From patchwork Fri Mar 11 14:35:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 12778146 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 3D2F2C433EF for ; Fri, 11 Mar 2022 14:37:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349598AbiCKOiW (ORCPT ); Fri, 11 Mar 2022 09:38:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349602AbiCKOiI (ORCPT ); Fri, 11 Mar 2022 09:38:08 -0500 Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B34081C9471; Fri, 11 Mar 2022 06:36:53 -0800 (PST) Received: (Authenticated sender: paul.kocialkowski@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id A32B8240012; Fri, 11 Mar 2022 14:36:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647009412; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6TiKBCmGO43Q7XNrRJgMew9Bpoke82Sjtw0Mx+U8ARE=; b=ajdoY6RtrbdRLxYku3Qp2G8nkCwho9uAjplE9lqWZmKBd9Y0NjIZbIiRuTImt5lQdAkjmb 88Bg6XuQcUUZSqZtUhs33jzMLCDS+NwV0jitRtP+bG0kJ86DjFXI4gWIgN2Dlr6JuA9cO4 3SS5n1lXvVSl81573fea/eLqSiTa+ppS0QjNGIHGneLREZQcfnbO/FpXzXdpmtdhplfVH+ /wobVv2gTalJOIxWBN7kc4g2X89OgxQ9teRYVSFnyEn5/zG3A3HlDALQKV0cmdOKxZZrlF D/AnhzOxviTBgOdDKKI9DQ/9p8HRtKXO8bUFsZW72tDqOzNYSg/kmOzD4Yt5YA== From: Paul Kocialkowski To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Cc: Yong Deng , Paul Kocialkowski , Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Laurent Pinchart , Maxime Ripard , Thomas Petazzoni Subject: [PATCH v3 41/46] media: sun6i-csi: Only configure capture when streaming Date: Fri, 11 Mar 2022 15:35:27 +0100 Message-Id: <20220311143532.265091-42-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220311143532.265091-1-paul.kocialkowski@bootlin.com> References: <20220311143532.265091-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add a streaming element to the capture state structure to know if the capture device is used or not. Only configure things related to output when streaming, including the output format, irq, state (dma buffer) and window configuration registers. After this change, it becomes possible to use the bridge without the capture device, which will be the case in the isp media flow. Signed-off-by: Paul Kocialkowski --- .../sunxi/sun6i-csi/sun6i_csi_bridge.c | 50 ++++++++++++------- .../sunxi/sun6i-csi/sun6i_csi_capture.c | 11 +++- .../sunxi/sun6i-csi/sun6i_csi_capture.h | 1 + 3 files changed, 41 insertions(+), 21 deletions(-) diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c index 7675333f18dd..ca87ba4c0b9d 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c @@ -338,6 +338,7 @@ sun6i_csi_bridge_configure_mipi_csi2(struct sun6i_csi_device *csi_dev) static void sun6i_csi_bridge_configure_format(struct sun6i_csi_device *csi_dev) { struct regmap *regmap = csi_dev->regmap; + bool capture_streaming = csi_dev->capture.state.streaming; const struct sun6i_csi_bridge_format *bridge_format; const struct sun6i_csi_capture_format *capture_format; u32 mbus_code, field, pixelformat; @@ -353,26 +354,29 @@ static void sun6i_csi_bridge_configure_format(struct sun6i_csi_device *csi_dev) input_format = bridge_format->input_format; input_yuv_seq = bridge_format->input_yuv_seq; - sun6i_csi_capture_format(csi_dev, &pixelformat, NULL); + if (capture_streaming) { + sun6i_csi_capture_format(csi_dev, &pixelformat, NULL); - capture_format = sun6i_csi_capture_format_find(pixelformat); - if (WARN_ON(!capture_format)) - return; + capture_format = sun6i_csi_capture_format_find(pixelformat); + if (WARN_ON(!capture_format)) + return; - if (capture_format->input_format_raw) - input_format = SUN6I_CSI_INPUT_FMT_RAW; + if (capture_format->input_format_raw) + input_format = SUN6I_CSI_INPUT_FMT_RAW; - if (capture_format->input_yuv_seq_invert) - input_yuv_seq = bridge_format->input_yuv_seq_invert; + if (capture_format->input_yuv_seq_invert) + input_yuv_seq = bridge_format->input_yuv_seq_invert; - if (field == V4L2_FIELD_INTERLACED || - field == V4L2_FIELD_INTERLACED_TB || - field == V4L2_FIELD_INTERLACED_BT) - output_format = capture_format->output_format_field; - else - output_format = capture_format->output_format_frame; + if (field == V4L2_FIELD_INTERLACED || + field == V4L2_FIELD_INTERLACED_TB || + field == V4L2_FIELD_INTERLACED_BT) + output_format = capture_format->output_format_field; + else + output_format = capture_format->output_format_frame; + + value |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(output_format); + } - value |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(output_format); value |= SUN6I_CSI_CH_CFG_INPUT_FMT(input_format); value |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(input_yuv_seq); @@ -401,6 +405,7 @@ static void sun6i_csi_bridge_configure(struct sun6i_csi_device *csi_dev) static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on) { struct sun6i_csi_device *csi_dev = v4l2_get_subdevdata(subdev); + bool capture_streaming = csi_dev->capture.state.streaming; struct device *dev = csi_dev->dev; struct v4l2_subdev *source_subdev; /* Initialize to 0 to use both in disable label (ret != 0) and off. */ @@ -431,15 +436,20 @@ static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on) /* Configure */ sun6i_csi_bridge_configure(csi_dev); - sun6i_csi_capture_configure(csi_dev); + + if (capture_streaming) + sun6i_csi_capture_configure(csi_dev); /* State Update */ - sun6i_csi_capture_state_update(csi_dev); + if (capture_streaming) + sun6i_csi_capture_state_update(csi_dev); /* Enable */ - sun6i_csi_bridge_irq_enable(csi_dev); + if (capture_streaming) + sun6i_csi_bridge_irq_enable(csi_dev); + sun6i_csi_bridge_enable(csi_dev); ret = v4l2_subdev_call(source_subdev, video, s_stream, 1); @@ -449,7 +459,9 @@ static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on) return 0; disable: - sun6i_csi_bridge_irq_disable(csi_dev); + if (capture_streaming) + sun6i_csi_bridge_irq_disable(csi_dev); + sun6i_csi_bridge_disable(csi_dev); csi_dev->bridge.source = NULL; diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c index 67863642df44..f6dac15af675 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c @@ -616,13 +616,17 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue, if (ret < 0) goto error_state; + state->streaming = true; + ret = v4l2_subdev_call(subdev, video, s_stream, 1); if (ret && ret != -ENOIOCTLCMD) - goto error_media_pipeline; + goto error_streaming; return 0; -error_media_pipeline: +error_streaming: + state->streaming = false; + media_pipeline_stop(&video_dev->entity); error_state: @@ -636,11 +640,14 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue, static void sun6i_csi_capture_stop_streaming(struct vb2_queue *queue) { struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue); + struct sun6i_csi_capture_state *state = &csi_dev->capture.state; struct video_device *video_dev = &csi_dev->capture.video_dev; struct v4l2_subdev *subdev = &csi_dev->bridge.subdev; v4l2_subdev_call(subdev, video, s_stream, 0); + state->streaming = false; + media_pipeline_stop(&video_dev->entity); sun6i_csi_capture_state_cleanup(csi_dev, true); diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h index ceceb030aef6..29893cf96f6b 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h @@ -44,6 +44,7 @@ struct sun6i_csi_capture_state { struct sun6i_csi_buffer *complete; unsigned int sequence; + bool streaming; }; struct sun6i_csi_capture {