From patchwork Thu Feb 27 10:42:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marco Felsch X-Patchwork-Id: 11408273 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9131213A4 for ; Thu, 27 Feb 2020 10:42:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6E0EC24690 for ; Thu, 27 Feb 2020 10:42:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ikd73+4W" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E0EC24690 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ozQUuDx32zj6RP7GLxvMPW9g7oJXtIVR3ojTGfwBTWg=; b=Ikd73+4W+Ad6q/ NPSx02UcgJag28Weq/NCWeZPd9lKPLxQmwm7BiY9fxQ2WcdfgIO45lZO1mqHgwM7d1bnb7dfGuFFe OmCnP84PkhAOAgp8BX62BMBI8FxkvuDdSJdUvCMnP/gBreTNZjiT6I7Nxgaa2LS5F6SdDeNpFGEmy e2xUqBZkl36z1Wz5IvIpccT6WiI7zSTxnWvVqYdtMzSK9/Gl7mNelhD4JExPOSCsMj9tdKwfEfa6+ GcSBI/ZsEBADRm8eAKSPpVh/iIYZiQNqgHRapowPKKKcqiArlg4mDXJrQN+cQ3R4Tu7ozpcsgQfRp FDHZcWs0taTewHM58gaQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7Gcb-0001iC-1s; Thu, 27 Feb 2020 10:42:25 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7GcY-0001g3-7I for linux-arm-kernel@lists.infradead.org; Thu, 27 Feb 2020 10:42:23 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28] helo=dude02.lab.pengutronix.de) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1j7GcR-0003f6-Ay; Thu, 27 Feb 2020 11:42:15 +0100 Received: from mfe by dude02.lab.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1j7GcP-0004nj-5g; Thu, 27 Feb 2020 11:42:13 +0100 From: Marco Felsch To: Peter.Chen@nxp.com, gregkh@linuxfoundation.org, shawnguo@kernel.org, linux-imx@nxp.com, stern@rowland.harvard.edu, jun.li@freescale.com Subject: [PATCH 1/3] USB: ehci-hub: let port_power() override the ehci_port_power() Date: Thu, 27 Feb 2020 11:42:10 +0100 Message-Id: <20200227104212.12562-2-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200227104212.12562-1-m.felsch@pengutronix.de> References: <20200227104212.12562-1-m.felsch@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: mfe@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200227_024222_265572_5DD30A3F X-CRM114-Status: GOOD ( 13.67 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Since commit 11a7e5940514 ("usb: ehci: add ehci_port_power interface") drivers can add a port_power() override callback. Currently the ChipIdea host driver is the only one using the callback to support gpio controlled vbus enable/disable. Then commit 6adb9b7b5fb6 ("usb: chipidea: add a flag for turn on vbus early for host") and commit 659459174188 ("usb: chipidea: host: turn on vbus before add hcd if early vbus on is required") adding a workaround to address the current core behaviour. Since that the gpio based port-power is broken which was the only use-case for this callback. We should let the override callback override the core behaviour to avoid adding local workarounds needed to address the core behaviour. Signed-off-by: Marco Felsch --- drivers/usb/host/ehci-hub.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index ce0eaf7d7c12..12b8c9055ab3 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -1338,13 +1338,13 @@ static int ehci_port_power(struct ehci_hcd *ehci, int portnum, bool enable) u32 __iomem *status_reg = &ehci->regs->port_status[portnum]; u32 temp = ehci_readl(ehci, status_reg) & ~PORT_RWC_BITS; + if (hcd->driver->port_power) + return hcd->driver->port_power(hcd, portnum, enable); + if (enable) ehci_writel(ehci, temp | PORT_POWER, status_reg); else ehci_writel(ehci, temp & ~PORT_POWER, status_reg); - if (hcd->driver->port_power) - hcd->driver->port_power(hcd, portnum, enable); - return 0; } From patchwork Thu Feb 27 10:42:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marco Felsch X-Patchwork-Id: 11408277 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 327AF13A4 for ; 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Thu, 27 Feb 2020 11:42:15 +0100 Received: from mfe by dude02.lab.