From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date: Mon, 14 Jun 2021 11:23:17 +0000 (+0200)
Subject: media: ti-vpe: cal: add cal_ctx_prepare/unprepare
X-Git-Tag: accepted/tizen/unified/20230118.172025~6519^2~148
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2e63c4c57aff0e2972eaed126b8b64bfd9ed4604;p=platform%2Fkernel%2Flinux-rpi.git

media: ti-vpe: cal: add cal_ctx_prepare/unprepare

In the following patches we need to do context configuration which might
fail. Add new functions, cal_ctx_prepare and cal_ctx_unprepare, to
handle such configuration.

[hverkuil: fix spurious newline checkpatch warning]

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/media/platform/ti-vpe/cal-video.c b/drivers/media/platform/ti-vpe/cal-video.c
index 9d0b515..f175245 100644
--- a/drivers/media/platform/ti-vpe/cal-video.c
+++ b/drivers/media/platform/ti-vpe/cal-video.c
@@ -708,6 +708,12 @@ static int cal_start_streaming(struct vb2_queue *vq, unsigned int count)
 		goto error_pipeline;
 	}
 
+	ret = cal_ctx_prepare(ctx);
+	if (ret) {
+		ctx_err(ctx, "Failed to prepare context: %d\n", ret);
+		goto error_pipeline;
+	}
+
 	spin_lock_irq(&ctx->dma.lock);
 	buf = list_first_entry(&ctx->dma.queue, struct cal_buffer, list);
 	ctx->dma.pending = buf;
@@ -735,6 +741,7 @@ static int cal_start_streaming(struct vb2_queue *vq, unsigned int count)
 error_stop:
 	cal_ctx_stop(ctx);
 	pm_runtime_put_sync(ctx->cal->dev);
+	cal_ctx_unprepare(ctx);
 
 error_pipeline:
 	media_pipeline_stop(&ctx->vdev.entity);
@@ -754,6 +761,8 @@ static void cal_stop_streaming(struct vb2_queue *vq)
 
 	pm_runtime_put_sync(ctx->cal->dev);
 
+	cal_ctx_unprepare(ctx);
+
 	cal_release_buffers(ctx, VB2_BUF_STATE_ERROR);
 
 	media_pipeline_stop(&ctx->vdev.entity);
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index 2f70725..fb3d141 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -430,6 +430,15 @@ static bool cal_ctx_wr_dma_stopped(struct cal_ctx *ctx)
 	return stopped;
 }
 
+int cal_ctx_prepare(struct cal_ctx *ctx)
+{
+	return 0;
+}
+
+void cal_ctx_unprepare(struct cal_ctx *ctx)
+{
+}
+
 void cal_ctx_start(struct cal_ctx *ctx)
 {
 	ctx->sequence = 0;
diff --git a/drivers/media/platform/ti-vpe/cal.h b/drivers/media/platform/ti-vpe/cal.h
index af460845..09ad20f 100644
--- a/drivers/media/platform/ti-vpe/cal.h
+++ b/drivers/media/platform/ti-vpe/cal.h
@@ -296,6 +296,8 @@ struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal,
 					 unsigned int instance);
 void cal_camerarx_destroy(struct cal_camerarx *phy);
 
+int cal_ctx_prepare(struct cal_ctx *ctx);
+void cal_ctx_unprepare(struct cal_ctx *ctx);
 void cal_ctx_set_dma_addr(struct cal_ctx *ctx, dma_addr_t addr);
 void cal_ctx_start(struct cal_ctx *ctx);
 void cal_ctx_stop(struct cal_ctx *ctx);