From b4b784953c49c01ef0a52b7e81a938bb4bbf53d5 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 6 Jul 2020 20:36:14 +0200 Subject: [PATCH] media: ti-vpe: cal: Move v4l2_device from cal_ctx to cal_dev The v4l2_device structure is meant to represent the whole device. In the CAL case, this corresponds to the CAL, the CAMERARX instances and the connected sensors. There should thus be a single v4l2_device instance. Replace the per-context instance with a global instance in the cal_dev structure. Don't set the v4l2_device name manually as v4l2_device_register() sets it to a value that is suitable for the driver. Signed-off-by: Laurent Pinchart Reviewed-by: Benoit Parrot Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/ti-vpe/cal.c | 44 ++++++++++++++++++------------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index fe96ede..e747d8e 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -290,13 +290,14 @@ struct cal_dev { struct cal_camerarx *phy[CAL_NUM_CSI2_PORTS]; struct cal_ctx *ctx[CAL_NUM_CONTEXT]; + + struct v4l2_device v4l2_dev; }; /* * There is one cal_ctx structure for each camera core context. */ struct cal_ctx { - struct v4l2_device v4l2_dev; struct v4l2_ctrl_handler ctrl_handler; struct video_device vdev; struct v4l2_async_notifier notifier; @@ -1902,7 +1903,7 @@ static int cal_complete_ctx(struct cal_ctx *ctx) vfd = &ctx->vdev; *vfd = cal_videodev; - vfd->v4l2_dev = &ctx->v4l2_dev; + vfd->v4l2_dev = &ctx->cal->v4l2_dev; vfd->queue = q; /* Initialize the control handler. */ @@ -2091,7 +2092,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst) } ctx->notifier.ops = &cal_async_ops; - ret = v4l2_async_notifier_register(&ctx->v4l2_dev, + ret = v4l2_async_notifier_register(&ctx->cal->v4l2_dev, &ctx->notifier); if (ret) { ctx_err(ctx, "Error registering async notifier\n"); @@ -2125,12 +2126,6 @@ static struct cal_ctx *cal_ctx_create(struct cal_dev *cal, int inst) /* save the cal_dev * for future ref */ ctx->cal = cal; - snprintf(ctx->v4l2_dev.name, sizeof(ctx->v4l2_dev.name), - "%s-%03d", CAL_MODULE_NAME, inst); - ret = v4l2_device_register(&cal->pdev->dev, &ctx->v4l2_dev); - if (ret) - return NULL; - /* Make sure Camera Core H/W register area is available */ ctx->phy = cal->phy[inst]; @@ -2139,15 +2134,10 @@ static struct cal_ctx *cal_ctx_create(struct cal_dev *cal, int inst) ctx->cport = inst; ret = of_cal_create_instance(ctx, inst); - if (ret) { - ret = -EINVAL; - goto unreg_dev; - } - return ctx; + if (ret) + return NULL; -unreg_dev: - v4l2_device_unregister(&ctx->v4l2_dev); - return NULL; + return ctx; } static const struct of_device_id cal_of_match[] = { @@ -2243,13 +2233,21 @@ static int cal_probe(struct platform_device *pdev) return PTR_ERR(cal->phy[i]); } + /* Register the V4L2 device. */ + ret = v4l2_device_register(&pdev->dev, &cal->v4l2_dev); + if (ret) { + cal_err(cal, "Failed to register V4L2 device\n"); + return ret; + } + /* Create contexts. */ for (i = 0; i < cal->data->num_csi2_phy; ++i) cal->ctx[i] = cal_ctx_create(cal, i); if (!cal->ctx[0] && !cal->ctx[1]) { cal_err(cal, "Neither port is configured, no point in staying up\n"); - return -ENODEV; + ret = -ENODEV; + goto error_v4l2; } vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); @@ -2258,14 +2256,14 @@ static int cal_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev); if (ret) - goto runtime_disable; + goto error_pm_runtime; cal_get_hwinfo(cal); pm_runtime_put_sync(&pdev->dev); return 0; -runtime_disable: +error_pm_runtime: vb2_dma_contig_clear_max_seg_size(&pdev->dev); pm_runtime_disable(&pdev->dev); @@ -2275,10 +2273,11 @@ runtime_disable: v4l2_async_notifier_unregister(&ctx->notifier); v4l2_async_notifier_cleanup(&ctx->notifier); v4l2_ctrl_handler_free(&ctx->ctrl_handler); - v4l2_device_unregister(&ctx->v4l2_dev); } } +error_v4l2: + v4l2_device_unregister(&cal->v4l2_dev); return ret; } @@ -2301,11 +2300,12 @@ static int cal_remove(struct platform_device *pdev) v4l2_async_notifier_unregister(&ctx->notifier); v4l2_async_notifier_cleanup(&ctx->notifier); v4l2_ctrl_handler_free(&ctx->ctrl_handler); - v4l2_device_unregister(&ctx->v4l2_dev); video_unregister_device(&ctx->vdev); } } + v4l2_device_unregister(&cal->v4l2_dev); + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); -- 2.7.4