diff options
| author |   Lucas Stach <l.stach@pengutronix.de> | 2018-09-11 15:26:54 +0200 |
|---|---|---|
| committer |   Philipp Zabel <p.zabel@pengutronix.de> | 2019-02-22 11:58:45 +0100 |
| commit | 4bfbd561fc7d3758873ebfc38b0043065acb77f1 (patch) | |
| tree | adf56aa76403c11da1e6823e3ac21fd19904f09d /drivers/gpu/ipu-v3 | |
| parent | gpu: ipu-v3: pre: add double buffer status readback (diff) | |
| download | linux-dev-4bfbd561fc7d3758873ebfc38b0043065acb77f1.tar.xz linux-dev-4bfbd561fc7d3758873ebfc38b0043065acb77f1.zip | |
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>
Diffstat (limited to 'drivers/gpu/ipu-v3')
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-prg.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-prg.c b/drivers/gpu/ipu-v3/ipu-prg.c index 38a3a9764e49..94b76badf677 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; |