From patchwork Fri Jul 10 11:57:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Auld X-Patchwork-Id: 11656347 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 CDF8492A for ; Fri, 10 Jul 2020 11:59:51 +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 B5A2C207BB for ; Fri, 10 Jul 2020 11:59:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B5A2C207BB 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 4C49A6EBEF; Fri, 10 Jul 2020 11:59:51 +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 3FD536EBF3 for ; Fri, 10 Jul 2020 11:59:50 +0000 (UTC) IronPort-SDR: oqT542X7OnuqsYVYUam71EKIiJcLkgRxCWKy3JnoF/3H87+LWxfwwhRDSTfrintRbudz9nRhYt ZUFuj2E+zA1A== X-IronPort-AV: E=McAfee;i="6000,8403,9677"; a="149653695" X-IronPort-AV: E=Sophos;i="5.75,335,1589266800"; d="scan'208";a="149653695" 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 04:59:50 -0700 IronPort-SDR: oLn/hM/3ICoQkw/zC9uyMWLNy9hGeLFhqSUR6UrTM+yY486Yw1h+VUXZ52rdKbpDXGyVB+Uwrg KxKVC6YVpAHA== X-IronPort-AV: E=Sophos;i="5.75,335,1589266800"; d="scan'208";a="458257480" 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 04:59:47 -0700 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Date: Fri, 10 Jul 2020 12:57:16 +0100 Message-Id: <20200710115757.290984-20-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 19/60] drm/i915/dg1: Don't program PHY_MISC for PHY-C and PHY-D 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: Matt Roper The only bit we use in PHY_MISC is DE_IO_COMP_PWR_DOWN, and the bspec details for that bit tell us that it need only be set for PHY-A and PHY-B. It also turns out that there isn't even an instance of the PHY_MISC register for PHY-D on this platform. Let's extend the EHL/RKL logic that conditionally skips PHY_MISC usage to DG1 as well. Bspec: 50107 Cc: Aditya Swarup Cc: Clinton Taylor Signed-off-by: Matt Roper Signed-off-by: Lucas De Marchi --- drivers/gpu/drm/i915/display/intel_combo_phy.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c index eccaa79cb4a9..f6d7f807b884 100644 --- a/drivers/gpu/drm/i915/display/intel_combo_phy.c +++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c @@ -189,7 +189,8 @@ static bool has_phy_misc(struct drm_i915_private *i915, enum phy phy) * other combo PHY's. */ if (IS_ELKHARTLAKE(i915) || - IS_ROCKETLAKE(i915)) + IS_ROCKETLAKE(i915) || + IS_DG1(i915)) return phy < PHY_C; return true;