Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 25c94f7f authored by Russell King - ARM Linux's avatar Russell King - ARM Linux Committed by Vinod Koul
Browse files

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: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent f44bd191

drivers/dma/amba-pl08x.c

+3 −4
Original line number Diff line number Diff line
@@ -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 =