From patchwork Fri Oct 23 10:01:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ander Conselvan de Oliveira X-Patchwork-Id: 7471431 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 4600EBEEA4 for ; Fri, 23 Oct 2015 10:02:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8C23020867 for ; Fri, 23 Oct 2015 10:02:49 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id B065420847 for ; Fri, 23 Oct 2015 10:02:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A25D6721C5; Fri, 23 Oct 2015 03:02:46 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id ECC04721BA for ; Fri, 23 Oct 2015 03:02:42 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 23 Oct 2015 03:02:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,186,1444719600"; d="scan'208";a="833325141" Received: from linux.intel.com ([10.23.219.25]) by orsmga002.jf.intel.com with ESMTP; 23 Oct 2015 03:02:23 -0700 Received: from localhost (aconselv-mobl3.ger.corp.intel.com [10.252.19.216]) by linux.intel.com (Postfix) with ESMTP id 19CD36A4083; Fri, 23 Oct 2015 03:01:21 -0700 (PDT) From: Ander Conselvan de Oliveira To: intel-gfx@lists.freedesktop.org, jim.bride@linux.intel.com, sivakumar.thulasimani@intel.com Date: Fri, 23 Oct 2015 13:01:49 +0300 Message-Id: <1445594525-7174-7-git-send-email-ander.conselvan.de.oliveira@intel.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1445594525-7174-1-git-send-email-ander.conselvan.de.oliveira@intel.com> References: <1445594525-7174-1-git-send-email-ander.conselvan.de.oliveira@intel.com> Cc: Ander Conselvan de Oliveira Subject: [Intel-gfx] [PATCH 06/22] drm/i915: Create intel_dp->prepare_link_retrain() hook 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 In order to prepare for a link training with DDI, the state machine would call intel_ddi_prepare_link_retrain(). To remove the dependency to the hardware information, replace that direct call with a callback. Signed-off-by: Ander Conselvan de Oliveira Reviewed-by: Sivakumar Thulasimani --- drivers/gpu/drm/i915/intel_ddi.c | 8 ++++---- drivers/gpu/drm/i915/intel_dp.c | 3 +++ drivers/gpu/drm/i915/intel_dp_link_training.c | 6 ++---- drivers/gpu/drm/i915/intel_drv.h | 6 +++++- 4 files changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index a163741..80843d9 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -2971,11 +2971,11 @@ void intel_ddi_pll_init(struct drm_device *dev) } } -void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder) +void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp) { - struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); - struct intel_dp *intel_dp = &intel_dig_port->dp; - struct drm_i915_private *dev_priv = encoder->dev->dev_private; + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + struct drm_i915_private *dev_priv = + to_i915(intel_dig_port->base.base.dev); enum port port = intel_dig_port->port; uint32_t val; bool wait = false; diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4b88823..5b04ade 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5731,6 +5731,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, else intel_dp->get_aux_send_ctl = i9xx_get_aux_send_ctl; + if (HAS_DDI(dev)) + intel_dp->prepare_link_retrain = intel_ddi_prepare_link_retrain; + /* Preserve the current hw state. */ intel_dp->DP = I915_READ(intel_dp->output_reg); intel_dp->attached_connector = intel_connector; diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c index 53f9c14..bb036d5 100644 --- a/drivers/gpu/drm/i915/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c @@ -108,16 +108,14 @@ intel_dp_update_link_train(struct intel_dp *intel_dp) static void intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp) { - struct drm_encoder *encoder = &dp_to_dig_port(intel_dp)->base.base; - struct drm_device *dev = encoder->dev; int i; uint8_t voltage; int voltage_tries, loop_tries; uint8_t link_config[2]; uint8_t link_bw, rate_select; - if (HAS_DDI(dev)) - intel_ddi_prepare_link_retrain(encoder); + if (intel_dp->prepare_link_retrain) + intel_dp->prepare_link_retrain(intel_dp); intel_dp_compute_rate(intel_dp, intel_dp->link_rate, &link_bw, &rate_select); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 25ac5d2..1c2a8ed 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -784,6 +784,10 @@ struct intel_dp { bool has_aux_irq, int send_bytes, uint32_t aux_clock_divider); + + /* This is called before a link training is starterd */ + void (*prepare_link_retrain)(struct intel_dp *intel_dp); + bool train_set_valid; /* Displayport compliance testing */ @@ -988,7 +992,7 @@ void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc); bool intel_ddi_pll_select(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state); void intel_ddi_set_pipe_settings(struct drm_crtc *crtc); -void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder); +void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp); bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector); void intel_ddi_fdi_disable(struct drm_crtc *crtc); void intel_ddi_get_config(struct intel_encoder *encoder,