diff options
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/nvmem/core.c | 67 | ||||
| -rw-r--r-- | drivers/nvmem/imx-ocotp.c | 55 | ||||
| -rw-r--r-- | drivers/nvmem/lpc18xx_eeprom.c | 94 | ||||
| -rw-r--r-- | drivers/nvmem/qfprom.c | 56 | ||||
| -rw-r--r-- | drivers/nvmem/rockchip-efuse.c | 49 | ||||
| -rw-r--r-- | drivers/nvmem/sunxi_sid.c | 54 | ||||
| -rw-r--r-- | drivers/nvmem/vf610-ocotp.c | 44 |
8 files changed, 144 insertions, 280 deletions
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index ca52952d850f..3041d48e7155 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -1,6 +1,5 @@ menuconfig NVMEM tristate "NVMEM Support" - select REGMAP help Support for NVMEM(Non Volatile Memory) devices like EEPROM, EFUSES... @@ -28,6 +27,7 @@ config NVMEM_IMX_OCOTP config NVMEM_LPC18XX_EEPROM tristate "NXP LPC18XX EEPROM Memory Support" depends on ARCH_LPC18XX || COMPILE_TEST + depends on HAS_IOMEM help Say Y here to include support for NXP LPC18xx EEPROM memory found in NXP LPC185x/3x and LPC435x/3x/2x/1x devices. @@ -49,6 +49,7 @@ config NVMEM_MXS_OCOTP config MTK_EFUSE tristate "Mediatek SoCs EFUSE support" depends on ARCH_MEDIATEK || COMPILE_TEST + depends on HAS_IOMEM select REGMAP_MMIO help This is a driver to access hardware related data like sensor @@ -61,7 +62,6 @@ config QCOM_QFPROM tristate "QCOM QFPROM Support" depends on ARCH_QCOM || COMPILE_TEST depends on HAS_IOMEM - select REGMAP_MMIO help Say y here to enable QFPROM support. The QFPROM provides access functions for QFPROM data to rest of the drivers via nvmem interface. @@ -83,7 +83,6 @@ config ROCKCHIP_EFUSE config NVMEM_SUNXI_SID tristate "Allwinner SoCs SID support" depends on ARCH_SUNXI - select REGMAP_MMIO help This is a driver for the 'security ID' available on various Allwinner devices. diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 0de3d878c439..bb4ea123547f 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -23,12 +23,10 @@ #include <linux/nvmem-consumer.h> #include <linux/nvmem-provider.h> #include <linux/of.h> -#include <linux/regmap.h> #include <linux/slab.h> struct nvmem_device { const char *name; - struct regmap *regmap; struct module *owner; struct device dev; int stride; @@ -41,6 +39,9 @@ struct nvmem_device { int flags; struct bin_attribute eeprom; struct device *base_dev; + nvmem_reg_read_t reg_read; + nvmem_reg_write_t reg_write; + void *priv; }; #define FLAG_COMPAT BIT(0) @@ -66,6 +67,23 @@ static struct lock_class_key eeprom_lock_key; #endif #define to_nvmem_device(d) container_of(d, struct nvmem_device, dev) +static int nvmem_reg_read(struct nvmem_device *nvmem, unsigned int offset, + void *val, size_t bytes) +{ + if (nvmem->reg_read) + return nvmem->reg_read(nvmem->priv, offset, val, bytes); + + return -EINVAL; +} + +static int nvmem_reg_write(struct nvmem_device *nvmem, unsigned int offset, + void *val, size_t bytes) +{ + if (nvmem->reg_write) + return nvmem->reg_write(nvmem->priv, offset, val, bytes); + + return -EINVAL; +} static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, @@ -93,7 +111,7 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj, count = round_down(count, nvmem->word_size); - rc = regmap_raw_read(nvmem->regmap, pos, buf, count); + rc = nvmem_reg_read(nvmem, pos, buf, count); if (IS_ERR_VALUE(rc)) return rc; @@ -127,7 +145,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj, count = round_down(count, nvmem->word_size); - rc = regmap_raw_write(nvmem->regmap, pos, buf, count); + rc = nvmem_reg_write(nvmem, pos, buf, count); if (IS_ERR_VALUE(rc)) return rc; @@ -421,18 +439,11 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) { struct nvmem_device *nvmem; struct device_node *np; - struct regmap *rm; int rval; if (!config->dev) return ERR_PTR(-EINVAL); - rm = dev_get_regmap(config->dev, NULL); - if (!rm) { - dev_err(config->dev, "Regmap not found\n"); - return ERR_PTR(-EINVAL); - } - nvmem = kzalloc(sizeof(*nvmem), GFP_KERNEL); if (!nvmem) return ERR_PTR(-ENOMEM); @@ -444,14 +455,16 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) } nvmem->id = rval; - nvmem->regmap = rm; nvmem->owner = config->owner; - nvmem->stride = regmap_get_reg_stride(rm); - nvmem->word_size = regmap_get_val_bytes(rm); - nvmem->size = regmap_get_max_register(rm) + nvmem->stride; + nvmem->stride = config->stride; + nvmem->word_size = config->word_size; + nvmem->size = config->size; nvmem->dev.type = &nvmem_provider_type; nvmem->dev.bus = &nvmem_bus_type; nvmem->dev.parent = config->dev; + nvmem->priv = config->priv; + nvmem->reg_read = config->reg_read; + nvmem->reg_write = config->reg_write; np = config->dev->of_node; nvmem->dev.of_node = np; dev_set_name(&nvmem->dev, "%s%d", @@ -948,7 +961,7 @@ static int __nvmem_cell_read(struct nvmem_device *nvmem, { int rc; - rc = regmap_raw_read(nvmem->regmap, cell->offset, buf, cell->bytes); + rc = nvmem_reg_read(nvmem, cell->offset, buf, cell->bytes); if (IS_ERR_VALUE(rc)) return rc; @@ -977,7 +990,7 @@ void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len) u8 *buf; int rc; - if (!nvmem || !nvmem->regmap) + if (!nvmem) return ERR_PTR(-EINVAL); buf = kzalloc(cell->bytes, GFP_KERNEL); @@ -1014,7 +1027,7 @@ static inline void *nvmem_cell_prepare_write_buffer(struct nvmem_cell *cell, *b <<= bit_offset; /* setup the first byte with lsb bits from nvmem */ - rc = regmap_raw_read(nvmem->regmap, cell->offset, &v, 1); + rc = nvmem_reg_read(nvmem, cell->offset, &v, 1); *b++ |= GENMASK(bit_offset - 1, 0) & v; /* setup rest of the byte if any */ @@ -1031,7 +1044,7 @@ static inline void *nvmem_cell_prepare_write_buffer(struct nvmem_cell *cell, /* if it's not end on byte boundary */ if ((nbits + bit_offset) % BITS_PER_BYTE) { /* setup the last byte with msb bits from nvmem */ - rc = regmap_raw_read(nvmem->regmap, + rc = nvmem_reg_read(nvmem, cell->offset + cell->bytes - 1, &v, 1); *p |= GENMASK(7, (nbits + bit_offset) % BITS_PER_BYTE) & v; @@ -1054,7 +1067,7 @@ int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len) struct nvmem_device *nvmem = cell->nvmem; int rc; - if (!nvmem || !nvmem->regmap || nvmem->read_only || + if (!nvmem || nvmem->read_only || (cell->bit_offset == 0 && len != cell->bytes)) return -EINVAL; @@ -1064,7 +1077,7 @@ int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len) return PTR_ERR(buf); } - rc = regmap_raw_write(nvmem->regmap, cell->offset, buf, cell->bytes); + rc = nvmem_reg_write(nvmem, cell->offset, buf, cell->bytes); /* free the tmp buffer */ if (cell->bit_offset || cell->nbits) @@ -1094,7 +1107,7 @@ ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem, int rc; ssize_t len; - if (!nvmem || !nvmem->regmap) + if (!nvmem) return -EINVAL; rc = nvmem_cell_info_to_nvmem_cell(nvmem, info, &cell); @@ -1124,7 +1137,7 @@ int nvmem_device_cell_write(struct nvmem_device *nvmem, struct nvmem_cell cell; int rc; - if (!nvmem || !nvmem->regmap) + if (!nvmem) return -EINVAL; rc = nvmem_cell_info_to_nvmem_cell(nvmem, info, &cell); @@ -1152,10 +1165,10 @@ int nvmem_device_read(struct nvmem_device *nvmem, { int rc; - if (!nvmem || !nvmem->regmap) + if (!nvmem) return -EINVAL; - rc = regmap_raw_read(nvmem->regmap, offset, buf, bytes); + rc = nvmem_reg_read(nvmem, offset, buf, bytes); if (IS_ERR_VALUE(rc)) return rc; @@ -1180,10 +1193,10 @@ int nvmem_device_write(struct nvmem_device *nvmem, { int rc; - if (!nvmem || !nvmem->regmap) + if (!nvmem) return -EINVAL; - rc = regmap_raw_write(nvmem->regmap, offset, buf, bytes); + rc = nvmem_reg_write(nvmem, offset, buf, bytes); if (IS_ERR_VALUE(rc)) return