From patchwork Fri Jun 8 12:33:30 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 10454259 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EED6160467 for ; Fri, 8 Jun 2018 12:33:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DDFE0294D5 for ; Fri, 8 Jun 2018 12:33:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D28D8294DB; Fri, 8 Jun 2018 12:33:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8D1C0294D5 for ; Fri, 8 Jun 2018 12:33:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2912C6E08C; Fri, 8 Jun 2018 12:33:54 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id B9F556E085 for ; Fri, 8 Jun 2018 12:33:52 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jun 2018 05:33:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,490,1520924400"; d="scan'208";a="62401405" Received: from jnikula-mobl2.fi.intel.com (HELO localhost) ([10.237.72.62]) by fmsmga001.fm.intel.com with ESMTP; 08 Jun 2018 05:33:51 -0700 From: Jani Nikula To: intel-gfx@lists.freedesktop.org Date: Fri, 8 Jun 2018 15:33:30 +0300 Message-Id: <20180608123330.31003-6-jani.nikula@intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180608123330.31003-1-jani.nikula@intel.com> References: <20180608123330.31003-1-jani.nikula@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH 5/5] drm/i915: fix PCH_NOP setting for non-PCH platforms X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, lucas.demarchi@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Setting PCH type to PCH_NOP before checking whether we actually have a PCH ends up returning true for HAS_PCH_SPLIT() on all non-PCH split platforms. Fix this by using PCH_NOP only for platforms that actually have a PCH. Cc: Ville Syrjala Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_drv.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 6b6c9c040617..d76f73e69468 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -248,14 +248,6 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) { struct pci_dev *pch = NULL; - /* In all current cases, num_pipes is equivalent to the PCH_NOP setting - * (which really amounts to a PCH but no South Display). - */ - if (INTEL_INFO(dev_priv)->num_pipes == 0) { - dev_priv->pch_type = PCH_NOP; - return; - } - /* * The reason to probe ISA bridge instead of Dev31:Fun0 is to * make graphics device passthrough work easy for VMM, that only @@ -295,6 +287,17 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) break; } } + + /* + * Use PCH_NOP (PCH but no South Display) for PCH platforms without + * display. + */ + if (pch && INTEL_INFO(dev_priv)->num_pipes == 0) { + DRM_DEBUG_KMS("Display disabled, reverting to NOP PCH\n"); + dev_priv->pch_type = PCH_NOP; + dev_priv->pch_id = 0; + } + if (!pch) DRM_DEBUG_KMS("No PCH found.\n");