From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> DMACHCLR clears each channels, but its channel number is based on its SoC or IP. Current driver is using fixed 0x7fff (= for 15ch), it is not good match for Gen3 or Gen2 Audio DMAC. This patch fixes it Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> Acked-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- v1 -> v2 - 14ch -> 15ch drivers/dma/sh/rcar-dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 57a6dfc9..02b86c6 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -422,7 +422,7 @@ static int rcar_dmac_init(struct rcar_dmac *dmac) u16 dmaor; /* Clear all channels and enable the DMAC globally. */ - rcar_dmac_write(dmac, RCAR_DMACHCLR, 0x7fff); + rcar_dmac_write(dmac, RCAR_DMACHCLR, GENMASK(dmac->n_channels - 1, 0)); rcar_dmac_write(dmac, RCAR_DMAOR, RCAR_DMAOR_PRI_FIXED | RCAR_DMAOR_DME); -- 1.9.1
