dmaengine: pl330: remove pdata based initialization
This driver is now used only on platforms which support device tree, so it is safe to remove legacy platform data based initialization code. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> For plat-samsung: Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Marek Szyprowski
Vinod Koul
Родитель
c1ae3cfa0e
Коммит
e8bb467359
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@ -10,7 +10,6 @@
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* published by the Free Software Foundation.
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*/
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#include <linux/amba/pl330.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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@ -22,7 +22,6 @@
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#include <linux/dma-mapping.h>
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#include <linux/dmaengine.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/pl330.h>
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#include <linux/scatterlist.h>
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#include <linux/of.h>
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#include <linux/of_dma.h>
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@ -2077,18 +2076,6 @@ static void pl330_tasklet(unsigned long data)
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}
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}
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bool pl330_filter(struct dma_chan *chan, void *param)
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{
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u8 *peri_id;
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if (chan->device->dev->driver != &pl330_driver.drv)
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return false;
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peri_id = chan->private;
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return *peri_id == (unsigned long)param;
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}
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EXPORT_SYMBOL(pl330_filter);
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static struct dma_chan *of_dma_pl330_xlate(struct of_phandle_args *dma_spec,
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struct of_dma *ofdma)
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{
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@ -2833,7 +2820,6 @@ static SIMPLE_DEV_PM_OPS(pl330_pm, pl330_suspend, pl330_resume);
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static int
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pl330_probe(struct amba_device *adev, const struct amba_id *id)
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{
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struct dma_pl330_platdata *pdat;
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struct pl330_config *pcfg;
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struct pl330_dmac *pl330;
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struct dma_pl330_chan *pch, *_p;
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@ -2843,8 +2829,6 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
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int num_chan;
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struct device_node *np = adev->dev.of_node;
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pdat = dev_get_platdata(&adev->dev);
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ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32));
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if (ret)
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return ret;
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@ -2857,7 +2841,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
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pd = &pl330->ddma;
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pd->dev = &adev->dev;
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pl330->mcbufsz = pdat ? pdat->mcbuf_sz : 0;
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pl330->mcbufsz = 0;
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/* get quirk */
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for (i = 0; i < ARRAY_SIZE(of_quirks); i++)
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@ -2901,10 +2885,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
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INIT_LIST_HEAD(&pd->channels);
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/* Initialize channel parameters */
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if (pdat)
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num_chan = max_t(int, pdat->nr_valid_peri, pcfg->num_chan);
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else
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num_chan = max_t(int, pcfg->num_peri, pcfg->num_chan);
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num_chan = max_t(int, pcfg->num_peri, pcfg->num_chan);
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pl330->num_peripherals = num_chan;
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@ -2916,11 +2897,8 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
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for (i = 0; i < num_chan; i++) {
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pch = &pl330->peripherals[i];
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if (!adev->dev.of_node)
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pch->chan.private = pdat ? &pdat->peri_id[i] : NULL;
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else
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pch->chan.private = adev->dev.of_node;
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pch->chan.private = adev->dev.of_node;
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INIT_LIST_HEAD(&pch->submitted_list);
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INIT_LIST_HEAD(&pch->work_list);
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INIT_LIST_HEAD(&pch->completed_list);
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@ -2933,15 +2911,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
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list_add_tail(&pch->chan.device_node, &pd->channels);
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}
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if (pdat) {
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pd->cap_mask = pdat->cap_mask;
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} else {
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dma_cap_set(DMA_MEMCPY, pd->cap_mask);
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if (pcfg->num_peri) {
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dma_cap_set(DMA_SLAVE, pd->cap_mask);
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dma_cap_set(DMA_CYCLIC, pd->cap_mask);
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dma_cap_set(DMA_PRIVATE, pd->cap_mask);
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}
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dma_cap_set(DMA_MEMCPY, pd->cap_mask);
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if (pcfg->num_peri) {
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dma_cap_set(DMA_SLAVE, pd->cap_mask);
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dma_cap_set(DMA_CYCLIC, pd->cap_mask);
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dma_cap_set(DMA_PRIVATE, pd->cap_mask);
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}
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pd->device_alloc_chan_resources = pl330_alloc_chan_resources;
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@ -1,35 +0,0 @@
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/* linux/include/linux/amba/pl330.h
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*
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* Copyright (C) 2010 Samsung Electronics Co. Ltd.
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* Jaswinder Singh <jassi.brar@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __AMBA_PL330_H_
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#define __AMBA_PL330_H_
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#include <linux/dmaengine.h>
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struct dma_pl330_platdata {
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/*
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* Number of valid peripherals connected to DMAC.
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* This may be different from the value read from
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* CR0, as the PL330 implementation might have 'holes'
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* in the peri list or the peri could also be reached
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* from another DMAC which the platform prefers.
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*/
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u8 nr_valid_peri;
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/* Array of valid peripherals */
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u8 *peri_id;
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/* Operational capabilities */
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dma_cap_mask_t cap_mask;
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/* Bytes to allocate for MC buffer */
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unsigned mcbuf_sz;
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};
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extern bool pl330_filter(struct dma_chan *chan, void *param);
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#endif /* __AMBA_PL330_H_ */
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