(struct dwc3 *dwc, u32 mode) dwc->desired_dr_role = mode; spin_unlock_irqrestore(&dwc->lock, flags); - queue_work(system_power_efficient_wq, &dwc->drd_work); + queue_work(system_freezable_wq, &dwc->drd_work); } u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type) @@ -218,7 +219,7 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc) * XHCI driver will reset the host block. If dwc3 was configured for * host-only mode, then we can return early. */ - if (dwc->dr_mode == USB_DR_MODE_HOST) + if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_HOST) return 0; reg = dwc3_readl(dwc->regs, DWC3_DCTL); @@ -233,6 +234,9 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc) udelay(1); } while (--retries); + phy_exit(dwc->usb3_generic_phy); + phy_exit(dwc->usb2_generic_phy); + return -ETIMEDOUT; } @@ -482,6 +486,22 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8); } +static int dwc3_core_ulpi_init(struct dwc3 *dwc) +{ + int intf; + int ret = 0; + + intf = DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3); + + if (intf == DWC3_GHWPARAMS3_HSPHY_IFC_ULPI || + (intf == DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI && + dwc->hsphy_interface && + !strncmp(dwc->hsphy_interface, "ulpi", 4))) + ret = dwc3_ulpi_init(dwc); + + return ret; +} + /** * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core * @dwc: Pointer to our controller context structure @@ -493,7 +513,6 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) static int dwc3_phy_setup(struct dwc3 *dwc) { u32 reg; - int ret; reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); @@ -564,9 +583,6 @@ static int dwc3_phy_setup(struct dwc3 *dwc) } /* FALLTHROUGH */ case DWC3_GHWPARAMS3_HSPHY_IFC_ULPI: - ret = dwc3_ulpi_init(dwc); - if (ret) - return ret; /* FALLTHROUGH */ default: break; @@ -723,6 +739,7 @@ static void dwc3_core_setup_global_control(struct dwc3 *dwc) } static int dwc3_core_get_phy(struct dwc3 *dwc); +static int dwc3_core_ulpi_init(struct dwc3 *dwc); /** * dwc3_core_init - Low-level initialization of DWC3 Core @@ -754,17 +771,27 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc->maximum_speed = USB_SPEED_HIGH; } - ret = dwc3_core_get_phy(dwc); + ret = dwc3_phy_setup(dwc); if (ret) goto err0; - ret = dwc3_core_soft_reset(dwc); - if (ret) - goto err0; + if (!dwc->ulpi_ready) { + ret = dwc3_core_ulpi_init(dwc); + if (ret) + goto err0; + dwc->ulpi_ready = true; + } - ret = dwc3_phy_setup(dwc); + if (!dwc->phys_ready) { + ret = dwc3_core_get_phy(dwc); + if (ret) + goto err0a; + dwc->phys_ready = true; + } + + ret = dwc3_core_soft_reset(dwc); if (ret) - goto err0; + goto err0a; dwc3_core_setup_global_control(dwc); dwc3_core_num_eps(dwc); @@ -837,6 +864,9 @@ err1: phy_exit(dwc->usb2_generic_phy); phy_exit(dwc->usb3_generic_phy); +err0a: + dwc3_ulpi_exit(dwc); + err0: return ret; } @@ -915,7 +945,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) switch (dwc->dr_mode) { case USB_DR_MODE_PERIPHERAL: - dwc->current_dr_role = DWC3_GCTL_PRTCAP_DEVICE; dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); if (dwc->usb2_phy) @@ -931,7 +960,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) } break; case USB_DR_MODE_HOST: - dwc->current_dr_role = DWC3_GCTL_PRTCAP_HOST; dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); if (dwc->usb2_phy) @@ -945,6 +973,7 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) dev_err(dev, "failed to initialize host\n"); return ret; } + phy_calibrate(dwc->usb2_generic_phy); break; case USB_DR_MODE_OTG: INIT_WORK(&dwc->drd_work, __dwc3_set_mode); @@ -1062,6 +1091,9 @@ static void dwc3_get_properties(struct dwc3 *dwc) device_property_read_u32(dev, "snps,quirk-frame-length-adjustment", &dwc->fladj); + dwc->dis_metastability_quirk = device_property_read_bool(dev, + "snps,dis_metastability_quirk"); + dwc->lpm_nyet_threshold = lpm_nyet_threshold; dwc->tx_de_emphasis = tx_de_emphasis; @@ -1229,7 +1261,6 @@ err4: err3: dwc3_free_event_buffers(dwc); - dwc3_ulpi_exit(dwc); err2: pm_runtime_allow(&pdev->dev); @@ -1279,7 +1310,7 @@ static int dwc3_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int dwc3_suspend_common(struct dwc3 *dwc) +static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) { unsigned long flags; @@ -1291,6 +1322,10 @@ static int dwc3_suspend_common(struct dwc3 *dwc) dwc3_core_exit(dwc); break; case DWC3_GCTL_PRTCAP_HOST: + /* do nothing during host runtime_suspend */ + if (!PMSG_IS_AUTO(msg)) + dwc3_core_exit(dwc); + break; default: /* do nothing */ break; @@ -1299,7 +1334,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc) return 0; } -static int dwc3_resume_common(struct dwc3 *dwc) +static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) { unsigned long flags; int ret; @@ -1315,6 +1350,13 @@ static int dwc3_resume_common(struct dwc3 *dwc) spin_unlock_irqrestore(&dwc->lock, flags); break; case DWC3_GCTL_PRTCAP_HOST: + /* nothing to do on host runtime_resume */ + if (!PMSG_IS_AUTO(msg)) { + ret = dwc3_core_init(dwc); + if (ret) + return ret; + } + break; default: /* do nothing */ break; @@ -1326,12 +1368,11 @@ static int dwc3_resume_common(struct dwc3 *dwc) static int dwc3_runtime_checks(struct dwc3 *dwc) { switch (dwc->current_dr_role) { - case USB_DR_MODE_PERIPHERAL: - case USB_DR_MODE_OTG: + case DWC3_GCTL_PRTCAP_DEVICE: if (dwc->connected) return -EBUSY; break; - case USB_DR_MODE_HOST: + case DWC3_GCTL_PRTCAP_HOST: default: /* do nothing */ break; @@ -1348,7 +1389,7 @@ static int dwc3_runtime_suspend(struct device *dev) if (dwc3_runtime_checks(dwc)) return -EBUSY; - ret = dwc3_suspend_common(dwc); + ret = dwc3_suspend_common(dwc, PMSG_AUTO_SUSPEND); if (ret) return ret; @@ -1364,7 +1405,7 @@ static int dwc3_runtime_resume(struct device *dev) device_init_wakeup(dev, false); - ret = dwc3_resume_common(dwc); + ret = dwc3_resume_common(dwc, PMSG_AUTO_RESUME); if (ret) return ret; @@ -1411,7 +1452,7 @@ static int dwc3_suspend(struct device *dev) struct dwc3 *dwc = dev_get_drvdata(dev); int ret; - ret = dwc3_suspend_common(dwc); + ret = dwc3_suspend_common(dwc, PMSG_SUSPEND); if (ret) return ret; @@ -1427,7 +1468,7 @@ static int dwc3_resume(struct device *dev) pinctrl_pm_select_default_state(dev); - ret = dwc3_resume_common(dwc); + ret = dwc3_resume_common(dwc, PMSG_RESUME); if (ret) return ret; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 4a4a4c98508c..860d2bc184d1 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -158,13 +158,15 @@ #define DWC3_GDBGFIFOSPACE_TYPE(n) (((n) << 5) & 0x1e0) #define DWC3_GDBGFIFOSPACE_SPACE_AVAILABLE(n) (((n) >> 16) & 0xffff) -#define DWC3_TXFIFOQ 1 -#define DWC3_RXFIFOQ 3 -#define DWC3_TXREQQ 5 -#define DWC3_RXREQQ 7 -#define DWC3_RXINFOQ 9 -#define DWC3_DESCFETCHQ 13 -#define DWC3_EVENTQ 15 +#define DWC3_TXFIFOQ 0 +#define DWC3_RXFIFOQ 1 +#define DWC3_TXREQQ 2 +#define DWC3_RXREQQ 3 +#define DWC3_RXINFOQ 4 +#define DWC3_PSTATQ 5 +#define DWC3_DESCFETCHQ 6 +#define DWC3_EVENTQ 7 +#define DWC3_AUXEVENTQ 8 /* Global RX Threshold Configuration Register */ #define DWC3_GRXTHRCFG_MAXRXBURSTSIZE(n) (((n) & 0x1f) << 19) @@ -795,8 +797,9 @@ struct dwc3_scratchpad_array { * @usb3_phy: pointer to USB3 PHY * @usb2_generic_phy: pointer to USB2 PHY * @usb3_generic_phy: pointer to USB3 PHY + * @phys_ready: flag to indicate that PHYs are ready * @ulpi: pointer to ulpi interface - * @isoch_delay: wValue from Set Isochronous Delay request; + * @ulpi_ready: flag to indicate that ULPI is initialized * @u2sel: parameter from Set SEL request. * @u2pel: parameter from Set SEL request. * @u1sel: parameter from Set SEL request. @@ -857,6 +860,7 @@ struct dwc3_scratchpad_array { * 1 - -3.5dB de-emphasis * 2 - No de-emphasis * 3 - Reserved + * @dis_metastability_quirk: set to disable metastability quirk. * @imod_interval: set the interrupt moderation interval in 250ns * increments or 0 to disable. */ @@ -893,7 +897,10 @@ struct dwc3 { struct phy *usb2_generic_phy; struct phy *usb3_generic_phy; + bool phys_ready; + struct ulpi *ulpi; + bool ulpi_ready; void __iomem *regs; size_t regs_size; @@ -955,7 +962,6 @@ struct dwc3 { enum dwc3_ep0_state ep0state; enum dwc3_link_state link_state; - u16 isoch_delay; u16 u2sel; u16 u2pel; u8 u1sel; @@ -1010,6 +1016,8 @@ struct dwc3 { unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2; + unsigned dis_metastability_quirk:1; + u16 imod_interval; }; diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h index 368f8e59219a..bfb90c52d8fc 100644 --- a/drivers/usb/dwc3/debug.h +++ b/drivers/usb/dwc3/debug.h @@ -247,6 +247,15 @@ static inline void dwc3_decode_set_clear_feature(__u8 t, __u8 b, __u16 v, case USB_DEVICE_TEST_MODE: s = "Test Mode"; break; + case USB_DEVICE_U1_ENABLE: + s = "U1 Enable"; + break; + case USB_DEVICE_U2_ENABLE: + s = "U2 Enable"; + break; + case USB_DEVICE_LTM_ENABLE: + s = "LTM Enable"; + break; default: s = "UNKNOWN"; } s; }), diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index fd3e7ad2eb0e..18be31d5743a 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -736,11 +736,7 @@ static int dwc3_ep0_set_isoch_delay(struct dwc3 *dwc, struct usb_ctrlrequest *ct if (wIndex || wLength) return -EINVAL; - /* - * REVISIT It's unclear from Databook what to do with this - * value. For now, just cache it. - */ - dwc->isoch_delay = wValue; + dwc->gadget.isoch_delay = wValue; return 0; } @@ -858,7 +854,12 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, trb++; trb->ctrl &= ~DWC3_TRB_CTRL_HWO; trace_dwc3_complete_trb(ep0, trb); - ep0->trb_enqueue = 0; + + if (r->direction) + dwc->eps[1]->trb_enqueue = 0; + else + dwc->eps[0]->trb_enqueue = 0; + dwc->ep0_bounced = false; } diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 639dd1b163a0..2bda4eb1e9ac 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2005,7 +2005,8 @@ static void dwc3_gadget_set_speed(struct usb_gadget *g, * STAR#9000525659: Clock Domain Crossing on DCTL in * USB 2.0 Mode */ - if (dwc->revision < DWC3_REVISION_220A) { + if (dwc->revision < DWC3_REVISION_220A && + !dwc->dis_metastability_quirk) { reg |= DWC3_DCFG_SUPERSPEED; } else { switch (speed) { @@ -2744,6 +2745,8 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) break; } + dwc->eps[1]->endpoint.maxpacket = dwc->gadget.ep0->maxpacket; + /* Enable USB2 LPM Capability */ if ((dwc->revision > DWC3_REVISION_194A) && @@ -3224,7 +3227,8 @@ int dwc3_gadget_init(struct dwc3 *dwc) * is less than super speed because we don't have means, yet, to tell * composite.c that we are USB 2.0 + LPM ECN. */ - if (dwc->revision < DWC3_REVISION_220A) + if (dwc->revision < DWC3_REVISION_220A && + !dwc->dis_metastability_quirk) dev_info(dwc->dev, "changing max_speed on rev %08x\n", dwc->revision); -- 2.53.0