From patchwork Tue May 14 09:24:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ravi Gunasekaran X-Patchwork-Id: 796867 Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) (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 13829763E6; Tue, 14 May 2024 09:24:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.141 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715678677; cv=none; b=TwRJik2Un+KwSeYFPkJ6peW3Axz+WDkvlcM0R610KSXLHaJ8fHMZ7aEWreOcW0ss87zoZVlfArVd8wXbZk8Hb9oKFUaB/rtQSovcfBJXOtwQD9kiTdS1V7qd/sh/6IuOAJu/aXR2pTX8FhxeeAV8mMymS5R1t98FR0kDWK3/k/s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715678677; c=relaxed/simple; bh=uMzp/zTf/osP+gvkR0MCVf4ImXGLvfVmMy07wrsnYyc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lr5o4cOaqAq8CYSXOL7eu4Chw2V9/+puCcEO/cNN2fzR/AU1YhL+teNuqtZmtwZlcNv1mGLEErKpEzLubI6YKeCth34cdG4+3olkuW7G0UocFe5RJmZ6VKwrstyRBOB3Lb66zH/8sTIZK8EQgmdzFD8tMNvEqHaXy7XMbMDmK78= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=TABiJawB; arc=none smtp.client-ip=198.47.19.141 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="TABiJawB" Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 44E9OTh3049021; Tue, 14 May 2024 04:24:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1715678669; bh=fBkjCYCCabd2QECou4K0JssT6mcmJbLsPyjH8U2CaNA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=TABiJawBNSUhp0XcHtLTbHTO+XbmCIsLb9yxIHK5A50q9iIJvWgLQw2O7tGFrccYJ C3Rg/OSImH2FdDdO7lSgDjLyRFq3s52stM4dbIC3DkuJqkfOEjJXuD2j6LefblGaeP 6YrmWrfGJet8Idz/GbHHqVSyC+oOE9fG2Mb+8pxI= Received: from DFLE107.ent.ti.com (dfle107.ent.ti.com [10.64.6.28]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 44E9OTcE088675 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 14 May 2024 04:24:29 -0500 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE107.ent.ti.com (10.64.6.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 14 May 2024 04:24:28 -0500 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 14 May 2024 04:24:28 -0500 Received: from uda0500640.dal.design.ti.com (uda0500640.dhcp.ti.com [172.24.227.88]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 44E9OLpA064099; Tue, 14 May 2024 04:24:26 -0500 From: Ravi Gunasekaran To: , , , CC: , , Subject: [PATCH 2/2] usb: cdns3-ti: Add workaround for Errata i2409 Date: Tue, 14 May 2024 14:54:21 +0530 Message-ID: <20240514092421.20897-3-r-gunasekaran@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240514092421.20897-1-r-gunasekaran@ti.com> References: <20240514092421.20897-1-r-gunasekaran@ti.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 From: Roger Quadros TI USB2 PHY is known to have a lockup issue on very short suspend intervals. Enable the Suspend Residency quirk flag to workaround this as described in Errata i2409 [1]. [1] - https://www.ti.com/lit/er/sprz457h/sprz457h.pdf Signed-off-by: Roger Quadros Signed-off-by: Ravi Gunasekaran --- drivers/usb/cdns3/cdns3-ti.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/usb/cdns3/cdns3-ti.c b/drivers/usb/cdns3/cdns3-ti.c index 5945c4b1e11f..cfabc12ee0e3 100644 --- a/drivers/usb/cdns3/cdns3-ti.c +++ b/drivers/usb/cdns3/cdns3-ti.c @@ -16,6 +16,7 @@ #include #include #include +#include "core.h" /* USB Wrapper register offsets */ #define USBSS_PID 0x0 @@ -85,6 +86,18 @@ static inline void cdns_ti_writel(struct cdns_ti *data, u32 offset, u32 value) writel(value, data->usbss + offset); } +static struct cdns3_platform_data cdns_ti_pdata = { + .quirks = CDNS3_DRD_SUSPEND_RESIDENCY_ENABLE, /* Errata i2409 */ +}; + +static const struct of_dev_auxdata cdns_ti_auxdata[] = { + { + .compatible = "cdns,usb3", + .platform_data = &cdns_ti_pdata, + }, + {}, +}; + static int cdns_ti_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -176,7 +189,7 @@ static int cdns_ti_probe(struct platform_device *pdev) reg |= USBSS_W1_PWRUP_RST; cdns_ti_writel(data, USBSS_W1, reg); - error = of_platform_populate(node, NULL, NULL, dev); + error = of_platform_populate(node, NULL, cdns_ti_auxdata, dev); if (error) { dev_err(dev, "failed to create children: %d\n", error); goto err;