From patchwork Thu Jan 4 16:47:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 855711 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zCDH85FdVz9sQm for ; Fri, 5 Jan 2018 03:47:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753423AbeADQrP (ORCPT ); Thu, 4 Jan 2018 11:47:15 -0500 Received: from mga11.intel.com ([192.55.52.93]:2120 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752463AbeADQrO (ORCPT ); Thu, 4 Jan 2018 11:47:14 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Jan 2018 08:47:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,314,1511856000"; d="scan'208";a="24318061" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 04 Jan 2018 08:47:11 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 90D8F1B4; Thu, 4 Jan 2018 18:47:10 +0200 (EET) From: Andy Shevchenko To: "Rafael J. Wysocki" , Erik Schmauss , linux-acpi@vger.kernel.org, Pierre-Louis Bossart , Liam Girdwood , Mark Brown , alsa-devel@alsa-project.org, Linus Walleij , linux-gpio@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v2 3/3] gpio: merrifield: Add support of ACPI enabled platforms Date: Thu, 4 Jan 2018 18:47:09 +0200 Message-Id: <20180104164709.64387-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180104164709.64387-1-andriy.shevchenko@linux.intel.com> References: <20180104164709.64387-1-andriy.shevchenko@linux.intel.com> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The driver needs the pin control device name for ACPI. We are looking through ACPI namespace and return first found device based on ACPI HID for Intel Merrifield FLIS. Cc: Mika Westerberg Signed-off-by: Andy Shevchenko --- drivers/gpio/gpio-merrifield.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-merrifield.c b/drivers/gpio/gpio-merrifield.c index dd67a31ac337..68320d57d5f0 100644 --- a/drivers/gpio/gpio-merrifield.c +++ b/drivers/gpio/gpio-merrifield.c @@ -9,6 +9,7 @@ * published by the Free Software Foundation. */ +#include #include #include #include @@ -380,9 +381,16 @@ static void mrfld_irq_init_hw(struct mrfld_gpio *priv) } } +static const char *mrfld_gpio_get_pinctrl_dev_name(const char *fallback) +{ + const char *dev_name = acpi_dev_get_dev_name("INTC1002", NULL, -1); + return dev_name ? dev_name : fallback; +} + static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id) { const struct mrfld_gpio_pinrange *range; + const char *pinctrl_dev_name; struct mrfld_gpio *priv; u32 gpio_base, irq_base; void __iomem *base; @@ -439,10 +447,11 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id return retval; } + pinctrl_dev_name = mrfld_gpio_get_pinctrl_dev_name("pinctrl-merrifield"); for (i = 0; i < ARRAY_SIZE(mrfld_gpio_ranges); i++) { range = &mrfld_gpio_ranges[i]; retval = gpiochip_add_pin_range(&priv->chip, - "pinctrl-merrifield", + pinctrl_dev_name, range->gpio_base, range->pin_base, range->npins);