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DMAENGINE: ste_dma40: support disabling physical channels 

This makes it possible to disable physical channels.

Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
hifive-unleashed-5.1
Jonas Aaberg 2010-06-20 21:26:59 +00:00 committed by Dan Williams
parent 595167253a
commit 6b7acd8442
1 changed files with 8 additions and 0 deletions
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8
drivers/dma/ste_dma40.c
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@ -2230,6 +2230,14 @@ static int __init d40_phy_res_init(struct d40_base *base)
}
spin_lock_init(&base->phy_res[i].lock);
}
/* Mark disabled channels as occupied */
for (i = 0; base->plat_data->disabled_channels[i] != -1; i++) {
base->phy_res[i].allocated_src = D40_ALLOC_PHY;
base->phy_res[i].allocated_dst = D40_ALLOC_PHY;
num_phy_chans_avail--;
}
dev_info(base->dev, "%d of %d physical DMA channels available\n",
num_phy_chans_avail, base->num_phy_chans);