From: Frank Li <Frank.Li@nxp.com>
To: Vinod Koul <vkoul@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>, Peng Fan <peng.fan@nxp.com>
Cc: imx@lists.linux.dev, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Frank Li <Frank.Li@nxp.com>
Subject: [PATCH 1/5] dmaengine: fsl-edma: remove 'slave_id' from fsl_edma_chan
Date: Tue, 27 Feb 2024 12:21:53 -0500 [thread overview]
Message-ID: <20240227-8ulp_edma-v1-1-7fcfe1e265c2@nxp.com> (raw)
In-Reply-To: <20240227-8ulp_edma-v1-0-7fcfe1e265c2@nxp.com>
The 'slave_id' field is redundant as it duplicates the functionality of
'srcid'. Remove 'slave_id' from fsl_edma_chan to eliminate redundancy.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
drivers/dma/fsl-edma-common.h | 1 -
drivers/dma/fsl-edma-main.c | 10 +++++-----
2 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h
index 7bf0aba471a8c..4cf1de9f0e512 100644
--- a/drivers/dma/fsl-edma-common.h
+++ b/drivers/dma/fsl-edma-common.h
@@ -151,7 +151,6 @@ struct fsl_edma_chan {
enum dma_status status;
enum fsl_edma_pm_state pm_state;
bool idle;
- u32 slave_id;
struct fsl_edma_engine *edma;
struct fsl_edma_desc *edesc;
struct dma_slave_config cfg;
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index 402f0058a180c..0a6e0c4040274 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -114,8 +114,8 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec,
if (chan) {
chan->device->privatecnt++;
fsl_chan = to_fsl_edma_chan(chan);
- fsl_chan->slave_id = dma_spec->args[1];
- fsl_edma_chan_mux(fsl_chan, fsl_chan->slave_id,
+ fsl_chan->srcid = dma_spec->args[1];
+ fsl_edma_chan_mux(fsl_chan, fsl_chan->srcid,
true);
mutex_unlock(&fsl_edma->fsl_edma_mutex);
return chan;
@@ -540,7 +540,7 @@ static int fsl_edma_probe(struct platform_device *pdev)
fsl_chan->edma = fsl_edma;
fsl_chan->pm_state = RUNNING;
- fsl_chan->slave_id = 0;
+ fsl_chan->srcid = 0;
fsl_chan->idle = true;
fsl_chan->dma_dir = DMA_NONE;
fsl_chan->vchan.desc_free = fsl_edma_free_desc;
@@ -682,8 +682,8 @@ static int fsl_edma_resume_early(struct device *dev)
continue;
fsl_chan->pm_state = RUNNING;
edma_write_tcdreg(fsl_chan, 0, csr);
- if (fsl_chan->slave_id != 0)
- fsl_edma_chan_mux(fsl_chan, fsl_chan->slave_id, true);
+ if (fsl_chan->srcid != 0)
+ fsl_edma_chan_mux(fsl_chan, fsl_chan->srcid, true);
}
if (!(fsl_edma->drvdata->flags & FSL_EDMA_DRV_SPLIT_REG))
--
2.34.1
next prev parent reply other threads:[~2024-02-27 17:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-27 17:21 [PATCH 0/5] dmaengine: fsl-edma: add 8ulp support Frank Li
2024-02-27 17:21 ` Frank Li [this message]
2024-02-29 14:08 ` [PATCH 1/5] dmaengine: fsl-edma: remove 'slave_id' from fsl_edma_chan kernel test robot
2024-02-29 19:08 ` kernel test robot
2024-02-27 17:21 ` [PATCH 2/5] dmaengine: fsl-edma: add safety check for 'srcid' Frank Li
2024-02-27 17:21 ` [PATCH 3/5] dmaengine: fsl-edma: clean up chclk and FSL_EDMA_DRV_HAS_CHCLK Frank Li
2024-02-27 17:21 ` [PATCH 4/5] dt-bindings: fsl-dma: fsl-edma: add fsl,imx8ulp-edma compatible string Frank Li
2024-02-29 9:49 ` Krzysztof Kozlowski
2024-02-29 15:54 ` Frank Li
2024-02-29 15:58 ` Krzysztof Kozlowski
2024-02-29 16:03 ` Frank Li
2024-02-27 17:21 ` [PATCH 5/5] dmaengine: fsl-edma: add i.MX8ULP edma support Frank Li
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