linux-kernel - [PATCH v1 2/6] dmaengine: mcf-edma: update to 'dmamux

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Message-ID: <1557512248-8440-3-git-send-email-yibin.gong@nxp.com>
Date:   Fri, 10 May 2019 10:14:12 +0000
From:   Robin Gong <yibin.gong@....com>
To:     "robh@...nel.org" <robh@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>
CC:     dl-linux-imx <linux-imx@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>
Subject: [PATCH v1 2/6] dmaengine: mcf-edma: update to 'dmamux_nr'

Update to 'dmamux_nr' instead of static macro DMAMUX_NR since
new version edma only has one dmamux.

Signed-off-by: Robin Gong <yibin.gong@....com>
---
 drivers/dma/fsl-edma-common.c | 2 +-
 drivers/dma/mcf-edma.c        | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 680b2a0..c9a17fc 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -84,7 +84,7 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan,
 	void __iomem *muxaddr;
 	unsigned int chans_per_mux, ch_off;
 
-	chans_per_mux = fsl_chan->edma->n_chans / DMAMUX_NR;
+	chans_per_mux = fsl_chan->edma->n_chans / fsl_chan->edma->dmamux_nr;
 	ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux;
 	muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux];
 	slot = EDMAMUX_CHCFG_SOURCE(slot);
diff --git a/drivers/dma/mcf-edma.c b/drivers/dma/mcf-edma.c
index 7de54b2f..4484190 100644
--- a/drivers/dma/mcf-edma.c
+++ b/drivers/dma/mcf-edma.c
@@ -189,6 +189,7 @@ static int mcf_edma_probe(struct platform_device *pdev)
 
 	/* Set up version for ColdFire edma */
 	mcf_edma->version = v2;
+	mcf_edma->dmamux_nr = DMAMUX_NR;
 	mcf_edma->big_endian = 1;
 
 	if (!mcf_edma->n_chans) {
-- 
2.7.4