Commit 78690bf3 authored by Robin Gong's avatar Robin Gong Committed by Vinod Koul
Browse files

dmaengine: fsl-edma-common: move dmamux register to another single function 



Prepare for edmav2 on i.mx7ulp whose dmamux register is 32bit. No function
impacted.

Signed-off-by: default avatarRobin Gong <yibin.gong@nxp.com>
Tested-by: default avatarAngelo Dureghello <angelo@sysam.it>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent af802728

drivers/dma/fsl-edma-common.c

+14 −4
Original line number Diff line number Diff line
@@ -77,6 +77,19 @@ void fsl_edma_disable_request(struct fsl_edma_chan *fsl_chan) 
}

EXPORT_SYMBOL_GPL(fsl_edma_disable_request);



static void mux_configure8(struct fsl_edma_chan *fsl_chan, void __iomem *addr,

			   u32 off, u32 slot, bool enable)

{

	u8 val8;



	if (enable)

		val8 = EDMAMUX_CHCFG_ENBL | slot;

	else

		val8 = EDMAMUX_CHCFG_DIS;



	iowrite8(val8, addr + off);

}



void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan,

			unsigned int slot, bool enable)

{
@@ -90,10 +103,7 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, 
	muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux];

	slot = EDMAMUX_CHCFG_SOURCE(slot);



	if (enable)

		iowrite8(EDMAMUX_CHCFG_ENBL | slot, muxaddr + ch_off);

	else

		iowrite8(EDMAMUX_CHCFG_DIS, muxaddr + ch_off);

	mux_configure8(fsl_chan, muxaddr, ch_off, slot, enable);

}

EXPORT_SYMBOL_GPL(fsl_edma_chan_mux);

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