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1j7GcP-0004nu-6A; Thu, 27 Feb 2020 11:42:13 +0100 From: Marco Felsch To: Peter.Chen@nxp.com, gregkh@linuxfoundation.org, shawnguo@kernel.org, linux-imx@nxp.com, stern@rowland.harvard.edu, jun.li@freescale.com Subject: [PATCH 2/3] Partially Revert "usb: chipidea: host: turn on vbus before add hcd if early vbus on is required" Date: Thu, 27 Feb 2020 11:42:11 +0100 Message-Id: <20200227104212.12562-3-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200227104212.12562-1-m.felsch@pengutronix.de> References: <20200227104212.12562-1-m.felsch@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: mfe@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200227_024222_268458_5F64003B X-CRM114-Status: GOOD ( 14.91 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Commit 659459174188 ("usb: chipidea: host: turn on vbus before add hcd if early vbus on is required") enabled the vbus regulator but didn't assign the reg_vbus. So the vbus regulator can't be disabled anymore. Since the port_power() callback is executed exclusive (without enabling the port power (PP) bit) we can do the special handling within the callback without the need of a special flag. Signed-off-by: Marco Felsch --- drivers/usb/chipidea/host.c | 31 ++++++++++--------------------- 1 file changed, 10 insertions(+), 21 deletions(-) diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 48e4a5ca1835..f1832847a023 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -37,6 +37,8 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable) struct ci_hdrc *ci = dev_get_drvdata(dev); int ret = 0; int port = HCS_N_PORTS(ehci->hcs_params); + u32 __iomem *status_reg = &ehci->regs->port_status[portnum]; + u32 temp = ehci_readl(ehci, status_reg) & ~PORT_RWC_BITS; if (priv->reg_vbus && enable != priv->enabled) { if (port > 1) { @@ -57,6 +59,11 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable) priv->enabled = enable; } + if (enable) + ehci_writel(ehci, temp | PORT_POWER, status_reg); + else + ehci_writel(ehci, temp & ~PORT_POWER, status_reg); + if (enable && (ci->platdata->phy_mode == USBPHY_INTERFACE_MODE_HSIC)) { /* * Marvell 28nm HSIC PHY requires forcing the port to HS mode. @@ -142,19 +149,8 @@ static int host_start(struct ci_hdrc *ci) priv = (struct ehci_ci_priv *)ehci->priv; priv->reg_vbus = NULL; - if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci)) { - if (ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON) { - ret = regulator_enable(ci->platdata->reg_vbus); - if (ret) { - dev_err(ci->dev, - "Failed to enable vbus regulator, ret=%d\n", - ret); - goto put_hcd; - } - } else { - priv->reg_vbus = ci->platdata->reg_vbus; - } - } + if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci)) + priv->reg_vbus = ci->platdata->reg_vbus; if (ci->platdata->pins_host) pinctrl_select_state(ci->platdata->pctl, @@ -162,7 +158,7 @@ static int host_start(struct ci_hdrc *ci) ret = usb_add_hcd(hcd, 0, 0); if (ret) { - goto disable_reg; + goto put_hcd; } else { struct usb_otg *otg = &ci->otg; @@ -181,10 +177,6 @@ static int host_start(struct ci_hdrc *ci) return ret; -disable_reg: - if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) && - (ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON)) - regulator_disable(ci->platdata->reg_vbus); put_hcd: usb_put_hcd(hcd); @@ -203,9 +195,6 @@ static void host_stop(struct ci_hdrc *ci) ci->role = CI_ROLE_END; synchronize_irq(ci->irq); usb_put_hcd(hcd); - if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) && - (ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON)) - regulator_disable(ci->platdata->reg_vbus); } ci->hcd = NULL; ci->otg.host = NULL; From patchwork Thu Feb 27 10:42:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marco Felsch X-Patchwork-Id: 11408281 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DC86613A4 for ; Thu, 27 Feb 2020 10:43:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9ED9924695 for ; Thu, 27 Feb 2020 10:43:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Xu9Ik7rt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9ED9924695 Authentication-Results: mail.kernel.org; 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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7GdM-0002MW-E2; Thu, 27 Feb 2020 10:43:12 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7GcZ-0001gG-73 for linux-arm-kernel@lists.infradead.org; Thu, 27 Feb 2020 10:42:25 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28] helo=dude02.lab.pengutronix.de) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1j7GcR-0003f8-Ay; Thu, 27 Feb 2020 11:42:15 +0100 Received: from mfe by dude02.lab.