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>

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 90db51f..6808f7d 100644 (file)
--- 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 =