From patchwork Wed May 25 19:06:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 12861662 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9F4BBC433F5 for ; Wed, 25 May 2022 19:34:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=b5YG5TAekQ8bKVlgcPqh2yHfPHJtWRv3cWKAs+m6Sn4=; b=AKxzZuGpQ+uo+5 tV7SBuy8Nu+vqlZ6dCY1Tj94h3Z+Qu906sIPq5DKz+eph8WLWwWpGiCpA1Z29dbyu+DeTJZZEsqoL NMWO6ADSCjDQ39Q/47wT9kzZ9tosm8j34wzXQW9qarpBUiI8cEJTx7nG6AYq13miqWAb57wvwhpJc Sk6rnY63K6swtdk3+NHo8sNxW8R2bz3PWejZxHq43mue/KwJ3kzZq9Xfv8vxo2jkL3gINFqunaV6t h+zgQ+sRj+q4Wi4BlLfHpuqZtV8wFDcvZOD6YIfEw6pOT93fBq3lHMLfx9YNiv0PEOHJXJpK6f3lg 7Kz6wP664BmAGvc3N8kg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntwkP-00COSG-1p; Wed, 25 May 2022 19:32:45 +0000 Received: from relay5-d.mail.gandi.net ([2001:4b98:dc4:8::225]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntwLk-00CEWU-TB for linux-arm-kernel@lists.infradead.org; Wed, 25 May 2022 19:07:24 +0000 Received: (Authenticated sender: paul.kocialkowski@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 2FAC01C0005; Wed, 25 May 2022 19:07:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1653505635; 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=IwHDK7KRuo6NnSyhQJ3Js124K9MUdgPsqbRN4iUvCVw=; b=Afz1MdMgP0QaUd8t5OiSIVukDMnbo8HIwPYF460ZOwk1cHjf+8kUehbT6mngyLSkSTqZE6 +tm9RwEmemTPgNUuqVlnqJBVTrWm2MeHt1tFQBGn/T9qL0cGnMsM8GpcWfGK/MIirC/csB 9YGQaKoASc4/VeQ5ROKNG7CkpOC+DbfyB0FtwPIsk1N2zCotExAm9ZaDSgiTSSBDiWhCFd f9myXVdcNnla0vlKrHbBQULr+whKvgsTyXMzSmS8MU+ux2t0syHan6hjKlPorBcgGcdYXg PQfKzztMDvYxvlp4Upukoe3yUZkqswUTUx/Z+woHogQXIPSgORiyoXI+4Pb+vw== 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 v5 41/44] media: sun6i-csi: Only configure capture when streaming Date: Wed, 25 May 2022 21:06:14 +0200 Message-Id: <20220525190617.696344-42-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220525190617.696344-1-paul.kocialkowski@bootlin.com> References: <20220525190617.696344-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220525_120717_296522_06377A0D X-CRM114-Status: GOOD ( 18.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 Acked-by: Jernej Skrabec --- .../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 27289d904d5c..8e9eded0df28 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); @@ -406,6 +410,7 @@ static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on) struct sun6i_csi_device *csi_dev = v4l2_get_subdevdata(subdev); struct sun6i_csi_bridge *bridge = &csi_dev->bridge; struct media_entity *bridge_entity = &bridge->subdev.entity; + bool capture_streaming = csi_dev->capture.state.streaming; struct device *dev = csi_dev->dev; struct sun6i_csi_bridge_source *source; struct v4l2_subdev *source_subdev; @@ -448,15 +453,20 @@ static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on) /* Configure */ sun6i_csi_bridge_configure(csi_dev, source); - 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); @@ -466,7 +476,9 @@ 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); pm_runtime_put(dev); 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 36ddc190a919..c9e7526b84c4 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: @@ -634,11 +638,14 @@ 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 {