From patchwork Thu Apr 9 09:01:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Wu X-Patchwork-Id: 6185471 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 [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F3E809F2E9 for ; Thu, 9 Apr 2015 09:00:17 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 236A3203ED for ; Thu, 9 Apr 2015 09:00:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2458A2028D for ; Thu, 9 Apr 2015 09:00:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755019AbbDIJAM (ORCPT ); Thu, 9 Apr 2015 05:00:12 -0400 Received: from eusmtp01.atmel.com ([212.144.249.242]:14476 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753505AbbDIJAH (ORCPT ); Thu, 9 Apr 2015 05:00:07 -0400 Received: from apsmtp01.atmel.com (10.168.254.31) by eusmtp01.atmel.com (10.161.101.30) with Microsoft SMTP Server id 14.2.347.0; Thu, 9 Apr 2015 11:00:00 +0200 Received: from melon.corp.atmel.com (10.168.254.13) by apsmtp01.atmel.com (10.168.254.31) with Microsoft SMTP Server id 14.2.347.0; Thu, 9 Apr 2015 17:00:21 +0800 From: Josh Wu To: Guennadi Liakhovetski , Laurent Pinchart CC: Linux Media Mailing List , Nicolas Ferre , , Josh Wu Subject: [PATCH v2 3/3] media: atmel-isi: remove mck back compatiable code as it's not need Date: Thu, 9 Apr 2015 17:01:48 +0800 Message-ID: <1428570108-4961-4-git-send-email-josh.wu@atmel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1428570108-4961-1-git-send-email-josh.wu@atmel.com> References: <1428570108-4961-1-git-send-email-josh.wu@atmel.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, T_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 The master clock should handled by sensor itself. Signed-off-by: Josh Wu Acked-by: Laurent Pinchart --- Changes in v2: - totally remove clock_start()/clock_stop() as they are optional. drivers/media/platform/soc_camera/atmel-isi.c | 45 --------------------------- 1 file changed, 45 deletions(-) diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c index 2b05f89..7bba7d9 100644 --- a/drivers/media/platform/soc_camera/atmel-isi.c +++ b/drivers/media/platform/soc_camera/atmel-isi.c @@ -83,8 +83,6 @@ struct atmel_isi { struct completion complete; /* ISI peripherial clock */ struct clk *pclk; - /* ISI_MCK, feed to camera sensor to generate pixel clock */ - struct clk *mck; unsigned int irq; struct isi_platform_data pdata; @@ -727,31 +725,6 @@ static void isi_camera_remove_device(struct soc_camera_device *icd) icd->devnum); } -/* Called with .host_lock held */ -static int isi_camera_clock_start(struct soc_camera_host *ici) -{ - struct atmel_isi *isi = ici->priv; - int ret; - - if (!IS_ERR(isi->mck)) { - ret = clk_prepare_enable(isi->mck); - if (ret) { - return ret; - } - } - - return 0; -} - -/* Called with .host_lock held */ -static void isi_camera_clock_stop(struct soc_camera_host *ici) -{ - struct atmel_isi *isi = ici->priv; - - if (!IS_ERR(isi->mck)) - clk_disable_unprepare(isi->mck); -} - static unsigned int isi_camera_poll(struct file *file, poll_table *pt) { struct soc_camera_device *icd = file->private_data; @@ -865,8 +838,6 @@ static struct soc_camera_host_ops isi_soc_camera_host_ops = { .owner = THIS_MODULE, .add = isi_camera_add_device, .remove = isi_camera_remove_device, - .clock_start = isi_camera_clock_start, - .clock_stop = isi_camera_clock_stop, .set_fmt = isi_camera_set_fmt, .try_fmt = isi_camera_try_fmt, .get_formats = isi_camera_get_formats, @@ -904,7 +875,6 @@ static int atmel_isi_probe_dt(struct atmel_isi *isi, /* Default settings for ISI */ isi->pdata.full_mode = 1; - isi->pdata.mck_hz = ISI_DEFAULT_MCLK_FREQ; isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL; np = of_graph_get_next_endpoint(np, NULL); @@ -980,21 +950,6 @@ static int atmel_isi_probe(struct platform_device *pdev) INIT_LIST_HEAD(&isi->video_buffer_list); INIT_LIST_HEAD(&isi->dma_desc_head); - /* ISI_MCK is the sensor master clock. It should be handled by the - * sensor driver directly, as the ISI has no use for that clock. Make - * the clock optional here while platforms transition to the correct - * model. - */ - isi->mck = devm_clk_get(dev, "isi_mck"); - if (!IS_ERR(isi->mck)) { - /* Set ISI_MCK's frequency, it should be faster than pixel - * clock. - */ - ret = clk_set_rate(isi->mck, isi->pdata.mck_hz); - if (ret < 0) - return ret; - } - isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev, sizeof(struct fbd) * MAX_BUFFER_NUM, &isi->fb_descriptors_phys,