Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Srinivas Kandagatla |
273 |
81.74% |
2 |
28.57% |
| Masahiro Yamada |
49 |
14.67% |
1 |
14.29% |
| Andrey Smirnov |
4 |
1.20% |
1 |
14.29% |
| Vivek Gautam |
3 |
0.90% |
1 |
14.29% |
| Randy Dunlap |
3 |
0.90% |
1 |
14.29% |
| Thomas Gleixner |
2 |
0.60% |
1 |
14.29% |
| Total |
334 |
|
7 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2015 Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/io.h>
#include <linux/nvmem-provider.h>
#include <linux/platform_device.h>
struct qfprom_priv {
void __iomem *base;
};
static int qfprom_reg_read(void *context,
unsigned int reg, void *_val, size_t bytes)
{
struct qfprom_priv *priv = context;
u8 *val = _val;
int i = 0, words = bytes;
while (words--)
*val++ = readb(priv->base + reg + i++);
return 0;
}
static struct nvmem_config econfig = {
.name = "qfprom",
.stride = 1,
.word_size = 1,
.reg_read = qfprom_reg_read,
};
static int qfprom_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
struct nvmem_device *nvmem;
struct qfprom_priv *priv;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
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.size = resource_size(res);
econfig.dev = dev;
econfig.priv = priv;
nvmem = devm_nvmem_register(dev, &econfig);
return PTR_ERR_OR_ZERO(nvmem);
}
static const struct of_device_id qfprom_of_match[] = {
{ .compatible = "qcom,qfprom",},
{/* sentinel */},
};
MODULE_DEVICE_TABLE(of, qfprom_of_match);
static struct platform_driver qfprom_driver = {
.probe = qfprom_probe,
.driver = {
.name = "qcom,qfprom",
.of_match_table = qfprom_of_match,
},
};
module_platform_driver(qfprom_driver);
MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org>");
MODULE_DESCRIPTION("Qualcomm QFPROM driver");
MODULE_LICENSE("GPL v2");