media: imx: imx7-mipi-csis: Implement the .enum_mbus_code() operation (4b7126a7) · Commits · 戴 / test

drivers/staging/media/imx/imx7-mipi-csis.c

+33 −0

Original line number	Diff line number	Diff line
		@@ -752,6 +752,38 @@ static int mipi_csis_get_fmt(struct v4l2_subdev *mipi_sd,
		return 0;
		}

		static int mipi_csis_enum_mbus_code(struct v4l2_subdev *mipi_sd,
		struct v4l2_subdev_pad_config *cfg,
		struct v4l2_subdev_mbus_code_enum *code)
		{
		struct csi_state *state = mipi_sd_to_csis_state(mipi_sd);

		/*
		* The CSIS can't transcode in any way, the source format is identical
		* to the sink format.
		*/
		if (code->pad == CSIS_PAD_SOURCE) {
		struct v4l2_mbus_framefmt *fmt;

		if (code->index > 0)
		return -EINVAL;

		fmt = mipi_csis_get_format(state, cfg, code->which, code->pad);
		code->code = fmt->code;
		return 0;
		}

		if (code->pad != CSIS_PAD_SINK)
		return -EINVAL;

		if (code->index >= ARRAY_SIZE(mipi_csis_formats))
		return -EINVAL;

		code->code = mipi_csis_formats[code->index].code;

		return 0;
		}

		static int mipi_csis_set_fmt(struct v4l2_subdev *mipi_sd,
		struct v4l2_subdev_pad_config *cfg,
		struct v4l2_subdev_format *sdformat)
		@@ -881,6 +913,7 @@ static const struct v4l2_subdev_video_ops mipi_csis_video_ops = {

		static const struct v4l2_subdev_pad_ops mipi_csis_pad_ops = {
		.init_cfg = mipi_csis_init_cfg,
		.enum_mbus_code = mipi_csis_enum_mbus_code,
		.get_fmt = mipi_csis_get_fmt,
		.set_fmt = mipi_csis_set_fmt,
		};