From patchwork Tue Mar 31 11:11:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Mika Kahola X-Patchwork-Id: 6128831 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 [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1ADEFBF4A6 for ; Tue, 31 Mar 2015 11:12:31 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A971820173 for ; Tue, 31 Mar 2015 11:12:25 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id D83A220160 for ; Tue, 31 Mar 2015 11:12:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 559106E6FA; Tue, 31 Mar 2015 04:12:24 -0700 (PDT) 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 008166E6FB for ; Tue, 31 Mar 2015 04:12:23 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP; 31 Mar 2015 04:12:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,500,1422950400"; d="scan'208";a="673093326" Received: from sorvi.fi.intel.com ([10.237.72.157]) by orsmga001.jf.intel.com with ESMTP; 31 Mar 2015 04:12:23 -0700 From: Mika Kahola To: intel-gfx@lists.freedesktop.org Date: Tue, 31 Mar 2015 14:11:59 +0300 Message-Id: <1427800319-4928-1-git-send-email-mika.kahola@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <20150331110535.GB3154@sorvi> References: <20150331110535.GB3154@sorvi> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 07/19] drm/i915: Simplify ilk_get_aux_clock_divider 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: , 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 Now that we are "extracting" the cdclk frequency on ILK-IVB we can also simplify ilk_get_aux_clock_divider() to calculate the divider based on cdclk instead of hardcoding the values. Signed-off-by: Ville Syrjälä Signed-off-by: Mika Kahola Reviewed-by: Damien Lespiau --- drivers/gpu/drm/i915/intel_dp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 9b741b5..e38dbd5 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -696,15 +696,13 @@ static uint32_t ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = intel_dig_port->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; if (index) return 0; if (intel_dig_port->port == PORT_A) { - if (IS_GEN6(dev) || IS_GEN7(dev)) - return 200; /* SNB & IVB eDP input clock at 400Mhz */ - else - return 225; /* eDP input clock at 450Mhz */ + return DIV_ROUND_UP(dev_priv->display.get_display_clock_speed(dev), 2000); } else { return DIV_ROUND_UP(intel_pch_rawclk(dev), 2); }