From patchwork Tue Dec 8 00:11:37 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Murali Karicheri X-Patchwork-Id: 65599 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nB80Bmc1015193 for ; Tue, 8 Dec 2009 00:11:48 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964883AbZLHALk (ORCPT ); Mon, 7 Dec 2009 19:11:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S935584AbZLHALj (ORCPT ); Mon, 7 Dec 2009 19:11:39 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:33723 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935568AbZLHALi (ORCPT ); Mon, 7 Dec 2009 19:11:38 -0500 Received: from dlep36.itg.ti.com ([157.170.170.91]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id nB80Bi2N029731 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 7 Dec 2009 18:11:45 -0600 Received: from legion.dal.design.ti.com (localhost [127.0.0.1]) by dlep36.itg.ti.com (8.13.8/8.13.8) with ESMTP id nB80BgN7009613; Mon, 7 Dec 2009 18:11:42 -0600 (CST) Received: from gt516km11.gt.design.ti.com (gt516km11.gt.design.ti.com [158.218.100.179]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id nB80BfZ05414; Mon, 7 Dec 2009 18:11:41 -0600 (CST) Received: from gt516km11.gt.design.ti.com (localhost.localdomain [127.0.0.1]) by gt516km11.gt.design.ti.com (8.13.1/8.13.1) with ESMTP id nB80BfVv001256; Mon, 7 Dec 2009 19:11:41 -0500 Received: (from a0868495@localhost) by gt516km11.gt.design.ti.com (8.13.1/8.13.1/Submit) id nB80BerT001253; Mon, 7 Dec 2009 19:11:40 -0500 From: m-karicheri2@ti.com To: linux-media@vger.kernel.org, hverkuil@xs4all.nl, khilman@deeprootsystems.com Cc: davinci-linux-open-source@linux.davincidsp.com, hvaibhav@ti.com, Muralidharan Karicheri Subject: [PATCH v1 - 1/4] V4L: vpfe_capture - remove clock and ccdc resource handling Date: Mon, 7 Dec 2009 19:11:37 -0500 Message-Id: <1260231100-1226-1-git-send-email-m-karicheri2@ti.com> X-Mailer: git-send-email 1.6.0.4 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c index 12a1b3d..091750e 100644 --- a/drivers/media/video/davinci/vpfe_capture.c +++ b/drivers/media/video/davinci/vpfe_capture.c @@ -108,9 +108,6 @@ struct ccdc_config { int vpfe_probed; /* name of ccdc device */ char name[32]; - /* for storing mem maps for CCDC */ - int ccdc_addr_size; - void *__iomem ccdc_addr; }; /* data structures */ @@ -230,7 +227,6 @@ int vpfe_register_ccdc_device(struct ccdc_hw_device *dev) BUG_ON(!dev->hw_ops.set_image_window); BUG_ON(!dev->hw_ops.get_image_window); BUG_ON(!dev->hw_ops.get_line_length); - BUG_ON(!dev->hw_ops.setfbaddr); BUG_ON(!dev->hw_ops.getfid); mutex_lock(&ccdc_lock); @@ -241,25 +237,23 @@ int vpfe_register_ccdc_device(struct ccdc_hw_device *dev) * walk through it during vpfe probe */ printk(KERN_ERR "vpfe capture not initialized\n"); - ret = -1; + ret = -EFAULT; goto unlock; } if (strcmp(dev->name, ccdc_cfg->name)) { /* ignore this ccdc */ - ret = -1; + ret = -EINVAL; goto unlock; } if (ccdc_dev) { printk(KERN_ERR "ccdc already registered\n"); - ret = -1; + ret = -EINVAL; goto unlock; } ccdc_dev = dev; - dev->hw_ops.set_ccdc_base(ccdc_cfg->ccdc_addr, - ccdc_cfg->ccdc_addr_size); unlock: mutex_unlock(&ccdc_lock); return ret; @@ -1787,61 +1781,6 @@ static struct vpfe_device *vpfe_initialize(void) return vpfe_dev; } -static void vpfe_disable_clock(struct vpfe_device *vpfe_dev) -{ - struct vpfe_config *vpfe_cfg = vpfe_dev->cfg; - - clk_disable(vpfe_cfg->vpssclk); - clk_put(vpfe_cfg->vpssclk); - clk_disable(vpfe_cfg->slaveclk); - clk_put(vpfe_cfg->slaveclk); - v4l2_info(vpfe_dev->pdev->driver, - "vpfe vpss master & slave clocks disabled\n"); -} - -static int vpfe_enable_clock(struct vpfe_device *vpfe_dev) -{ - struct vpfe_config *vpfe_cfg = vpfe_dev->cfg; - int ret = -ENOENT; - - vpfe_cfg->vpssclk = clk_get(vpfe_dev->pdev, "vpss_master"); - if (NULL == vpfe_cfg->vpssclk) { - v4l2_err(vpfe_dev->pdev->driver, "No clock defined for" - "vpss_master\n"); - return ret; - } - - if (clk_enable(vpfe_cfg->vpssclk)) { - v4l2_err(vpfe_dev->pdev->driver, - "vpfe vpss master clock not enabled\n"); - goto out; - } - v4l2_info(vpfe_dev->pdev->driver, - "vpfe vpss master clock enabled\n"); - - vpfe_cfg->slaveclk = clk_get(vpfe_dev->pdev, "vpss_slave"); - if (NULL == vpfe_cfg->slaveclk) { - v4l2_err(vpfe_dev->pdev->driver, - "No clock defined for vpss