Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753503Ab2JIGEG (ORCPT ); Tue, 9 Oct 2012 02:04:06 -0400 Received: from mail-qa0-f53.google.com ([209.85.216.53]:58217 "EHLO mail-qa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753321Ab2JIGDr (ORCPT ); Tue, 9 Oct 2012 02:03:47 -0400 From: Len Brown To: linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Feng Tang , Len Brown , stable@vger.kernel.org Subject: [PATCH 27/30] ACPI: EC: Add a quirk for CLEVO M720T/M730T laptop Date: Tue, 9 Oct 2012 01:54:17 -0400 Message-Id: <67bfa9b60bd689601554526d144b21d529f78a09.1349761836.git.len.brown@intel.com> X-Mailer: git-send-email 1.8.0.rc1 In-Reply-To: <1349762060-25334-1-git-send-email-lenb@kernel.org> References: <1349762060-25334-1-git-send-email-lenb@kernel.org> In-Reply-To: References: Reply-To: Len Brown Organization: Intel Open Source Technology Center Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1781 Lines: 60 From: Feng Tang By enlarging the GPE storm threshold back to 20, that laptop's EC works fine with interrupt mode instead of polling mode. https://bugzilla.kernel.org/show_bug.cgi?id=45151 Reported-and-Tested-by: Francesco Signed-off-by: Feng Tang Signed-off-by: Len Brown cc: stable@vger.kernel.org --- drivers/acpi/ec.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 615264c..a51df96 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -930,6 +930,17 @@ static int ec_flag_msi(const struct dmi_system_id *id) return 0; } +/* + * Clevo M720 notebook actually works ok with IRQ mode, if we lifted + * the GPE storm threshold back to 20 + */ +static int ec_enlarge_storm_threshold(const struct dmi_system_id *id) +{ + pr_debug("Setting the EC GPE storm threshold to 20\n"); + ec_storm_threshold = 20; + return 0; +} + static struct dmi_system_id __initdata ec_dmi_table[] = { { ec_skip_dsdt_scan, "Compal JFL92", { @@ -961,10 +972,13 @@ static struct dmi_system_id __initdata ec_dmi_table[] = { { ec_validate_ecdt, "ASUS hardware", { DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc.") }, NULL}, + { + ec_enlarge_storm_threshold, "CLEVO hardware", { + DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."), + DMI_MATCH(DMI_PRODUCT_NAME, "M720T/M730T"),}, NULL}, {}, }; - int __init acpi_ec_ecdt_probe(void) { acpi_status status; -- 1.8.0.rc1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/