From patchwork Thu May 31 11:56:22 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 10440953 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 119BC602BF for ; Thu, 31 May 2018 11:56:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F1B69223A0 for ; Thu, 31 May 2018 11:56:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E655F285C5; Thu, 31 May 2018 11:56:41 +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 A7227223A0 for ; Thu, 31 May 2018 11:56:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 015F589E9B; Thu, 31 May 2018 11:56:41 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id E3A7E89BBE for ; Thu, 31 May 2018 11:56:39 +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 fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2018 04:56:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,463,1520924400"; d="scan'208";a="60116575" Received: from jnikula-mobl2.fi.intel.com (HELO localhost) ([10.237.72.62]) by fmsmga001.fm.intel.com with ESMTP; 31 May 2018 04:56:38 -0700 From: Jani Nikula To: intel-gfx@lists.freedesktop.org Date: Thu, 31 May 2018 14:56:22 +0300 Message-Id: <20180531115624.30269-3-jani.nikula@intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180531115624.30269-1-jani.nikula@intel.com> References: <20180531115624.30269-1-jani.nikula@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH 2/4] drm/i915: clean up virtual PCH special case handling 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 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Use intel_pch_type() also for mapping the no PCH case (PCH id 0) to PCH_NONE to simplify code. Also make sure that intel_pch_type() knows all the PCH ids returned by intel_virt_detect_pch(). Loudly fail if this isn't the case; this shouldn't happen anyway. Cc: Colin Xu Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Tested-by: Colin Xu Reviewed-by: Colin Xu --- drivers/gpu/drm/i915/i915_drv.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index c42e389a27f3..1842a067a604 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -282,13 +282,12 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) } else if (intel_is_virt_pch(id, pch->subsystem_vendor, pch->subsystem_device)) { id = intel_virt_detect_pch(dev_priv); - if (id) { - pch_type = intel_pch_type(dev_priv, id); - if (WARN_ON(pch_type == PCH_NONE)) - pch_type = PCH_NOP; - } else { - pch_type = PCH_NONE; - } + pch_type = intel_pch_type(dev_priv, id); + + /* Sanity check virtual PCH id */ + if (WARN_ON(id && pch_type == PCH_NONE)) + id = 0; + dev_priv->pch_type = pch_type; dev_priv->pch_id = id; break;