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authorLucas Stach <l.stach@pengutronix.de>2018-09-11 15:26:54 +0200
committerPhilipp Zabel <p.zabel@pengutronix.de>2019-02-22 11:58:45 +0100
commit4bfbd561fc7d3758873ebfc38b0043065acb77f1 (patch)
treeadf56aa76403c11da1e6823e3ac21fd19904f09d /drivers/gpu/ipu-v3/ipu-prg.c
parent0a29b1abaf5ba86b2ef5da5a1403ff64dc0d9449 (diff)
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/ipu-prg.c')
-rw-r--r--drivers/gpu/ipu-v3/ipu-prg.c16
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;