From patchwork Fri Mar 28 04:45:02 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: 3900701 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A4BEFBF540 for ; Fri, 28 Mar 2014 04:33:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E0F9420295 for ; Fri, 28 Mar 2014 04:33:37 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 25669202E6 for ; Fri, 28 Mar 2014 04:33:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7DBCF6EB93; Thu, 27 Mar 2014 21:33:36 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id EC0016EB93 for ; Thu, 27 Mar 2014 21:33:34 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 27 Mar 2014 21:28:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,748,1389772800"; d="scan'208";a="509437465" Received: from vkannan-desktop.iind.intel.com ([10.223.25.35]) by orsmga002.jf.intel.com with ESMTP; 27 Mar 2014 21:33:25 -0700 From: Vandana Kannan To: intel-gfx@lists.freedesktop.org Date: Fri, 28 Mar 2014 10:15:02 +0530 Message-Id: <1395981902-21606-7-git-send-email-vandana.kannan@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1395981902-21606-1-git-send-email-vandana.kannan@intel.com> References: <1395981902-21606-1-git-send-email-vandana.kannan@intel.com> Subject: [Intel-gfx] [PATCH 6/6] drm/i915: Support for RR switching on VLV X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 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=-4.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 04fc64a..435ed64 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3257,6 +3257,7 @@ 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 6cdbb38..79d880b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3721,10 +3721,16 @@ 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_m2_n2(intel_crtc, &config->dp_m2_n2); } 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); }