linux-kernel - [PATCH v2 1/2] Input: i8042: Avoid probing if no keyboard and mouse are set in quirks

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Date:   Wed, 6 Dec 2023 15:21:39 -0600
From:   Mario Limonciello <mario.limonciello@....com>
To:     <dmitry.torokhov@...il.com>
CC:     <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <rrameshbabu@...dia.com>,
        Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v2 1/2] Input: i8042: Avoid probing if no keyboard and mouse are set in quirks

Some laptops have an i8042 controller in the SOC, nothing mentioned in
ACPI PNP and nothing connected to the controller. Add the ability to
skip probing in this case.

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 drivers/input/serio/i8042-acpipnpio.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index 9c39553d30fa..0fd88bbfaee1 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -1707,6 +1707,9 @@ static int __init i8042_platform_init(void)
 		"");
 #endif
 
+	if (i8042_nokbd && i8042_noaux)
+		return -ENODEV;
+
 	retval = i8042_pnp_init();
 	if (retval)
 		return retval;
-- 
2.34.1