From mboxrd@z Thu Jan 1 00:00:00 1970 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 4F0BCC74A5B for ; Wed, 29 Mar 2023 17:24:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 94DF810EBC7; Wed, 29 Mar 2023 17:24:40 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3CC4610EBC7 for ; Wed, 29 Mar 2023 17:24:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680110678; x=1711646678; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=bGdUji46jKniKRmmjfjWSL5Aj21Q1qiyZGLrBLg0+LA=; b=GbwnzCBZUHHU59rfs7txH5jketqmNBodG+G6O7xl2uOTSf4HHxnTneVc fGp6aCwa4NlXAz/FYqigXOX1qab/9/hkp7T35CWT8iayLzm5f/xAuBnEl w/EilhZcy77IFpVyiNXG1lFXfn3JPPyhZvdusEQYM3YzHynqmSjKyMyXM 3u7HlU6JCzh3tlbdtIc/D95pBCRvYHZVp8iLlLWlj53o+QE6COSyjOL/n iVHV1wMDQs5nM0hfdiU1QOq5pHac+AC+KYlaqKPUVMDMYxL2dAbgY2p13 zcQtbLhl93p53Kc6YQ69D6Ugg+3QF3+wen2oKJVg7vy2AA2CkZcY/sWBg A==; X-IronPort-AV: E=McAfee;i="6600,9927,10664"; a="427221144" X-IronPort-AV: E=Sophos;i="5.98,301,1673942400"; d="scan'208";a="427221144" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2023 10:24:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10664"; a="773652615" X-IronPort-AV: E=Sophos;i="5.98,301,1673942400"; d="scan'208";a="773652615" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.70]) by FMSMGA003.fm.intel.com with SMTP; 29 Mar 2023 10:24:35 -0700 Received: by stinkbox (sSMTP sendmail emulation); Wed, 29 Mar 2023 20:24:35 +0300 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Date: Wed, 29 Mar 2023 20:24:33 +0300 Message-Id: <20230329172434.18744-1-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Intel-gfx] [PATCH 1/2] drm/i915: Fix fast wake AUX sync len 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" From: Ville Syrjälä Fast wake should use 8 SYNC pulses for the preamble and 10-16 SYNC pulses for the precharge. Recuce our fast wake SYNC count to match the maximum value. We also use the maximum precharge length for normal AUX transactions. Cc: Jouni Högander Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/intel_dp_aux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index eb07dc5d8709..ad0aac707219 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -164,7 +164,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp, DP_AUX_CH_CTL_TIME_OUT_MAX | DP_AUX_CH_CTL_RECEIVE_ERROR | (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | - DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) | + DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(24) | DP_AUX_CH_CTL_SYNC_PULSE_SKL(32); if (intel_tc_port_in_tbt_alt_mode(dig_port)) -- 2.39.2