From patchwork Wed Aug 20 13:43:11 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacek Anaszewski X-Patchwork-Id: 4751481 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0EE75C0338 for ; Wed, 20 Aug 2014 13:44:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EAA7E2014A for ; Wed, 20 Aug 2014 13:44:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA8C82018A for ; Wed, 20 Aug 2014 13:44:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752688AbaHTNnf (ORCPT ); Wed, 20 Aug 2014 09:43:35 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:25550 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752674AbaHTNnd (ORCPT ); Wed, 20 Aug 2014 09:43:33 -0400 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NAL009A6Y4JNG20@mailout4.samsung.com>; Wed, 20 Aug 2014 22:43:31 +0900 (KST) X-AuditID: cbfee61a-f79e46d00000134f-82-53f4a6034a87 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 08.87.04943.306A4F35; Wed, 20 Aug 2014 22:43:31 +0900 (KST) Received: from AMDC2362.DIGITAL.local ([106.120.53.23]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NAL00FQGY404D20@mmp1.samsung.com>; Wed, 20 Aug 2014 22:43:31 +0900 (KST) From: Jacek Anaszewski To: linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: kyungmin.park@samsung.com, b.zolnierkie@samsung.com, Jacek Anaszewski , Sylwester Nawrocki Subject: [PATCH/RFC v5 3/3] exynos4-is: Add support for v4l2-flash subdevs Date: Wed, 20 Aug 2014 15:43:11 +0200 Message-id: <1408542191-335-4-git-send-email-j.anaszewski@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1408542191-335-1-git-send-email-j.anaszewski@samsung.com> References: <1408542191-335-1-git-send-email-j.anaszewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkluLIzCtJLcpLzFFi42I5/e+xgC7zsi/BBvOuaVhsnLGe1WL+kXOs Fr1XnzNanG16w25xedccNoutb9YxWvRs2MpqcfhNO6sDh0ffllWMHp83yQUwRXHZpKTmZJal FunbJXBlrP+kUHBEteLe9luMDYxL5LsYOTkkBEwkbjQ0sEPYYhIX7q1n62Lk4hASWMQoMe3W MSinnUli6ZMnjCBVbAKGEj9fvGYCsUUEyiV63j8DK2IWmMoo0b/mGhtIQljAS+LI/PnMIDaL gKrEvYuNYCt4Bdwkvh7/DmRzAK1TkJgzyQYkzCngLrH93HywEiGgkn0T25gmMPIuYGRYxSia WpBcUJyUnmuoV5yYW1yal66XnJ+7iREcQM+kdjCubLA4xCjAwajEw9uw4EuwEGtiWXFl7iFG CQ5mJRHe9k6gEG9KYmVValF+fFFpTmrxIUZpDhYlcd4DrdaBQgLpiSWp2ampBalFMFkmDk6p BkaH9DR7L5bzzFUfZnkKLsz/L7uQrZCVRWLagg8RCYzr3T0Vwzeqvapa+zEmw+J1trXfsUnp C5wv33sgcLQ7evku+YSiAKkrLG8fc0z7vDf6xQUlnkkv5OdOrNrI8ch1r5+v5KT/Jw9M1A33 sN/x8ytbg4S9+2WOMAPd5z+mM1tdNVt7zM1KLU+JpTgj0VCLuag4EQD1WhKdHAIAAA== Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.6 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 adds suppport for external v4l2-flash devices. The support includes parsing camera-flash DT property and asynchronous subdevice registration. Signed-off-by: Jacek Anaszewski Acked-by: Kyungmin Park Cc: Sylwester Nawrocki --- drivers/media/platform/exynos4-is/media-dev.c | 37 +++++++++++++++++++++++-- drivers/media/platform/exynos4-is/media-dev.h | 13 ++++++++- 2 files changed, 47 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index 344718d..ecb929c 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -451,6 +451,26 @@ rpm_put: return ret; } +static void fimc_md_register_flash_entities(struct fimc_md *fmd) +{ + struct device_node *parent = fmd->pdev->dev.of_node; + struct device_node *np; + int i = 0; + + do { + np = of_parse_phandle(parent, "flashes", i); + if (np) { + pr_info("found flash\n"); + fmd->flash[fmd->num_flashes].asd.match_type = + V4L2_ASYNC_MATCH_OF; + fmd->flash[fmd->num_flashes].asd.match.of.node = np; + fmd->num_flashes++; + fmd->async_subdevs[fmd->num_sensors + i] = + &fmd->flash[i].asd; + } + } while (np && (++i < FIMC_MAX_FLASHES)); +} + static int __of_get_csis_id(struct device_node *np) { u32 reg = 0; @@ -1273,6 +1293,15 @@ static int subdev_notifier_bound(struct v4l2_async_notifier *notifier, struct fimc_sensor_info *si = NULL; int i; + /* Register flash subdev if detected any */ + for (i = 0; i < ARRAY_SIZE(fmd->flash); i++) { + if (fmd->flash[i].asd.match.of.node == subdev->dev->of_node) { + fmd->flash[i].subdev = subdev; + fmd->num_flashes++; + return 0; + } + } + /* Find platform data for this sensor subdev */ for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++) if (fmd->sensor[i].asd.match.of.node == subdev->dev->of_node) @@ -1383,6 +1412,8 @@ static int fimc_md_probe(struct platform_device *pdev) goto err_m_ent; } + fimc_md_register_flash_entities(fmd); + mutex_unlock(&fmd->media_dev.graph_mutex); ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); @@ -1399,12 +1430,14 @@ static int fimc_md_probe(struct platform_device *pdev) goto err_attr; } - if (fmd->num_sensors > 0) { + if (fmd->num_sensors > 0 || fmd->num_flashes > 0) { fmd->subdev_notifier.subdevs = fmd->async_subdevs; - fmd->subdev_notifier.num_subdevs = fmd->num_sensors; + fmd->subdev_notifier.num_subdevs = fmd->num_sensors + + fmd->num_flashes; fmd->subdev_notifier.bound = subdev_notifier_bound; fmd->subdev_notifier.complete = subdev_notifier_complete; fmd->num_sensors = 0; + fmd->num_flashes = 0; ret = v4l2_async_notifier_register(&fmd->v4l2_dev, &fmd->subdev_notifier); diff --git a/drivers/media/platform/exynos4-is/media-dev.h b/drivers/media/platform/exynos4-is/media-dev.h index 0321454..feff9c8 100644 --- a/drivers/media/platform/exynos4-is/media-dev.h +++ b/drivers/media/platform/exynos4-is/media-dev.h @@ -34,6 +34,8 @@ #define FIMC_MAX_SENSORS 4 #define FIMC_MAX_CAMCLKS 2 +#define FIMC_MAX_FLASHES 2 +#define FIMC_MAX_ASYNC_SUBDEVS (FIMC_MAX_SENSORS + FIMC_MAX_FLASHES) #define DEFAULT_SENSOR_CLK_FREQ 24000000U /* LCD/ISP Writeback clocks (PIXELASYNCMx) */ @@ -93,6 +95,11 @@ struct fimc_sensor_info { struct fimc_dev *host; }; +struct fimc_flash_info { + struct v4l2_subdev *subdev; + struct v4l2_async_subdev asd; +}; + struct cam_clk { struct clk_hw hw; struct fimc_md *fmd; @@ -104,6 +111,8 @@ struct cam_clk { * @csis: MIPI CSIS subdevs data * @sensor: array of registered sensor subdevs * @num_sensors: actual number of registered sensors + * @flash: array of registered flash subdevs + * @num_flashes: actual number of registered flashes * @camclk: external sensor clock information * @fimc: array of registered fimc devices * @fimc_is: fimc-is data structure @@ -123,6 +132,8 @@ struct fimc_md { struct fimc_csis_info csis[CSIS_MAX_ENTITIES]; struct fimc_sensor_info sensor[FIMC_MAX_SENSORS]; int num_sensors; + struct fimc_flash_info flash[FIMC_MAX_FLASHES]; + int num_flashes; struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS]; struct clk *wbclk[FIMC_MAX_WBCLKS]; struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS]; @@ -149,7 +160,7 @@ struct fimc_md { } clk_provider; struct v4l2_async_notifier subdev_notifier; - struct v4l2_async_subdev *async_subdevs[FIMC_MAX_SENSORS]; + struct v4l2_async_subdev *async_subdevs[FIMC_MAX_ASYNC_SUBDEVS]; bool user_subdev_api; spinlock_t slock;