rc; diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index d7796eb5421f..75e66ef5b0ec 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -22,7 +22,6 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> -#include <linux/regmap.h> #include <linux/slab.h> struct ocotp_priv { @@ -31,59 +30,34 @@ struct ocotp_priv { unsigned int nregs; }; -static int imx_ocotp_read(void *context, const void *reg, size_t reg_size, - void *val, size_t val_size) +static int imx_ocotp_read(void *context, unsigned int offset, + void *val, size_t bytes) { struct ocotp_priv *priv = context; - unsigned int offset = *(u32 *)reg; unsigned int count; + u32 *buf = val; int i; u32 index; index = offset >> 2; - count = val_size >> 2; + count = bytes >> 2; if (count > (priv->nregs - index)) count = priv->nregs - index; - for (i = index; i < (index + count); i++) { - *(u32 *)val = readl(priv->base + 0x400 + i * 0x10); - val += 4; - } + for (i = index; i < (index + count); i++) + *buf++ = readl(priv->base + 0x400 + i * 0x10); return 0; } -static int imx_ocotp_write(void *context, const void *data, size_t count) -{ - /* Not implemented */ - return 0; -} - -static struct regmap_bus imx_ocotp_bus = { - .read = imx_ocotp_read, - .write = imx_ocotp_write, - .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, -}; - -static bool imx_ocotp_writeable_reg(struct device *dev, unsigned int reg) -{ - return false; -} - -static struct regmap_config imx_ocotp_regmap_config = { - .reg_bits = 32, - .val_bits = 32, - .reg_stride = 4, - .writeable_reg = imx_ocotp_writeable_reg, - .name = "imx-ocotp", -}; - static struct nvmem_config imx_ocotp_nvmem_config = { .name = "imx-ocotp", .read_only = true, + .word_size = 4, + .stride = 4, .owner = THIS_MODULE, + .reg_read = imx_ocotp_read, }; static const struct of_device_id imx_ocotp_dt_ids[] = { @@ -99,7 +73,6 @@ static int imx_ocotp_probe(struct platform_device *pdev) const struct of_device_id *of_id; struct device *dev = &pdev->dev; struct resource *res; - struct regmap *regmap; struct ocotp_priv *priv; struct nvmem_device *nvmem; @@ -114,15 +87,9 @@ static int imx_ocotp_probe(struct platform_device *pdev) of_id = of_match_device(imx_ocotp_dt_ids, dev); priv->nregs = (unsigned int)of_id->data; - imx_ocotp_regmap_config.max_register = 4 * priv->nregs - 4; - - regmap = devm_regmap_init(dev, &imx_ocotp_bus, priv, - &imx_ocotp_regmap_config); - if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed\n"); - return PTR_ERR(regmap); - } + imx_ocotp_nvmem_config.size = 4 * priv->nregs; imx_ocotp_nvmem_config.dev = dev; + imx_ocotp_nvmem_config.priv = priv; nvmem = nvmem_register(&imx_ocotp_nvmem_config); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); diff --git a/drivers/nvmem/lpc18xx_eeprom.c b/drivers/nvmem/lpc18xx_eeprom.c index 878fce789341..c81ae4c6da74 100644 --- a/drivers/nvmem/lpc18xx_eeprom.c +++ b/drivers/nvmem/lpc18xx_eeprom.c @@ -16,7 +16,6 @@ #include <linux/module.h> #include <linux/nvmem-provider.h> #include <linux/platform_device.h> -#include <linux/regmap.h> #include <linux/reset.h> /* Registers */ @@ -51,12 +50,7 @@ struct lpc18xx_eeprom_dev { struct nvmem_device *nvmem; unsigned reg_bytes; unsigned val_bytes; -}; - -static struct regmap_config lpc18xx_regmap_config = { - .reg_bits = 32, - .reg_stride = 4, - .val_bits = 32, + int size; }; static inline void lpc18xx_eeprom_writel(struct lpc18xx_eeprom_dev *eeprom, @@ -95,30 +89,35 @@ static int lpc18xx_eeprom_busywait_until_prog(struct lpc18xx_eeprom_dev *eeprom) return -ETIMEDOUT; } -static int lpc18xx_eeprom_gather_write(void *context, const void *reg, - size_t reg_size, const void *val, - size_t val_size) +static int lpc18xx_eeprom_gather_write(void *context, unsigned int reg, + void *val, size_t bytes) { struct lpc18xx_eeprom_dev *eeprom = context; - unsigned int offset = *(u32 *)reg; + unsigned int offset = reg; int ret; - if (offset % lpc18xx_regmap_config.reg_stride) + /* + * The last page contains the EEPROM initialization data and is not + * writable. + */ + if ((reg > eeprom->size - LPC18XX_EEPROM_PAGE_SIZE) || + (reg + bytes > eeprom->size - LPC18XX_EEPROM_PAGE_SIZE)) return -EINVAL; + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, LPC18XX_EEPROM_PWRDWN_NO); /* Wait 100 us while the EEPROM wakes up */ usleep_range(100, 200); - while (val_size) { + while (bytes) { writel(*(u32 *)val, eeprom->mem_base + offset); ret = lpc18xx_eeprom_busywait_until_prog(eeprom); if (ret < 0) return ret; - val_size -= eeprom->val_bytes; + bytes -= eeprom->val_bytes; val += eeprom->val_bytes; offset += eeprom->val_bytes; } @@ -129,23 +128,10 @@ static int lpc18xx_eeprom_gather_write(void *context, const void *reg, return 0; } -static int lpc18xx_eeprom_write(void *context, const void *data, size_t count) +static int lpc18xx_eeprom_read(void *context, unsigned int offset, + void *val, size_t bytes) { struct lpc18xx_eeprom_dev *eeprom = context; - unsigned int offset = eeprom->reg_bytes; - - if (count <= offset) - return -EINVAL; - - return lpc18xx_eeprom_gather_write(context, data, eeprom->reg_bytes, - data + offset, count - offset); -} - -static int lpc18xx_eeprom_read(void *context, const void *reg, size_t reg_size, - void *val, size_t val_size) -{ - struct lpc18xx_eeprom_dev *eeprom = context; - unsigned int offset = *(u32 *)reg; lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, LPC18XX_EEPROM_PWRDWN_NO); @@ -153,9 +139,9 @@ static int lpc18xx_eeprom_read(void *context, const void *reg, size_t reg_size, /* Wait 100 us while the EEPROM wakes up */ usleep_range(100, 200); - while (val_size) { + while (bytes) { *(u32 *)val = readl(eeprom->mem_base + offset); - val_size -= eeprom->val_bytes; + bytes -= eeprom->val_bytes; val += eeprom->val_bytes; offset += eeprom->val_bytes; } @@ -166,31 +152,13 @@ static int lpc18xx_eeprom_read(void *context, const void *reg, size_t reg_size, return 0; } -static struct regmap_bus lpc18xx_eeprom_bus = { - .write = lpc18xx_eeprom_write, - .gather_write = lpc18xx_eeprom_gather_write, - .read = lpc18xx_eeprom_read, - .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, -}; - -static bool lpc18xx_eeprom_writeable_reg(struct device *dev, unsigned int reg) -{ - /* - * The last page contains the EEPROM initialization data and is not - * writable. - */ - return reg <= lpc18xx_regmap_config.max_register - - LPC18XX_EEPROM_PAGE_SIZE; -} - -static bool lpc18xx_eeprom_readable_reg(struct device *dev, unsigned int reg) -{ - return reg <= lpc18xx_regmap_config.max_register; -} static struct nvmem_config lpc18xx_nvmem_config = { .name = "lpc18xx-eeprom", + .stride = 4, + .word_size = 4, + .reg_read = lpc18xx_eeprom_read, + .reg_write = lpc18xx_eeprom_gather_write, .owner = THIS_MODULE, }; @@ -200,7 +168,6 @@ static int lpc18xx_eeprom_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct reset_control *rst; unsigned long clk_rate; - struct regmap *regmap; struct resource *res; int ret; @@ -243,8 +210,8 @@ static int lpc18xx_eeprom_probe(struct platform_device *pdev) goto err_clk; } - eeprom->val_bytes = lpc18xx_regmap_config.val_bits / BITS_PER_BYTE; - eeprom->reg_bytes = lpc18xx_regmap_config.reg_bits / BITS_PER_BYTE; + eeprom->val_bytes = 4; + eeprom->reg_bytes = 4; /* * Clock rate is generated by dividing the system bus clock by the @@ -264,19 +231,10 @@ static int lpc18xx_eeprom_probe(struct platform_device *pdev) lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, LPC18XX_EEPROM_PWRDWN_YES); - lpc18xx_regmap_config.max_register = resource_size(res) - 1; - lpc18xx_regmap_config.writeable_reg = lpc18xx_eeprom_writeable_reg; - lpc18xx_regmap_config.readable_reg = lpc18xx_eeprom_readable_reg; - - regmap = devm_regmap_init(dev, &lpc18xx_eeprom_bus, eeprom, - &lpc18xx_regmap_config); - if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed: %ld\n", PTR_ERR(regmap)); - ret = PTR_ERR(regmap); - goto err_clk; - } - + eeprom->size = resource_size(res); + lpc18xx_nvmem_config.size = resource_size(res); lpc18xx_nvmem_config.dev = dev; + lpc18xx_nvmem_config.priv = eeprom; eeprom->nvmem = nvmem_register(&lpc18xx_nvmem_config); if (IS_ERR(eeprom->nvmem)) { diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c index 3829e5fbf8c3..b5305f08b184 100644 --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -13,21 +13,35 @@ #include <linux/device.h> #include <linux/module.h> +#include <linux/io.h> #include <linux/nvmem-provider.h> #include <linux/platform_device.h> -#include <linux/regmap.h> -static struct regmap_config qfprom_regmap_config = { - .reg_bits = 32, - .val_bits = 8, - .reg_stride = 1, - .val_format_endian = REGMAP_ENDIAN_LITTLE, -}; +static int qfprom_reg_read(void *context, + unsigned int reg, void *_val, size_t bytes) +{ + void __iomem *base = context; + u32 *val = _val; + int i = 0, words = bytes / 4; -static struct nvmem_config econfig = { - .name = "qfprom", - .owner = THIS_MODULE, -}; + while (words--) + *val++ = readl(base + reg + (i++ * 4)); + + return 0; +} + +static int qfprom_reg_write(void *context, + unsigned int reg, void *_val, size_t bytes) +{ + void __iomem *base = context; + u32 *val = _val; + int i = 0, words = bytes / 4; + + while (words--) + writel(*val++, base + reg + (i++ * 4)); + + return 0; +} static int qfprom_remove(struct platform_device *pdev) { @@ -36,12 +50,20 @@ static int qfprom_remove(struct platform_device *pdev) return nvmem_unregister(nvmem); } +static struct nvmem_config econfig = { + .name = "qfprom", + .owner = THIS_MODULE, + .stride = 4, + .word_size = 1, + .reg_read = qfprom_reg_read, + .reg_write = qfprom_reg_write, +}; + static int qfprom_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; struct nvmem_device *nvmem; - struct regmap *regmap; void __iomem *base; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -49,14 +71,10 @@ static int qfprom_probe(struct platform_device *pdev) if (IS_ERR(base)) return PTR_ERR(base); - qfprom_regmap_config.max_register = resource_size(res) - 1; - - regmap = devm_regmap_init_mmio(dev, base, &qfprom_regmap_config); - if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed\n"); - return PTR_ERR(regmap); - } + econfig.size = resource_size(res); econfig.dev = dev; + econfig.priv = base; + nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c index a009795111e9..4d3f391f0a0b 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)) diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c index bc88b4084055..1567ccca8de3 100644 --- a/drivers/nvmem/sunxi_sid.c +++ b/drivers/nvmem/sunxi_sid.c @@ -21,13 +21,14 @@ #include <linux/nvmem-provider.h> #include <linux/of.h> #include <linux/platform_device.h> -#include <linux/regmap.h> #include <linux/slab.h> #include <linux/random.h> static struct nvmem_config econfig = { .name = "sunxi-sid", .read_only = true, + .stride = 4, + .word_size = 1, .owner = THIS_MODULE, }; @@ -51,54 +52,23 @@ static u8 sunxi_sid_read_byte(const struct sunxi_sid *sid, return sid_key; /* Only return the last byte */ } -static int sunxi_sid_read(void *context, - const void *reg, size_t reg_size, - void *val, size_t val_size) +static int sunxi_sid_read(void *context, unsigned int offset, + void *val, size_t bytes) { struct sunxi_sid *sid = context; - unsigned int offset = *(u32 *)reg; u8 *buf = val; - while (val_size) { - *buf++ = sunxi_sid_read_byte(sid, offset); - val_size--; - offset++; - } - - return 0; -} + while (bytes--) + *buf++ = sunxi_sid_read_byte(sid, offset++); -static int sunxi_sid_write(void *context, const void *data, size_t count) -{ - /* Unimplemented, dummy to keep regmap core happy */ return 0; } -static struct regmap_bus sunxi_sid_bus = { - .read = sunxi_sid_read, - .write = sunxi_sid_write, - .