dmaengine: PL08x: Refactor pl08x_getbytes_chan() to lower indentation

/* The channel should be paused when calling this */

static u32 pl08x_getbytes_chan(struct pl08x_dma_chan *plchan)

{

	struct pl08x_lli *llis_va;

	struct pl08x_phy_chan *ch;

	dma_addr_t llis_bus;

	struct pl08x_txd *txd;

	size_t bytes = 0;

	size_t bytes;

	int index;

	u32 clli;

	ch = plchan->phychan;

	txd = plchan->at;

	if (!ch || !txd)

		return 0;

	/*

	 * Follow the LLIs to get the number of remaining

	 * bytes in the currently active transaction.

	 */

	if (ch && txd) {

		u32 clli = readl(ch->base + PL080_CH_LLI) & ~PL080_LLI_LM_AHB2;

	clli = readl(ch->base + PL080_CH_LLI) & ~PL080_LLI_LM_AHB2;

	/* First get the remaining bytes in the active transfer */

	bytes = get_bytes_in_cctl(readl(ch->base + PL080_CH_CONTROL));

		if (clli) {

			struct pl08x_lli *llis_va = txd->llis_va;

			dma_addr_t llis_bus = txd->llis_bus;

			int index;

	if (!clli)

		return bytes;

	llis_va = txd->llis_va;

	llis_bus = txd->llis_bus;

	BUG_ON(clli < llis_bus || clli >= llis_bus +

				sizeof(struct pl08x_lli) * MAX_NUM_TSFR_LLIS);

		if (!llis_va[index].lli)

			break;

	}

		}

	}

	return bytes;

}