diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-02-15 07:27:06 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-03-11 13:59:50 +0300 |
| commit | ff43ca9119786bdf686623d269713343f08ab48c (patch) | |
| tree | d6b3ddb2768ab2d6189fcccb53e43abba0749b8d | |
| parent | b0f4a7f77c1dfed248db12f7ca0e5374c116d39f (diff) | |
| download | linux-ff43ca9119786bdf686623d269713343f08ab48c.tar.xz | |
media: imx: imx7-media-csi: Move CSI configuration before source start
There's no reason to delay the CSI configuration and the DMA setup after
starting the source. Move it before, simplifying error handling at
stream start.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
| -rw-r--r-- | drivers/staging/media/imx/imx7-media-csi.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c index 9cb04fa31b5a..f6a26dff8541 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -577,15 +577,23 @@ static int imx7_csi_init(struct imx7_csi *csi) ret = clk_prepare_enable(csi->mclk); if (ret < 0) return ret; + imx7_csi_hw_reset(csi); imx7_csi_init_interface(csi); imx7_csi_dmareq_rff_enable(csi); + ret = imx7_csi_dma_setup(csi); + if (ret < 0) + return ret; + + imx7_csi_configure(csi); + return 0; } static void imx7_csi_deinit(struct imx7_csi *csi) { + imx7_csi_dma_cleanup(csi); imx7_csi_hw_reset(csi); imx7_csi_init_interface(csi); imx7_csi_dmareq_rff_disable(csi); @@ -612,24 +620,14 @@ static void imx7_csi_disable(struct imx7_csi *csi) imx7_csi_hw_disable(csi); } -static int imx7_csi_streaming_start(struct imx7_csi *csi) +static void imx7_csi_streaming_start(struct imx7_csi *csi) { - int ret; - - ret = imx7_csi_dma_setup(csi); - if (ret < 0) - return ret; - - imx7_csi_configure(csi); imx7_csi_enable(csi); - - return 0; } static int imx7_csi_streaming_stop(struct imx7_csi *csi) { imx7_csi_dma_stop(csi); - imx7_csi_dma_cleanup(csi); imx7_csi_disable(csi); @@ -769,12 +767,7 @@ static int imx7_csi_s_stream(struct v4l2_subdev *sd, int enable) goto out_unlock; } - ret = imx7_csi_streaming_start(csi); - if (ret < 0) { - v4l2_subdev_call(csi->src_sd, video, s_stream, 0); - imx7_csi_deinit(csi); - goto out_unlock; - } + imx7_csi_streaming_start(csi); } else { imx7_csi_streaming_stop(csi); |