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yaml
---
r: 332684
b: refs/heads/master
c: 9c6f62a
h: refs/heads/master
v: v3
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Roland Stigge authored and David Woodhouse committed Sep 29, 2012
1 parent 9eca118 commit ee27f81
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Showing 3 changed files with 32 additions and 3 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: de20c22d2bf41f970a6300a89dd550f12121c126
refs/heads/master: 9c6f62a7ef230253a7dfc0547c431f07d8a64721
13 changes: 11 additions & 2 deletions trunk/drivers/mtd/nand/lpc32xx_mlc.c
Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,7 @@
#include <linux/of.h>
#include <linux/of_mtd.h>
#include <linux/of_gpio.h>
#include <linux/amba/pl08x.h>
#include <linux/mtd/lpc32xx_mlc.h>
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
Expand Down Expand Up @@ -171,6 +171,7 @@ static struct nand_bbt_descr lpc32xx_nand_bbt_mirror = {

struct lpc32xx_nand_host {
struct nand_chip nand_chip;
struct lpc32xx_mlc_platform_data *pdata;
struct clk *clk;
struct mtd_info mtd;
void __iomem *io_base;
Expand Down Expand Up @@ -581,9 +582,15 @@ static int lpc32xx_dma_setup(struct lpc32xx_nand_host *host)
struct mtd_info *mtd = &host->mtd;
dma_cap_mask_t mask;

if (!host->pdata || !host->pdata->dma_filter) {
dev_err(mtd->dev.parent, "no DMA platform data\n");
return -ENOENT;
}

dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_chan = dma_request_channel(mask, pl08x_filter_id, "nand-mlc");
host->dma_chan = dma_request_channel(mask, host->pdata->dma_filter,
"nand-mlc");
if (!host->dma_chan) {
dev_err(mtd->dev.parent, "Failed to request DMA channel\n");
return -EBUSY;
Expand Down Expand Up @@ -703,6 +710,8 @@ static int __devinit lpc32xx_nand_probe(struct platform_device *pdev)
}
lpc32xx_wp_disable(host);

host->pdata = pdev->dev.platform_data;

nand_chip->priv = host; /* link the private data structures */
mtd->priv = nand_chip;
mtd->owner = THIS_MODULE;
Expand Down
20 changes: 20 additions & 0 deletions trunk/include/linux/mtd/lpc32xx_mlc.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
/*
* Platform data for LPC32xx SoC MLC NAND controller
*
* Copyright © 2012 Roland Stigge
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/

#ifndef __LINUX_MTD_LPC32XX_MLC_H
#define __LINUX_MTD_LPC32XX_MLC_H

#include <linux/dmaengine.h>

struct lpc32xx_mlc_platform_data {
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
};

#endif /* __LINUX_MTD_LPC32XX_MLC_H */

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