From patchwork Mon Nov 30 20:47:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Shankar, Uma" X-Patchwork-Id: 11941291 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 D39A6C64E8A for ; Mon, 30 Nov 2020 20:14:45 +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 824962073C for ; Mon, 30 Nov 2020 20:14:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 824962073C 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 308816E866; Mon, 30 Nov 2020 20:14:44 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id C8FCD6E838 for ; Mon, 30 Nov 2020 20:14:29 +0000 (UTC) IronPort-SDR: 2CD3Dj9Wwzf5Ue9YpUmc7LdD2M/21NTeouErRZBNqH96BUgcUinqMjBl1rz/lU7PGVJ2FeoWGj rMPCNGb+tqBg== X-IronPort-AV: E=McAfee;i="6000,8403,9821"; a="190892986" X-IronPort-AV: E=Sophos;i="5.78,382,1599548400"; d="scan'208";a="190892986" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2020 12:14:24 -0800 IronPort-SDR: oVHltzORHy4uAyn8dVtVqggzEwWXjtjPZXHCRDRv1YX4b0YbVvtrD4u/URWyYw2VNj7hhtJDWA JjqIfrkmT84A== X-IronPort-AV: E=Sophos;i="5.78,382,1599548400"; d="scan'208";a="372472366" Received: from linux-desktop.iind.intel.com ([10.223.34.173]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2020 12:14:22 -0800 From: Uma Shankar To: intel-gfx@lists.freedesktop.org Date: Tue, 1 Dec 2020 02:17:35 +0530 Message-Id: <20201130204738.2443-13-uma.shankar@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201130204738.2443-1-uma.shankar@intel.com> References: <20201130204738.2443-1-uma.shankar@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [v14 12/15] drm/i915/display: Implement infoframes readback for LSPCON 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" Implemented Infoframes enabled readback for LSPCON devices. This will help align the implementation with state readback infrastructure. v2: Added proper bitmask of enabled infoframes as per Ville's recommendation. v3: Added pcon specific infoframe types instead of using the HSW one's, as recommended by Ville. v4: Addressed Ville's review comment by adding HDMI infoframe versions directly instead of DIP wrappers. v5: Re-ordered the patches to avoid potential break in usage, as suggested by Ville. Signed-off-by: Uma Shankar Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/intel_lspcon.c | 57 ++++++++++++++++++++- 1 file changed, 55 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index 303f23d35020..7768cf34f4e9 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -560,11 +560,64 @@ void lspcon_set_infoframes(struct intel_encoder *encoder, buf, ret); } +static bool _lspcon_read_avi_infoframe_enabled_mca(struct drm_dp_aux *aux) +{ + int ret; + u32 val = 0; + u16 reg = LSPCON_MCA_AVI_IF_CTRL; + + ret = drm_dp_dpcd_read(aux, reg, &val, 1); + if (ret < 0) { + DRM_ERROR("DPCD read failed, address 0x%x\n", reg); + return false; + } + + return val & LSPCON_MCA_AVI_IF_KICKOFF; +} + +static bool _lspcon_read_avi_infoframe_enabled_parade(struct drm_dp_aux *aux) +{ + int ret; + u32 val = 0; + u16 reg = LSPCON_PARADE_AVI_IF_CTRL; + + ret = drm_dp_dpcd_read(aux, reg, &val, 1); + if (ret < 0) { + DRM_ERROR("DPCD read failed, address 0x%x\n", reg); + return false; + } + + return val & LSPCON_PARADE_AVI_IF_KICKOFF; +} + u32 lspcon_infoframes_enabled(struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config) { - /* FIXME actually read this from the hw */ - return 0; + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + struct intel_lspcon *lspcon = enc_to_intel_lspcon(encoder); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + bool infoframes_enabled; + u32 val = 0; + u32 mask, tmp; + + if (lspcon->vendor == LSPCON_VENDOR_MCA) + infoframes_enabled = _lspcon_read_avi_infoframe_enabled_mca(&intel_dp->aux); + else + infoframes_enabled = _lspcon_read_avi_infoframe_enabled_parade(&intel_dp->aux); + + if (infoframes_enabled) + val |= intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI); + + if (lspcon->hdr_supported) { + tmp = intel_de_read(dev_priv, + HSW_TVIDEO_DIP_CTL(pipe_config->cpu_transcoder)); + mask = VIDEO_DIP_ENABLE_GMP_HSW; + + if (tmp & mask) + val |= intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA); + } + + return val; } void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon)