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mtd: onenand: omap2: obtain memory from resource 

gpmc initialization for onenand done by platform code now provides
onenand address space as memory resource. Hence remove usage of
gpmc_cs_request in onenand driver and obtain memory details from
resource structure.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Afzal Mohammed 2012-08-30 12:53:23 -07:00 committed by Tony Lindgren
parent 9c4c2f8b91
commit d65ccb6da6
1 changed files with 16 additions and 13 deletions
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29
drivers/mtd/onenand/omap2.c
View File

@ -48,13 +48,13 @@
#define DRIVER_NAME "omap2-onenand" #define DRIVER_NAME "omap2-onenand"
#define ONENAND_IO_SIZE SZ_128K
#define ONENAND_BUFRAM_SIZE (1024 * 5) #define ONENAND_BUFRAM_SIZE (1024 * 5)
struct omap2_onenand { struct omap2_onenand {
struct platform_device *pdev; struct platform_device *pdev;
int gpmc_cs; int gpmc_cs;
unsigned long phys_base; unsigned long phys_base;
unsigned int mem_size;
int gpio_irq; int gpio_irq;
struct mtd_info mtd; struct mtd_info mtd;
struct onenand_chip onenand; struct onenand_chip onenand;
@ -626,6 +626,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
struct omap2_onenand *c; struct omap2_onenand *c;
struct onenand_chip *this; struct onenand_chip *this;
int r; int r;
struct resource *res;
pdata = pdev->dev.platform_data; pdata = pdev->dev.platform_data;
if (pdata == NULL) { if (pdata == NULL) {
@ -647,20 +648,24 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
c->gpio_irq = 0; c->gpio_irq = 0;
} }
r = gpmc_cs_request(c->gpmc_cs, ONENAND_IO_SIZE, &c->phys_base); res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (r < 0) { if (res == NULL) {
dev_err(&pdev->dev, "Cannot request GPMC CS\n"); r = -EINVAL;
dev_err(&pdev->dev, "error getting memory resource\n");
goto err_kfree; goto err_kfree;
} }
if (request_mem_region(c->phys_base, ONENAND_IO_SIZE, c->phys_base = res->start;
c->mem_size = resource_size(res);
if (request_mem_region(c->phys_base, c->mem_size,
pdev->dev.driver->name) == NULL) { pdev->dev.driver->name) == NULL) {
dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, " dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, size: 0x%x\n",
"size: 0x%x\n", c->phys_base, ONENAND_IO_SIZE); c->phys_base, c->mem_size);
r = -EBUSY; r = -EBUSY;
goto err_free_cs; goto err_kfree;
} }
c->onenand.base = ioremap(c->phys_base, ONENAND_IO_SIZE); c->onenand.base = ioremap(c->phys_base, c->mem_size);
if (c->onenand.base == NULL) { if (c->onenand.base == NULL) {
r = -ENOMEM; r = -ENOMEM;
goto err_release_mem_region; goto err_release_mem_region;
@ -776,9 +781,7 @@ err_release_gpio:
err_iounmap: err_iounmap:
iounmap(c->onenand.base); iounmap(c->onenand.base);
err_release_mem_region: err_release_mem_region:
release_mem_region(c->phys_base, ONENAND_IO_SIZE); release_mem_region(c->phys_base, c->mem_size);
err_free_cs:
gpmc_cs_free(c->gpmc_cs);
err_kfree: err_kfree:
kfree(c); kfree(c);
@ -800,7 +803,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev)
gpio_free(c->gpio_irq); gpio_free(c->gpio_irq);
} }
iounmap(c->onenand.base); iounmap(c->onenand.base);
release_mem_region(c->phys_base, ONENAND_IO_SIZE); release_mem_region(c->phys_base, c->mem_size);
gpmc_cs_free(c->gpmc_cs); gpmc_cs_free(c->gpmc_cs);
kfree(c); kfree(c);