From bb160502a45440d2b52c189d5a81365c01b8d494 Mon Sep 17 00:00:00 2001 From: Frank Li Date: Mon, 3 Jun 2024 11:23:16 -0400 Subject: [PATCH] dmaengine: fsl-edma: remove redundant "idle" field from fsl_chan The 'idle' in fsl_chan is redundant as it's equivalent to 'status != DMA_IN_PROGRESS'. So remote it to simple code logic. Signed-off-by: Frank Li Link: https://lore.kernel.org/r/20240603152317.69917-2-Frank.Li@nxp.com Signed-off-by: Vinod Koul --- drivers/dma/fsl-edma-common.c | 6 +----- drivers/dma/fsl-edma-common.h | 2 -- drivers/dma/fsl-edma-main.c | 3 +-- drivers/dma/mcf-edma-main.c | 2 -- 4 files changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 99107c08f9bf..9d565ab85502 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -59,7 +59,6 @@ void fsl_edma_tx_chan_handler(struct fsl_edma_chan *fsl_chan) vchan_cookie_complete(&fsl_chan->edesc->vdesc); fsl_chan->edesc = NULL; fsl_chan->status = DMA_COMPLETE; - fsl_chan->idle = true; } else { vchan_cyclic_callback(&fsl_chan->edesc->vdesc); } @@ -239,7 +238,7 @@ int fsl_edma_terminate_all(struct dma_chan *chan) spin_lock_irqsave(&fsl_chan->vchan.lock, flags); fsl_edma_disable_request(fsl_chan); fsl_chan->edesc = NULL; - fsl_chan->idle = true; + fsl_chan->status = DMA_COMPLETE; vchan_get_all_descriptors(&fsl_chan->vchan, &head); spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags); vchan_dma_desc_free_list(&fsl_chan->vchan, &head); @@ -259,7 +258,6 @@ int fsl_edma_pause(struct dma_chan *chan) if (fsl_chan->edesc) { fsl_edma_disable_request(fsl_chan); fsl_chan->status = DMA_PAUSED; - fsl_chan->idle = true; } spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags); return 0; @@ -274,7 +272,6 @@ int fsl_edma_resume(struct dma_chan *chan) if (fsl_chan->edesc) { fsl_edma_enable_request(fsl_chan); fsl_chan->status = DMA_IN_PROGRESS; - fsl_chan->idle = false; } spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags); return 0; @@ -780,7 +777,6 @@ void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan) fsl_edma_set_tcd_regs(fsl_chan, fsl_chan->edesc->tcd[0].vtcd); fsl_edma_enable_request(fsl_chan); fsl_chan->status = DMA_IN_PROGRESS; - fsl_chan->idle = false; } void fsl_edma_issue_pending(struct dma_chan *chan) diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index 8dc6e09ecc83..1c90b95f4ff8 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -150,7 +150,6 @@ struct fsl_edma_chan { struct virt_dma_chan vchan; enum dma_status status; enum fsl_edma_pm_state pm_state; - bool idle; struct fsl_edma_engine *edma; struct fsl_edma_desc *edesc; struct dma_slave_config cfg; @@ -456,7 +455,6 @@ static inline struct fsl_edma_desc *to_fsl_edma_desc(struct virt_dma_desc *vd) static inline void fsl_edma_err_chan_handler(struct fsl_edma_chan *fsl_chan) { fsl_chan->status = DMA_ERROR; - fsl_chan->idle = true; } void fsl_edma_tx_chan_handler(struct fsl_edma_chan *fsl_chan); diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 346a501ab3fd..ec4f5baafad5 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -544,7 +544,6 @@ static int fsl_edma_probe(struct platform_device *pdev) fsl_chan->edma = fsl_edma; fsl_chan->pm_state = RUNNING; fsl_chan->srcid = 0; - fsl_chan->idle = true; fsl_chan->dma_dir = DMA_NONE; fsl_chan->vchan.desc_free = fsl_edma_free_desc; @@ -669,7 +668,7 @@ static int fsl_edma_suspend_late(struct device *dev) continue; spin_lock_irqsave(&fsl_chan->vchan.lock, flags); /* Make sure chan is idle or will force disable. */ - if (unlikely(!fsl_chan->idle)) { + if (unlikely(fsl_chan->status == DMA_IN_PROGRESS)) { dev_warn(dev, "WARN: There is non-idle channel."); fsl_edma_disable_request(fsl_chan); fsl_edma_chan_mux(fsl_chan, 0, false); diff --git a/drivers/dma/mcf-edma-main.c b/drivers/dma/mcf-edma-main.c index 78c606f6d002..0c5862bf26f8 100644 --- a/drivers/dma/mcf-edma-main.c +++ b/drivers/dma/mcf-edma-main.c @@ -64,7 +64,6 @@ static irqreturn_t mcf_edma_err_handler(int irq, void *dev_id) fsl_edma_disable_request(&mcf_edma->chans[ch]); iowrite8(EDMA_CERR_CERR(ch), regs->cerr); mcf_edma->chans[ch].status = DMA_ERROR; - mcf_edma->chans[ch].idle = true; } } @@ -196,7 +195,6 @@ static int mcf_edma_probe(struct platform_device *pdev) mcf_chan->edma = mcf_edma; mcf_chan->srcid = i; - mcf_chan->idle = true; mcf_chan->dma_dir = DMA_NONE; mcf_chan->vchan.desc_free = fsl_edma_free_desc; vchan_init(&mcf_chan->vchan, &mcf_edma->dma_dev);