From nobody Mon Feb 9 13:00:30 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EBD7C001DF for ; Sun, 9 Jul 2023 20:13:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230059AbjGIUNS (ORCPT ); Sun, 9 Jul 2023 16:13:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229989AbjGIUNO (ORCPT ); Sun, 9 Jul 2023 16:13:14 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC37B12A for ; Sun, 9 Jul 2023 13:13:12 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id 2adb3069b0e04-4f766777605so5682916e87.1 for ; Sun, 09 Jul 2023 13:13:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688933591; x=1691525591; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=c7lSjPQNhr0BWjor5LdaN815hU/chfe4hoYUxqnTCAI=; b=T5GzhtTyJjxGyLP24p+UvR8XLrB4NVRE7/XTXnHdYuT77xZjInL1SKJoXJXffjIa3e hUxY+aw8lZWYqavxNLsCk072IIDUzC27HS4WGJjZhXR6GsfqE10BM1LBkwHterRl5vYD ZZpRxt9ZEOzVu8OD6ELJrTwnL7hAce86y6Zu3nEHY41nQRqGO4d2lL6oczaA5sMUXdGZ tTI72OzMVuaNd9VhQlcEkzCJSz3O24Yxw8ShDUL5aJ40jVI19BKcsNB816PUuO2Xrh+A p5v5DPBxmn7jF+kjqdLcVz+cBYXAEdUdI6eg8XjNXCEM+dl+kHMyU/d/B8Rk+6zwPitS WvVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688933591; x=1691525591; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=c7lSjPQNhr0BWjor5LdaN815hU/chfe4hoYUxqnTCAI=; b=QMuBA9SJN9bSZMuGq/v7/bbFCa+zb3jhchM8Q7AQ28tnRddA4iDHjmIxv5IqHPrMgP BimHTSbTYmVd8fOwQI8mtZLwrPnQUQqtvSUGAXqyYTcAQWuyQ6ZOYKXuHbnAkvQmES6I yOlNFAz1xSEoLwZi25Md4opgVj0uMdSR5WqHa7f+sU1UaLioRZMQuI2gw2lDx39+Ltmn Nm7lMYg457I93IqOUVnD7b8EWjHzxiVZVfjggsYqFzNmjljVHem0kvy7PPjCQNnZ5Xi5 qQavDL/EmZeiSFIJHHAbQP/MgPzSLvVUfVgD5ayMQjbiTVvI44zCyYF0+Mc9rTbuFdq1 7r5g== X-Gm-Message-State: ABy/qLY/5DIefT4xWQU9wgSFyFbH4wYuD7zuz4pLPoAOypv4D54wjyBr iimjpnTiJvBO2MEZrugYl+sUgg== X-Google-Smtp-Source: APBJJlFZuEiOyJs+Wxo5yotGxmFY/kIczdsa1ko9Q5u26MRMkHnsWnGRIo9a62sNAbznJh5fjeHpqw== X-Received: by 2002:a05:6512:3295:b0:4f8:770f:1b0b with SMTP id p21-20020a056512329500b004f8770f1b0bmr7078397lfe.33.1688933591071; Sun, 09 Jul 2023 13:13:11 -0700 (PDT) Received: from lothlorien.lan (dzdqv0yyyyyyyyyyybm5y-3.rev.dnainternet.fi. [2001:14ba:a0db:1f00::ab2]) by smtp.gmail.com with ESMTPSA id c12-20020ac2530c000000b004fb77d6cab3sm1420378lfh.261.2023.07.09.13.13.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 09 Jul 2023 13:13:10 -0700 (PDT) From: Dmitry Baryshkov To: Heikki Krogerus , Greg Kroah-Hartman , Bryan O'Donoghue , Guenter Roeck , Andy Gross , Bjorn Andersson , Konrad Dybcio Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v2 1/2] usb: typec: altmodes/displayport: add support for embedded DP cases Date: Sun, 9 Jul 2023 23:13:08 +0300 Message-Id: <20230709201309.274306-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230709201309.274306-1-dmitry.baryshkov@linaro.org> References: <20230709201309.274306-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In the embedded cases, the DisplayPort connector is handled by the TCPM itself. Fallback to the controller fwnode for HPD notifications to support such usecases without requiring additional DT properties. Signed-off-by: Dmitry Baryshkov --- drivers/usb/typec/altmodes/displayport.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/a= ltmodes/displayport.c index 4e5aa17ce4c8..699438c7755e 100644 --- a/drivers/usb/typec/altmodes/displayport.c +++ b/drivers/usb/typec/altmodes/displayport.c @@ -578,7 +578,10 @@ int dp_altmode_probe(struct typec_altmode *alt) alt->ops =3D &dp_altmode_ops; =20 fwnode =3D dev_fwnode(alt->dev.parent->parent); /* typec_port fwnode */ - dp->connector_fwnode =3D fwnode_find_reference(fwnode, "displayport", 0); + if (fwnode_property_present(fwnode, "displayport")) + dp->connector_fwnode =3D fwnode_find_reference(fwnode, "displayport", 0); + else + dp->connector_fwnode =3D fwnode_handle_get(fwnode); /* embedded DP */ if (IS_ERR(dp->connector_fwnode)) dp->connector_fwnode =3D NULL; =20 --=20 2.39.2