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[86.98.192.109]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43b51852a64sm552772f8f.14.2026.03.17.09.30.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Mar 2026 09:30:18 -0700 (PDT) From: Alexey Charkov Date: Tue, 17 Mar 2026 20:30:15 +0400 Subject: [PATCH v2] usb: typec: fusb302: Switch to threaded IRQ handler 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: <20260317-fusb302-irq-v2-1-dbabd5c5c961@flipper.net> X-B4-Tracking: v=1; b=H4sIAJaBuWkC/23Myw7CIBCF4VdpZu0YBixUV76H6cLLYCcxLUIlm oZ3F7t2+Z/kfAskjsIJDs0CkbMkmcYaetPAdTiPd0a51QattFWGCP0rXYzSKPGJhmxnds62nSO ojxDZy3vVTn3tQdI8xc+KZ/qt/51MSOjYkWqdslbvj/4hIXDcjjxDX0r5Atr+PNuoAAAA X-Change-ID: 20260311-fusb302-irq-316834765871 To: Heikki Krogerus , Greg Kroah-Hartman , Sebastian Reichel Cc: Hans de Goede , Sebastian Andrzej Siewior , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Alexey Charkov X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1591; i=alchark@flipper.net; h=from:subject:message-id; bh=Z2aWRPXkpx5ekMjctDdvr6UjzEasOAIPeaUcWrJN5NE=; b=owGbwMvMwCW2adGNfoHIK0sZT6slMWTubJxZzZxZ+fqA8fb1nmd8EkROvp32ZsXEW18/ObOYu X0S/hbxs2MiC4MYF4OlmCLL3G9LbKca8c3a5eHxFWYOKxPIEGmRBgYgYGHgy03MKzXSMdIz1TbU MzTUMdYxYuDiFICpFjNh+Gc+5cnEVScSDc5P/RHmEJDg9FyiVuZ0U83K4PrtDcus6mwZ/tm3aeb Z+fVEzTRl3rK+oexb8pxLiX96UsrkziUU/t4QxAAA X-Developer-Key: i=alchark@flipper.net; a=openpgp; fpr=9DF6A43D95320E9ABA4848F5B2A2D88F1059D4A5 FUSB302 fails to probe with -EINVAL if its interrupt line is connected via an I2C GPIO expander, such as TI TCA6416. Switch the interrupt handler to a threaded one, which also works behind such GPIO expanders. Cc: stable@vger.kernel.org Fixes: 309b6341d557 ("usb: typec: fusb302: Revert incorrect threaded irq fi= x") Signed-off-by: Alexey Charkov Reviewed-by: Hans de Goede Reviewed-by: Heikki Krogerus --- Changes in v2: - Re-added the IRQF_ONESHOT flag to the request_threaded_irq() call (thanks Hans de Goede and Sebastian Andrzej Siewior) - Link to v1: https://lore.kernel.org/r/20260311-fusb302-irq-v1-1-7e7105706= 629@flipper.net --- drivers/usb/typec/tcpm/fusb302.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb= 302.c index ce7069fb4be6..889c4c29c1b8 100644 --- a/drivers/usb/typec/tcpm/fusb302.c +++ b/drivers/usb/typec/tcpm/fusb302.c @@ -1764,8 +1764,9 @@ static int fusb302_probe(struct i2c_client *client) goto destroy_workqueue; } =20 - ret =3D request_irq(chip->gpio_int_n_irq, fusb302_irq_intn, - IRQF_TRIGGER_LOW, "fsc_interrupt_int_n", chip); + ret =3D request_threaded_irq(chip->gpio_int_n_irq, NULL, fusb302_irq_intn, + IRQF_ONESHOT | IRQF_TRIGGER_LOW, + "fsc_interrupt_int_n", chip); if (ret < 0) { dev_err(dev, "cannot request IRQ for GPIO Int_N, ret=3D%d", ret); goto tcpm_unregister_port; --- base-commit: 95c541ddfb0815a0ea8477af778bb13bb075079a change-id: 20260311-fusb302-irq-316834765871 Best regards, --=20 Alexey Charkov