diff options
Diffstat (limited to 'drivers/uio/uio_pruss.c')
| -rw-r--r-- | drivers/uio/uio_pruss.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c index 33a7a273b45..96c4a19b191 100644 --- a/drivers/uio/uio_pruss.c +++ b/drivers/uio/uio_pruss.c @@ -25,7 +25,7 @@ #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/slab.h> -#include <mach/sram.h> +#include <linux/genalloc.h> #define DRV_NAME "pruss_uio" #define DRV_VERSION "1.0" @@ -65,10 +65,11 @@ struct uio_pruss_dev { dma_addr_t sram_paddr; dma_addr_t ddr_paddr; void __iomem *prussio_vaddr; - void *sram_vaddr; + unsigned long sram_vaddr; void *ddr_vaddr; unsigned int hostirq_start; unsigned int pintc_base; + struct gen_pool *sram_pool; }; static irqreturn_t pruss_handler(int irq, struct uio_info *info) @@ -106,19 +107,21 @@ static void pruss_cleanup(struct platform_device *dev, gdev->ddr_paddr); } if (gdev->sram_vaddr) - sram_free(gdev->sram_vaddr, sram_pool_sz); + gen_pool_free(gdev->sram_pool, + gdev->sram_vaddr, + sram_pool_sz); kfree(gdev->info); clk_put(gdev->pruss_clk); kfree(gdev); } -static int __devinit pruss_probe(struct platform_device *dev) +static int pruss_probe(struct platform_device *dev) { struct uio_info *p; struct uio_pruss_dev *gdev; struct resource *regs_prussio; int ret = -ENODEV, cnt = 0, len; - struct uio_pruss_pdata *pdata = dev->dev.platform_data; + struct uio_pruss_pdata *pdata = dev_get_platdata(&dev->dev); gdev = kzalloc(sizeof(struct uio_pruss_dev), GFP_KERNEL); if (!gdev) @@ -133,9 +136,9 @@ static int __devinit pruss_probe(struct platform_device *dev) gdev->pruss_clk = clk_get(&dev->dev, "pruss"); if (IS_ERR(gdev->pruss_clk)) { dev_err(&dev->dev, "Failed to get clock\n"); + ret = PTR_ERR(gdev->pruss_clk); kfree(gdev->info); kfree(gdev); - ret = PTR_ERR(gdev->pruss_clk); return ret; } else { clk_enable(gdev->pruss_clk); @@ -152,10 +155,15 @@ static int __devinit pruss_probe(struct platform_device *dev) goto out_free; } - gdev->sram_vaddr = sram_alloc(sram_pool_sz, &(gdev->sram_paddr)); - if (!gdev->sram_vaddr) { - dev_err(&dev->dev, "Could not allocate SRAM pool\n"); - goto out_free; + if (pdata->sram_pool) { + gdev->sram_pool = pdata->sram_pool; + gdev->sram_vaddr = + (unsigned long)gen_pool_dma_alloc(gdev->sram_pool, + sram_pool_sz, &gdev->sram_paddr); + if (!gdev->sram_vaddr) { + dev_err(&dev->dev, "Could not allocate SRAM pool\n"); + goto out_free; + } } gdev->ddr_vaddr = dma_alloc_coherent(&dev->dev, extram_pool_sz, @@ -209,18 +217,17 @@ out_free: return ret; } -static int __devexit pruss_remove(struct platform_device *dev) +static int pruss_remove(struct platform_device *dev) { struct uio_pruss_dev *gdev = platform_get_drvdata(dev); pruss_cleanup(dev, gdev); - platform_set_drvdata(dev, NULL); return 0; } static struct platform_driver pruss_driver = { .probe = pruss_probe, - .remove = __devexit_p(pruss_remove), + .remove = pruss_remove, .driver = { .name = DRV_NAME, .owner = THIS_MODULE, |