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From: Len Brown <lenb@kernel.org>
To: Rodrigo Luiz <rodrigo@gus-mg.org>
Cc: malattia@linux.it, linux-acpi@vger.kernel.org
Subject: [PATCH] ACPICA: delete check for AML access to port 0x81-83
Date: Tue, 07 Apr 2009 17:56:09 -0400 (EDT)	[thread overview]
Message-ID: <alpine.LFD.2.00.0904071754230.4799@localhost.localdomain> (raw)
In-Reply-To: <7a3045780904051727o3780c7d3hebb26028a1b4eba5@mail.gmail.com>

From: Len Brown <len.brown@intel.com>

Sony laptops apparently write 4-bytes (rather than 1 byte)
to debug port 0x80, which spews error messages:

Denied AML access to port 0x00000080/4 (DMA1 0x0081-0x0083) [20090320]

http://bugzilla.kernel.org/show_bug.cgi?id=13036

Signed-off-by: Len Brown <len.brown@intel.com>
---

Rodrigo,
Please verify that this makes the warnings go away.

thanks,
-Len

 drivers/acpi/acpica/hwvalid.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index bd3c937..7737afb 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -90,7 +90,6 @@ static const struct acpi_port_info acpi_protected_ports[] = {
 	{"PIT2", 0x0048, 0x004B, ACPI_OSI_WIN_XP},
 	{"RTC", 0x0070, 0x0071, ACPI_OSI_WIN_XP},
 	{"CMOS", 0x0074, 0x0076, ACPI_OSI_WIN_XP},
-	{"DMA1", 0x0081, 0x0083, ACPI_OSI_WIN_XP},
 	{"DMA1L", 0x0087, 0x0087, ACPI_OSI_WIN_XP},
 	{"DMA2", 0x0089, 0x008B, ACPI_OSI_WIN_XP},
 	{"DMA2L", 0x008F, 0x008F, ACPI_OSI_WIN_XP},
-- 
1.6.2.2.446.gfbdc


  parent reply	other threads:[~2009-04-07 21:56 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-06  0:27 sony-laptop: ACPI Exception when a Fn-Key is pressed Rodrigo Luiz
2009-04-06 11:01 ` Mattia Dongili
2009-04-06 13:13   ` Rodrigo Luiz
2009-04-07  2:13     ` yakui_zhao
2009-04-07  4:54       ` Len Brown
2009-04-07  5:00   ` Len Brown
2009-04-07  5:12   ` Len Brown
2009-04-07 19:46     ` Rodrigo Luiz
2009-04-07 21:27 ` Len Brown
2009-04-07 21:56 ` Len Brown [this message]
2009-04-08  1:20   ` [PATCH] ACPICA: delete check for AML access to port 0x81-83 Rodrigo Luiz
2009-04-08  1:46   ` Mattia Dongili
2009-04-09  6:23   ` Matthew Garrett
2009-04-09 14:56     ` Moore, Robert

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