From patchwork Fri Nov 6 19:22:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395880 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfR19Sxz9sRR for ; Sat, 7 Nov 2020 06:23:11 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727997AbgKFTXK (ORCPT ); Fri, 6 Nov 2020 14:23:10 -0500 Received: from mga11.intel.com ([192.55.52.93]:17139 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727356AbgKFTXK (ORCPT ); Fri, 6 Nov 2020 14:23:10 -0500 IronPort-SDR: noEMlcZP09yPtDhA2ibgDYuerJI+jickWhHWd3lLuxQNu8E+I+v7yC8RAYybRBhg/iXYzbu9yr YoqGFxwlfsyQ== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="166079984" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="166079984" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:09 -0800 IronPort-SDR: KJoEMz3wweMYUD+dOfyyJ0jzdwht6CfdRoTCWHbH8yagoZ4nVCij/YIATcvS/UgRPgTd+LHfm2 Y/G6tYYCnLqw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="307293401" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 06 Nov 2020 11:23:08 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 845D676; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko , Jamie McClymont Subject: [PATCH v4 1/9] gpiolib: acpi: Respect bias settings for GpioInt() resource Date: Fri, 6 Nov 2020 21:22:56 +0200 Message-Id: <20201106192304.49179-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org In some cases the GpioInt() resource is coming with bias settings which may affect system functioning. Respect bias settings for GpioInt() resource by calling acpi_gpio_update_gpiod_*flags() API in acpi_dev_gpio_irq_get(). Reported-by: Jamie McClymont Signed-off-by: Andy Shevchenko Acked-by: Linus Walleij Reviewed-by: Mika Westerberg --- drivers/gpio/gpiolib-acpi.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 834a12f3219e..3a39e8a93226 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -942,6 +942,7 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) if (info.gpioint && idx++ == index) { unsigned long lflags = GPIO_LOOKUP_FLAGS_DEFAULT; + enum gpiod_flags dflags = GPIOD_ASIS; char label[32]; int irq; @@ -952,8 +953,11 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) if (irq < 0) return irq; + acpi_gpio_update_gpiod_flags(&dflags, &info); + acpi_gpio_update_gpiod_lookup_flags(&lflags, &info); + snprintf(label, sizeof(label), "GpioInt() %d", index); - ret = gpiod_configure_flags(desc, label, lflags, info.flags); + ret = gpiod_configure_flags(desc, label, lflags, dflags); if (ret < 0) return ret; From patchwork Fri Nov 6 19:22:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395884 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfT3svSz9sSs for ; Sat, 7 Nov 2020 06:23:13 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726880AbgKFTXL (ORCPT ); Fri, 6 Nov 2020 14:23:11 -0500 Received: from mga02.intel.com ([134.134.136.20]:23575 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728071AbgKFTXL (ORCPT ); Fri, 6 Nov 2020 14:23:11 -0500 IronPort-SDR: 1ajauBr71evBeFueOmSpMQn4c4dqNSOz6RMapQ0WYN2M2uPVIS1ULg81wiF24A4oAL6Ae2IKoD LrS5Jhp41odg== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="156590951" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="156590951" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:11 -0800 IronPort-SDR: 4SK3FYPEiLrvedv2C6vRKG0BSiaKK42yQoprSkDAuaFaal4wv2wz3wJdkS5I29NMGcxCI/mOUZ F7mQvbdATfcw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="397641334" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 06 Nov 2020 11:23:09 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 8F7B1252; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 2/9] gpiolib: acpi: Use named item for enum gpiod_flags variable Date: Fri, 6 Nov 2020 21:22:57 +0200 Message-Id: <20201106192304.49179-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Use named item instead of plain integer for enum gpiod_flags to make it clear that even 0 has its own meaning. Signed-off-by: Andy Shevchenko Acked-by: Linus Walleij Reviewed-by: Mika Westerberg --- drivers/gpio/gpiolib-acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 3a39e8a93226..c127b410a7a2 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1136,7 +1136,7 @@ acpi_gpiochip_parse_own_gpio(struct acpi_gpio_chip *achip, int ret; *lflags = GPIO_LOOKUP_FLAGS_DEFAULT; - *dflags = 0; + *dflags = GPIOD_ASIS; *name = NULL; ret = fwnode_property_read_u32_array(fwnode, "gpios", gpios, From patchwork Fri Nov 6 19:22:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395881 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfS33Q9z9sSs for ; Sat, 7 Nov 2020 06:23:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728070AbgKFTXK (ORCPT ); Fri, 6 Nov 2020 14:23:10 -0500 Received: from mga11.intel.com ([192.55.52.93]:17139 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727859AbgKFTXK (ORCPT ); Fri, 6 Nov 2020 14:23:10 -0500 IronPort-SDR: 5oE4xJl2OGEZes2XqYJFq1+GfQZr+r4XLbqMdpMScW+fsGRPzIDLRH4GbLoDIxRnkNsSmG86oL T037k9Ej4UFA== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="166079985" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="166079985" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:10 -0800 IronPort-SDR: HXhdQ0y0TYBekCgVPPVtN7ffmvNBZd3UBz3fS0NaS1uSoUoyypUmKGfJGiZBBUHKMficoBDeDl UwvA4gusnUXw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="307293402" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 06 Nov 2020 11:23:08 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 9B7B82A0; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko , Coiby Xu , Hans de Goede Subject: [PATCH v4 3/9] gpiolib: acpi: Take into account debounce settings Date: Fri, 6 Nov 2020 21:22:58 +0200 Message-Id: <20201106192304.49179-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org We didn't take into account the debounce settings supplied by ACPI. This change is targeting the mentioned gap. Reported-by: Coiby Xu Cc: Hans de Goede Signed-off-by: Andy Shevchenko Acked-by: Linus Walleij --- drivers/gpio/gpiolib-acpi.c | 18 ++++++++++++++++++ drivers/gpio/gpiolib-acpi.h | 2 ++ 2 files changed, 20 insertions(+) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index c127b410a7a2..b4a0decfeac2 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -299,6 +299,10 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, return AE_OK; } + ret = gpiod_set_debounce(desc, agpio->debounce_timeout); + if (ret) + goto fail_free_desc; + ret = gpiochip_lock_as_irq(chip, pin); if (ret) { dev_err(chip->parent, @@ -664,6 +668,7 @@ static int acpi_populate_gpio_lookup(struct acpi_resource *ares, void *data) lookup->desc = acpi_get_gpiod(agpio->resource_source.string_ptr, agpio->pin_table[pin_index]); lookup->info.pin_config = agpio->pin_config; + lookup->info.debounce = agpio->debounce_timeout; lookup->info.gpioint = gpioint; /* @@ -961,6 +966,10 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) if (ret < 0) return ret; + ret = gpiod_set_debounce(desc, info.debounce); + if (ret) + return ret; + irq_flags = acpi_dev_get_irq_type(info.triggering, info.polarity); @@ -1048,6 +1057,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, if (!found) { enum gpiod_flags flags = acpi_gpio_to_gpiod_flags(agpio); const char *label = "ACPI:OpRegion"; + int ret; desc = gpiochip_request_own_desc(chip, pin, label, GPIO_ACTIVE_HIGH, @@ -1058,6 +1068,14 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, goto out; } + ret = gpiod_set_debounce(desc, agpio->debounce_timeout); + if (ret) { + status = AE_ERROR; + gpiochip_free_own_desc(desc); + mutex_unlock(&achip->conn_lock); + goto out; + } + conn = kzalloc(sizeof(*conn), GFP_KERNEL); if (!conn) { status = AE_NO_MEMORY; diff --git a/drivers/gpio/gpiolib-acpi.h b/drivers/gpio/gpiolib-acpi.h index 1c6d65cf0629..e2edb632b2cc 100644 --- a/drivers/gpio/gpiolib-acpi.h +++ b/drivers/gpio/gpiolib-acpi.h @@ -18,6 +18,7 @@ struct acpi_device; * @pin_config: pin bias as provided by ACPI * @polarity: interrupt polarity as provided by ACPI * @triggering: triggering type as provided by ACPI + * @debounce: debounce timeout as provided by ACPI * @quirks: Linux specific quirks as provided by struct acpi_gpio_mapping */ struct acpi_gpio_info { @@ -27,6 +28,7 @@ struct acpi_gpio_info { int pin_config; int polarity; int triggering; + unsigned int debounce; unsigned int quirks; }; From patchwork Fri Nov 6 19:22:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395883 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfT1FDNz9sRR for ; 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06 Nov 2020 11:23:08 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id A2775213; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 4/9] gpiolib: acpi: Move acpi_gpio_to_gpiod_flags() upper in the code Date: Fri, 6 Nov 2020 21:22:59 +0200 Message-Id: <20201106192304.49179-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Move acpi_gpio_to_gpiod_flags() upper in the code to allow further refactoring. Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-acpi.c | 66 ++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 33 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index b4a0decfeac2..42c0605e3910 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -205,6 +205,39 @@ static void acpi_gpiochip_request_irqs(struct acpi_gpio_chip *acpi_gpio) acpi_gpiochip_request_irq(acpi_gpio, event); } +static enum gpiod_flags +acpi_gpio_to_gpiod_flags(const struct acpi_resource_gpio *agpio) +{ + switch (agpio->io_restriction) { + case ACPI_IO_RESTRICT_INPUT: + return GPIOD_IN; + case ACPI_IO_RESTRICT_OUTPUT: + /* + * ACPI GPIO resources don't contain an initial value for the + * GPIO. Therefore we deduce that value from the pull field + * instead. If the pin is pulled up we assume default to be + * high, if it is pulled down we assume default to be low, + * otherwise we leave pin untouched. + */ + switch (agpio->pin_config) { + case ACPI_PIN_CONFIG_PULLUP: + return GPIOD_OUT_HIGH; + case ACPI_PIN_CONFIG_PULLDOWN: + return GPIOD_OUT_LOW; + default: + break; + } + default: + break; + } + + /* + * Assume that the BIOS has configured the direction and pull + * accordingly. + */ + return GPIOD_ASIS; +} + static bool acpi_gpio_in_ignore_list(const char *controller_in, int pin_in) { const char *controller, *pin_str; @@ -530,39 +563,6 @@ static bool acpi_get_driver_gpio_data(struct acpi_device *adev, return false; } -static enum gpiod_flags -acpi_gpio_to_gpiod_flags(const struct acpi_resource_gpio *agpio) -{ - switch (agpio->io_restriction) { - case ACPI_IO_RESTRICT_INPUT: - return GPIOD_IN; - case ACPI_IO_RESTRICT_OUTPUT: - /* - * ACPI GPIO resources don't contain an initial value for the - * GPIO. Therefore we deduce that value from the pull field - * instead. If the pin is pulled up we assume default to be - * high, if it is pulled down we assume default to be low, - * otherwise we leave pin untouched. - */ - switch (agpio->pin_config) { - case ACPI_PIN_CONFIG_PULLUP: - return GPIOD_OUT_HIGH; - case ACPI_PIN_CONFIG_PULLDOWN: - return GPIOD_OUT_LOW; - default: - break; - } - default: - break; - } - - /* - * Assume that the BIOS has configured the direction and pull - * accordingly. - */ - return GPIOD_ASIS; -} - static int __acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, enum gpiod_flags update) { From patchwork Fri Nov 6 19:23:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395889 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfd2L4Dz9sTL for ; Sat, 7 Nov 2020 06:23:21 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728193AbgKFTXT (ORCPT ); Fri, 6 Nov 2020 14:23:19 -0500 Received: from mga03.intel.com ([134.134.136.65]:12143 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728077AbgKFTXP (ORCPT ); Fri, 6 Nov 2020 14:23:15 -0500 IronPort-SDR: mXahs608Q8ahDTR5B826sXfR8FiwftJ2TSMI+Jn6AqddhJo4Ry/aNiHZWBLsTPwTazOL5i13kv rqmPu2VEYlUQ== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="169700693" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="169700693" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:12 -0800 IronPort-SDR: 6Xq2WjM99Cv+lZ9lHGtzKD5K+gW1hgmnjGWEL+FHov/pYKi+1pEvZdjHv0LLsLtDeBz6XIcW5t b8iNMnofLrjw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="427401026" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 06 Nov 2020 11:23:10 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id B36CE44A; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 5/9] gpiolib: acpi: Make acpi_gpio_to_gpiod_flags() usable for GpioInt() Date: Fri, 6 Nov 2020 21:23:00 +0200 Message-Id: <20201106192304.49179-6-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org GpioInt() implies input configuration of the pin. Add this to the acpi_gpio_to_gpiod_flags() and make usable for GpioInt(). Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-acpi.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 42c0605e3910..20bc6921457f 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -208,6 +208,10 @@ static void acpi_gpiochip_request_irqs(struct acpi_gpio_chip *acpi_gpio) static enum gpiod_flags acpi_gpio_to_gpiod_flags(const struct acpi_resource_gpio *agpio) { + /* GpioInt() implies input configuration */ + if (agpio->connection_type == ACPI_RESOURCE_GPIO_TYPE_INT) + return GPIOD_IN; + switch (agpio->io_restriction) { case ACPI_IO_RESTRICT_INPUT: return GPIOD_IN; @@ -669,6 +673,7 @@ static int acpi_populate_gpio_lookup(struct acpi_resource *ares, void *data) agpio->pin_table[pin_index]); lookup->info.pin_config = agpio->pin_config; lookup->info.debounce = agpio->debounce_timeout; + lookup->info.flags = acpi_gpio_to_gpiod_flags(agpio); lookup->info.gpioint = gpioint; /* @@ -679,11 +684,9 @@ static int acpi_populate_gpio_lookup(struct acpi_resource *ares, void *data) * - ACPI_ACTIVE_HIGH == GPIO_ACTIVE_HIGH */ if (lookup->info.gpioint) { - lookup->info.flags = GPIOD_IN; lookup->info.polarity = agpio->polarity; lookup->info.triggering = agpio->triggering; } else { - lookup->info.flags = acpi_gpio_to_gpiod_flags(agpio); lookup->info.polarity = lookup->active_low; } } From patchwork Fri Nov 6 19:23:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395890 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfd5n7Wz9sRR for ; Sat, 7 Nov 2020 06:23:21 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728171AbgKFTXN (ORCPT ); Fri, 6 Nov 2020 14:23:13 -0500 Received: from mga11.intel.com ([192.55.52.93]:17139 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728071AbgKFTXM (ORCPT ); Fri, 6 Nov 2020 14:23:12 -0500 IronPort-SDR: NpeDLx5Zf+Q66Y39JKa1Htn8Fndfv95v1t7h0PgkuEX4m0K8VfPplNYFsY40udb1KjGRhZeedJ npgADEa3zq+A== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="166079995" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="166079995" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:12 -0800 IronPort-SDR: al5BEd98v0ljiMG8TyFZ3M0hAeq5y6obJ1KFi14jWbUSHDTjBtUIKoempW5Ep0ejnSKG7RRWag IPSRaxLRHsbA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="307293407" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 06 Nov 2020 11:23:10 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id BEF524B0; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 6/9] gpiolib: acpi: Extract acpi_request_own_gpiod() helper Date: Fri, 6 Nov 2020 21:23:01 +0200 Message-Id: <20201106192304.49179-7-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org It appears that we are using similar code excerpts for ACPI OpRegion and event handling. Deduplicate those excerpts by extracting a new acpi_request_own_gpiod() helper. Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-acpi.c | 44 +++++++++++++++++++------------------ 1 file changed, 23 insertions(+), 21 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 20bc6921457f..65fa38d467db 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -242,6 +242,27 @@ acpi_gpio_to_gpiod_flags(const struct acpi_resource_gpio *agpio) return GPIOD_ASIS; } +static struct gpio_desc *acpi_request_own_gpiod(struct gpio_chip *chip, + struct acpi_resource_gpio *agpio, + unsigned int index, + const char *label) +{ + enum gpiod_flags flags = acpi_gpio_to_gpiod_flags(agpio); + unsigned int pin = agpio->pin_table[index]; + struct gpio_desc *desc; + int ret; + + desc = gpiochip_request_own_desc(chip, pin, label, GPIO_ACTIVE_HIGH, flags); + if (IS_ERR(desc)) + return desc; + + ret = gpiod_set_debounce(desc, agpio->debounce_timeout); + if (ret) + gpiochip_free_own_desc(desc); + + return ret ? ERR_PTR(ret) : desc; +} + static bool acpi_gpio_in_ignore_list(const char *controller_in, int pin_in) { const char *controller, *pin_str; @@ -327,8 +348,7 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, if (!handler) return