From patchwork Fri Sep 4 13:55:15 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 7123531 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 [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 628E19F36E for ; Fri, 4 Sep 2015 13:52:18 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7FD6A208A9 for ; Fri, 4 Sep 2015 13:52:17 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id A25E92089D for ; Fri, 4 Sep 2015 13:52:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 28C087A196; Fri, 4 Sep 2015 06:52:16 -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 EB78D7A196 for ; Fri, 4 Sep 2015 06:52:14 -0700 (PDT) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP; 04 Sep 2015 06:52:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,469,1437462000"; d="scan'208";a="798250668" Received: from jnikula-mobl.fi.intel.com (HELO localhost) ([10.237.72.67]) by fmsmga002.fm.intel.com with ESMTP; 04 Sep 2015 06:52:14 -0700 From: Jani Nikula To: intel-gfx@lists.freedesktop.org Date: Fri, 4 Sep 2015 16:55:15 +0300 Message-Id: <1441374915-14076-3-git-send-email-jani.nikula@intel.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1441374915-14076-1-git-send-email-jani.nikula@intel.com> References: <1441374915-14076-1-git-send-email-jani.nikula@intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Cc: jani.nikula@intel.com Subject: [Intel-gfx] [PATCH v2 3/3] drm/i915: don't hard code vlv backlight frequency if unset 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, 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 Fall back to VBT based backlight modulation frequency if it's not set. Do not hard code. This could be a problem if there is no VBT. Cc: Clint Taylor Signed-off-by: Jani Nikula Reviewed-by: Clint Taylor Tested-by: Clint Taylor --- drivers/gpu/drm/i915/intel_panel.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index d3a312c409eb..2034438a0664 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1532,21 +1532,8 @@ static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_panel *panel = &connector->panel; - enum pipe p; u32 ctl, ctl2, val; - for_each_pipe(dev_priv, p) { - u32 cur_val = I915_READ(VLV_BLC_PWM_CTL(p)); - - /* Skip if the modulation freq is already set */ - if (cur_val & ~BACKLIGHT_DUTY_CYCLE_MASK) - continue; - - cur_val &= BACKLIGHT_DUTY_CYCLE_MASK; - I915_WRITE(VLV_BLC_PWM_CTL(p), (0xf42 << 16) | - cur_val); - } - if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B)) return -ENODEV;