From patchwork Sat Apr 6 00:51:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Souza, Jose" X-Patchwork-Id: 10888035 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 712B9139A for ; Sat, 6 Apr 2019 00:51:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5B50928821 for ; Sat, 6 Apr 2019 00:51:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4F6F928AF2; Sat, 6 Apr 2019 00:51:20 +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 16C2028821 for ; Sat, 6 Apr 2019 00:51:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0FC9289ED6; Sat, 6 Apr 2019 00:51:17 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id D4BC089EB4 for ; Sat, 6 Apr 2019 00:51:15 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Apr 2019 17:51:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,314,1549958400"; d="scan'208";a="159186213" Received: from josouza-mobl.jf.intel.com ([10.24.8.227]) by fmsmga004.fm.intel.com with ESMTP; 05 Apr 2019 17:51:14 -0700 From: =?utf-8?q?Jos=C3=A9_Roberto_de_Souza?= To: intel-gfx@lists.freedesktop.org Date: Fri, 5 Apr 2019 17:51:11 -0700 Message-Id: <20190406005112.27205-3-jose.souza@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190406005112.27205-1-jose.souza@intel.com> References: <20190406005112.27205-1-jose.souza@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 3/4] drm/i915/psr: Initialize PSR mutex even when sink is not reliable 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: Dhinakaran Pandiyan Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Even when driver is reloaded and hits this scenario the PSR mutex should be initialized, otherwise reading PSR debugfs status will execute mutex_lock() over a mutex that was not initialized. Cc: Dhinakaran Pandiyan Cc: Rodrigo Vivi Reviewed-by: Rodrigo Vivi Signed-off-by: José Roberto de Souza --- drivers/gpu/drm/i915/intel_psr.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index c80bb3003a7d..a84da931c3be 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -1227,7 +1227,6 @@ void intel_psr_init(struct drm_i915_private *dev_priv) if (val) { DRM_DEBUG_KMS("PSR interruption error set\n"); dev_priv->psr.sink_not_reliable = true; - return; } /* Set link_standby x link_off defaults */