Contributors: 16
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Anton Vorontsov |
280 |
67.96% |
1 |
5.00% |
| Lad Prabhakar |
58 |
14.08% |
1 |
5.00% |
| Alexander Shiyan |
14 |
3.40% |
1 |
5.00% |
| Paul Mundt |
12 |
2.91% |
1 |
5.00% |
| Grant C. Likely |
11 |
2.67% |
4 |
20.00% |
| Kefeng Wang |
7 |
1.70% |
1 |
5.00% |
| Akinobu Mita |
5 |
1.21% |
1 |
5.00% |
| Pawel Moll |
5 |
1.21% |
1 |
5.00% |
| Rob Herring |
4 |
0.97% |
1 |
5.00% |
| Brian Norris |
4 |
0.97% |
2 |
10.00% |
| Geert Uytterhoeven |
4 |
0.97% |
1 |
5.00% |
| Tejun Heo |
3 |
0.73% |
1 |
5.00% |
| Thomas Gleixner |
2 |
0.49% |
1 |
5.00% |
| Axel Lin |
1 |
0.24% |
1 |
5.00% |
| Jeff Garzik |
1 |
0.24% |
1 |
5.00% |
| Bhumika Goyal |
1 |
0.24% |
1 |
5.00% |
| Total |
412 |
|
20 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* OF-platform PATA driver
*
* Copyright (c) 2007 MontaVista Software, Inc.
* Anton Vorontsov <avorontsov@ru.mvista.com>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/libata.h>
#define DRV_NAME "pata_of_platform"
static struct scsi_host_template pata_platform_sht = {
ATA_PIO_SHT(DRV_NAME),
};
static int pata_of_platform_probe(struct platform_device *ofdev)
{
int ret;
struct device_node *dn = ofdev->dev.of_node;
struct resource io_res;
struct resource ctl_res;
struct resource irq_res;
unsigned int reg_shift = 0;
int pio_mode = 0;
int pio_mask;
bool use16bit;
int irq;
ret = of_address_to_resource(dn, 0, &io_res);
if (ret) {
dev_err(&ofdev->dev, "can't get IO address from "
"device tree\n");
return -EINVAL;
}
ret = of_address_to_resource(dn, 1, &ctl_res);
if (ret) {
dev_err(&ofdev->dev, "can't get CTL address from "
"device tree\n");
return -EINVAL;
}
memset(&irq_res, 0, sizeof(irq_res));
irq = platform_get_irq_optional(ofdev, 0);
if (irq < 0 && irq != -ENXIO)
return irq;
if (irq > 0) {
irq_res.start = irq;
irq_res.end = irq;
}
of_property_read_u32(dn, "reg-shift", ®_shift);
if (!of_property_read_u32(dn, "pio-mode", &pio_mode)) {
if (pio_mode > 6) {
dev_err(&ofdev->dev, "invalid pio-mode\n");
return -EINVAL;
}
} else {
dev_info(&ofdev->dev, "pio-mode unspecified, assuming PIO0\n");
}
use16bit = of_property_read_bool(dn, "ata-generic,use16bit");
pio_mask = 1 << pio_mode;
pio_mask |= (1 << pio_mode) - 1;
return __pata_platform_probe(&ofdev->dev, &io_res, &ctl_res, irq > 0 ? &irq_res : NULL,
reg_shift, pio_mask, &pata_platform_sht,
use16bit);
}
static const struct of_device_id pata_of_platform_match[] = {
{ .compatible = "ata-generic", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, pata_of_platform_match);
static struct platform_driver pata_of_platform_driver = {
.driver = {
.name = DRV_NAME,
.of_match_table = pata_of_platform_match,
},
.probe = pata_of_platform_probe,
.remove = ata_platform_remove_one,
};
module_platform_driver(pata_of_platform_driver);
MODULE_DESCRIPTION("OF-platform PATA driver");
MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
MODULE_LICENSE("GPL");