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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-28 18:56:37 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-28 18:56:37 -0800
commit0e47c969c65e213421450c31043353ebe3c67e0c (patch)
tree5057541fd3dc3521cb0946880d6925f1185dc7b7 /drivers/mtd/nand/sh_flctl.c
parent268943fb7529a15254a5247372119ba4bd735e94 (diff)
parent0ff76a920e3558307567b45aa0a91fb914924bfc (diff)
downloadop-kernel-dev-0e47c969c65e213421450c31043353ebe3c67e0c.zip
op-kernel-dev-0e47c969c65e213421450c31043353ebe3c67e0c.tar.gz
Merge tag 'for-linus-20140127' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris: - Add me (Brian Norris) as an additional MTD maintainer (it'd be nice to get David's "ack" for this; I'm sure he approves, but he's been pretty silent lately) - Add Ezequiel Garcie as maintainer for the pxa3xx NAND driver - Last (?) round of pxa3xx improvements for supporting Armada 370/XP - Typical churn in driver boilerplate (OOM messages, printk()'s, devm_*, etc.) - Quad read mode support for SPI NOR driver (m25p80) - Update Davinci NAND driver to prepare for use on new platforms - Begin to kill off NAND_MAX_{PAGE,OOB}SIZE macros; more work is pending - Miscellaneous NAND device support (new IDs) - Add READ RETRY support for Micron MLC NAND - Support new GPMI NAND ECC layout device-tree binding - Avoid mapping stack/vmalloc() memory for GPMI NAND DMA * tag 'for-linus-20140127' of git://git.infradead.org/linux-mtd: (151 commits) mtd: gpmi: add sanity check when mapping DMA for read_buf/write_buf mtd: gpmi: allocate a proper buffer for non ECC read/write mtd: m25p80: Set rx_nbits for Quad SPI transfers mtd: m25p80: Enable Quad SPI read transfers for s25fl512s mtd: s3c2410: Merge plat/regs-nand.h into s3c2410.c mtd: mtdram: add missing 'const' mtd: m25p80: assign default read command mtd: nuc900_nand: remove redundant return value check of platform_get_resource() mtd: plat_nand: remove redundant return value check of platform_get_resource() mtd: nand: add Intel manufacturer ID mtd: nand: add SanDisk manufacturer ID mtd: nand: add support for Samsung K9LCG08U0B mtd: nand: pxa3xx: Add support for 2048 bytes page size devices mtd: m25p80: Use OPCODE_QUAD_READ_4B for 4-byte addressing mtd: nand: don't use {read,write}_buf for 8-bit transfers mtd: nand: use __packed shorthand mtd: nand: support Micron READ RETRY mtd: nand: add generic READ RETRY support mtd: nand: add ONFI vendor block for Micron mtd: nand: localize ECC failures per page ...
Diffstat (limited to 'drivers/mtd/nand/sh_flctl.c')
-rw-r--r--drivers/mtd/nand/sh_flctl.c55
1 files changed, 14 insertions, 41 deletions
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index a3c84eb..d72783d 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -151,7 +151,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl)
dma_cap_set(DMA_SLAVE, mask);
flctl->chan_fifo0_tx = dma_request_channel(mask, shdma_chan_filter,
- (void *)pdata->slave_id_fifo0_tx);
+ (void *)(uintptr_t)pdata->slave_id_fifo0_tx);
dev_dbg(&pdev->dev, "%s: TX: got channel %p\n", __func__,
flctl->chan_fifo0_tx);
@@ -168,7 +168,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl)
goto err;
flctl->chan_fifo0_rx = dma_request_channel(mask, shdma_chan_filter,
- (void *)pdata->slave_id_fifo0_rx);
+ (void *)(uintptr_t)pdata->slave_id_fifo0_rx);
dev_dbg(&pdev->dev, "%s: RX: got channel %p\n", __func__,
flctl->chan_fifo0_rx);
@@ -1021,7 +1021,6 @@ static irqreturn_t flctl_handle_flste(int irq, void *dev_id)
return IRQ_HANDLED;
}
-#ifdef CONFIG_OF
struct flctl_soc_config {
unsigned long flcmncr_val;
unsigned has_hwecc:1;
@@ -1059,10 +1058,8 @@ static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev)
pdata = devm_kzalloc(dev, sizeof(struct sh_flctl_platform_data),
GFP_KERNEL);
- if (!pdata) {
- dev_err(dev, "%s: failed to allocate config data\n", __func__);
+ if (!pdata)
return NULL;
- }
/* set SoC specific options */
pdata->flcmncr_val = config->flcmncr_val;
@@ -1080,12 +1077,6 @@ static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev)
return pdata;
}
-#else /* CONFIG_OF */
-static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev)
-{
- return NULL;
-}
-#endif /* CONFIG_OF */
static int flctl_probe(struct platform_device *pdev)
{
@@ -1094,38 +1085,30 @@ static int flctl_probe(struct platform_device *pdev)
struct mtd_info *flctl_mtd;
struct nand_chip *nand;
struct sh_flctl_platform_data *pdata;
- int ret = -ENXIO;
+ int ret;
int irq;
struct mtd_part_parser_data ppdata = {};
- flctl = kzalloc(sizeof(struct sh_flctl), GFP_KERNEL);
- if (!flctl) {
- dev_err(&pdev->dev, "failed to allocate driver data\n");
+ flctl = devm_kzalloc(&pdev->dev, sizeof(struct sh_flctl), GFP_KERNEL);
+ if (!flctl)
return -ENOMEM;
- }
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "failed to get I/O memory\n");
- goto err_iomap;
- }
-
- flctl->reg = ioremap(res->start, resource_size(res));
- if (flctl->reg == NULL) {
- dev_err(&pdev->dev, "failed to remap I/O memory\n");
- goto err_iomap;
- }
+ flctl->reg = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(flctl->reg))
+ return PTR_ERR(flctl->reg);
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get flste irq data\n");
- goto err_flste;
+ return -ENXIO;
}
- ret = request_irq(irq, flctl_handle_flste, IRQF_SHARED, "flste", flctl);
+ ret = devm_request_irq(&pdev->dev, irq, flctl_handle_flste, IRQF_SHARED,
+ "flste", flctl);
if (ret) {
dev_err(&pdev->dev, "request interrupt failed.\n");
- goto err_flste;
+ return ret;
}
if (pdev->dev.of_node)
@@ -1135,8 +1118,7 @@ static int flctl_probe(struct platform_device *pdev)
if (!pdata) {
dev_err(&pdev->dev, "no setup data defined\n");
- ret = -EINVAL;
- goto err_pdata;
+ return -EINVAL;
}
platform_set_drvdata(pdev, flctl);
@@ -1190,12 +1172,6 @@ static int flctl_probe(struct platform_device *pdev)
err_chip:
flctl_release_dma(flctl);
pm_runtime_disable(&pdev->dev);
-err_pdata:
- free_irq(irq, flctl);
-err_flste:
- iounmap(flctl->reg);
-err_iomap:
- kfree(flctl);
return ret;
}
@@ -1206,9 +1182,6 @@ static int flctl_remove(struct platform_device *pdev)
flctl_release_dma(flctl);
nand_release(&flctl->mtd);
pm_runtime_disable(&pdev->dev);
- free_irq(platform_get_irq(pdev, 0), flctl);
- iounmap(flctl->reg);
- kfree(flctl);
return 0;
}
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