[PATCH 17/18] DMAENGINE: ste_dma40: support disabling physical channels
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From: Linus Walleij on 1 Jun 2010 08:30 From: Jonas Aaberg <jonas.aberg(a)stericsson.com> This makes it possible to disable physical channels. Signed-off-by: Jonas Aaberg <jonas.aberg(a)stericsson.com> Signed-off-by: Linus Walleij <linus.walleij(a)stericsson.com> --- drivers/dma/ste_dma40.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 5cde3c3..0829ddb 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2236,6 +2236,14 @@ 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); -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |