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-rw-r--r--drivers/nvmem/Kconfig5
-rw-r--r--drivers/nvmem/core.c89
-rw-r--r--drivers/nvmem/imx-ocotp.c55
-rw-r--r--drivers/nvmem/lpc18xx_eeprom.c94
-rw-r--r--drivers/nvmem/qfprom.c56
-rw-r--r--drivers/nvmem/rockchip-efuse.c49
-rw-r--r--drivers/nvmem/sunxi_sid.c54
-rw-r--r--drivers/nvmem/vf610-ocotp.c44
8 files changed, 155 insertions, 291 deletions
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index ca52952d8..3041d48e7 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 0de3d878c..965911d9b 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,
@@ -93,9 +111,9 @@ 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))
+ if (rc)
return rc;
return count;
@@ -127,9 +145,9 @@ 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))
+ if (rc)
return rc;
return count;
@@ -348,7 +366,7 @@ static int nvmem_add_cells(struct nvmem_device *nvmem,
}
rval = nvmem_cell_info_to_nvmem_cell(nvmem, &info[i], cells[i]);
- if (IS_ERR_VALUE(rval)) {
+ if (rval) {
kfree(cells[i]);
goto err;
}
@@ -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",
@@ -948,9 +961,9 @@ 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))
+ if (rc)
return rc;
/* shift bits in-place */
@@ -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);
@@ -985,7 +998,7 @@ void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len)
return ERR_PTR(-ENOMEM);
rc = __nvmem_cell_read(nvmem, cell, buf, len);
- if (IS_ERR_VALUE(rc)) {
+ if (rc) {
kfree(buf);
return ERR_PTR(rc);
}
@@ -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;
@@ -1064,13 +1077,13 @@ 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)
kfree(buf);
- if (IS_ERR_VALUE(rc))
+ if (rc)
return rc;
return len;
@@ -1094,15 +1107,15 @@ 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);
- if (IS_ERR_VALUE(rc))
+ if (rc)
return rc;
rc = __nvmem_cell_read(nvmem, &cell, buf, &len);
- if (IS_ERR_VALUE(rc))
+ if (rc)
return rc;
return len;
@@ -1124,11 +1137,11 @@ 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);
- if (IS_ERR_VALUE(rc))
+ if (rc)
return rc;
return nvmem_cell_write(&cell, buf, cell.bytes);
@@ -1152,12 +1165,12 @@ 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))
+ if (rc)
return rc;
return bytes;
@@ -1180,12 +1193,12 @@ 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))
+ if (rc)
return rc;
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index d7796eb54..75e66ef5b 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 878fce789..c81ae4c6d 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 3829e5fbf..b5305f08b 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 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))
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index bc88b4084..1567ccca8 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 8641319ef..72e4faabc 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);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-01 17:13:35 +0000