From mboxrd@z Thu Jan 1 00:00:00 1970 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 AAC44C43458 for ; Sat, 11 Jul 2026 11:30:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 46FCA10E329; Sat, 11 Jul 2026 11:30:16 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="HRd7S6J2"; dkim-atps=neutral Received: from mail-wm1-f54.google.com (mail-wm1-f54.google.com [209.85.128.54]) by gabe.freedesktop.org (Postfix) with ESMTPS id A680B10E12D for ; Sat, 11 Jul 2026 11:30:14 +0000 (UTC) Received: by mail-wm1-f54.google.com with SMTP id 5b1f17b1804b1-493b7612475so14532465e9.3 for ; Sat, 11 Jul 2026 04:30:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1783769413; x=1784374213; darn=lists.freedesktop.org; h=content-transfer-encoding:content-type:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:from:to:cc:subject :date:message-id:reply-to:content-type; bh=5QOYuBuFYonksMICuOqLNIqvdCeFDaeT9j663AOIOPE=; b=HRd7S6J2KnPM3fqyoS+DUh4lbDyMvPGGT+dosxSAqjG1DNIAhR67tjY94YhSfAYNIF cqclNjnf19bCR6Uqj+ogFtWT1SwNk8L0UWZ0N63QhwAkgIyIffrhsEnOAtF4bH56IoKi /5m63PtFu4FWxsM8dEERuzNz3kFZNWCQwhIhd36NLLB4selAygAOn+Xw7DEFrsXJQLcb QYAJU3RQGFs/+u3jGczTV4jidHWzl/3ChxRAs9qjQUivQ2ooWS4FkKhysWDBtvDIw5N8 9NRd+vAp0lBCj2YPkJFf6rL8bdJeS+NCQBAlQnCNyWbpy+OAu1/15UDOr3fz9Oy+sBbw 5c2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783769413; x=1784374213; h=content-transfer-encoding:content-type:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=5QOYuBuFYonksMICuOqLNIqvdCeFDaeT9j663AOIOPE=; b=gF32a5TWxYbJ7hkdfVIUtX31kicaKdYQFfIP4EJ15KKP+Wh+cXKs2U+ShKLaMPYikq U2P9An85NQq8f+qWXaPAXOVgYBiAZe2lD5tx9SsMHxrdlFpahJ7NDI/jn2PF1qoyUwCr ES6+cIXbly916Q9986Qf45I4aRggkIbGvDtAonEFrGSn9BA98PG/w6bL5sHpngBeHCJF /pZ0OvS3vYBrMnLUf7LmDm4TNqfCUAmlOZ+Hu9V68HfNGZyNSFATiW0jMFI+kqBWNwbk A6b82MbHV0/S+FLdDe5NGd5Jgh/qmDIMi9wNvS4tgMCrJMbLbTtEZrUGpNL1NwwTRvNU edoA== X-Gm-Message-State: AOJu0YyBApMOpSjqTdFoTWtgwPpijYn2OuQHwWQKKT/h/mPgeAyCaqEb qsajR7Q+v3tA0a8DZ8vV8A1G9r/8sc6Y41ahxq72FTIiY/5bCiR8CdgwYzTLww== X-Gm-Gg: AfdE7clBiTZdWfK9vjJN1+lF4ldtsVpvy/IX/PCOmktSpXpDNXWEHqTtr0ubXFKiGDH YBRCTzY1QkRaO4fxA66ewPCx+ohE7MbZqsijMSyBjzFBoAhOb6QYWXdzNrC01lMPqHbSx2Z0FMg jOiOd58kROcfSqpdU7SvdiYuQcmrOMQXXS2MVt9M0kvOoi4EyVfSxTCkuEvCxtP/j42BAbZOAML eAcwPHbAZHEVCNqw6GEMSBDZfR0lrMVrDOzq7grzhvVuB7ePBXq1oMlUFuiYdZbKzNRNvoaQYq6 eLugD1KWHJgZ0W1RIA27SLsP3a9D9oXujQIEKfED/Hmonf5U/gqv0dxocVMVZGCA0x2RLB/nEUQ 5uvNMnaqVWrBOdIpwr3jl2umOI9m1LZEaHL26vG8uAU+CakLe0DyQOecdchTCRxMRDsl+CfgllJ Ofbj0V8d58ikxNWuv6f5luqTYV7RdekMF+6kevWejKzNjHNtoCBQo0PQ== X-Received: by 2002:a05:600c:c16e:b0:493:f734:f121 with SMTP id 5b1f17b1804b1-493f881d3b6mr21986445e9.23.1783769412953; Sat, 11 Jul 2026 04:30:12 -0700 (PDT) Received: from Timur-Hyperion.home (54001386.dsl.pool.telekom.hu. [84.0.19.134]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-493eb6f373csm349931035e9.14.2026.07.11.04.30.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 Jul 2026 04:30:12 -0700 (PDT) From: =?UTF-8?q?Timur=20Krist=C3=B3f?