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@xxxxxxxxxxxxxx>
---
drivers/gpu/ipu-v3/ipu-prg.c | 16 ++++++++++++++++
include/video/imx-ipu-v3.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/drivers/gpu/ipu-v3/ipu-prg.c b/drivers/gpu/ipu-v3/ipu-prg.c
index 38a3a9764e49..f78463cf1c15 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);
+int ipu_prg_channel_configure_done(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 -EINVAL;
+
+ chan = &prg->chan[prg_chan];
+ WARN_ON(!chan->enabled);
+
+ return ipu_pre_update_done(prg->pres[chan->used_pre]);
+}
+EXPORT_SYMBOL_GPL(ipu_prg_channel_configure_done);
+
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 abbad94e14a1..45802eab1084 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -345,6 +345,7 @@ 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);
+int ipu_prg_channel_configure_done(struct ipuv3_channel *ipu_chan);
/*
* IPU CMOS Sensor Interface (csi) functions
--
2.19.0
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