Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757746Ab2JSDGz (ORCPT ); Thu, 18 Oct 2012 23:06:55 -0400 Received: from mail.kernel.org ([198.145.19.201]:51922 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932695Ab2JSCs3 (ORCPT ); Thu, 18 Oct 2012 22:48:29 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Feng Tang , Len Brown Subject: [ 12/76] ACPI: EC: Add a quirk for CLEVO M720T/M730T laptop Date: Thu, 18 Oct 2012 19:46:36 -0700 Message-Id: <20121019024352.066645286@linuxfoundation.org> X-Mailer: git-send-email 1.8.0.rc0.18.gf84667d In-Reply-To: <20121019024350.087156547@linuxfoundation.org> References: <20121019024350.087156547@linuxfoundation.org> User-Agent: quilt/0.60-2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1851 Lines: 64 3.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Feng Tang commit 67bfa9b60bd689601554526d144b21d529f78a09 upstream. 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 Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/ec.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -930,6 +930,17 @@ static int ec_flag_msi(const struct dmi_ 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 e { 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; -- 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/