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, -}; - -static bool sunxi_sid_writeable_reg(struct device *dev, unsigned int reg) -{ - return false; -} - -static struct regmap_config sunxi_sid_regmap_config = { - .reg_bits = 32, - .val_bits = 8, - .reg_stride = 1, - .writeable_reg = sunxi_sid_writeable_reg, -}; - static int sunxi_sid_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; struct nvmem_device *nvmem; - struct regmap *regmap; struct sunxi_sid *sid; int ret, i, size; char *randomness; @@ -113,16 +83,10 @@ static int sunxi_sid_probe(struct platform_device *pdev) return PTR_ERR(sid->base); size = resource_size(res) - 1; - sunxi_sid_regmap_config.max_register = size; - - regmap = devm_regmap_init(dev, &sunxi_sid_bus, sid, - &sunxi_sid_regmap_config); - if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed\n"); - return PTR_ERR(regmap); - } - + econfig.size = resource_size(res); econfig.dev = dev; + econfig.reg_read = sunxi_sid_read; + econfig.priv = sid; nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); diff --git a/drivers/nvmem/vf610-ocotp.c b/drivers/nvmem/vf610-ocotp.c index 8641319efeda..72e4faabce29 100644 --- a/drivers/nvmem/vf610-ocotp.c +++ b/drivers/nvmem/vf610-ocotp.c @@ -25,7 +25,6 @@ #include <linux/nvmem-provider.h> #include <linux/of.h> #include <linux/platform_device.h> -#include <linux/regmap.h> #include <linux/slab.h> /* OCOTP Register Offsets */ @@ -152,23 +151,16 @@ static int vf610_get_fuse_address(int base_addr_offset) return -EINVAL; } -static int vf610_ocotp_write(void *context, const void *data, size_t count) -{ - return 0; -} - -static int vf610_ocotp_read(void *context, - const void *off, size_t reg_size, - void *val, size_t val_size) +static int vf610_ocotp_read(void *context, unsigned int offset, + void *val, size_t bytes) { struct vf610_ocotp *ocotp = context; void __iomem *base = ocotp->base; - unsigned int offset = *(u32 *)off; u32 reg, *buf = val; int fuse_addr; int ret; - while (val_size > 0) { + while (bytes > 0) { fuse_addr = vf610_get_fuse_address(offset); if (fuse_addr > 0) { writel(ocotp->timing, base + OCOTP_TIMING); @@ -205,29 +197,19 @@ static int vf610_ocotp_read(void *context, } buf++; - val_size--; - offset += reg_size; + bytes -= 4; + offset += 4; } return 0; } -static struct regmap_bus vf610_ocotp_bus = { - .read = vf610_ocotp_read, - .write = vf610_ocotp_write, - .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, -}; - -static struct regmap_config ocotp_regmap_config = { - .reg_bits = 32, - .val_bits = 32, - .reg_stride = 4, -}; - static struct nvmem_config ocotp_config = { .name = "ocotp", .owner = THIS_MODULE, + .stride = 4, + .word_size = 4, + .reg_read = vf610_ocotp_read, }; static const struct of_device_id ocotp_of_match[] = { @@ -247,7 +229,6 @@ static int vf610_ocotp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; - struct regmap *regmap; struct vf610_ocotp *ocotp_dev; ocotp_dev = devm_kzalloc(&pdev->dev, @@ -267,13 +248,8 @@ static int vf610_ocotp_probe(struct platform_device *pdev) return PTR_ERR(ocotp_dev->clk); } - ocotp_regmap_config.max_register = resource_size(res); - regmap = devm_regmap_init(dev, - &vf610_ocotp_bus, ocotp_dev, &ocotp_regmap_config); - if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed\n"); - return PTR_ERR(regmap); - } + ocotp_config.size = resource_size(res); + ocotp_config.priv = ocotp_dev; ocotp_config.dev = dev; ocotp_dev->nvmem = nvmem_register(&ocotp_config); |