From nobody Mon Jun 15 09:44:19 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 595343C0623; Thu, 9 Apr 2026 11:54:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775735650; cv=none; b=W+7YIFn1uOSaXjcG3vbcwgnjdbtUuvC/5gPa0wnM70SqnpVhqzcnx7WUNaxxnLeV8Uu3VRqGT/dhxY6Je+g9WeX2qsXg64Y0hE3TCJuLm8jtMJITbkRGfQfduHBm07TJ4AjVq0nTxnfTr/WytgGkGoEUKG29apqukwf9lHwbso4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775735650; c=relaxed/simple; bh=VfMT/iT0cjbkHNKbjq5ah6QbcWGuyVG0hJsRXPkMoTk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=WrI3yaRu+yRuUuOLq8hfS9kLzMN8PPrNQZW+dBUvXJjkYDNc5G6awIKqU7Q5iKIc3p2kZfReItyZqCEqwSemyhjmmHnCAqbVAcYl2djv/jrEYenkcW+R5t+F7T23MCJtT4IXKXEblu+lCuuZxauuUElAToUFNyfGflmBrupQzeI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OpAnBy4i; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OpAnBy4i" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C1560C4CEF7; Thu, 9 Apr 2026 11:54:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775735650; bh=VfMT/iT0cjbkHNKbjq5ah6QbcWGuyVG0hJsRXPkMoTk=; h=From:Date:Subject:To:Cc:From; b=OpAnBy4iVaVmeasnKu2ItvLp7EZodRN2ruyHTIkcoD9Gg98cGEcCpqCZY39px0XUx cPQLpYuVRAD7g8GUQDOsw4kKcvonPxQBFoZQlzkLPoSrUDjLZ5nAtzGfxwHxN/T0dW 7lrb0JKe17v+FIM/HwiPhKJCRqQzf47AJBcLc8e7aSd7o1jmNN2hMUY0pzAaJIU6+m G4ZS+TAFYernkOCwcMu5BA4+lE8FHmw2srZXpwav26PvCDSDi4XFsZuriIOg3hRWsW O0ju+cURAzS82pwihbtmsyveX3/pbVqprtIALbS5dMcyEwM+JMPNHNnHBqZNElU0Va X5UN/poUtP+XQ== From: Konrad Dybcio Date: Thu, 09 Apr 2026 13:54:01 +0200 Subject: [PATCH RFT] usb: typec: mux: Mark mux/switch devices as 'PM not required' Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260409-topic-usb_mux_nopm-v1-1-e8ff107c58b0@oss.qualcomm.com> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/x3MQQqAIBBA0avErBMmKcOuEhFlU80iFa0IwrsnL d/i/xciBaYIXfFCoJsjO5tRlQWYfbIbCV6yQaJUWKMWp/NsxBXn8bie0Tp/CKRG1q2uFBoFOfS BVn7+aT+k9AFQ9bQ1ZAAAAA== X-Change-ID: 20260409-topic-usb_mux_nopm-0e52479160c6 To: Heikki Krogerus , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1775735648; l=1344; i=konrad.dybcio@oss.qualcomm.com; s=20230215; h=from:subject:message-id; bh=psHmfFIIjh8ETmDzP30TpS3Fm39KFDkwAfIGlScflnc=; b=Juvsqn1YV1ZvPM//XGwOkqg+JQgmsGXowEd8BnGf1xtDoSsXqWkbDb85R6GWK7t3IJOoiCLND jKReJ5H9bllDwvNFMz5HC3ln3gaNYf7u8A2ft9YmybhbzlJjpRAE9bP X-Developer-Key: i=konrad.dybcio@oss.qualcomm.com; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= From: Konrad Dybcio These are spawned as children of the device that normally represents the chip/hw block providing Type-C functionality. They don't have PM callbacks, so it makes no sense for them to be taken into account there. Signed-off-by: Konrad Dybcio --- I saw no regressions, but such changes are always a little scary.. Sending as RFT --- drivers/usb/typec/mux.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index db5e4a4c0a99..080252f202ec 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -199,6 +199,8 @@ typec_switch_register(struct device *parent, return ERR_PTR(ret); } =20 + device_set_pm_not_required(&sw_dev->dev); + ret =3D device_add(&sw_dev->dev); if (ret) { dev_err(parent, "failed to register switch (%d)\n", ret); @@ -454,6 +456,8 @@ typec_mux_register(struct device *parent, const struct = typec_mux_desc *desc) return ERR_PTR(ret); } =20 + device_set_pm_not_required(&mux_dev->dev); + ret =3D device_add(&mux_dev->dev); if (ret) { dev_err(parent, "failed to register mux (%d)\n", ret); --- base-commit: db7efce4ae23ad5e42f5f55428f529ff62b86fab change-id: 20260409-topic-usb_mux_nopm-0e52479160c6 Best regards, --=20 Konrad Dybcio