Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967391Ab2ERUhn (ORCPT ); Fri, 18 May 2012 16:37:43 -0400 Received: from hqemgate03.nvidia.com ([216.228.121.140]:2320 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967322Ab2ERUhK (ORCPT ); Fri, 18 May 2012 16:37:10 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Fri, 18 May 2012 13:37:02 -0700 From: Laxman Dewangan To: , , , , CC: , Laxman Dewangan Subject: [PATCH 3/3] gpio: tps65910: dt: process gpio specific device node info Date: Sat, 19 May 2012 02:01:43 +0530 Message-ID: <1337373103-23933-4-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 1.7.1.1 In-Reply-To: <1337373103-23933-1-git-send-email-ldewangan@nvidia.com> References: <1337373103-23933-1-git-send-email-ldewangan@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2311 Lines: 76 Parse the gpio specific device node information locally. Signed-off-by: Laxman Dewangan --- drivers/gpio/gpio-tps65910.c | 36 ++++++++++++++++++++++++++++++++++++ 1 files changed, 36 insertions(+), 0 deletions(-) diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c index af6dc83..c1ad288 100644 --- a/drivers/gpio/gpio-tps65910.c +++ b/drivers/gpio/gpio-tps65910.c @@ -20,6 +20,7 @@ #include #include #include +#include struct tps65910_gpio { struct gpio_chip gpio_chip; @@ -81,6 +82,37 @@ static int tps65910_gpio_input(struct gpio_chip *gc, unsigned offset) GPIO_CFG_MASK); } +#ifdef CONFIG_OF +static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev, + struct tps65910 *tps65910, int chip_ngpio) +{ + struct tps65910_board *tps65910_board = tps65910->of_plat_data; + unsigned int prop_array[TPS6591X_MAX_NUM_GPIO]; + int ngpio = min(chip_ngpio, TPS6591X_MAX_NUM_GPIO); + int ret; + int idx; + + tps65910_board->gpio_base = -1; + ret = of_property_read_u32_array(tps65910->dev->of_node, + "ti,en-gpio-sleep", prop_array, ngpio); + if (ret < 0) { + dev_dbg(dev, "ti,en-gpio-sleep not specified\n"); + return tps65910_board; + } + + for (idx = 0; idx < ngpio; idx++) + tps65910_board->en_gpio_sleep[idx] = (prop_array[idx] != 0); + + return tps65910_board; +} +#else +static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev, + struct tps65910 *tps65910, int chip_ngpio) +{ + return NULL; +} +#endif + static int __devinit tps65910_gpio_probe(struct platform_device *pdev) { struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent); @@ -122,6 +154,10 @@ static int __devinit tps65910_gpio_probe(struct platform_device *pdev) else tps65910_gpio->gpio_chip.base = -1; + if (!pdata && tps65910->dev->of_node) + pdata = tps65910_parse_dt_for_gpio(&pdev->dev, tps65910, + tps65910_gpio->gpio_chip.ngpio); + if (!pdata) goto skip_init; -- 1.7.1.1 -- 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/