From patchwork Thu Aug 18 23:41:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sripada, Radhakrishna" X-Patchwork-Id: 12948171 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 EE19EC00140 for ; Thu, 18 Aug 2022 23:44:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 043C110E925; Thu, 18 Aug 2022 23:43:49 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3EE1710E536; Thu, 18 Aug 2022 23:42:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660866152; x=1692402152; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Eu7K5qTPnucX3SyoUhZKYrXZJKpcePF5Vk+KhXw/DGA=; b=OpWth7sDvEvocxnR81AaDVbY5VU8XPhIqu6VTviCW9c+Z3p9/+AAS7KG 1wkA0RPcCio/8Fi0DFrM/vgnuHXypQ5ziW5641dcyMvrKAmEdMJ2T/e/L srW9SMtaB5FSwCaWBf1F04R6grzP9395sponZ0hrMXlj2oB9vs1mkd120 BJ0MKrktf+ACGlzz/7YLgA3EiuyzDXc4/qUKM2vj5dpV9PWoxlmHSXcoe 46zxBWXpV8J9DPCK0ZjpX+MCI/D0waEJhnknkot/LKiE0DFewMJaL7F9T OfJYpJxhDhcsewhYSbd/3q74a3YafbrVytFYx9EgwnTu74aL/5nfWGtVY g==; X-IronPort-AV: E=McAfee;i="6500,9779,10443"; a="275938522" X-IronPort-AV: E=Sophos;i="5.93,247,1654585200"; d="scan'208";a="275938522" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2022 16:42:28 -0700 X-IronPort-AV: E=Sophos;i="5.93,247,1654585200"; d="scan'208";a="783953295" Received: from invictus.jf.intel.com ([10.165.21.205]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2022 16:42:28 -0700 From: Radhakrishna Sripada To: intel-gfx@lists.freedesktop.org Date: Thu, 18 Aug 2022 16:41:52 -0700 Message-Id: <20220818234202.451742-12-radhakrishna.sripada@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220818234202.451742-1-radhakrishna.sripada@intel.com> References: <20220818234202.451742-1-radhakrishna.sripada@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 11/21] drm/i915/mtl: Add DP AUX support on TypeC ports 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: , Cc: dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Imre Deak On MTL TypeC ports the AUX_CH_CTL and AUX_CH_DATA addresses have changed wrt. previous platforms, adjust the code accordingly. Signed-off-by: Imre Deak Signed-off-by: Radhakrishna Sripada --- drivers/gpu/drm/i915/display/intel_dp_aux.c | 45 ++++++++++++++++++++- drivers/gpu/drm/i915/i915_reg.h | 9 +++++ 2 files changed, 53 insertions(+), 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 40c4bdd9cb26..10616e18dc18 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -637,6 +637,46 @@ static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index) } } +static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp) +{ + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + enum aux_ch aux_ch = dig_port->aux_ch; + + switch (aux_ch) { + case AUX_CH_A: + case AUX_CH_B: + case AUX_CH_USBC1: + case AUX_CH_USBC2: + case AUX_CH_USBC3: + case AUX_CH_USBC4: + return XELPDP_DP_AUX_CH_CTL(aux_ch); + default: + MISSING_CASE(aux_ch); + return XELPDP_DP_AUX_CH_CTL(AUX_CH_A); + } +} + +static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index) +{ + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + enum aux_ch aux_ch = dig_port->aux_ch; + + switch (aux_ch) { + case AUX_CH_A: + case AUX_CH_B: + case AUX_CH_USBC1: + case AUX_CH_USBC2: + case AUX_CH_USBC3: + case AUX_CH_USBC4: + return XELPDP_DP_AUX_CH_DATA(aux_ch, index); + default: + MISSING_CASE(aux_ch); + return XELPDP_DP_AUX_CH_DATA(AUX_CH_A, index); + } +} + void intel_dp_aux_fini(struct intel_dp *intel_dp) { if (cpu_latency_qos_request_active(&intel_dp->pm_qos)) @@ -652,7 +692,10 @@ void intel_dp_aux_init(struct intel_dp *intel_dp) struct intel_encoder *encoder = &dig_port->base; enum aux_ch aux_ch = dig_port->aux_ch; - if (DISPLAY_VER(dev_priv) >= 12) { + if (DISPLAY_VER(dev_priv) >= 14) { + intel_dp->aux_ch_ctl_reg = xelpdp_aux_ctl_reg; + intel_dp->aux_ch_data_reg = xelpdp_aux_data_reg; + } else if (DISPLAY_VER(dev_priv) >= 12) { intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg; intel_dp->aux_ch_data_reg = tgl_aux_data_reg; } else if (DISPLAY_VER(dev_priv) >= 9) { diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 234c17596c3a..04a269fa8717 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3533,6 +3533,15 @@ _XELPDP_USBC3_AUX_CH_CTL, \ _XELPDP_USBC4_AUX_CH_CTL)) +#define XELPDP_DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PICK(aux_ch, \ + _DPA_AUX_CH_DATA1, \ + _DPB_AUX_CH_DATA1, \ + 0, /* port/aux_ch C is non-existent */ \ + _XELPDP_USBC1_AUX_CH_DATA1, \ + _XELPDP_USBC2_AUX_CH_DATA1, \ + _XELPDP_USBC3_AUX_CH_DATA1, \ + _XELPDP_USBC4_AUX_CH_DATA1) + (i) * 4) + #define DP_AUX_CH_CTL_SEND_BUSY (1 << 31) #define DP_AUX_CH_CTL_DONE (1 << 30) #define DP_AUX_CH_CTL_INTERRUPT (1 << 29)