slave\n"); - goto out; - } - - if (clk_enable(vpfe_cfg->slaveclk)) { - v4l2_err(vpfe_dev->pdev->driver, - "vpfe vpss slave clock not enabled\n"); - goto out; - } - v4l2_info(vpfe_dev->pdev->driver, "vpfe vpss slave clock enabled\n"); - return 0; -out: - if (vpfe_cfg->vpssclk) - clk_put(vpfe_cfg->vpssclk); - if (vpfe_cfg->slaveclk) - clk_put(vpfe_cfg->slaveclk); - - return -1; -} - /* * vpfe_probe : This function creates device entries by register * itself to the V4L2 driver and initializes fields of each @@ -1871,7 +1810,7 @@ static __init int vpfe_probe(struct platform_device *pdev) if (NULL == pdev->dev.platform_data) { v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); - ret = -ENOENT; + ret = -ENODEV; goto probe_free_dev_mem; } @@ -1885,18 +1824,13 @@ static __init int vpfe_probe(struct platform_device *pdev) goto probe_free_dev_mem; } - /* enable vpss clocks */ - ret = vpfe_enable_clock(vpfe_dev); - if (ret) - goto probe_free_dev_mem; - mutex_lock(&ccdc_lock); /* Allocate memory for ccdc configuration */ ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL); if (NULL == ccdc_cfg) { v4l2_err(pdev->dev.driver, "Memory allocation failed for ccdc_cfg\n"); - goto probe_disable_clock; + goto probe_free_dev_mem; } strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); @@ -1905,61 +1839,34 @@ static __init int vpfe_probe(struct platform_device *pdev) if (!res1) { v4l2_err(pdev->dev.driver, "Unable to get interrupt for VINT0\n"); - ret = -ENOENT; - goto probe_disable_clock; + ret = -ENODEV; + goto probe_free_ccdc_cfg_mem; } vpfe_dev->ccdc_irq0 = res1->start; /* Get VINT1 irq resource */ - res1 = platform_get_resource(pdev, - IORESOURCE_IRQ, 1); + res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); if (!res1) { v4l2_err(pdev->dev.driver, "Unable to get interrupt for VINT1\n"); - ret = -ENOENT; - goto probe_disable_clock; + ret = -ENODEV; + goto probe_free_ccdc_cfg_mem; } vpfe_dev->ccdc_irq1 = res1->start; - /* Get address base of CCDC */ - res1 = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res1) { - v4l2_err(pdev->dev.driver, - "Unable to get register address map\n"); - ret = -ENOENT; - goto probe_disable_clock; - } - - ccdc_cfg->ccdc_addr_size = res1->end - res1->start + 1; - if (!request_mem_region(res1->start, ccdc_cfg->ccdc_addr_size, - pdev->dev.driver->name)) { - v4l2_err(pdev->dev.driver, - "Failed request_mem_region for ccdc base\n"); - ret = -ENXIO; - goto probe_disable_clock; - } - ccdc_cfg->ccdc_addr = ioremap_nocache(res1->start, - ccdc_cfg->ccdc_addr_size); - if (!ccdc_cfg->ccdc_addr) { - v4l2_err(pdev->dev.driver, "Unable to ioremap ccdc addr\n"); - ret = -ENXIO; - goto probe_out_release_mem1; - } - ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED, "vpfe_capture0", vpfe_dev); if (0 != ret) { v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); - goto probe_out_unmap1; + goto probe_free_ccdc_cfg_mem; } /* Allocate memory for video device */ vfd = video_device_alloc(); if (NULL == vfd) { ret = -ENOMEM; - v4l2_err(pdev->dev.driver, - "Unable to alloc video device\n"); + v4l2_err(pdev->dev.driver, "Unable to alloc video device\n"); goto probe_out_release_irq; } @@ -2075,12 +1982,7 @@ probe_out_video_release: video_device_release(vpfe_dev->video_dev); probe_out_release_irq: free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); -probe_out_unmap1: - iounmap(ccdc_cfg->ccdc_addr); -probe_out_release_mem1: - release_mem_region(res1->start, res1->end - res1->start + 1); -probe_disable_clock: - vpfe_disable_clock(vpfe_dev); +probe_free_ccdc_cfg_mem: mutex_unlock(&ccdc_lock); kfree(ccdc_cfg); probe_free_dev_mem: @@ -2094,7 +1996,6 @@ probe_free_dev_mem: static int vpfe_remove(struct platform_device *pdev) { struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); - struct resource *res; v4l2_info(pdev->dev.driver, "vpfe_remove\n"); @@ -2102,12 +2003,6 @@ static int vpfe_remove(struct platform_device *pdev) kfree(vpfe_dev->sd); v4l2_device_unregister(&vpfe_dev->v4l2_dev); video_unregister_device(vpfe_dev->video_dev); - mutex_lock(&ccdc_lock); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, res->end - res->start + 1); - iounmap(ccdc_cfg->ccdc_addr); - mutex_unlock(&ccdc_lock); - vpfe_disable_clock(vpfe_dev); kfree(vpfe_dev); kfree(ccdc_cfg); return 0;