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| author | Russell King - ARM Linux <linux@arm.linux.org.uk> | 2011-07-21 17:11:46 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2011-07-26 15:33:28 +0530 |
| commit | 25c94f7fcf70d94e12401b9c957ddf1d303061a3 (patch) | |
| tree | 8d0f926b6bbb2272dce7c506bd55f037d94a8b82 /drivers | |
| parent | f44bd191404841e44a914b2760a16ad328f406a8 (diff) | |
| download | op-kernel-dev-25c94f7fcf70d94e12401b9c957ddf1d303061a3.zip op-kernel-dev-25c94f7fcf70d94e12401b9c957ddf1d303061a3.tar.gz | |
DMA: PL08x: select LLI bus only once per LLI setup
Avoid re-selecting the LLI bus each time we create an LLI. Move it out
of the LLI setup loops.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/amba-pl08x.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 90db51f..6808f7d 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -491,10 +491,10 @@ static inline u32 pl08x_cctl_bits(u32 cctl, u8 srcwidth, u8 dstwidth, struct pl08x_lli_build_data { struct pl08x_txd *txd; - struct pl08x_driver_data *pl08x; struct pl08x_bus_data srcbus; struct pl08x_bus_data dstbus; size_t remainder; + u32 lli_bus; }; /* @@ -547,8 +547,7 @@ static void pl08x_fill_lli_for_desc(struct pl08x_lli_build_data *bd, llis_va[num_llis].src = bd->srcbus.addr; llis_va[num_llis].dst = bd->dstbus.addr; llis_va[num_llis].lli = llis_bus + (num_llis + 1) * sizeof(struct pl08x_lli); - if (bd->pl08x->lli_buses & PL08X_AHB2) - llis_va[num_llis].lli |= PL080_LLI_LM_AHB2; + llis_va[num_llis].lli |= bd->lli_bus; if (cctl & PL080_CONTROL_SRC_INCR) bd->srcbus.addr += len; @@ -601,9 +600,9 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, cctl = txd->cctl; bd.txd = txd; - bd.pl08x = pl08x; bd.srcbus.addr = txd->src_addr; bd.dstbus.addr = txd->dst_addr; + bd.lli_bus = (pl08x->lli_buses & PL08X_AHB2) ? PL080_LLI_LM_AHB2 : 0; /* Find maximum width of the source bus */ bd.srcbus.maxwidth = |
