From patchwork Sat May 15 03:10:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 12259395 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 8FE39C43460 for ; Sat, 15 May 2021 03:10:53 +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 5A36D6144A for ; Sat, 15 May 2021 03:10:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5A36D6144A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EA9416F4DF; Sat, 15 May 2021 03:10:47 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id B8F656F4DD for ; Sat, 15 May 2021 03:10:43 +0000 (UTC) IronPort-SDR: dc9As1QBt4co0FpK6yFykI4J2aSR+ALQPKx91oTDHdvFdlXZJVR+3gE9qGbSep1PF6W1Y6b1rv tdieX6ZQ3JHg== X-IronPort-AV: E=McAfee;i="6200,9189,9984"; a="187383713" X-IronPort-AV: E=Sophos;i="5.82,300,1613462400"; d="scan'208";a="187383713" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2021 20:10:43 -0700 IronPort-SDR: yL4IKkW1x+NLWlwIhSQW8vmMmwulAbTD5oezhZyaaLjaqDBgnl+Cfjq7JQWkeHXrbtbJybqb55 kT5CiVFnFdPQ== X-IronPort-AV: E=Sophos;i="5.82,300,1613462400"; d="scan'208";a="392901216" Received: from mdroper-desk1.fm.intel.com ([10.1.27.168]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2021 20:10:43 -0700 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Fri, 14 May 2021 20:10:31 -0700 Message-Id: <20210515031035.2561658-20-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210515031035.2561658-1-matthew.d.roper@intel.com> References: <20210515031035.2561658-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v4 19/23] drm/i915/adl_p: Define and use ADL-P specific DP translation tables 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: Mika Kahola Define and use DP voltage swing and pre-emphasis translation tables for ADL-P. v2: - Update according to recent bspec updates; there are now separate tables for RBR/HBR and HBR2/HBR3. (Anusha) BSpec: 54956 Cc: Imre Deak Signed-off-by: Mika Kahola Signed-off-by: Clinton Taylor Signed-off-by: Matt Roper Reviewed-by: Clint Taylor --- drivers/gpu/drm/i915/display/intel_ddi.c | 7 ++- .../drm/i915/display/intel_ddi_buf_trans.c | 53 +++++++++++++++++++ .../drm/i915/display/intel_ddi_buf_trans.h | 4 ++ 3 files changed, 63 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 38a4f251b9c9..e0adb14ecd0d 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -985,6 +985,8 @@ static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp, if (DISPLAY_VER(dev_priv) >= 12) { if (intel_phy_is_combo(dev_priv, phy)) tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries); + else if (IS_ALDERLAKE_P(dev_priv)) + adlp_get_dkl_buf_trans(encoder, crtc_state, &n_entries); else tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); } else if (DISPLAY_VER(dev_priv) == 11) { @@ -1431,7 +1433,10 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder, if (enc_to_dig_port(encoder)->tc_mode == TC_PORT_TBT_ALT) return; - ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); + if (IS_ALDERLAKE_P(dev_priv)) + ddi_translations = adlp_get_dkl_buf_trans(encoder, crtc_state, &n_entries); + else + ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations)) return; diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c index 7bcdd5c12028..b6388d93c3ea 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c +++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c @@ -735,6 +735,34 @@ static const struct cnl_ddi_buf_trans rkl_combo_phy_ddi_translations_dp_hbr2_hbr { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */ }; +static const struct tgl_dkl_phy_ddi_buf_trans adlp_dkl_phy_dp_ddi_trans_hbr[] = { + /* VS pre-emp Non-trans mV Pre-emph dB */ + { 0x7, 0x0, 0x01 }, /* 0 0 400mV 0 dB */ + { 0x5, 0x0, 0x06 }, /* 0 1 400mV 3.5 dB */ + { 0x2, 0x0, 0x0B }, /* 0 2 400mV 6 dB */ + { 0x0, 0x0, 0x17 }, /* 0 3 400mV 9.5 dB */ + { 0x5, 0x0, 0x00 }, /* 1 0 600mV 0 dB */ + { 0x2, 0x0, 0x08 }, /* 1 1 600mV 3.5 dB */ + { 0x0, 0x0, 0x14 }, /* 1 2 600mV 6 dB */ + { 0x2, 0x0, 0x00 }, /* 2 0 800mV 0 dB */ + { 0x0, 0x0, 0x0B }, /* 2 1 800mV 3.5 dB */ + { 0x0, 0x0, 0x00 }, /* 3 0 1200mV 0 dB */ +}; + +static const struct tgl_dkl_phy_ddi_buf_trans adlp_dkl_phy_dp_ddi_trans_hbr2_hbr3[] = { + /* VS pre-emp Non-trans mV Pre-emph dB */ + { 0x7, 0x0, 0x00 }, /* 0 0 400mV 0 dB */ + { 0x5, 0x0, 0x04 }, /* 0 1 400mV 3.5 dB */ + { 0x2, 0x0, 0x0A }, /* 0 2 400mV 6 dB */ + { 0x0, 0x0, 0x18 }, /* 0 3 400mV 9.5 dB */ + { 0x5, 0x0, 0x00 }, /* 1 0 600mV 0 dB */ + { 0x2, 0x0, 0x06 }, /* 1 1 600mV 3.5 dB */ + { 0x0, 0x0, 0x14 }, /* 1 2 600mV 6 dB */ + { 0x2, 0x0, 0x00 }, /* 2 0 800mV 0 dB */ + { 0x0, 0x0, 0x09 }, /* 2 1 800mV 3.5 dB */ + { 0x0, 0x0, 0x00 }, /* 3 0 1200mV 0 dB */ +}; + bool is_hobl_buf_trans(const struct cnl_ddi_buf_trans *table) { return table == tgl_combo_phy_ddi_translations_edp_hbr2_hobl; @@ -1348,6 +1376,31 @@ tgl_get_dkl_buf_trans(struct intel_encoder *encoder, return tgl_get_dkl_buf_trans_dp(encoder, crtc_state, n_entries); } +static const struct tgl_dkl_phy_ddi_buf_trans * +adlp_get_dkl_buf_trans_dp(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + int *n_entries) +{ + if (crtc_state->port_clock > 270000) { + *n_entries = ARRAY_SIZE(adlp_dkl_phy_dp_ddi_trans_hbr2_hbr3); + return adlp_dkl_phy_dp_ddi_trans_hbr; + } else { + *n_entries = ARRAY_SIZE(adlp_dkl_phy_dp_ddi_trans_hbr); + return adlp_dkl_phy_dp_ddi_trans_hbr; + } +} + +const struct tgl_dkl_phy_ddi_buf_trans * +adlp_get_dkl_buf_trans(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + int *n_entries) +{ + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) + return tgl_get_dkl_buf_trans_hdmi(encoder, crtc_state, n_entries); + else + return adlp_get_dkl_buf_trans_dp(encoder, crtc_state, n_entries); +} + int intel_ddi_hdmi_num_entries(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, int *default_entry) diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h index f8f0ef87e977..4c2efab38642 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h +++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h @@ -67,6 +67,10 @@ bxt_get_buf_trans(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, int *n_entries); +const struct tgl_dkl_phy_ddi_buf_trans * +adlp_get_dkl_buf_trans(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + int *n_entries); const struct cnl_ddi_buf_trans * tgl_get_combo_buf_trans(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state,