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@pengutronix.de --- 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 448043c051e9..e10cf54dcb0f 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 acb601a889d3..ac2e3cc02beb 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)