linux-kernel - [PATCH 023/104] ACPI / EC: Add HP Folio 13 to ec_dmi

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Message-Id: <1380535881-9239-24-git-send-email-luis.henriques@canonical.com>
Date:	Mon, 30 Sep 2013 11:10:00 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Lan Tianyu <tianyu.lan@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 023/104] ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan

3.5.7.22 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lan Tianyu <tianyu.lan@...el.com>

commit eff9a4b62b14cf0d9913e3caf1f26f8b7a6105c9 upstream.

HP Folio 13's BIOS defines CMOS RTC Operation Region and the EC's
_REG method will access that region.  To allow the CMOS RTC region
handler to be installed before the EC _REG method is first invoked,
add ec_skip_dsdt_scan() as HP Folio 13's callback to ec_dmi_table.

References: https://bugzilla.kernel.org/show_bug.cgi?id=54621
Reported-and-tested-by: Stefan Nagy <public@...fan-nagy.at>
Signed-off-by: Lan Tianyu <tianyu.lan@...el.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
[ luis: 3.5.y-prereq for:
  524f42f ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT ]
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/acpi/ec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index f9914e5..3251d4b 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -974,6 +974,10 @@ static struct dmi_system_id __initdata ec_dmi_table[] = {
 	ec_enlarge_storm_threshold, "CLEVO hardware", {
 	DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
 	DMI_MATCH(DMI_PRODUCT_NAME, "M720T/M730T"),}, NULL},
+	{
+	ec_skip_dsdt_scan, "HP Folio 13", {
+	DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+	DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13"),}, NULL},
 	{},
 };
 
-- 
1.8.3.2

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