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| author | Lucas Stach <l.stach@pengutronix.de> | 2018-09-11 15:26:54 +0200 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2019-01-23 11:58:55 +0100 |
| commit | baaf4074feb822cdfeb847a4c036d088d2249c72 (patch) | |
| tree | c8007340a8e33d25f5f0965d5a10cb9e930c948e | |
| parent | 88f797f51a4c2de7ecab2139349dce23c0933b03 (diff) | |
| download | linux-0-day-baaf4074feb822cdfeb847a4c036d088d2249c72.tar.gz linux-0-day-baaf4074feb822cdfeb847a4c036d088d2249c72.tar.xz | |
gpu: ipu-v3: prg: add function to get channel configure status
This allows channels using the PRG to check if a requested configuration
update has been applied or is still pending.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
[p.zabel@pengutronix.de: inverted logic: done -> pending]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-prg.c | 16 | ||||
| -rw-r--r-- | include/video/imx-ipu-v3.h | 1 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-prg.c b/drivers/gpu/ipu-v3/ipu-prg.c index 38a3a9764e49a..94b76badf677e 100644 --- a/drivers/gpu/ipu-v3/ipu-prg.c +++ b/drivers/gpu/ipu-v3/ipu-prg.c @@ -347,6 +347,22 @@ int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan, } EXPORT_SYMBOL_GPL(ipu_prg_channel_configure); +bool ipu_prg_channel_configure_pending(struct ipuv3_channel *ipu_chan) +{ + int prg_chan = ipu_prg_ipu_to_prg_chan(ipu_chan->num); + struct ipu_prg *prg = ipu_chan->ipu->prg_priv; + struct ipu_prg_channel *chan; + + if (prg_chan < 0) + return false; + + chan = &prg->chan[prg_chan]; + WARN_ON(!chan->enabled); + + return ipu_pre_update_pending(prg->pres[chan->used_pre]); +} +EXPORT_SYMBOL_GPL(ipu_prg_channel_configure_pending); + static int ipu_prg_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h index e582e8e7527af..b80b85f0d9d8c 100644 --- a/include/video/imx-ipu-v3.h +++ b/include/video/imx-ipu-v3.h @@ -348,6 +348,7 @@ int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan, unsigned int axi_id, unsigned int width, unsigned int height, unsigned int stride, u32 format, uint64_t modifier, unsigned long *eba); +bool ipu_prg_channel_configure_pending(struct ipuv3_channel *ipu_chan); /* * IPU CMOS Sensor Interface (csi) functions |