From 6b7acd84426235c63a3c0f0b230a95064f97b0d4 Mon Sep 17 00:00:00 2001 From: Jonas Aaberg Date: Sun, 20 Jun 2010 21:26:59 +0000 Subject: [PATCH] DMAENGINE: ste_dma40: support disabling physical channels This makes it possible to disable physical channels. Signed-off-by: Jonas Aaberg Signed-off-by: Linus Walleij Signed-off-by: Dan Williams --- drivers/dma/ste_dma40.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index e14c39526255..1d21fbd419d1 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -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); -- 2.39.5