From patchwork Sat Sep 18 14:15:49 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: charu@ti.com X-Patchwork-Id: 189802 X-Patchwork-Delegate: khilman@deeprootsystems.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o8IEGTic014844 for ; Sat, 18 Sep 2010 14:16:30 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755536Ab0IROQW (ORCPT ); Sat, 18 Sep 2010 10:16:22 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:56366 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755461Ab0IROQR (ORCPT ); Sat, 18 Sep 2010 10:16:17 -0400 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id o8IEGCPc030508 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 18 Sep 2010 09:16:14 -0500 Received: from localhost.localdomain (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id o8IEG4Sc018293; Sat, 18 Sep 2010 19:46:10 +0530 (IST) From: "Varadarajan, Charulatha" To: tony@atomide.com, linux-omap@vger.kernel.org Cc: khilman@deeprootsystems.com, paul@pwsan.com, b-cousson@ti.com, rnayak@ti.com, p-basak2@ti.com, "Varadarajan, Charulatha" Subject: [PATCH v6 09/13] OMAP2PLUS: GPIO: use omap_device_build for device registration Date: Sat, 18 Sep 2010 19:45:49 +0530 Message-Id: <1284819353-8512-10-git-send-email-charu@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1284819353-8512-1-git-send-email-charu@ti.com> References: <1284819353-8512-1-git-send-email-charu@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Sat, 18 Sep 2010 14:16:30 +0000 (UTC) diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c new file mode 100644 index 0000000..e759311 --- /dev/null +++ b/arch/arm/mach-omap2/gpio.c @@ -0,0 +1,92 @@ +/* + * gpio.c - OMAP2PLUS-specific gpio code + * + * Copyright (C) 2010 Texas Instruments, Inc. + * + * Author: + * Charulatha V + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include + +#include +#include + +static struct omap_device_pm_latency omap_gpio_latency[] = { + [0] = { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + }, +}; + +static int omap2_init_gpio(struct omap_hwmod *oh, void *user) +{ + struct omap_device *od; + struct omap_gpio_platform_data *pdata; + char *name = "omap-gpio"; + struct omap_gpio_dev_attr *gpio_dev_data; + + if (!oh) { + pr_err("Could not look up omap gpio %d\n", + gpio_bank_count + 1); + return -EINVAL; + } + + pdata = kzalloc(sizeof(struct omap_gpio_platform_data), + GFP_KERNEL); + if (!pdata) { + pr_err("Memory allocation failed gpio%d\n", + gpio_bank_count + 1); + return -ENOMEM; + } + + gpio_dev_data = (struct omap_gpio_dev_attr *)oh->dev_attr; + + pdata->gpio_attr = gpio_dev_data; + pdata->virtual_irq_start = IH_GPIO_BASE + 32 * gpio_bank_count; + pdata->pwrdm = omap_hwmod_get_pwrdm(oh); + + switch (oh->class->rev) { + case 0: + case 1: + pdata->bank_type = METHOD_GPIO_24XX; + break; + case 2: + pdata->bank_type = METHOD_GPIO_44XX; + break; + default: + WARN(1, "Invalid gpio bank_type\n"); + break; + } + + od = omap_device_build(name, gpio_bank_count, oh, pdata, + sizeof(*pdata), omap_gpio_latency, + ARRAY_SIZE(omap_gpio_latency), + false); + WARN(IS_ERR(od), "Cant build omap_device for %s:%s.\n", + name, oh->name); + gpio_bank_count++; + + kfree(pdata); + return 0; +} + +/* + * gpio_init needs to be done before + * machine_init functions access gpio APIs. + * Hence gpio_init is a postcore_initcall. + */ +static int __init omap2_gpio_init(void) +{ + return omap_hwmod_for_each_by_class("gpio", omap2_init_gpio, + NULL); +} +postcore_initcall(omap2_gpio_init);