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1j7GcP-0004o4-6a; Thu, 27 Feb 2020 11:42:13 +0100 From: Marco Felsch To: Peter.Chen@nxp.com, gregkh@linuxfoundation.org, shawnguo@kernel.org, linux-imx@nxp.com, stern@rowland.harvard.edu, jun.li@freescale.com Subject: [PATCH 3/3] Revert "usb: chipidea: add a flag for turn on vbus early for host" Date: Thu, 27 Feb 2020 11:42:12 +0100 Message-Id: <20200227104212.12562-4-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200227104212.12562-1-m.felsch@pengutronix.de> References: <20200227104212.12562-1-m.felsch@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: mfe@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200227_024223_252892_BFF6D4D8 X-CRM114-Status: GOOD ( 11.15 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The flag is no longer needed and can be removed since the quirk is now handled within the port_power() callback. Signed-off-by: Marco Felsch --- drivers/usb/chipidea/ci_hdrc_imx.c | 10 ++-------- include/linux/usb/chipidea.h | 17 ++++++++--------- 2 files changed, 10 insertions(+), 17 deletions(-) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index d8e7eb2f97b9..5c66921bbb9b 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -23,8 +23,7 @@ struct ci_hdrc_imx_platform_flag { }; static const struct ci_hdrc_imx_platform_flag imx23_usb_data = { - .flags = CI_HDRC_TURN_VBUS_EARLY_ON | - CI_HDRC_DISABLE_STREAMING, + .flags = CI_HDRC_DISABLE_STREAMING, }; static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { @@ -33,31 +32,26 @@ static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { .flags = CI_HDRC_IMX28_WRITE_FIX | - CI_HDRC_TURN_VBUS_EARLY_ON | CI_HDRC_DISABLE_STREAMING, }; static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = { .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | - CI_HDRC_TURN_VBUS_EARLY_ON | CI_HDRC_DISABLE_STREAMING, }; static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = { .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | - CI_HDRC_TURN_VBUS_EARLY_ON | CI_HDRC_DISABLE_HOST_STREAMING, }; static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = { .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | - CI_HDRC_TURN_VBUS_EARLY_ON | CI_HDRC_DISABLE_HOST_STREAMING, }; static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = { - .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | - CI_HDRC_TURN_VBUS_EARLY_ON, + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, }; static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = { diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index edd89b7c8f18..fa373aafa80e 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -53,15 +53,14 @@ struct ci_hdrc_platform_data { #define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) #define CI_HDRC_IMX28_WRITE_FIX BIT(5) #define CI_HDRC_FORCE_FULLSPEED BIT(6) -#define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7) -#define CI_HDRC_SET_NON_ZERO_TTHA BIT(8) -#define CI_HDRC_OVERRIDE_AHB_BURST BIT(9) -#define CI_HDRC_OVERRIDE_TX_BURST BIT(10) -#define CI_HDRC_OVERRIDE_RX_BURST BIT(11) -#define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */ -#define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13) -#define CI_HDRC_IMX_IS_HSIC BIT(14) -#define CI_HDRC_PMQOS BIT(15) +#define CI_HDRC_SET_NON_ZERO_TTHA BIT(7) +#define CI_HDRC_OVERRIDE_AHB_BURST BIT(8) +#define CI_HDRC_OVERRIDE_TX_BURST BIT(9) +#define CI_HDRC_OVERRIDE_RX_BURST BIT(10) +#define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(11) /* Glue layer manages phy */ +#define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(12) +#define CI_HDRC_IMX_IS_HSIC BIT(13) +#define CI_HDRC_PMQOS BIT(14) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1