From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 304FF144D27; Sun, 28 Jul 2024 16:07:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722182838; cv=none; b=l6Xyg5e16ss0V0Dqsf9jtgg/iW0eT4LL9nE6bZBqGYJb6vM+9xAS0tudQ3poNS5K17EtDxmD9e6DISybl5YazeXdCuWh22CwflZHgo9tzoOj4XUEHucODsmxzgU98VbMdJeFhsqKpWWl7HsfUHT5lIYnzrS9Zweo0XiAwDYh0S8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722182838; c=relaxed/simple; bh=NBqCHv+4nvwQnzjbu+xsjgerV9joXx3WtcrYp4kePOw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IuUksNfo1TkJSusGfYJmY9Kdc76c6MUb1ZZx8dea5M5IuFEb5D8x988li+Mk0OXHjt4MbP9xV81UGrl0AWqBUMs8NwT0gOsQb/C8ykLqXt8XWIZyyXwpBeOQna68uYNNt3+spj8HQ/GAuS7goxAYrds9Z4uIrHv9uFbUbDhzymk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qivTPyKn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qivTPyKn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C8D66C32782; Sun, 28 Jul 2024 16:07:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722182838; bh=NBqCHv+4nvwQnzjbu+xsjgerV9joXx3WtcrYp4kePOw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qivTPyKnVlDT7+PjmW5NZ7nvU5WDFD3Q442FuFThNyW24ajZ46ZpcTmW0Cnrhsf04 VaeB2xFqLtNl8u5uRIKR0VxcR2pYd1rMSxsBrUx1d2HpclhNyJUXHskP7kDiwKBHfe /rA1lRCon9bwOpGvqCdZV4bli+QTuEE1FLtJ1wKOD8oK6/+duoBtezS2MxD9Q5UvNM v9dtepcCpdGNMDROxakgKRFIQhGU1uCe+NwSsb5hOQ2a9NIQm0fp8ii6SVxJ3w8aNr XCS07JDJLQCOWtaezUlsOUHC1Xb/MW8s8WoE9pN5+in+2NhZpAhDPtxaf3fWGeqJsJ yhWsnjw3xhTpA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Roger Quadros , Ravi Gunasekaran , Peter Chen , Greg Kroah-Hartman , Sasha Levin , pawell@cadence.com, linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 6.6 04/17] usb: cdns3-ti: Add workaround for Errata i2409 Date: Sun, 28 Jul 2024 12:06:40 -0400 Message-ID: <20240728160709.2052627-4-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240728160709.2052627-1-sashal@kernel.org> References: <20240728160709.2052627-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.43 Content-Transfer-Encoding: 8bit From: Roger Quadros [ Upstream commit b50a2da03bd95784541b3f9058e452cc38f9ba05 ] 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 Acked-by: Peter Chen Link: https://lore.kernel.org/r/20240516044537.16801-3-r-gunasekaran@ti.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- 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 5945c4b1e11f6..cfabc12ee0e3c 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; -- 2.43.0