Message ID | 1557512248-8440-4-git-send-email-yibin.gong@nxp.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Fri, 10 May 2019 10:14:17 +0000 From: Robin Gong <yibin.gong@nxp.com> To: "robh@kernel.org" <robh@kernel.org>, "shawnguo@kernel.org" <shawnguo@kernel.org>, "s.hauer@pengutronix.de" <s.hauer@pengutronix.de>, "festevam@gmail.com" <festevam@gmail.com>, "mark.rutland@arm.com" <mark.rutland@arm.com>, "vkoul@kernel.org" <vkoul@kernel.org>, "dan.j.williams@intel.com" <dan.j.williams@intel.com> Subject: [PATCH v1 3/6] dmaengine: fsl-edma-common: move dmamux register to another single function Thread-Topic: [PATCH v1 3/6] dmaengine: fsl-edma-common: move dmamux register to another single function Thread-Index: AQHVBxkgcaTW3qOI30G2s+s8jusgdA== Date: Fri, 10 May 2019 10:14:17 +0000 Message-ID: <1557512248-8440-4-git-send-email-yibin.gong@nxp.com> References: <1557512248-8440-1-git-send-email-yibin.gong@nxp.com> In-Reply-To: <1557512248-8440-1-git-send-email-yibin.gong@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK0PR01CA0062.apcprd01.prod.exchangelabs.com (2603:1096:203:a6::26) To VI1PR04MB4543.eurprd04.prod.outlook.com (2603:10a6:803:6d::26) authentication-results: spf=none (sender IP is ) smtp.mailfrom=yibin.gong@nxp.com; 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add edma2 for i.mx7ulp
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expand
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diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index c9a17fc..bb24251 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -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) { @@ -89,10 +102,7 @@ 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);
Prepare for edmav2 on i.mx7ulp whose dmamux register is 32bit. No function impacted. Signed-off-by: Robin Gong <yibin.gong@nxp.com> --- drivers/dma/fsl-edma-common.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)