Commit e2de925b authored Dec 08, 2020 by Peter Ujfalusi Committed by Vinod Koul Dec 11, 2020

dmaengine: ti: k3-udma: Correct normal channel offset when uchan_cnt is not 0



According to different sections of the TRM, the hchan_cnt of CAP3 includes
the number of uchan in UDMA, thus the start offset of the normal channels
are hchan_cnt.

Fixes: daf4ad04 ("dmaengine: ti: k3-udma: Query throughput level information from hardware")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20201208090440.31792-2-peter.ujfalusi@ti.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>

parent 6ef4474a

drivers/dma/ti/k3-udma.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -3199,8 +3199,7 @@ static int udma_setup_resources(struct udma_dev *ud)
		} else if (UDMA_CAP3_UCHAN_CNT(cap3)) {
		ud->tpl_levels = 3;
		ud->tpl_start_idx[1] = UDMA_CAP3_UCHAN_CNT(cap3);
		ud->tpl_start_idx[0] = ud->tpl_start_idx[1] +
		UDMA_CAP3_HCHAN_CNT(cap3);
		ud->tpl_start_idx[0] = UDMA_CAP3_HCHAN_CNT(cap3);
		} else if (UDMA_CAP3_HCHAN_CNT(cap3)) {
		ud->tpl_levels = 2;
		ud->tpl_start_idx[0] = UDMA_CAP3_HCHAN_CNT(cap3);

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