From 3a14c66d43d018baed96ceb74f9ab548878c09b8 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 27 Apr 2016 14:15:40 +0300 Subject: dmaengine: dw: pass platform data via struct dw_dma_chip We pass struct dw_dma_chip to dw_dma_probe() anyway, thus we may use it to pass a platform data as well. While here, constify the source of the platform data. Acked-by: Viresh Kumar Signed-off-by: Andy Shevchenko Signed-off-by: Vinod Koul --- drivers/dma/dw/core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/dma/dw/core.c') diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index 30843a17b438..edf053f73a49 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -1439,8 +1439,9 @@ EXPORT_SYMBOL(dw_dma_cyclic_free); /*----------------------------------------------------------------------*/ -int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata) +int dw_dma_probe(struct dw_dma_chip *chip) { + struct dw_dma_platform_data *pdata; struct dw_dma *dw; bool autocfg = false; unsigned int dw_params; @@ -1460,7 +1461,7 @@ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata) pm_runtime_get_sync(chip->dev); - if (!pdata) { + if (!chip->pdata) { dw_params = dma_readl(dw, DW_PARAMS); dev_dbg(chip->dev, "DW_PARAMS: 0x%08x\n", dw_params); @@ -1487,11 +1488,11 @@ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata) pdata->is_memcpy = true; pdata->chan_allocation_order = CHAN_ALLOCATION_ASCENDING; pdata->chan_priority = CHAN_PRIORITY_ASCENDING; - } else if (pdata->nr_channels > DW_DMA_MAX_NR_CHANNELS) { + } else if (chip->pdata->nr_channels > DW_DMA_MAX_NR_CHANNELS) { err = -EINVAL; goto err_pdata; } else { - memcpy(dw->pdata, pdata, sizeof(*dw->pdata)); + memcpy(dw->pdata, chip->pdata, sizeof(*dw->pdata)); /* Reassign the platform data pointer */ pdata = dw->pdata; -- cgit v1.2.3