From patchwork Mon Oct 9 13:09:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 731287 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DDBEAE95A9A for ; Mon, 9 Oct 2023 13:10:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376787AbjJINKE (ORCPT ); Mon, 9 Oct 2023 09:10:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376710AbjJINKD (ORCPT ); Mon, 9 Oct 2023 09:10:03 -0400 Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81C92B6; Mon, 9 Oct 2023 06:10:01 -0700 (PDT) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 399D9nCW055525; Mon, 9 Oct 2023 08:09:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1696856989; bh=bGpb3GLN/T4dyh3nBcjV+qVV/RdD272uzDzrTHNjjwE=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=dl/Ioopdtg9WMkVDWs+Cfy4PUT16w9RnRKTCWRdhfPIt/XRS6iie1BXDF1Q6NC6Fu 7eCYQ1DF9lPQZpfHoaREY93giMqR/8MjcHeFiB/qrQZKX/wPkXaibjITWwCsNOKEUf 5hCYyjmqgIQyUH+/Syt0mrqj+aDfyHRKN7mBWz88= Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 399D9nat014508 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 9 Oct 2023 08:09:49 -0500 Received: from DFLE109.ent.ti.com (10.64.6.30) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 9 Oct 2023 08:09:49 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 9 Oct 2023 08:09:49 -0500 Received: from localhost (ileaxei01-snat.itg.ti.com [10.180.69.5]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 399D9mho117965; Mon, 9 Oct 2023 08:09:48 -0500 From: Jai Luthra To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Tomi Valkeinen CC: , , , , Laurent Pinchart , Mauro Carvalho Chehab , Maxime Ripard , , Benoit Parrot , Vaishnav Achath , Vignesh Raghavendra , , , , , Martyn Welch , Julien Massot Subject: [PATCH v10 05/13] media: cadence: csi2rx: Add get_fmt and set_fmt pad ops Date: Mon, 9 Oct 2023 18:39:31 +0530 Message-ID: <20231009-upstream_csi-v10-5-330aaed24c5d@ti.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231009-upstream_csi-v10-0-330aaed24c5d@ti.com> References: <20231009-upstream_csi-v10-0-330aaed24c5d@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=5517; i=j-luthra@ti.com; h=from:subject:message-id; bh=5t1qq9VUbX4/94lsj2wyTmgoRSNIADX7Km2mBA5J5xg=; b=owEBbQKS/ZANAwAIAUPekfkkmnFFAcsmYgBlI/sp4pcyzfDa11JqnxFJADGerfjALIggwbqdU GYowoyIBVWJAjMEAAEIAB0WIQRN4NgY5dV16NRar8VD3pH5JJpxRQUCZSP7KQAKCRBD3pH5JJpx RbxbEACDhnX++uR9OkD5TCEHwglqAdls0JD6287seW81r1yg78Zi91aFAO3lUkhlMNE0XK52EL9 yvPF1dg0urNMKhfN9of+K+EGoPx1+5n85Nm4fNxSk1VPK1lHk3NQgYrlT3hf+hMVwHcOs/FgtQ0 dE5IUedCvxOpx6huEn5WTQNi5cd/qlyq+JYlOj3EXJmZuuL8dkTE9jl/lzSXkOnguBBU2SHYhKG AUd0SaGoD4IDz9y0eja6NFO1lH8VlYXBAvuZHi+FfggjRg8mgJcIJ8kjuNO6seXLbnE+WOY4Cd5 SEZLVqS2slJ9CznjN6eXEsTzLwLBaoSY/yJjM+BhQNyp2iDPRiIsXajdEtYgJdRlbG3grW8CLND GdGRpqTpcxzsiHJ61RxIWytuk+Q/585znCjyb60m8LqPCqXSSy+48sRLkdzofHELWiM6Jh202Gn +guJhHSDTl4tCEZpbJ3iZBFg+OUJS5VbusUMZj5eticHYTOywYAkR2fCxverRJveoUeh3xAOAge fegneLujgKSOAJ+gFeMjHKw1Jvhk4a4SUEaNSJb9qsUsPYjIwGlojf3TpDoowacjox4JrkhyJJm 24qYQGIyOImTt+jibY/e5YfuVoJCjzbB231t9Fot8M2iKGrJ9IBe+jUMnQRKVs9d0WrTpu/iKK+ LGU5zhxi85yEdQQ== X-Developer-Key: i=j-luthra@ti.com; a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Pratyush Yadav The format is needed to calculate the link speed for the external DPHY configuration. It is not right to query the format from the source subdev. Add get_fmt and set_fmt pad operations so that the format can be configured and correct bpp be selected. Initialize and use the v4l2 subdev active state to keep track of the active formats. Also propagate the new format from the sink pad to all the source pads. Signed-off-by: Pratyush Yadav Tested-by: Julien Massot Reviewed-by: Maxime Ripard Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen Co-developed-by: Jai Luthra Signed-off-by: Jai Luthra --- Changes in v10: - Remove redundant checks in set_fmt() as we ensure pad is SINK drivers/media/platform/cadence/cdns-csi2rx.c | 96 +++++++++++++++++++++++++++- 1 file changed, 95 