From patchwork Tue Jan 25 08:58:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 12723501 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 3591DC433F5 for ; Tue, 25 Jan 2022 09:12:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C702010EEF3; Tue, 25 Jan 2022 09:12:24 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id E56BF10EEF3; Tue, 25 Jan 2022 09:12:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643101941; x=1674637941; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=20Dy+Cod31MYR/zJV9wtDFBhZU+1b0D0uQWNfLXW37o=; b=FS4+RTgqTDGpFBdVNeMqbYTlTCMV9tYLDlHy1ucj3IO3aDkZDSHlgdfM Rbfbo2DBakotuQIu5G13jKBBDN727V+BvaMN/T7t/lGIBgP78USao7RAY HvRBvfz+42sTJ0MBp6TuwPjfGf86abQ0DemSRbJPtQmxO/b48i8Ytspnr qO2seCKlP3sJV+8rX1Lq1G9Lt9X0FbmmB1EI1Bv3qDKiNSYUhrR8HtDAF iH90CiYxrUFdNAmF7ZjDvkrIxOjch5LxRChdgtog/TfdS1Y4xbucdmrjw sdW47lhVVUeaBP7ll52bPEjrVsLcV1xvJAeUFAqO/SSOtBB+NPQTaj2Ot A==; X-IronPort-AV: E=McAfee;i="6200,9189,10237"; a="246042331" X-IronPort-AV: E=Sophos;i="5.88,314,1635231600"; d="scan'208";a="246042331" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2022 01:12:20 -0800 X-IronPort-AV: E=Sophos;i="5.88,314,1635231600"; d="scan'208";a="695768104" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2022 01:12:18 -0800 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Tue, 25 Jan 2022 14:28:00 +0530 Message-Id: <20220125085801.1025521-3-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220125085801.1025521-1-ankit.k.nautiyal@intel.com> References: <20220125085801.1025521-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/3] drm/drm_edid: Add helper to get max FRL rate for an HDMI sink 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" Move the common function for getting the max FRL rate for an HDMI sink, from intel_dp.c to drm/drm_edid. Signed-off-by: Ankit Nautiyal --- drivers/gpu/drm/drm_edid.c | 38 +++++++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_dp.c | 19 ++++--------- include/drm/drm_edid.h | 2 ++ 3 files changed, 45 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index eb61a1a92dc0..75b538b4c87f 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -6176,3 +6176,41 @@ void drm_update_tile_info(struct drm_connector *connector, connector->tile_group = NULL; } } + +/** + * drm_hdmi_sink_max_frl - get the max frl rate from HDMI2.1 sink + * @connector - connector with HDMI2.1 sink + * + * RETURNS: + * max frl rate supported by the HDMI2.1 sink, 0 if FRL not supported + */ +int drm_hdmi_sink_max_frl(struct drm_connector *connector) +{ + int max_lanes = connector->display_info.hdmi.max_lanes; + int rate_per_lane = connector->display_info.hdmi.max_frl_rate_per_lane; + + return max_lanes * rate_per_lane; +} +EXPORT_SYMBOL(drm_hdmi_sink_max_frl); + +/** + * drm_hdmi_sink_dsc_max_frl - get the max frl rate from HDMI2.1 sink + * with DSC1.2 compression. + * @connector - connector with HDMI2.1 sink + * + * RETURNS: + * max frl rate supported by the HDMI2.1 sink with DSC1.2, 0 if FRL not supported + */ +int drm_hdmi_sink_dsc_max_frl(struct drm_connector *connector) +{ + int max_dsc_lanes, dsc_rate_per_lane; + + if (!connector->display_info.hdmi.dsc_cap.v_1p2) + return 0; + + max_dsc_lanes = connector->display_info.hdmi.dsc_cap.max_lanes; + dsc_rate_per_lane = connector->display_info.hdmi.dsc_cap.max_frl_rate_per_lane; + + return max_dsc_lanes * dsc_rate_per_lane; +} +EXPORT_SYMBOL(drm_hdmi_sink_dsc_max_frl); diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 4d4579a301f6..f7fe7de7e553 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2190,22 +2190,13 @@ static int intel_dp_hdmi_sink_max_frl(struct intel_dp *intel_dp) { struct intel_connector *intel_connector = intel_dp->attached_connector; struct drm_connector *connector = &intel_connector->base; - int max_frl_rate; - int max_lanes, rate_per_lane; - int max_dsc_lanes, dsc_rate_per_lane; + int max_frl = drm_hdmi_sink_max_frl(connector); + int dsc_max_frl = drm_hdmi_sink_dsc_max_frl(connector); - max_lanes = connector->display_info.hdmi.max_lanes; - rate_per_lane = connector->display_info.hdmi.max_frl_rate_per_lane; - max_frl_rate = max_lanes * rate_per_lane; + if (dsc_max_frl) + return min(max_frl, dsc_max_frl); - if (connector->display_info.hdmi.dsc_cap.v_1p2) { - max_dsc_lanes = connector->display_info.hdmi.dsc_cap.max_lanes; - dsc_rate_per_lane = connector->display_info.hdmi.dsc_cap.max_frl_rate_per_lane; - if (max_dsc_lanes && dsc_rate_per_lane) - max_frl_rate = min(max_frl_rate, max_dsc_lanes * dsc_rate_per_lane); - } - - return max_frl_rate; + return max_frl; } static bool diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 18f6c700f6d0..5003e1254c44 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -592,6 +592,8 @@ drm_display_mode_from_cea_vic(struct drm_device *dev, u8 video_code); const u8 *drm_find_edid_extension(const struct edid *edid, int ext_id, int *ext_index); +int drm_hdmi_sink_max_frl(struct drm_connector *connector); +int drm_hdmi_sink_dsc_max_frl(struct drm_connector *connector); #endif /* __DRM_EDID_H__ */