= To: amd-gfx@lists.freedesktop.org, Alex Deucher , Tvrtko Ursulin , Natalie Vock , Melissa Wen , mario.limonciello@amd.com, alex.hung@amd.com, harry.wentland@amd.com Cc: =?UTF-8?q?Timur=20Krist=C3=B3f?= Subject: [PATCH 2/2] drm/amd/display: Check HDMI FRL support before creating polling workqueue Date: Sat, 11 Jul 2026 13:30:09 +0200 Message-ID: <20260711113009.26512-2-timur.kristof@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260711113009.26512-1-timur.kristof@gmail.com> References: <20260711113009.26512-1-timur.kristof@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" The workqueue is not necessary when FRL is not supported or when it's disabled. Add a helper to tell when the current board has any HDMI FRL capable connectors and call that before creating the workqueue. Signed-off-by: Timur Kristóf --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- drivers/gpu/drm/amd/display/dc/core/dc.c | 26 +++++++++++++++++++ drivers/gpu/drm/amd/display/dc/dc.h | 2 ++ 3 files changed, 29 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 6299f0e384f1..87d7b60ceb3f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -827,7 +827,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) dc_init_callbacks(adev->dm.dc, &init_params); } - if (adev->dm.dc->caps.max_links > 0) { + if (dc_is_hdmi_frl_supported(adev->dm.dc)) { adev->dm.hdmi_frl_status_polling_wq = create_singlethread_workqueue("hdmi_frl_status_polling_wq"); if (!adev->dm.hdmi_frl_status_polling_wq) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 1b6627a92d24..1a7073abb8ba 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -6592,6 +6592,32 @@ void dc_mclk_switch_using_fw_based_vblank_stretch_shut_down(struct dc *dc) dc->current_state->bw_ctx.bw.dcn.clk.fw_based_mclk_switching_shut_down = true; } +/** + * dc_is_hdmi_frl_supported() - Check HDMI FRL support + * + * @dc: [in] dc structure + * + * Return: + * True if the current board has any HDMI FRL capable connectors, + * False otherwise. + */ +bool dc_is_hdmi_frl_supported(struct dc *dc) +{ + int i; + + if (!dc->config.enable_frl) + return false; + + for (i = 0; i < dc->link_count; ++i) { + if (dc->links[i] && + dc->links[i]->link_enc && + dc->links[i]->link_enc->features.flags.bits.IS_HDMI_FRL_CAPABLE) + return true; + } + + return false; +} + /** * dc_is_dmub_outbox_supported - Check if DMUB firmware support outbox notification * diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 13c1f7cd9d7d..d27c7437ee7a 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -3056,6 +3056,8 @@ bool dc_set_ips_disable(struct dc *dc, unsigned int disable_ips); void dc_z10_restore(const struct dc *dc); void dc_z10_save_init(struct dc *dc); +bool dc_is_hdmi_frl_supported(struct dc *dc); + bool dc_is_dmub_outbox_supported(struct dc *dc); bool dc_enable_dmub_notifications(struct dc *dc); -- 2.55.0