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ARM: PL08x: don't assume that the LLI pointer has the bus bit clear

We only want use the address of the LLI pointer when locating the
corresponding structure in memory, so clear the master bus selection
bit.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Russell King - ARM Linux 14 жил өмнө
parent
commit
4c0df6a3ce

+ 1 - 1
drivers/dma/amba-pl08x.c

@@ -356,7 +356,7 @@ static u32 pl08x_getbytes_chan(struct pl08x_dma_chan *plchan)
 	if (ch && txd) {
 		struct pl08x_lli *llis_va = txd->llis_va;
 		struct pl08x_lli *llis_bus = (struct pl08x_lli *) txd->llis_bus;
-		u32 clli = readl(ch->base + PL080_CH_LLI);
+		u32 clli = readl(ch->base + PL080_CH_LLI) & ~PL080_LLI_LM_AHB2;
 
 		/* First get the bytes in the current active LLI */
 		bytes = get_bytes_in_cctl(readl(ch->base + PL080_CH_CONTROL));