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Tue, 14 Jul 2020 09:27:21 +0000 From: Robin Gong To: vkoul@kernel.org, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, catalin.marinas@arm.com, will@kernel.org, dan.j.williams@intel.com, angelo@sysam.it Cc: kernel@pengutronix.de, linux-imx@nxp.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/9] dmaengine: fsl-edma: move edma_request functions into drvdata Date: Wed, 15 Jul 2020 01:41:40 +0800 Message-Id: <1594748508-22179-2-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1594748508-22179-1-git-send-email-yibin.gong@nxp.com> References: <1594748508-22179-1-git-send-email-yibin.gong@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR01CA0092.apcprd01.prod.exchangelabs.com (2603:1096:3:15::18) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.67) by SG2PR01CA0092.apcprd01.prod.exchangelabs.com (2603:1096:3:15::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3195.17 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 8G38GCIfqkCXWXoIiUg8I4TBenCrBxmhpNMe+6q0rMzVNuxwRvdCtcB3DrL8yAoMJBRO/aHbyS/egSk06nc3ws9120CJtEuknyQHuAp9dUzF3O01aFw+b1McghzepIWjtEN8crcwH3hXMz3UEKdY5rUmc5eUddX7U7xwMpgM6VdJmNaVrOj3WXqVlHqEr8fwdWocYMPgXuiqT/T795UZHvw45GeljGgyhyT84X/IjN4cNjjrBy+/4iU2d1jOSzRre8yybddfc9PPimMJnDpBwiCdzFoeveMnBFjdcdPtxySNMByRkBwQNcuRP0nyiFzT35WFXM/6HcZM+9q9hHiZYeq0DuO9B/kW4X188GKytpDESI20eRa9tWAR9MioM9KNYcUx1tJy3Z0yQk0+Qv60646lQgB0yM+fCkJmReMwCMvckS46XemxK2k+1zsf4bvnAOrRyFSAAX9E7+BKaEvEEjGoBKAAo3XuP+mHhTNVryA= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 246fa111-a231-45c7-f81d-08d827d81be6 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6638.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jul 2020 09:27:21.2093 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: oDa4mOgqIRS5em7oe6ASDQQtxbapOhQH2tIcD42udDXoLt4tG1MqQCUWQBGReDziDPtFxuvuQxvT532Eubwo3g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB6270 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Move fsl_edma_enable_request/fsl_edma_disable_request into drvdata so that later edma3 could easily be added. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.c | 13 +++++++------ drivers/dma/fsl-edma-common.h | 3 +++ drivers/dma/fsl-edma.c | 10 ++++++++-- drivers/dma/mcf-edma.c | 2 ++ 4 files changed, 20 insertions(+), 8 deletions(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 4550818..ef5294f0 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -42,7 +42,7 @@ #define EDMA_TCD 0x1000 -static void fsl_edma_enable_request(struct fsl_edma_chan *fsl_chan) +void fsl_edma_enable_request(struct fsl_edma_chan *fsl_chan) { struct edma_regs *regs = &fsl_chan->edma->regs; u32 ch = fsl_chan->vchan.chan.chan_id; @@ -58,6 +58,7 @@ static void fsl_edma_enable_request(struct fsl_edma_chan *fsl_chan) iowrite8(ch, regs->serq); } } +EXPORT_SYMBOL_GPL(fsl_edma_enable_request); void fsl_edma_disable_request(struct fsl_edma_chan *fsl_chan) { @@ -164,7 +165,7 @@ int fsl_edma_terminate_all(struct dma_chan *chan) LIST_HEAD(head); spin_lock_irqsave(&fsl_chan->vchan.lock, flags); - fsl_edma_disable_request(fsl_chan); + fsl_chan->edma->drvdata->dis_req(fsl_chan); fsl_chan->edesc = NULL; fsl_chan->idle = true; vchan_get_all_descriptors(&fsl_chan->vchan, &head); @@ -181,7 +182,7 @@ int fsl_edma_pause(struct dma_chan *chan) spin_lock_irqsave(&fsl_chan->vchan.lock, flags); if (fsl_chan->edesc) { - fsl_edma_disable_request(fsl_chan); + fsl_chan->edma->drvdata->dis_req(fsl_chan); fsl_chan->status = DMA_PAUSED; fsl_chan->idle = true; } @@ -197,7 +198,7 @@ int fsl_edma_resume(struct dma_chan *chan) spin_lock_irqsave(&fsl_chan->vchan.lock, flags); if (fsl_chan->edesc) { - fsl_edma_enable_request(fsl_chan); + fsl_chan->edma->drvdata->en_req(fsl_chan); fsl_chan->status = DMA_IN_PROGRESS; fsl_chan->idle = false; } @@ -596,7 +597,7 @@ void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan) return; fsl_chan->edesc = to_fsl_edma_desc(vdesc); fsl_edma_set_tcd_regs(fsl_chan, fsl_chan->edesc->tcd[0].vtcd); - fsl_edma_enable_request(fsl_chan); + fsl_chan->edma->drvdata->en_req(fsl_chan); fsl_chan->status = DMA_IN_PROGRESS; fsl_chan->idle = false; } @@ -640,7 +641,7 @@ void fsl_edma_free_chan_resources(struct dma_chan *chan) LIST_HEAD(head); spin_lock_irqsave(&fsl_chan->vchan.lock, flags); - fsl_edma_disable_request(fsl_chan); + fsl_chan->edma->drvdata->dis_req(fsl_chan); fsl_edma_chan_mux(fsl_chan, 0, false); fsl_chan->edesc = NULL; vchan_get_all_descriptors(&fsl_chan->vchan, &head); diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index ec11697..87c8d7a 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -150,6 +150,8 @@ struct fsl_edma_drvdata { bool mux_swap; int (*setup_irq)(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma); + void (*en_req)(struct fsl_edma_chan *fsl_chan); + void (*dis_req)(struct fsl_edma_chan *fsl_chan); }; struct fsl_edma_engine { @@ -222,6 +224,7 @@ static inline struct fsl_edma_desc *to_fsl_edma_desc(struct virt_dma_desc *vd) } void fsl_edma_disable_request(struct fsl_edma_chan *fsl_chan); +void fsl_edma_enable_request(struct fsl_edma_chan *fsl_chan); void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, unsigned int slot, bool enable); void fsl_edma_free_desc(struct virt_dma_desc *vdesc); diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index 90bb72a..95745636 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -83,7 +83,7 @@ static irqreturn_t fsl_edma_err_handler(int irq, void *dev_id) for (ch = 0; ch < fsl_edma->n_chans; ch++) { if (err & (0x1 << ch)) { - fsl_edma_disable_request(&fsl_edma->chans[ch]); + fsl_edma->drvdata->dis_req(&fsl_edma->chans[ch]); edma_writeb(fsl_edma, EDMA_CERR_CERR(ch), regs->cerr); fsl_edma->chans[ch].status = DMA_ERROR; fsl_edma->chans[ch].idle = true; @@ -238,6 +238,8 @@ static struct fsl_edma_drvdata vf610_data = { .version = v1, .dmamuxs = DMAMUX_NR, .setup_irq = fsl_edma_irq_init, + .en_req = fsl_edma_enable_request, + .dis_req = fsl_edma_disable_request, }; static struct fsl_edma_drvdata ls1028a_data = { @@ -245,6 +247,8 @@ static struct fsl_edma_drvdata ls1028a_data = { .dmamuxs = DMAMUX_NR, .mux_swap = true, .setup_irq = fsl_edma_irq_init, + .en_req = fsl_edma_enable_request, + .dis_req = fsl_edma_disable_request, }; static struct fsl_edma_drvdata imx7ulp_data = { @@ -252,6 +256,8 @@ static struct fsl_edma_drvdata imx7ulp_data = { .dmamuxs = 1, .has_dmaclk = true, .setup_irq = fsl_edma2_irq_init, + .en_req = fsl_edma_enable_request, + .dis_req = fsl_edma_disable_request, }; static const struct of_device_id fsl_edma_dt_ids[] = { @@ -444,7 +450,7 @@ static int fsl_edma_suspend_late(struct device *dev) /* Make sure chan is idle or will force disable. */ if (unlikely(!fsl_chan->idle)) { dev_warn(dev, "WARN: There is non-idle channel."); - fsl_edma_disable_request(fsl_chan); + fsl_edma->drvdata->dis_req(fsl_chan); fsl_edma_chan_mux(fsl_chan, 0, false); } diff --git a/drivers/dma/mcf-edma.c b/drivers/dma/mcf-edma.c index e12b754..50e6b9b 100644 --- a/drivers/dma/mcf-edma.c +++ b/drivers/dma/mcf-edma.c @@ -174,6 +174,8 @@ static void mcf_edma_irq_free(struct platform_device *pdev, static struct fsl_edma_drvdata mcf_data = { .version = v2, .setup_irq = mcf_edma_irq_init, + .en_req = fsl_edma_enable_request, + .dis_req = fsl_edma_disable_request, }; static int mcf_edma_probe(struct platform_device *pdev) -- 2.7.4