From patchwork Tue Oct 21 11:00:29 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 5123901 Return-Path: X-Original-To: patchwork-ltsi-dev@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 D85739F349 for ; Tue, 21 Oct 2014 12:17:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1515120109 for ; Tue, 21 Oct 2014 12:17:27 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4679C200E3 for ; Tue, 21 Oct 2014 12:17:26 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 4DCEB161E; Tue, 21 Oct 2014 11:17:07 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id D95011621 for ; Tue, 21 Oct 2014 11:17:03 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 84B841F8A8 for ; Tue, 21 Oct 2014 11:17:03 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 21 Oct 2014 04:17:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,761,1406617200"; d="scan'208";a="617802363" Received: from ubuntu-desktop.png.intel.com ([10.221.122.25]) by fmsmga002.fm.intel.com with ESMTP; 21 Oct 2014 04:16:39 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Tue, 21 Oct 2014 19:00:29 +0800 Message-Id: <1413889294-31328-1030-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-5.6 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 Subject: [LTSI-dev] [PATCH 1029/1094] drm/i915/vlv: move CRI refclk enable into __vlv_set_power_well X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jesse Barnes This needs to be done before we power back on the CMN_BC well so the PHY can calibrate properly. Signed-off-by: Jesse Barnes Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter (cherry picked from commit b00f025cf8242a4c91402abeaac6c2b589fcb263) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/intel_display.c | 8 -------- drivers/gpu/drm/i915/intel_pm.c | 11 +++++++++++ 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 74a083d..bb579d6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1484,14 +1484,6 @@ static void intel_reset_dpio(struct drm_device *dev) if (!IS_VALLEYVIEW(dev)) return; - /* - * Enable the CRI clock source so we can get at the display and the - * reference clock for VGA hotplug / manual detection. - */ - I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) | - DPLL_REFA_CLK_ENABLE_VLV | - DPLL_INTEGRATED_CRI_CLK_VLV); - if (IS_CHERRYVIEW(dev)) { enum dpio_phy phy; u32 val; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f993843..a324202 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5755,6 +5755,17 @@ void __vlv_set_power_well(struct drm_i915_private *dev_priv, u32 state; u32 ctrl; + if (power_well_id == PUNIT_POWER_WELL_DPIO_CMN_BC && enable) { + /* + * Enable the CRI clock source so we can get at the display + * and the reference clock for VGA hotplug / manual detection. + */ + I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) | + DPLL_REFA_CLK_ENABLE_VLV | + DPLL_INTEGRATED_CRI_CLK_VLV); + udelay(1); /* >10ns for cmnreset, >0ns for sidereset */ + } + mask = PUNIT_PWRGT_MASK(power_well_id); state = enable ? PUNIT_PWRGT_PWR_ON(power_well_id) : PUNIT_PWRGT_PWR_GATE(power_well_id);