From patchwork Wed Aug 31 21:49:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sripada, Radhakrishna" X-Patchwork-Id: 12961448 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 4B995ECAAD1 for ; Wed, 31 Aug 2022 21:51:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0C04510E51A; Wed, 31 Aug 2022 21:51:07 +0000 (UTC) Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0CB8D10E3EB; Wed, 31 Aug 2022 21:50:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1661982633; x=1693518633; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OhfoVFmAQIWkcNu0Wkax7GkHG7e4vmagjC97LX0fUjM=; b=ZycHDV7sj9omr7UBYEacP2aOiHHkwWEsQwWG8u+e+uvdYjYg3GqV0EBh v7AiT+y4xewDxh2j0mhZw6T1qFrdoER3tCNrhbaQxO7eahYd8aP175r7s 1LyrenoHctbPTbyrvyLLQNxhV0MV5FWWu1Z++Ja5WB6LrbUmIx8rkJUZv eLNsamjFHc19j8AosL/QobAyxlKfZBdsiQDMe5fkFG+XDBFnAxeayAZF5 Q7tvvmMfFwquO4ypyfxGK8jg+pggkeoV6gpA6bkDBRJA55Q+5Al3fU/9r /IpLY+uFrp++9oUk9171kvdiD89x3V7JGUlZ8ggHtvtYIucIwzP5tKESz A==; X-IronPort-AV: E=McAfee;i="6500,9779,10456"; a="357270165" X-IronPort-AV: E=Sophos;i="5.93,279,1654585200"; d="scan'208";a="357270165" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Aug 2022 14:50:32 -0700 X-IronPort-AV: E=Sophos;i="5.93,279,1654585200"; d="scan'208";a="940586231" Received: from invictus.jf.intel.com ([10.165.21.206]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Aug 2022 14:50:31 -0700 From: Radhakrishna Sripada To: intel-gfx@lists.freedesktop.org Date: Wed, 31 Aug 2022 14:49:54 -0700 Message-Id: <20220831214958.109753-8-radhakrishna.sripada@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220831214958.109753-1-radhakrishna.sripada@intel.com> References: <20220831214958.109753-1-radhakrishna.sripada@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 07/11] 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 98bd33645b43..48c375c65a41 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 42e26057f44a..18adfd8126a2 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3470,6 +3470,15 @@ _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)