From patchwork Tue Jul 2 03:31:08 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Libin Yang X-Patchwork-Id: 2810711 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EEDEA9F3EB for ; Tue, 2 Jul 2013 03:35:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E9CDB2012E for ; Tue, 2 Jul 2013 03:35:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D184320138 for ; Tue, 2 Jul 2013 03:35:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755446Ab3GBDfl (ORCPT ); Mon, 1 Jul 2013 23:35:41 -0400 Received: from na3sys009aog111.obsmtp.com ([74.125.149.205]:33015 "EHLO na3sys009aog111.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752701Ab3GBDfk (ORCPT ); Mon, 1 Jul 2013 23:35:40 -0400 Received: from sc-owa02.marvell.com ([199.233.58.137]) (using TLSv1) by na3sys009aob111.postini.com ([74.125.148.12]) with SMTP ID DSNKUdJKiajysvyEf7wa+x2sHrmTWGyb9oI4@postini.com; Mon, 01 Jul 2013 20:35:40 PDT Received: from maili.marvell.com (10.93.76.43) by sc-owa02.marvell.com (10.93.76.22) with Microsoft SMTP Server id 8.3.213.0; Mon, 1 Jul 2013 20:31:20 -0700 Received: from localhost (unknown [10.38.36.205]) by maili.marvell.com (Postfix) with ESMTP id 085F91CCDAE; Mon, 1 Jul 2013 20:31:20 -0700 (PDT) From: Libin Yang To: , CC: , , Libin Yang , Albert Wang Subject: [PATCH v2 7/7] marvell-ccic: switch to resource managed allocation and request Date: Tue, 2 Jul 2013 11:31:08 +0800 Message-ID: <1372735868-15880-8-git-send-email-lbyang@marvell.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1372735868-15880-1-git-send-email-lbyang@marvell.com> References: <1372735868-15880-1-git-send-email-lbyang@marvell.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch switchs to resource managed allocation and request in mmp-driver. It can remove free resource operations. Signed-off-by: Albert Wang Signed-off-by: Libin Yang Acked-by: Jonathan Corbet --- drivers/media/platform/marvell-ccic/mmp-driver.c | 68 ++++++++-------------- 1 file changed, 23 insertions(+), 45 deletions(-) diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c index 55fd47b..d862507 100644 --- a/drivers/media/platform/marvell-ccic/mmp-driver.c +++ b/drivers/media/platform/marvell-ccic/mmp-driver.c @@ -354,7 +354,7 @@ static int mmpcam_probe(struct platform_device *pdev) if (!pdata) return -ENODEV; - cam = kzalloc(sizeof(*cam), GFP_KERNEL); + cam = devm_kzalloc(&pdev->dev, sizeof(*cam), GFP_KERNEL); if (cam == NULL) return -ENOMEM; cam->pdev = pdev; @@ -385,15 +385,11 @@ static int mmpcam_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) { dev_err(&pdev->dev, "no iomem resource!\n"); - ret = -ENODEV; - goto out_free; - } - mcam->regs = ioremap(res->start, resource_size(res)); - if (mcam->regs == NULL) { - dev_err(&pdev->dev, "MMIO ioremap fail\n"); - ret = -ENODEV; - goto out_free; + return -ENODEV; } + mcam->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mcam->regs)) + return PTR_ERR(mcam->regs); /* * Power/clock memory is elsewhere; get it too. Perhaps this * should really be managed outside of this driver? @@ -401,15 +397,11 @@ static int mmpcam_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (res == NULL) { dev_err(&pdev->dev, "no power resource!\n"); - ret = -ENODEV; - goto out_unmap1; - } - cam->power_regs = ioremap(res->start, resource_size(res)); - if (cam->power_regs == NULL) { - dev_err(&pdev->dev, "power MMIO ioremap fail\n"); - ret = -ENODEV; - goto out_unmap1; + return -ENODEV; } + cam->power_regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(cam->power_regs)) + return PTR_ERR(cam->power_regs); mcam_init_clk(mcam, pdata); @@ -419,25 +411,28 @@ static int mmpcam_probe(struct platform_device *pdev) */ mcam->i2c_adapter = platform_get_drvdata(pdata->i2c_device); if (mcam->i2c_adapter == NULL) { - ret = -ENODEV; dev_err(&pdev->dev, "No i2c adapter\n"); - goto out_unmap2; + return -ENODEV; } /* * Sensor GPIO pins. */ - ret = gpio_request(pdata->sensor_power_gpio, "cam-power"); + ret = devm_gpio_request(&pdev->dev, pdata->sensor_power_gpio, + "cam-power"); + if (ret) { dev_err(&pdev->dev, "Can't get sensor power gpio %d", pdata->sensor_power_gpio); - goto out_unmap2; + return ret; } gpio_direction_output(pdata->sensor_power_gpio, 0); - ret = gpio_request(pdata->sensor_reset_gpio, "cam-reset"); + ret = devm_gpio_request(&pdev->dev, pdata->sensor_reset_gpio, + "cam-reset"); + if (ret) { dev_err(&pdev->dev, "Can't get sensor reset gpio %d", pdata->sensor_reset_gpio); - goto out_gpio; + return ret; } gpio_direction_output(pdata->sensor_reset_gpio, 0); /* @@ -445,10 +440,10 @@ static int mmpcam_probe(struct platform_device *pdev) */ ret = mmpcam_power_up(mcam); if (ret) - goto out_gpio2; + goto out_power_down; ret = mccic_register(mcam); if (ret) - goto out_gpio2; + goto out_power_down; /* * Finally, set up our IRQ now that the core is ready to * deal with it. @@ -459,8 +454,8 @@ static int mmpcam_probe(struct platform_device *pdev) goto out_unregister; } cam->irq = res->start; - ret = request_irq(cam->irq, mmpcam_irq, IRQF_SHARED, - "mmp-camera", mcam); + ret = devm_request_irq(&pdev->dev, cam->irq, mmpcam_irq, IRQF_SHARED, + "mmp-camera", mcam); if (ret == 0) { mmpcam_add_device(cam); return 0; @@ -468,17 +463,8 @@ static int mmpcam_probe(struct platform_device *pdev) out_unregister: mccic_shutdown(mcam); -out_gpio2: +out_power_down: mmpcam_power_down(mcam); - gpio_free(pdata->sensor_reset_gpio); -out_gpio: - gpio_free(pdata->sensor_power_gpio); -out_unmap2: - iounmap(cam->power_regs); -out_unmap1: - iounmap(mcam->regs); -out_free: - kfree(cam); return ret; } @@ -486,18 +472,10 @@ out_free: static int mmpcam_remove(struct mmp_camera *cam) { struct mcam_camera *mcam = &cam->mcam; - struct mmp_camera_platform_data *pdata; mmpcam_remove_device(cam); - free_irq(cam->irq, mcam); mccic_shutdown(mcam); mmpcam_power_down(mcam); - pdata = cam->pdev->dev.platform_data; - gpio_free(pdata->sensor_reset_gpio); - gpio_free(pdata->sensor_power_gpio); - iounmap(cam->power_regs); - iounmap(mcam->regs); - kfree(cam); return 0; }