From patchwork Mon Sep 7 14:21:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heikki Krogerus X-Patchwork-Id: 297707 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C3583C43461 for ; Mon, 7 Sep 2020 16:32:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92990207DE for ; Mon, 7 Sep 2020 16:32:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730430AbgIGQb6 (ORCPT ); Mon, 7 Sep 2020 12:31:58 -0400 Received: from mga09.intel.com ([134.134.136.24]:34574 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729811AbgIGOWF (ORCPT ); Mon, 7 Sep 2020 10:22:05 -0400 IronPort-SDR: 7SnCGsY8ygDcgEJR9WmA++8oudIbezDrWnkVWs1b2mk1EqAbuCOYl25x27Q/ni/Gri/ZKJW3z7 4QHq77l1pSqg== X-IronPort-AV: E=McAfee;i="6000,8403,9736"; a="158987053" X-IronPort-AV: E=Sophos;i="5.76,402,1592895600"; d="scan'208";a="158987053" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2020 07:22:01 -0700 IronPort-SDR: KjwBIvDadpSfVWan+1F4N9iKaJL4bmpavJOC7S0SshGxa/9bgjwjk5FWaLfYUaPaiSMyAfrxDS U1hbBrTAxL7Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,402,1592895600"; d="scan'208";a="406850924" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 07 Sep 2020 07:21:57 -0700 From: Heikki Krogerus To: Greg Kroah-Hartman Cc: "Mani, Rajmohan" , Utkarsh Patel , linux-usb@vger.kernel.org Subject: [PATCH 2/2] usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes Date: Mon, 7 Sep 2020 17:21:52 +0300 Message-Id: <20200907142152.35678-3-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200907142152.35678-1-heikki.krogerus@linux.intel.com> References: <20200907142152.35678-1-heikki.krogerus@linux.intel.com> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Utkarsh Patel According to the PMC Type C Subsystem (TCSS) Mux programming guide rev 0.7, bits 4 and 5 are reserved in Alternate modes. SBU Orientation and HSL Orientation needs to be configured only during initial cable detection in USB connect flow based on device property of "sbu-orientation" and "hsl-orientation". Configuring these reserved bits in the Alternate modes may result in delay in display link training or some unexpected behaviour. So do not configure them while issuing Alternate Mode requests. Fixes: ff4a30d5e243 ("usb: typec: mux: intel_pmc_mux: Support for static SBU/HSL orientation") Signed-off-by: Utkarsh Patel Signed-off-by: Heikki Krogerus --- drivers/usb/typec/mux/intel_pmc_mux.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index 802d443b367c6..3bc08847fb7f0 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -61,8 +61,6 @@ enum { #define PMC_USB_ALTMODE_ORI_SHIFT 1 #define PMC_USB_ALTMODE_UFP_SHIFT 3 -#define PMC_USB_ALTMODE_ORI_AUX_SHIFT 4 -#define PMC_USB_ALTMODE_ORI_HSL_SHIFT 5 /* DP specific Mode Data bits */ #define PMC_USB_ALTMODE_DP_MODE_SHIFT 8 @@ -178,9 +176,6 @@ pmc_usb_mux_dp(struct pmc_usb_port *port, struct typec_mux_state *state) req.mode_data = (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT; req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT; - req.mode_data |= sbu_orientation(port) << PMC_USB_ALTMODE_ORI_AUX_SHIFT; - req.mode_data |= hsl_orientation(port) << PMC_USB_ALTMODE_ORI_HSL_SHIFT; - req.mode_data |= (state->mode - TYPEC_STATE_MODAL) << PMC_USB_ALTMODE_DP_MODE_SHIFT; @@ -208,9 +203,6 @@ pmc_usb_mux_tbt(struct pmc_usb_port *port, struct typec_mux_state *state) req.mode_data = (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT; req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT; - req.mode_data |= sbu_orientation(port) << PMC_USB_ALTMODE_ORI_AUX_SHIFT; - req.mode_data |= hsl_orientation(port) << PMC_USB_ALTMODE_ORI_HSL_SHIFT; - if (TBT_ADAPTER(data->device_mode) == TBT_ADAPTER_TBT3) req.mode_data |= PMC_USB_ALTMODE_TBT_TYPE;