From patchwork Tue Mar 20 22:41:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10298127 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 9D5E960386 for ; Tue, 20 Mar 2018 22:42:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A9A128179 for ; Tue, 20 Mar 2018 22:42:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7F6B228329; Tue, 20 Mar 2018 22:42:36 +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=-4.2 required=2.0 tests=BAYES_00, 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 3C18F28179 for ; Tue, 20 Mar 2018 22:42:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D52246E380; Tue, 20 Mar 2018 22:42:33 +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 B7EFB6E353 for ; Tue, 20 Mar 2018 22:42:26 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Mar 2018 15:42:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,337,1517904000"; d="scan'208";a="26639938" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.46]) by orsmga007.jf.intel.com with ESMTP; 20 Mar 2018 15:42:25 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Tue, 20 Mar 2018 15:41:48 -0700 Message-Id: <20180320224151.6009-3-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180320224151.6009-1-dhinakaran.pandiyan@intel.com> References: <20180320224151.6009-1-dhinakaran.pandiyan@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/5] drm/i915: Drop reg_write from the PSR mask 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 , Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä v2: from DK * Rebased on drm-tip * Explananation in commit message. REG_WRITE is necessary for HW to exit PSR when plane/pipe registers are written to. Cc: Rodrigo Vivi Signed-off-by: Ville Syrjälä Signed-off-by: Dhinakaran Pandiyan --- drivers/gpu/drm/i915/intel_psr.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 27dfd507a4f7..317cb4a12693 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -613,8 +613,7 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp, I915_WRITE(EDP_PSR_DEBUG, EDP_PSR_DEBUG_MASK_MEMUP | EDP_PSR_DEBUG_MASK_HPD | - EDP_PSR_DEBUG_MASK_LPSP | - EDP_PSR_DEBUG_MASK_REG_WRITE); + EDP_PSR_DEBUG_MASK_LPSP); } }