From patchwork Tue Aug 21 09:43:53 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Afzal Mohammed X-Patchwork-Id: 1353491 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 305FB3FC81 for ; Tue, 21 Aug 2012 09:44:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755910Ab2HUJoD (ORCPT ); Tue, 21 Aug 2012 05:44:03 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:44485 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755876Ab2HUJoA (ORCPT ); Tue, 21 Aug 2012 05:44:00 -0400 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id q7L9huQr021953; Tue, 21 Aug 2012 04:43:56 -0500 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7L9htfr017433; Tue, 21 Aug 2012 15:13:55 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Tue, 21 Aug 2012 15:13:54 +0530 Received: from udx0156546.apr.dhcp.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7L9hsQa028242; Tue, 21 Aug 2012 15:13:54 +0530 From: Afzal Mohammed To: , , , CC: , Afzal Mohammed Subject: [PATCH v3 07/10] mtd: onenand: omap2: obtain memory from resource Date: Tue, 21 Aug 2012 15:13:53 +0530 Message-ID: <317fa1837ee78277770cf25bdd7a6c0c8c73aab1.1344609341.git.afzal@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org gpmc initialization for onenand done by platform code now provides onenand address space as memory resource. Hence remove usage of gpmc_cs_request in onenand driver and obtain memory details from resource structure. Signed-off-by: Afzal Mohammed Acked-by: Artem Bityutskiy --- drivers/mtd/onenand/omap2.c | 29 ++++++++++++++++------------- 1 files changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 398a827..3ff893d 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -48,13 +48,13 @@ #define DRIVER_NAME "omap2-onenand" -#define ONENAND_IO_SIZE SZ_128K #define ONENAND_BUFRAM_SIZE (1024 * 5) struct omap2_onenand { struct platform_device *pdev; int gpmc_cs; unsigned long phys_base; + unsigned int mem_size; int gpio_irq; struct mtd_info mtd; struct onenand_chip onenand; @@ -626,6 +626,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) struct omap2_onenand *c; struct onenand_chip *this; int r; + struct resource *res; pdata = pdev->dev.platform_data; if (pdata == NULL) { @@ -647,20 +648,24 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) c->gpio_irq = 0; } - r = gpmc_cs_request(c->gpmc_cs, ONENAND_IO_SIZE, &c->phys_base); - if (r < 0) { - dev_err(&pdev->dev, "Cannot request GPMC CS\n"); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + r = -EINVAL; + dev_err(&pdev->dev, "error getting memory resource\n"); goto err_kfree; } - if (request_mem_region(c->phys_base, ONENAND_IO_SIZE, + c->phys_base = res->start; + c->mem_size = resource_size(res); + + if (request_mem_region(c->phys_base, c->mem_size, pdev->dev.driver->name) == NULL) { - dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, " - "size: 0x%x\n", c->phys_base, ONENAND_IO_SIZE); + dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, size: 0x%x\n", + c->phys_base, c->mem_size); r = -EBUSY; - goto err_free_cs; + goto err_kfree; } - c->onenand.base = ioremap(c->phys_base, ONENAND_IO_SIZE); + c->onenand.base = ioremap(c->phys_base, c->mem_size); if (c->onenand.base == NULL) { r = -ENOMEM; goto err_release_mem_region; @@ -776,9 +781,7 @@ err_release_gpio: err_iounmap: iounmap(c->onenand.base); err_release_mem_region: - release_mem_region(c->phys_base, ONENAND_IO_SIZE); -err_free_cs: - gpmc_cs_free(c->gpmc_cs); + release_mem_region(c->phys_base, c->mem_size); err_kfree: kfree(c); @@ -800,7 +803,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev) gpio_free(c->gpio_irq); } iounmap(c->onenand.base); - release_mem_region(c->phys_base, ONENAND_IO_SIZE); + release_mem_region(c->phys_base, c->mem_size); gpmc_cs_free(c->gpmc_cs); kfree(c);