hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

nvmem: vif610-ocotp: remove nvmem regmap dependency 

This patch moves to nvmem support in the driver to use callback
instead of regmap.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Srinivas Kandagatla 2016-04-24 20:28:09 +01:00 committed by Greg Kroah-Hartman
parent 382c62f74f
commit 2c0235c604
1 changed files with 10 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/nvmem/vf610-ocotp.c
View File

@ -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);