Using non-zero AXI IDs for anything other than the display channels
collides with the PRG AXI snooping, so only do this if there is no
PRG present.
Signed-off-by: Lucas Stach <l.st...@pengutronix.de>
---
drivers/gpu/ipu-v3/ipu-image-convert.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c
b/drivers/gpu/ipu-v3/ipu-image-convert.c
index 805b6fa7b5f4..524a717ab28e 100644
--- a/drivers/gpu/ipu-v3/ipu-image-convert.c
+++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
@@ -671,7 +671,12 @@ static void init_idmac_channel(struct
ipu_image_convert_ctx *ctx,
ipu_ic_task_idma_init(chan->ic, channel, width, height,
burst_size, rot_mode);
- ipu_cpmem_set_axi_id(channel, 1);
+ /*
+ * Setting a non-zero AXI ID collides with the PRG AXI snooping, so
+ * only do this when there is no PRG present.
+ */
+ if (!channel->ipu->prg_priv)
+ ipu_cpmem_set_axi_id(channel, 1);
ipu_idmac_set_double_buffer(channel, ctx->double_buffering);
}
--
2.11.0
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