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Date:	Fri, 23 May 2014 02:02:26 +0800
From:	Zhang Rui <>
Cc:,,,,, Zhang Rui <>
Subject: [PATCH V7 04/11] ACPI: remove unsupported serial PNP ids from acpi pnp scan handler id lsit

The "serial" pnp driver supports some unknown PNP modems (PNPCXXX/PNPDXXX)
by matching magic strings in the pnp device name or the pnp device card name.

ACPI enumerated PNP device neither supports pnp card, nor supports those magic
strings in its device name, which means this mechamism never works for ACPI
enumerated PNPCXXX/PNPDXXX devices.
So it is safe to remove those two ids from the ACPI pnp scan handler id list.

Signed-off-by: Zhang Rui <>
 drivers/acpi/acpi_pnp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index d206616..a563a27 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -300,8 +300,6 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
 	{"LTS0001"},		/* LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in disguise) */
 	{"WCI0003"},		/* Rockwell's (PORALiNK) 33600 INT PNP */
 	{"WEC1022"},		/* Winbond CIR port, should not be probed. We should keep track of it to prevent the legacy serial driver from probing it */
-	{"PNPCXXX"},		/* Unknown PnP modems */
-	{"PNPDXXX"},		/* More unknown PnP modems */
 	/* scl200wdt */
 	{"NSC0800"},		/* National Semiconductor PC87307/PC97307 watchdog component */
 	/* mpu401 */

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