From: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
The i.MX6 QuadPlus IPU needs to PRG unit to gain access to the
data bus. Make sure it is present and available to be used.
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
drivers/gpu/ipu-v3/ipu-common.c | 11 ++++++++++-
drivers/gpu/ipu-v3/ipu-prv.h | 1 +
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 4c84539897467..7aefccec31b1e 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -939,6 +939,7 @@ static const struct of_device_id imx_ipu_dt_ids[] = {
{ .compatible = "fsl,imx51-ipu", .data = &ipu_type_imx51, },
{ .compatible = "fsl,imx53-ipu", .data = &ipu_type_imx53, },
{ .compatible = "fsl,imx6q-ipu", .data = &ipu_type_imx6q, },
+ { .compatible = "fsl,imx6qp-ipu", .data = &ipu_type_imx6q, },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx_ipu_dt_ids);
@@ -1398,11 +1399,19 @@ static int ipu_probe(struct platform_device *pdev)
if (!ipu)
return -ENODEV;
+ ipu->id = of_alias_get_id(np, "ipu");
+
+ if (of_device_is_compatible(np, "fsl,imx6qp-ipu")) {
+ ipu->prg_priv = ipu_prg_lookup_by_phandle(&pdev->dev,
+ "fsl,prg", ipu->id);
+ if (!ipu->prg_priv)
+ return -EPROBE_DEFER;
+ }
+
for (i = 0; i < 64; i++)
ipu->channel[i].ipu = ipu;
ipu->devtype = devtype;
ipu->ipu_type = devtype->type;
- ipu->id = of_alias_get_id(np, "ipu");
spin_lock_init(&ipu->lock);
mutex_init(&ipu->channel_lock);
diff --git a/drivers/gpu/ipu-v3/ipu-prv.h b/drivers/gpu/ipu-v3/ipu-prv.h
index 7e9c47efcb1e0..ca2a223a0d1e0 100644
--- a/drivers/gpu/ipu-v3/ipu-prv.h
+++ b/drivers/gpu/ipu-v3/ipu-prv.h
@@ -209,6 +209,7 @@ struct ipu_soc {
struct ipu_vdi *vdi_priv;
struct ipu_image_convert_priv *image_convert_priv;
struct ipu_smfc_priv *smfc_priv;
+ struct ipu_prg *prg_priv;
};
static inline u32 ipu_idmac_read(struct ipu_soc *ipu, unsigned offset)
--
2.11.0
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