diff options
Diffstat (limited to 'drivers/nvmem/mtk-efuse.c')
-rw-r--r-- | drivers/nvmem/mtk-efuse.c | 47 |
1 files changed, 25 insertions, 22 deletions
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c index 32fd572e18c5..9ee3479cfc7b 100644 --- a/drivers/nvmem/mtk-efuse.c +++ b/drivers/nvmem/mtk-efuse.c @@ -18,15 +18,19 @@ #include <linux/nvmem-provider.h> #include <linux/platform_device.h> +struct mtk_efuse_priv { + void __iomem *base; +}; + static int mtk_reg_read(void *context, unsigned int reg, void *_val, size_t bytes) { - void __iomem *base = context; + struct mtk_efuse_priv *priv = context; u32 *val = _val; int i = 0, words = bytes / 4; while (words--) - *val++ = readl(base + reg + (i++ * 4)); + *val++ = readl(priv->base + reg + (i++ * 4)); return 0; } @@ -34,12 +38,12 @@ static int mtk_reg_read(void *context, static int mtk_reg_write(void *context, unsigned int reg, void *_val, size_t bytes) { - void __iomem *base = context; + struct mtk_efuse_priv *priv = context; u32 *val = _val; int i = 0, words = bytes / 4; while (words--) - writel(*val++, base + reg + (i++ * 4)); + writel(*val++, priv->base + reg + (i++ * 4)); return 0; } @@ -49,27 +53,26 @@ static int mtk_efuse_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct resource *res; struct nvmem_device *nvmem; - struct nvmem_config *econfig; - void __iomem *base; + struct nvmem_config econfig = {}; + struct mtk_efuse_priv *priv; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(dev, res); - if (IS_ERR(base)) - return PTR_ERR(base); - - econfig = devm_kzalloc(dev, sizeof(*econfig), GFP_KERNEL); - if (!econfig) + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) return -ENOMEM; - econfig->stride = 4; - econfig->word_size = 4; - econfig->reg_read = mtk_reg_read; - econfig->reg_write = mtk_reg_write; - econfig->size = resource_size(res); - econfig->priv = base; - econfig->dev = dev; - econfig->owner = THIS_MODULE; - nvmem = nvmem_register(econfig); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->base = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + + econfig.stride = 4; + econfig.word_size = 4; + econfig.reg_read = mtk_reg_read; + econfig.reg_write = mtk_reg_write; + econfig.size = resource_size(res); + econfig.priv = priv; + econfig.dev = dev; + nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); |