From patchwork Thu Dec 18 15:32:20 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: vandana.kannan@intel.com X-Patchwork-Id: 5514431 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CE2BF9F434 for ; Thu, 18 Dec 2014 15:15:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 88075209DD for ; Thu, 18 Dec 2014 15:15:43 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 111EA20A25 for ; Thu, 18 Dec 2014 15:15:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8FF276EA14; Thu, 18 Dec 2014 07:15:41 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id A2B556EA14 for ; Thu, 18 Dec 2014 07:15:40 -0800 (PST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP; 18 Dec 2014 07:12:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,601,1413270000"; d="scan'208";a="656433808" Received: from vkannan-desktop.iind.intel.com ([10.223.25.137]) by orsmga002.jf.intel.com with ESMTP; 18 Dec 2014 07:14:50 -0800 From: Vandana Kannan To: intel-gfx@lists.freedesktop.org Date: Thu, 18 Dec 2014 21:02:20 +0530 Message-Id: <1418916741-31452-7-git-send-email-vandana.kannan@intel.com> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1418916741-31452-1-git-send-email-vandana.kannan@intel.com> References: <1418916741-31452-1-git-send-email-vandana.kannan@intel.com> Cc: paulo.r.zanoni@intel.com, rodrigo.vivi@intel.com Subject: [Intel-gfx] [PATCH 6/7] drm/i915: Support for RR switching on VLV X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Definition of VLV RR switch bit and corresponding toggling in set_drrs function. Signed-off-by: Vandana Kannan Signed-off-by: Uma Shankar Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_dp.c | 10 ++++++++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 9a9731d..d673605 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3836,6 +3836,7 @@ enum punit_power_well { #define PIPECONF_INTERLACE_MODE_MASK (7 << 21) #define PIPECONF_EDP_RR_MODE_SWITCH (1 << 20) #define PIPECONF_CXSR_DOWNCLOCK (1<<16) +#define PIPECONF_EDP_RR_MODE_SWITCH_VLV (1 << 14) #define PIPECONF_COLOR_RANGE_SELECT (1 << 13) #define PIPECONF_BPC_MASK (0x7 << 5) #define PIPECONF_8BPC (0<<5) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 38d61f2..ef8fa94 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4819,10 +4819,16 @@ static void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate) reg = PIPECONF(intel_crtc->config.cpu_transcoder); val = I915_READ(reg); if (index > DRRS_HIGH_RR) { - val |= PIPECONF_EDP_RR_MODE_SWITCH; + if (IS_VALLEYVIEW(dev)) + val |= PIPECONF_EDP_RR_MODE_SWITCH_VLV; + else + val |= PIPECONF_EDP_RR_MODE_SWITCH; intel_dp_set_m_n(intel_crtc); } else { - val &= ~PIPECONF_EDP_RR_MODE_SWITCH; + if (IS_VALLEYVIEW(dev)) + val &= ~PIPECONF_EDP_RR_MODE_SWITCH_VLV; + else + val &= ~PIPECONF_EDP_RR_MODE_SWITCH; } I915_WRITE(reg, val); }