[PATCH v2 15/21] staging: media: tegra-video: add a per-soc enable/disable op

Luca Ceresoli
2022-11-28T15:27:52Z

The Tegra20 VI needs an additional operation to enable the VI, add an
operation for that.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

---

No changes in v2
---
drivers/staging/media/tegra-video/vi.c | 7 +++++++
drivers/staging/media/tegra-video/vi.h | 4 ++++
2 files changed, 11 insertions(+)

diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 2dd3c6c944a2..d0c387873d4e 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -1853,6 +1853,9 @@ static int tegra_vi_probe(struct platform_device *pdev)
vi->client.ops = &vi_client_ops;
vi->client.dev = &pdev->dev;

+ if (vi->ops->vi_enable)
+ vi->ops->vi_enable(vi, true);
+
ret = host1x_client_register(&vi->client);
if (ret < 0) {
dev_err(&pdev->dev,
@@ -1863,6 +1866,8 @@ static int tegra_vi_probe(struct platform_device *pdev)
return 0;

rpm_disable:
+ if (vi->ops->vi_enable)
+ vi->ops->vi_enable(vi, false);
pm_runtime_disable(&pdev->dev);
return ret;
}
@@ -1879,6 +1884,8 @@ static int tegra_vi_remove(struct platform_device *pdev)
return err;
}

+ if (vi->ops->vi_enable)
+ vi->ops->vi_enable(vi, false);
pm_runtime_disable(&pdev->dev);

return 0;
diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h
index 879547073371..851c4f3fcb91 100644
--- a/drivers/staging/media/tegra-video/vi.h
+++ b/drivers/staging/media/tegra-video/vi.h
@@ -37,8 +37,11 @@ enum tegra_vi_pg_mode {
TEGRA_VI_PG_PATCH,
};

+struct tegra_vi;
+
/**
* struct tegra_vi_ops - Tegra VI operations
+ * @vi_enable: soc-specific operations needed to enable/disable the VI peripheral
* @vi_fmt_align: modify `pix` to fit the hardware alignment
* requirements and fill image geometry
* @vi_start_streaming: starts media pipeline, subdevice streaming, sets up
@@ -48,6 +51,7 @@ enum tegra_vi_pg_mode {
* back any queued buffers.
*/
struct tegra_vi_ops {
+ int (*vi_enable)(struct tegra_vi *vi, bool on);
void (*vi_fmt_align)(struct v4l2_pix_format *pix, unsigned int bpp);
int (*vi_start_streaming)(struct vb2_queue *vq, u32 count);
void (*vi_stop_streaming)(struct vb2_queue *vq);
--
2.34.1