AE_OK; - desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event", - GPIO_ACTIVE_HIGH, GPIOD_IN); + desc = acpi_request_own_gpiod(chip, agpio, 0, "ACPI:Event"); if (IS_ERR(desc)) { dev_err(chip->parent, "Failed to request GPIO for pin 0x%04X, err %ld\n", @@ -336,10 +356,6 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, return AE_OK; } - ret = gpiod_set_debounce(desc, agpio->debounce_timeout); - if (ret) - goto fail_free_desc; - ret = gpiochip_lock_as_irq(chip, pin); if (ret) { dev_err(chip->parent, @@ -1058,27 +1074,13 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, } if (!found) { - enum gpiod_flags flags = acpi_gpio_to_gpiod_flags(agpio); - const char *label = "ACPI:OpRegion"; - int ret; - - desc = gpiochip_request_own_desc(chip, pin, label, - GPIO_ACTIVE_HIGH, - flags); + desc = acpi_request_own_gpiod(chip, agpio, i, "ACPI:OpRegion"); if (IS_ERR(desc)) { status = AE_ERROR; mutex_unlock(&achip->conn_lock); goto out; } - ret = gpiod_set_debounce(desc, agpio->debounce_timeout); - if (ret) { - status = AE_ERROR; - gpiochip_free_own_desc(desc); - mutex_unlock(&achip->conn_lock); - goto out; - } - conn = kzalloc(sizeof(*conn), GFP_KERNEL); if (!conn) { status = AE_NO_MEMORY; From patchwork Fri Nov 6 19:23:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395886 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfY2ZzLz9sTD for ; Sat, 7 Nov 2020 06:23:17 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728196AbgKFTXQ (ORCPT ); Fri, 6 Nov 2020 14:23:16 -0500 Received: from mga17.intel.com ([192.55.52.151]:29384 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728112AbgKFTXN (ORCPT ); Fri, 6 Nov 2020 14:23:13 -0500 IronPort-SDR: j6sF+MNnWlPt1hjn6jSRjRcvlw7t2i6nLObkAcFH/7fkfxuxN+PhGFnG0TBeqGET/UcvKB/4jw 1by3dizuhdEQ== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="149441529" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="149441529" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:12 -0800 IronPort-SDR: GNWs8XQVUcfmsllywNeIlwMwIJOrIqjMdih42UtcN50SA54dP0EeGRISS7oWyz9AjaCkJBn7Br oXqrJ7LsH5Qw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="364789017" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 06 Nov 2020 11:23:11 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id CA7BC4C7; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 7/9] gpiolib: acpi: Convert pin_index to be u16 Date: Fri, 6 Nov 2020 21:23:02 +0200 Message-Id: <20201106192304.49179-8-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org As defined by ACPI the pin index is 16-bit unsigned integer. Define the variable, which holds it, accordingly. Signed-off-by: Andy Shevchenko Acked-by: Linus Walleij --- drivers/gpio/gpiolib-acpi.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 65fa38d467db..bcb76b4e82aa 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -657,7 +657,7 @@ int acpi_gpio_update_gpiod_lookup_flags(unsigned long *lookupflags, struct acpi_gpio_lookup { struct acpi_gpio_info info; int index; - int pin_index; + u16 pin_index; bool active_low; struct gpio_desc *desc; int n; @@ -673,7 +673,7 @@ static int acpi_populate_gpio_lookup(struct acpi_resource *ares, void *data) if (!lookup->desc) { const struct acpi_resource_gpio *agpio = &ares->data.gpio; bool gpioint = agpio->connection_type == ACPI_RESOURCE_GPIO_TYPE_INT; - int pin_index; + u16 pin_index; if (lookup->info.quirks & ACPI_GPIO_QUIRK_ONLY_GPIOIO && gpioint) lookup->index++; @@ -818,7 +818,7 @@ static struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev, if (ret) return ERR_PTR(ret); - dev_dbg(&adev->dev, "GPIO: _DSD returned %s %d %d %u\n", + dev_dbg(&adev->dev, "GPIO: _DSD returned %s %d %u %u\n", dev_name(&lookup.info.adev->dev), lookup.index, lookup.pin_index, lookup.active_low); } else { @@ -1014,7 +1014,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, struct gpio_chip *chip = achip->chip; struct acpi_resource_gpio *agpio; struct acpi_resource *ares; - int pin_index = (int)address; + u16 pin_index = address; acpi_status status; int length; int i; @@ -1037,7 +1037,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, return AE_BAD_PARAMETER; } - length = min(agpio->pin_table_length, (u16)(pin_index + bits)); + length = min_t(u16, agpio->pin_table_length, pin_index + bits); for (i = pin_index; i < length; ++i) { int pin = agpio->pin_table[i]; struct acpi_gpio_connection *conn; From patchwork Fri Nov 6 19:23:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395885 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfT6mQZz9sRR for ; Sat, 7 Nov 2020 06:23:13 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728091AbgKFTXM (ORCPT ); Fri, 6 Nov 2020 14:23:12 -0500 Received: from mga11.intel.com ([192.55.52.93]:17142 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728075AbgKFTXM (ORCPT ); Fri, 6 Nov 2020 14:23:12 -0500 IronPort-SDR: 6iWnOKOFDFhipoKmH5V3D02IHHSFjo192lpresWzV8f4COkxKcxkJosvuD4dLYpgi86pwAu/5m coKsbifR2zFA== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="166079998" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="166079998" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:12 -0800 IronPort-SDR: nWyxqDOvAInUd3p5PLqEf7S8LiTFcKg75mzSLeVoo73aVQCDAluoXqJ1lKOjbeCYANa6lzwzZn dlqYdSkOchrA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="364272494" Received: from black.fi.intel.com ([10.237.72.28]) by FMSMGA003.fm.intel.com with ESMTP; 06 Nov 2020 11:23:10 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id D55C456E; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 8/9] gpiolib: acpi: Use BIT() macro to increase readability Date: Fri, 6 Nov 2020 21:23:03 +0200 Message-Id: <20201106192304.49179-9-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org We may use BIT() macro to increase readability in acpi_gpio_adr_space_handler(). Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-acpi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index bcb76b4e82aa..64a898c8719e 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1097,8 +1097,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, mutex_unlock(&achip->conn_lock); if (function == ACPI_WRITE) - gpiod_set_raw_value_cansleep(desc, - !!((1 << i) & *value)); + gpiod_set_raw_value_cansleep(desc, !!(*value & BIT(i))); else *value |= (u64)gpiod_get_raw_value_cansleep(desc) << i; } From patchwork Fri Nov 6 19:23:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1395887 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CSVfc642qz9sRR for ; Sat, 7 Nov 2020 06:23:20 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728071AbgKFTXN (ORCPT ); Fri, 6 Nov 2020 14:23:13 -0500 Received: from mga14.intel.com ([192.55.52.115]:17627 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727356AbgKFTXM (ORCPT ); Fri, 6 Nov 2020 14:23:12 -0500 IronPort-SDR: sexo2MoU06wnHCROotsFss9a5cGqiaSh3NykUYf7xuM9EcPCKu8KCUlW9wxfVJq/PuSDLYDvTm GQxazFiMreWQ== X-IronPort-AV: E=McAfee;i="6000,8403,9797"; a="168807656" X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="168807656" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2020 11:23:12 -0800 IronPort-SDR: 1TswDZZRxrYlwgoS+xAvc1arr68b4AVY8ujznSLcELngqFytrAaW1joBQP/MtlGvctxIPJV6js 85oZJFioD0kA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,457,1596524400"; d="scan'208";a="321694112" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga003.jf.intel.com with ESMTP; 06 Nov 2020 11:23:11 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id E01F0580; Fri, 6 Nov 2020 21:23:07 +0200 (EET) From: Andy Shevchenko To: Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v4 9/9] gpiolib: acpi: Make Intel GPIO tree official for GPIO ACPI work Date: Fri, 6 Nov 2020 21:23:04 +0200 Message-Id: <20201106192304.49179-10-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> References: <20201106192304.49179-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Make Intel GPIO tree official for GPIO ACPI work. Signed-off-by: Andy Shevchenko --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index e73636b75f29..53236b2ea0af 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7483,6 +7483,7 @@ M: Andy Shevchenko L: linux-gpio@vger.kernel.org L: linux-acpi@vger.kernel.org S: Maintained +T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git F: Documentation/firmware-guide/acpi/gpio-properties.rst F: drivers/gpio/gpiolib-acpi.c F: drivers/gpio/gpiolib-acpi.h