Commit 6b7acd84 authored by Jonas Aaberg's avatar Jonas Aaberg Committed by Dan Williams
Browse files

DMAENGINE: ste_dma40: support disabling physical channels 



This makes it possible to disable physical channels.

Signed-off-by: default avatarJonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 59516725

drivers/dma/ste_dma40.c

+8 −0
Original line number Diff line number Diff line
@@ -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);