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 X-Spam-Level: X-Spam-Status: No, score=-11.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA772C433E5 for ; Tue, 21 Jul 2020 00:09:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9B7D92080D for ; Tue, 21 Jul 2020 00:09:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B7D92080D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 821366E0E3; Tue, 21 Jul 2020 00:09:40 +0000 (UTC) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 76B3089CF6; Tue, 21 Jul 2020 00:09:38 +0000 (UTC) IronPort-SDR: CATOZnDOpMznYvNuFuTnGG6LrkZ2yaa8MMxkZV78kBeMUg12PMIfkpg9onZgNAqM8HZwz2ezqS pFtY0S2Mb+zw== X-IronPort-AV: E=McAfee;i="6000,8403,9688"; a="211572679" X-IronPort-AV: E=Sophos;i="5.75,375,1589266800"; d="scan'208";a="211572679" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2020 17:09:37 -0700 IronPort-SDR: 4mgOu0hilrAWKWwnbMC+g4e59/M97jzFT4GW9xuzBmjtUZUGZEipI+JObnP9fgEkTdrq3zsZfs ntpNmkI1h0kA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,375,1589266800"; d="scan'208";a="283688535" Received: from labuser-z97x-ud5h.jf.intel.com (HELO intel.com) ([10.165.21.211]) by orsmga003.jf.intel.com with ESMTP; 20 Jul 2020 17:09:37 -0700 Date: Mon, 20 Jul 2020 17:11:49 -0700 From: Manasi Navare To: Khaled Almahallawy Subject: Re: [PATCH 2/2] drm/i915/dp: TPS4 PHY test pattern compliance support Message-ID: <20200721001149.GB14395@intel.com> References: <20200720234126.11853-1-khaled.almahallawy@intel.com> <20200720234126.11853-2-khaled.almahallawy@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200720234126.11853-2-khaled.almahallawy@intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, animesh.manna@intel.com, dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Mon, Jul 20, 2020 at 04:41:26PM -0700, Khaled Almahallawy wrote: > Adding support for TPS4 (CP2520 Pattern 3) PHY pattern source tests. > > Signed-off-by: Khaled Almahallawy > --- > drivers/gpu/drm/i915/display/intel_dp.c | 14 ++++++++++++-- > drivers/gpu/drm/i915/i915_reg.h | 4 ++++ > 2 files changed, 16 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index d6295eb20b63..effadc096740 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -5371,7 +5371,7 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp) > &intel_dp->compliance.test_data.phytest; > struct intel_crtc *crtc = to_intel_crtc(dig_port->base.base.crtc); > enum pipe pipe = crtc->pipe; > - u32 pattern_val; > + u32 pattern_val, dp_tp_ctl; > > switch (data->phy_pattern) { > case DP_PHY_TEST_PATTERN_NONE: > @@ -5411,7 +5411,7 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp) > DDI_DP_COMP_CTL_ENABLE | > DDI_DP_COMP_CTL_CUSTOM80); > break; > - case DP_PHY_TEST_PATTERN_CP2520: > + case DP_PHY_TEST_PATTERN_CP2520_PAT1: > /* > * FIXME: Ideally pattern should come from DPCD 0x24A. As > * current firmware of DPR-100 could not set it, so hardcoding > @@ -5423,6 +5423,16 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp) > DDI_DP_COMP_CTL_ENABLE | DDI_DP_COMP_CTL_HBR2 | > pattern_val); > break; > + case DP_PHY_TEST_PATTERN_CP2520_PAT3: > + DRM_DEBUG_KMS("Set TPS4 Phy Test Pattern\n"); > + intel_de_write(dev_priv, DDI_DP_COMP_CTL(pipe), 0x0); > + dp_tp_ctl = intel_de_read(dev_priv, TGL_DP_TP_CTL(pipe)); > + dp_tp_ctl &= ~DP_TP_CTL_TRAIN_PAT4_SEL_MASK; > + dp_tp_ctl |= DP_TP_CTL_TRAIN_PAT4_SEL_TS4a; > + dp_tp_ctl &= ~DP_TP_CTL_LINK_TRAIN_MASK; > + dp_tp_ctl |= DP_TP_CTL_LINK_TRAIN_PAT4; > + intel_de_write(dev_priv, TGL_DP_TP_CTL(pipe), dp_tp_ctl); > + break; > default: > WARN(1, "Invalid Phy Test Pattern\n"); > } > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index a0d31f3bf634..a4607bd1ac26 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -9982,6 +9982,10 @@ enum skl_power_gate { > #define DP_TP_CTL_MODE_SST (0 << 27) > #define DP_TP_CTL_MODE_MST (1 << 27) > #define DP_TP_CTL_FORCE_ACT (1 << 25) > +#define DP_TP_CTL_TRAIN_PAT4_SEL_MASK (3 << 19) > +#define DP_TP_CTL_TRAIN_PAT4_SEL_TS4a (0 << 19) > +#define DP_TP_CTL_TRAIN_PAT4_SEL_TP4b (1 << 19) > +#define DP_TP_CTL_TRAIN_PAT4_SEL_TP4c (2 << 19) The bspec calls them Training Pattern 4a/b/c, why is it _TS4a. TP4b, TP4c? We shd make it uniform, all TP4a/b/c perhaps? Manasi > #define DP_TP_CTL_ENHANCED_FRAME_ENABLE (1 << 18) > #define DP_TP_CTL_FDI_AUTOTRAIN (1 << 15) > #define DP_TP_CTL_LINK_TRAIN_MASK (7 << 8) > -- > 2.17.1 > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel