diff options
Diffstat (limited to 'drivers/nvmem/rockchip-efuse.c')
| -rw-r--r-- | drivers/nvmem/rockchip-efuse.c | 49 |
1 files changed, 9 insertions, 40 deletions
diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c index a00979511..4d3f391f0 100644 --- a/drivers/nvmem/rockchip-efuse.c +++ b/drivers/nvmem/rockchip-efuse.c @@ -23,7 +23,6 @@ #include <linux/slab.h> #include <linux/of.h> #include <linux/platform_device.h> -#include <linux/regmap.h> #define EFUSE_A_SHIFT 6 #define EFUSE_A_MASK 0x3ff @@ -41,17 +40,9 @@ struct rockchip_efuse_chip { struct clk *clk; }; -static int rockchip_efuse_write(void *context, const void *data, size_t count) +static int rockchip_efuse_read(void *context, unsigned int offset, + void *val, size_t bytes) { - /* Nothing TBD, Read-Only */ - return 0; -} - -static int rockchip_efuse_read(void *context, - const void *reg, size_t reg_size, - void *val, size_t val_size) -{ - unsigned int offset = *(u32 *)reg; struct rockchip_efuse_chip *efuse = context; u8 *buf = val; int ret; @@ -64,12 +55,12 @@ static int rockchip_efuse_read(void *context, writel(EFUSE_LOAD | EFUSE_PGENB, efuse->base + REG_EFUSE_CTRL); udelay(1); - while (val_size) { + while (bytes--) { writel(readl(efuse->base + REG_EFUSE_CTRL) & (~(EFUSE_A_MASK << EFUSE_A_SHIFT)), efuse->base + REG_EFUSE_CTRL); writel(readl(efuse->base + REG_EFUSE_CTRL) | - ((offset & EFUSE_A_MASK) << EFUSE_A_SHIFT), + ((offset++ & EFUSE_A_MASK) << EFUSE_A_SHIFT), efuse->base + REG_EFUSE_CTRL); udelay(1); writel(readl(efuse->base + REG_EFUSE_CTRL) | @@ -79,9 +70,6 @@ static int rockchip_efuse_read(void *context, writel(readl(efuse->base + REG_EFUSE_CTRL) & (~EFUSE_STROBE), efuse->base + REG_EFUSE_CTRL); udelay(1); - - val_size -= 1; - offset += 1; } /* Switch to standby mode */ @@ -92,22 +80,11 @@ static int rockchip_efuse_read(void *context, return 0; } -static struct regmap_bus rockchip_efuse_bus = { - .read = rockchip_efuse_read, - .write = rockchip_efuse_write, - .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, -}; - -static struct regmap_config rockchip_efuse_regmap_config = { - .reg_bits = 32, - .reg_stride = 1, - .val_bits = 8, -}; - static struct nvmem_config econfig = { .name = "rockchip-efuse", .owner = THIS_MODULE, + .stride = 1, + .word_size = 1, .read_only = true, }; @@ -121,7 +98,6 @@ static int rockchip_efuse_probe(struct platform_device *pdev) { struct resource *res; struct nvmem_device *nvmem; - struct regmap *regmap; struct rockchip_efuse_chip *efuse; efuse = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_efuse_chip), @@ -139,16 +115,9 @@ static int rockchip_efuse_probe(struct platform_device *pdev) return PTR_ERR(efuse->clk); efuse->dev = &pdev->dev; - - rockchip_efuse_regmap_config.max_register = resource_size(res) - 1; - - regmap = devm_regmap_init(efuse->dev, &rockchip_efuse_bus, - efuse, &rockchip_efuse_regmap_config); - if (IS_ERR(regmap)) { - dev_err(efuse->dev, "regmap init failed\n"); - return PTR_ERR(regmap); - } - + econfig.size = resource_size(res); + econfig.reg_read = rockchip_efuse_read; + econfig.priv = efuse; econfig.dev = efuse->dev; nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) |