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 399b2f800dc4..f9b41451f4a4 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -61,6 +61,11 @@ enum csi2rx_pads { CSI2RX_PAD_MAX, }; +struct csi2rx_fmt { + u32 code; + u8 bpp; +}; + struct csi2rx_priv { struct device *dev; unsigned int count; @@ -95,6 +100,32 @@ struct csi2rx_priv { int source_pad; }; +static const struct csi2rx_fmt formats[] = { + { .code = MEDIA_BUS_FMT_YUYV8_1X16, .bpp = 16, }, + { .code = MEDIA_BUS_FMT_UYVY8_1X16, .bpp = 16, }, + { .code = MEDIA_BUS_FMT_YVYU8_1X16, .bpp = 16, }, + { .code = MEDIA_BUS_FMT_VYUY8_1X16, .bpp = 16, }, + { .code = MEDIA_BUS_FMT_SBGGR8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SGBRG8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SGRBG8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SRGGB8_1X8, .bpp = 8, }, + { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .bpp = 10, }, + { .code = MEDIA_BUS_FMT_SGBRG10_1X10, .bpp = 10, }, + { .code = MEDIA_BUS_FMT_SGRBG10_1X10, .bpp = 10, }, + { .code = MEDIA_BUS_FMT_SRGGB10_1X10, .bpp = 10, }, +}; + +static const struct csi2rx_fmt *csi2rx_get_fmt_by_code(u32 code) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(formats); i++) + if (formats[i].code == code) + return &formats[i]; + + return NULL; +} + static inline struct csi2rx_priv *v4l2_subdev_to_csi2rx(struct v4l2_subdev *subdev) { @@ -303,12 +334,68 @@ static int csi2rx_s_stream(struct v4l2_subdev *subdev, int enable) return ret; } +static int csi2rx_set_fmt(struct v4l2_subdev *subdev, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *fmt; + unsigned int i; + + /* No transcoding, source and sink formats must match. */ + if (format->pad != CSI2RX_PAD_SINK) + return v4l2_subdev_get_fmt(subdev, state, format); + + if (!csi2rx_get_fmt_by_code(format->format.code)) + format->format.code = formats[0].code; + + format->format.field = V4L2_FIELD_NONE; + + /* Set sink format */ + fmt = v4l2_subdev_get_pad_format(subdev, state, format->pad); + *fmt = format->format; + + /* Propagate to source formats */ + for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++) { + fmt = v4l2_subdev_get_pad_format(subdev, state, i); + *fmt = format->format; + } + + return 0; +} + +static int csi2rx_init_cfg(struct v4l2_subdev *subdev, + struct v4l2_subdev_state *state) +{ + struct v4l2_subdev_format format = { + .pad = CSI2RX_PAD_SINK, + .format = { + .width = 640, + .height = 480, + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, + .ycbcr_enc = V4L2_YCBCR_ENC_601, + .quantization = V4L2_QUANTIZATION_LIM_RANGE, + .xfer_func = V4L2_XFER_FUNC_SRGB, + }, + }; + + return csi2rx_set_fmt(subdev, state, &format); +} + +static const struct v4l2_subdev_pad_ops csi2rx_pad_ops = { + .get_fmt = v4l2_subdev_get_fmt, + .set_fmt = csi2rx_set_fmt, + .init_cfg = csi2rx_init_cfg, +}; + static const struct v4l2_subdev_video_ops csi2rx_video_ops = { .s_stream = csi2rx_s_stream, }; static const struct v4l2_subdev_ops csi2rx_subdev_ops = { .video = &csi2rx_video_ops, + .pad = &csi2rx_pad_ops, }; static int csi2rx_async_bound(struct v4l2_async_notifier *notifier, @@ -532,9 +619,13 @@ static int csi2rx_probe(struct platform_device *pdev) if (ret) goto err_cleanup; + ret = v4l2_subdev_init_finalize(&csi2rx->subdev); + if (ret) + goto err_cleanup; + ret = v4l2_async_register_subdev(&csi2rx->subdev); if (ret < 0) - goto err_cleanup; + goto err_free_state; dev_info(&pdev->dev, "Probed CSI2RX with %u/%u lanes, %u streams, %s D-PHY\n", @@ -544,6 +635,8 @@ static int csi2rx_probe(struct platform_device *pdev) return 0; +err_free_state: + v4l2_subdev_cleanup(&csi2rx->subdev); err_cleanup: v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); @@ -560,6 +653,7 @@ static void csi2rx_remove(struct platform_device *pdev) v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); v4l2_async_unregister_subdev(&csi2rx->subdev); + v4l2_subdev_cleanup(&csi2rx->subdev); media_entity_cleanup(&csi2rx->subdev.entity); kfree(csi2rx); }