diff options
| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2013-12-21 02:35:06 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-14 17:37:12 +0400 |
| commit | 34947b8aebe3f2d4eceb65fceafa92bf8dc97d96 (patch) | |
| tree | df4846111c30f6dea67c284057daad23aef446d5 /drivers/media/platform/exynos4-is/fimc-is-regs.c | |
| parent | fa91f1056f17c87bc0fa601f80d1b1a4487fd701 (diff) | |
| download | linux-34947b8aebe3f2d4eceb65fceafa92bf8dc97d96.tar.xz | |
[media] exynos4-is: Add the FIMC-IS ISP capture DMA driver
Add a video capture node for the FIMC-IS ISP IP block. The Exynos4x12
FIMC-IS ISP IP block has 2 DMA interfaces that allow to capture raw
Bayer and YUV data to memory. Currently only the DMA2 output is and
raw Bayer data capture is supported.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/platform/exynos4-is/fimc-is-regs.c')
| -rw-r--r-- | drivers/media/platform/exynos4-is/fimc-is-regs.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/platform/exynos4-is/fimc-is-regs.c b/drivers/media/platform/exynos4-is/fimc-is-regs.c index 5c7bd2ac40d2..cfe4406a83ff 100644 --- a/drivers/media/platform/exynos4-is/fimc-is-regs.c +++ b/drivers/media/platform/exynos4-is/fimc-is-regs.c @@ -105,6 +105,20 @@ int fimc_is_hw_get_params(struct fimc_is *is, unsigned int num_args) return 0; } +void fimc_is_hw_set_isp_buf_mask(struct fimc_is *is, unsigned int mask) +{ + if (hweight32(mask) == 1) { + dev_err(&is->pdev->dev, "%s(): not enough buffers (mask %#x)\n", + __func__, mask); + return; + } + + if (mcuctl_read(is, MCUCTL_REG_ISSR(23)) != 0) + dev_dbg(&is->pdev->dev, "non-zero DMA buffer mask\n"); + + mcuctl_write(mask, is, MCUCTL_REG_ISSR(23)); +} + void fimc_is_hw_set_sensor_num(struct fimc_is *is) { pr_debug("setting sensor index to: %d\n", is->sensor_index); |