182 lines
3.8 KiB
C
182 lines
3.8 KiB
C
/*
|
|
* Toshiba TC6387XB support
|
|
* Copyright (c) 2005 Ian Molton
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This file contains TC6387XB base support.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/err.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/mfd/tmio.h>
|
|
#include <linux/mfd/tc6387xb.h>
|
|
|
|
enum {
|
|
TC6387XB_CELL_MMC,
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state)
|
|
{
|
|
struct tc6387xb_platform_data *pdata = platform_get_drvdata(dev);
|
|
|
|
if (pdata && pdata->suspend)
|
|
pdata->suspend(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tc6387xb_resume(struct platform_device *dev)
|
|
{
|
|
struct tc6387xb_platform_data *pdata = platform_get_drvdata(dev);
|
|
|
|
if (pdata && pdata->resume)
|
|
pdata->resume(dev);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
#define tc6387xb_suspend NULL
|
|
#define tc6387xb_resume NULL
|
|
#endif
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static int tc6387xb_mmc_enable(struct platform_device *mmc)
|
|
{
|
|
struct platform_device *dev = to_platform_device(mmc->dev.parent);
|
|
struct tc6387xb_platform_data *tc6387xb = dev->dev.platform_data;
|
|
|
|
if (tc6387xb->enable_clk32k)
|
|
tc6387xb->enable_clk32k(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tc6387xb_mmc_disable(struct platform_device *mmc)
|
|
{
|
|
struct platform_device *dev = to_platform_device(mmc->dev.parent);
|
|
struct tc6387xb_platform_data *tc6387xb = dev->dev.platform_data;
|
|
|
|
if (tc6387xb->disable_clk32k)
|
|
tc6387xb->disable_clk32k(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static struct resource tc6387xb_mmc_resources[] = {
|
|
{
|
|
.start = 0x800,
|
|
.end = 0x9ff,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = 0x200,
|
|
.end = 0x2ff,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = 0,
|
|
.end = 0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct mfd_cell tc6387xb_cells[] = {
|
|
[TC6387XB_CELL_MMC] = {
|
|
.name = "tmio-mmc",
|
|
.enable = tc6387xb_mmc_enable,
|
|
.disable = tc6387xb_mmc_disable,
|
|
.num_resources = ARRAY_SIZE(tc6387xb_mmc_resources),
|
|
.resources = tc6387xb_mmc_resources,
|
|
},
|
|
};
|
|
|
|
static int tc6387xb_probe(struct platform_device *dev)
|
|
{
|
|
struct tc6387xb_platform_data *data = platform_get_drvdata(dev);
|
|
struct resource *iomem;
|
|
int irq, ret;
|
|
|
|
iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
|
|
if (!iomem) {
|
|
ret = -EINVAL;
|
|
goto err_resource;
|
|
}
|
|
|
|
ret = platform_get_irq(dev, 0);
|
|
if (ret >= 0)
|
|
irq = ret;
|
|
else
|
|
goto err_resource;
|
|
|
|
if (data && data->enable)
|
|
data->enable(dev);
|
|
|
|
printk(KERN_INFO "Toshiba tc6387xb initialised\n");
|
|
|
|
tc6387xb_cells[TC6387XB_CELL_MMC].platform_data =
|
|
&tc6387xb_cells[TC6387XB_CELL_MMC];
|
|
tc6387xb_cells[TC6387XB_CELL_MMC].data_size =
|
|
sizeof(tc6387xb_cells[TC6387XB_CELL_MMC]);
|
|
|
|
ret = mfd_add_devices(&dev->dev, dev->id, tc6387xb_cells,
|
|
ARRAY_SIZE(tc6387xb_cells), iomem, irq);
|
|
|
|
if (!ret)
|
|
return 0;
|
|
|
|
err_resource:
|
|
return ret;
|
|
}
|
|
|
|
static int tc6387xb_remove(struct platform_device *dev)
|
|
{
|
|
struct tc6387xb_platform_data *data = platform_get_drvdata(dev);
|
|
|
|
if (data && data->disable)
|
|
data->disable(dev);
|
|
|
|
/* FIXME - free the resources! */
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct platform_driver tc6387xb_platform_driver = {
|
|
.driver = {
|
|
.name = "tc6387xb",
|
|
},
|
|
.probe = tc6387xb_probe,
|
|
.remove = tc6387xb_remove,
|
|
.suspend = tc6387xb_suspend,
|
|
.resume = tc6387xb_resume,
|
|
};
|
|
|
|
|
|
static int __init tc6387xb_init(void)
|
|
{
|
|
return platform_driver_register(&tc6387xb_platform_driver);
|
|
}
|
|
|
|
static void __exit tc6387xb_exit(void)
|
|
{
|
|
platform_driver_unregister(&tc6387xb_platform_driver);
|
|
}
|
|
|
|
module_init(tc6387xb_init);
|
|
module_exit(tc6387xb_exit);
|
|
|
|
MODULE_DESCRIPTION("Toshiba TC6387XB core driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_AUTHOR("Ian Molton");
|
|
MODULE_ALIAS("platform:tc6387xb");
|