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Commit 20c169ac authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Vinod Koul
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dmaengine: rcar-dmac: clear pertinence number of channels 



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: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 6fb56299

drivers/dma/sh/rcar-dmac.c

+1 −1
Original line number Diff line number Diff line
@@ -413,7 +413,7 @@ 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);