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gpu: ipu-v3: only set non-zero AXI ID for IC when PRG is absent

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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.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Lucas Stach 2017-03-08 12:13:19 +01:00 committed by Philipp Zabel
parent 92681fe7e9
commit 320a89ad7b
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/ipu-v3/ipu-image-convert.c
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@ -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);
}