From nobody Wed Dec 17 23:56:15 2025 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C19411BF24 for ; Fri, 3 May 2024 00:39:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714696796; cv=none; b=FoKjx61PSxAnRpIbwXGcZSa0FyBnSID8qfwo8nOp/4XMdLZLA4Y+4g2pkM9N8tPrCJnQgn3PAjZpq3KIcHg/7f/sSjEkehxWtBAp0dXN5V9gDEnFD2u6inYR24MK5lk+ayIN0eh1o328k6lJdTqek3WFbDKuZ1Uj/EEsO5DZDf8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714696796; c=relaxed/simple; bh=qgu2ViOZOk6hT9QT2PkX/dUFnBm0XSHB9y0xx2sW4YM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=FsL8Nl9hDIC93q6QFNCgmllBQjdD3TtISVRz9JQ+xDHBdz70dx3HLHdk6Kvy19jDcoWdHluTUqO74Hv3tE21bgIFWdImNC2iXtQRV1gpZu5ZjcmdCtyLfahttUTpfz7aGQ136FRbB8NCAG2i/c7P8hsef/h71XqJtoimWX8XKfk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jthies.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=h1xL6M+D; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jthies.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="h1xL6M+D" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-61be530d024so79238927b3.2 for ; Thu, 02 May 2024 17:39:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1714696793; x=1715301593; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=GHcklqlVkDgPCWtLjA6mJ8uUEpbeCPdZPZls8J1AN9k=; b=h1xL6M+DA8QIWugKiHHdt/J2FOJubjBSjEFNpwHZEbnvkxgnH9rnOrRBjQB3kYnhQU /KcfkNEBsehVD3Poug2wyH7L222UAKxUzKMQYntR2ho4ceCs5WeQHDSlxiqt/9c07pK4 3tqh6299oDBm2dYAmE8rPdLcciUkAfO2J0EhjT0PSnGie6uLqhl0L9krye/8MtZOydQr 3HJiz52Mi1b4L1t8vWY3HY7TKsqqS5AbJ2ouFWakgmNgCurfpX7Jz7nbdy5Peznstbok cwrO5GMHFX3vxOT/NAfJ5TlfVKnEIsmI5BYm+cOIo/QOCkqJVQ0gG204c3Y8h23/iT7N 8fCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714696793; x=1715301593; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=GHcklqlVkDgPCWtLjA6mJ8uUEpbeCPdZPZls8J1AN9k=; b=C3YxSCWzQ4U+6RfrtpNGJ+Iv1WgFHuN7WZqSlcaT0z6ogj3SjR1sPtSPWSt8wJAW8k yFNVjoqlSYW2Jv2tGh7EMjNjq4gW0SyFK9PXR/34g/vDijA4hqce0w/Ge4tsEDHhOxy+ tHnxtZSqzH52W5ovbUWzeXUK+Yi8apyTeSIUGWzhoEKCZSJBqfUmbeXowFnD0FbaMOO3 mqMdD1OSzN7RQyl0uENkXwYJdocNQopjOiIU9L9Fun0XCW3K64NV6qoNXSsLToyEzASv VJ1I3F5qm0o4ChKSKtJJ2EHgoego69UatQvnxMGz9Pm73uNp8kS944BgFrTZYjf8t59V QmsA== X-Forwarded-Encrypted: i=1; AJvYcCUy7QrTwUAZvvWwNoASD66MNkEJGr17hHeS+zNUeFVccDYIxCaXXE5jzsnpBqUCeYHb/QIXquQ0u6j38dRRl+f5SdzDRQGKqzwbdweD X-Gm-Message-State: AOJu0Yw5Fd5hvm1+17g3JWZzthZzqtiYBEcOBrP/ngSSyplxbpWMSURy yqc40kisaT3VGzvEDeacEl0uq8IZdjGOlEVFk0V1aCWor+giap7arlLOs/sY+qd3Kvxwuekb/hq rKA== X-Google-Smtp-Source: AGHT+IGyhxQqfnpdZfpT1wcZoFyJw5400zJ79x/mYwXvqDLeSrFZkOdCg3BGriKoPCxDjgmRotLTtkzJ8gw= X-Received: from jthies.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:23db]) (user=jthies job=sendgmr) by 2002:a25:c591:0:b0:de6:1646:58b2 with SMTP id v139-20020a25c591000000b00de6164658b2mr205344ybe.13.1714696792849; Thu, 02 May 2024 17:39:52 -0700 (PDT) Date: Fri, 3 May 2024 00:39:20 +0000 In-Reply-To: <20240503003920.1482447-1-jthies@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240503003920.1482447-1-jthies@google.com> X-Mailer: git-send-email 2.45.0.rc1.225.g2a3ae87e7f-goog Message-ID: <20240503003920.1482447-5-jthies@google.com> Subject: [PATCH v3 4/4] usb: typec: ucsi: Always set number of alternate modes From: Jameson Thies To: heikki.krogerus@linux.intel.com, linux-usb@vger.kernel.org Cc: jthies@google.com, pmalani@chromium.org, bleung@google.com, abhishekpandit@chromium.org, andersson@kernel.org, dmitry.baryshkov@linaro.org, fabrice.gasnier@foss.st.com, gregkh@linuxfoundation.org, hdegoede@redhat.com, neil.armstrong@linaro.org, rajaram.regupathy@intel.com, saranya.gopal@intel.com, linux-kernel@vger.kernel.org, Benson Leung Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Providing the number of known alternate modes allows user space to determine when device registration has completed. Always register a number of known alternate modes for the partner and cable plug, even when the number of supported alternate modes is 0. Reviewed-by: Heikki Krogerus Reviewed-by: Benson Leung Signed-off-by: Jameson Thies --- Changes in V3: - None. Changes in V2: - None. drivers/usb/typec/ucsi/ucsi.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index bb6e57064513d..52a14bfe4107e 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -812,10 +812,11 @@ static int ucsi_check_altmodes(struct ucsi_connector = *con) /* Ignoring the errors in this case. */ if (con->partner_altmode[0]) { num_partner_am =3D ucsi_get_num_altmode(con->partner_altmode); - if (num_partner_am > 0) - typec_partner_set_num_altmodes(con->partner, num_partner_am); + typec_partner_set_num_altmodes(con->partner, num_partner_am); ucsi_altmode_update_active(con); return 0; + } else { + typec_partner_set_num_altmodes(con->partner, 0); } =20 return ret; @@ -1138,7 +1139,7 @@ static int ucsi_check_connection(struct ucsi_connecto= r *con) static int ucsi_check_cable(struct ucsi_connector *con) { u64 command; - int ret; + int ret, num_plug_am; =20 if (con->cable) return 0; @@ -1172,6 +1173,13 @@ static int ucsi_check_cable(struct ucsi_connector *c= on) return ret; } =20 + if (con->plug_altmode[0]) { + num_plug_am =3D ucsi_get_num_altmode(con->plug_altmode); + typec_plug_set_num_altmodes(con->plug, num_plug_am); + } else { + typec_plug_set_num_altmodes(con->plug, 0); + } + return 0; } =20 --=20 2.45.0.rc1.225.g2a3ae87e7f-goog