From patchwork Wed Jan 29 20:02:14 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Imre Deak X-Patchwork-Id: 13954094 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8A5F5C02194 for ; Wed, 29 Jan 2025 20:01:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2806E10E8B0; Wed, 29 Jan 2025 20:01:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="XtQvziQh"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9401510E89A; Wed, 29 Jan 2025 20:01:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1738180913; x=1769716913; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=3x3/9ZidmbfgPxhdDKLCgL4PzXhXMvSG42IwgElzJLA=; b=XtQvziQh3AK8nJs/wr2Mph/rGjDQ+APNBZspsCZA3DzBmLYqQKgQexXU EGzKImXQtMs+xc3ctfspqRrO0283i53iB1rn061s6m+RKzpkr01eKhPTY 2YZH3ZAigk+a+B9GAGLlk6aDq2C9mgTN0SWbcCprYiG5N/GhF9lSm+ljU jJkZ/nzpqn1YxYBKebIDSH2vL/VHK93fgarec1oDplmkpi2ef+l5P+bGd IqW73kvOYEBTUGfu61kZBbUBc3yGgi32LNkLxSGgDg1K4LIXzeZDSbjc6 lirQze2WO9maZg2KGqk/oiLWK3e+ttzid125zt7k/D2kE6WcbLRZY7LMo g==; X-CSE-ConnectionGUID: Fz+KyuuzRcOPAHQD9WcYmA== X-CSE-MsgGUID: lMm/R9KZT9uEUfSoREDWIQ== X-IronPort-AV: E=McAfee;i="6700,10204,11330"; a="38977710" X-IronPort-AV: E=Sophos;i="6.13,244,1732608000"; d="scan'208";a="38977710" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2025 12:01:38 -0800 X-CSE-ConnectionGUID: EsL5ojutT5ilL0buDEtt/w== X-CSE-MsgGUID: bMUSaT6mSHCba3LUR0hOZQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="113750906" Received: from ideak-desk.fi.intel.com ([10.237.72.78]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2025 12:01:36 -0800 From: Imre Deak To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Subject: [PATCH 10/17] drm/i915/ddi: Add a helper to enable a port Date: Wed, 29 Jan 2025 22:02:14 +0200 Message-ID: <20250129200221.2508101-11-imre.deak@intel.com> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20250129200221.2508101-1-imre.deak@intel.com> References: <20250129200221.2508101-1-imre.deak@intel.com> MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 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" Add a helper to enable a port instead of open-coding it. Signed-off-by: Imre Deak Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_ddi.c | 34 +++++++++++------------- 1 file changed, 16 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 73702ccbb3773..ddb182550ad0f 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3057,6 +3057,17 @@ mtl_ddi_disable_d2d_link(struct intel_encoder *encoder) port_name(port)); } +static void intel_enable_ddi_buf(struct intel_encoder *encoder, u32 buf_ctl) +{ + struct intel_display *display = to_intel_display(encoder); + enum port port = encoder->port; + + intel_de_write(display, DDI_BUF_CTL(port), buf_ctl | DDI_BUF_CTL_ENABLE); + intel_de_posting_read(display, DDI_BUF_CTL(port)); + + intel_wait_ddi_buf_active(encoder); +} + static void intel_disable_ddi_buf(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { @@ -3375,7 +3386,7 @@ static void intel_ddi_enable_hdmi(struct intel_atomic_state *state, struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct drm_connector *connector = conn_state->connector; enum port port = encoder->port; - u32 buf_ctl; + u32 buf_ctl = 0; if (!intel_hdmi_handle_sink_scrambling(encoder, connector, crtc_state->hdmi_high_tmds_clock_ratio, @@ -3440,8 +3451,6 @@ static void intel_ddi_enable_hdmi(struct intel_atomic_state *state, * is filled with lane count, already set in the crtc_state. * The same is required to be filled in PORT_BUF_CTL for C10/20 Phy. */ - buf_ctl = DDI_BUF_CTL_ENABLE; - if (dig_port->lane_reversal) buf_ctl |= DDI_BUF_PORT_REVERSAL; if (dig_port->ddi_a_4_lanes) @@ -3467,9 +3476,7 @@ static void intel_ddi_enable_hdmi(struct intel_atomic_state *state, buf_ctl |= DDI_BUF_CTL_TC_PHY_OWNERSHIP; } - intel_de_write(dev_priv, DDI_BUF_CTL(port), buf_ctl); - - intel_wait_ddi_buf_active(encoder); + intel_enable_ddi_buf(encoder, buf_ctl); } static void intel_ddi_enable(struct intel_atomic_state *state, @@ -3692,7 +3699,6 @@ static void mtl_ddi_prepare_link_retrain(struct intel_dp *intel_dp, struct intel_display *display = to_intel_display(crtc_state); struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct intel_encoder *encoder = &dig_port->base; - enum port port = encoder->port; u32 dp_tp_ctl; /* @@ -3726,15 +3732,11 @@ static void mtl_ddi_prepare_link_retrain(struct intel_dp *intel_dp, mtl_port_buf_ctl_program(encoder, crtc_state); /* 6.i Configure and enable DDI_CTL_DE to start sending valid data to port slice */ - intel_dp->DP |= DDI_BUF_CTL_ENABLE; if (DISPLAY_VER(display) >= 20) intel_dp->DP |= XE2LPD_DDI_BUF_D2D_LINK_ENABLE; - intel_de_write(display, DDI_BUF_CTL(port), intel_dp->DP); - intel_de_posting_read(display, DDI_BUF_CTL(port)); - - /* 6.j Poll for PORT_BUF_CTL Idle Status == 0, timeout after 100 us */ - intel_wait_ddi_buf_active(encoder); + intel_enable_ddi_buf(encoder, intel_dp->DP); + intel_dp->DP |= DDI_BUF_CTL_ENABLE; } static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp, @@ -3743,7 +3745,6 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp, struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct intel_encoder *encoder = &dig_port->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - enum port port = encoder->port; u32 dp_tp_ctl; dp_tp_ctl = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); @@ -3766,11 +3767,8 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp, (intel_tc_port_in_dp_alt_mode(dig_port) || intel_tc_port_in_legacy_mode(dig_port))) adlp_tbt_to_dp_alt_switch_wa(encoder); + intel_enable_ddi_buf(encoder, intel_dp->DP); intel_dp->DP |= DDI_BUF_CTL_ENABLE; - intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP); - intel_de_posting_read(dev_priv, DDI_BUF_CTL(port)); - - intel_wait_ddi_buf_active(encoder); } static void intel_ddi_set_link_train(struct intel_dp *intel_dp,