From patchwork Mon Dec 14 17:28:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 343917 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC4FDC2BB48 for ; Mon, 14 Dec 2020 19:05:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8370721534 for ; Mon, 14 Dec 2020 19:05:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2408812AbgLNTBG (ORCPT ); Mon, 14 Dec 2020 14:01:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:46104 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2502219AbgLNRh3 (ORCPT ); Mon, 14 Dec 2020 12:37:29 -0500 From: Greg Kroah-Hartman Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Al Cooper , Florian Fainelli , Vinod Koul , Sasha Levin Subject: [PATCH 5.9 038/105] phy: usb: Fix incorrect clearing of tca_drv_sel bit in SETUP reg for 7211 Date: Mon, 14 Dec 2020 18:28:12 +0100 Message-Id: <20201214172557.114450633@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201214172555.280929671@linuxfoundation.org> References: <20201214172555.280929671@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Al Cooper [ Upstream commit 209c805835b29495cf66cc705b206da8f4a68e6e ] The 7211a0 has a tca_drv_sel bit in the USB SETUP register that should never be enabled. This feature is only used if there is a USB Type-C PHY, and the 7211 does not have one. If the bit is enabled, the VBUS signal will never be asserted. In the 7211a0, the bit was incorrectly defaulted to on so the driver had to clear the bit. In the 7211c0 the state was inverted so the driver should no longer clear the bit. This hasn't been a problem because all current 7211 boards don't use the VBUS signal, but there are some future customer boards that may use it. Signed-off-by: Al Cooper Acked-by: Florian Fainelli Link: https://lore.kernel.org/r/20201002190115.48017-1-alcooperx@gmail.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c index 456dc4a100c20..e63457e145c71 100644 --- a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c +++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c @@ -270,11 +270,6 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) reg |= params->mode << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT; brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1); - /* Fix the incorrect default */ - reg = brcm_usb_readl(ctrl + USB_CTRL_SETUP); - reg &= ~USB_CTRL_SETUP_tca_drv_sel_MASK; - brcm_usb_writel(reg, ctrl + USB_CTRL_SETUP); - usb_init_common(params); /*