From patchwork Fri Jul 10 11:57:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Auld X-Patchwork-Id: 11656357 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 2FBAC6C1 for ; Fri, 10 Jul 2020 12:00:13 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 16E8A2078D for ; Fri, 10 Jul 2020 12:00:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16E8A2078D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 919986EBF8; Fri, 10 Jul 2020 12:00:05 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8BA046EC0E for ; Fri, 10 Jul 2020 12:00:03 +0000 (UTC) IronPort-SDR: GP0gFlQ9Mm/R7z28Jvy+sAe94d9jIoiR/OfNgZkM7gjkvhIuxUwO53Vwsj8TpPvG/RJmYuxQwE QQSEuruXQwhw== X-IronPort-AV: E=McAfee;i="6000,8403,9677"; a="149653724" X-IronPort-AV: E=Sophos;i="5.75,335,1589266800"; d="scan'208";a="149653724" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2020 05:00:03 -0700 IronPort-SDR: Bo3eTMaroxeljR3ei2Bf20K92XtedOcCMKvCFI4GTHTk7XMkYy0nRxx1ia84FKejR4u8ZXypjl qnVE9yaZiirw== X-IronPort-AV: E=Sophos;i="5.75,335,1589266800"; d="scan'208";a="458257585" Received: from nmartino-mobl1.ger.corp.intel.com (HELO mwahaha-bdw.ger.corp.intel.com) ([10.255.207.224]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2020 05:00:01 -0700 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Date: Fri, 10 Jul 2020 12:57:21 +0100 Message-Id: <20200710115757.290984-25-matthew.auld@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200710115757.290984-1-matthew.auld@intel.com> References: <20200710115757.290984-1-matthew.auld@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC 24/60] drm/i915/dg1: enable PORT C/D aka D/E X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lucas De Marchi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Lucas De Marchi For DG1 we have a little of mix up wrt to DDI/port names and indexes. Bspec refers to the ports as DDIA, DDIB, DDI USBC1 and DDI USBC2 (besides the DDIA, DDIB, DDIC, DDID), but the previous naming is the most unambiguous one. This means that for any register on Display Engine we should use the index of A, B, D and E. However in some places this is not true: - VBT: uses C and D and have to be mapped to D/E - IO/Combo: uses C and D, but we already differentiate those when we created the phy vs port distinction. Ths additional mapping for VBT and phy are already covered in previous patches, so now we can initialize the DDI as D/E. Cc: Clinton Taylor Signed-off-by: Lucas De Marchi --- drivers/gpu/drm/i915/display/intel_display.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 8dc83b480466..223042bcbfd7 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -7230,10 +7230,7 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy) { if (phy == PHY_NONE) return false; - else if (IS_DG1(dev_priv)) - /* FIXME: Enable only two ports for now */ - return phy <= PHY_B; - else if (IS_ROCKETLAKE(dev_priv)) + else if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) return phy <= PHY_D; else if (IS_ELKHARTLAKE(dev_priv)) return phy <= PHY_C; @@ -7257,7 +7254,7 @@ bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy) enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port) { - if (IS_ROCKETLAKE(i915) && port >= PORT_D) + if ((IS_DG1(i915) || IS_ROCKETLAKE(i915)) && port >= PORT_D) return (enum phy)port - 1; else if (IS_ELKHARTLAKE(i915) && port == PORT_D) return PHY_A; @@ -16869,9 +16866,18 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv) return; if (IS_DG1(dev_priv)) { - /* FIXME: Enable only two ports for now */ intel_ddi_init(dev_priv, PORT_A); intel_ddi_init(dev_priv, PORT_B); + + /* + * Bspec lists the ports as A, B, C (USBC1) and D (USBC2). + * However from the Display Engine perspective all registers are + * actually wired to handle C and D as offsets of D/E. Instead + * of fighting all our macros for handling them specially for + * DG1, just call them D/E + */ + intel_ddi_init(dev_priv, PORT_D); + intel_ddi_init(dev_priv, PORT_E); } else if (IS_ROCKETLAKE(dev_priv)) { intel_ddi_init(dev_priv, PORT_A); intel_ddi_init(dev_priv, PORT_B);