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add i2c mode to board_raho.c

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This commit is contained in:
kfx
2010-08-13 17:43:18 +08:00
parent 9a9361cd49
commit a4cf69624b
2 changed files with 3 additions and 58 deletions
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2
arch/arm/mach-rk2818/board-raho.c
View File

@@ -517,6 +517,7 @@ struct rk2818_i2c_platform_data default_i2c0_data = {
.flags = 0,
.slave_addr = 0xff,
.scl_rate = 400*1000,
.mode = I2C_MODE_IRQ, //I2C_MODE_POLL
.cfg_gpio = rk2818_i2c0_cfg_gpio,
};
struct rk2818_i2c_platform_data default_i2c1_data = {
@@ -528,6 +529,7 @@ struct rk2818_i2c_platform_data default_i2c1_data = {
.flags = 0,
.slave_addr = 0xff,
.scl_rate = 400*1000,
.mode = I2C_MODE_IRQ, //I2C_MODE_POLL
.cfg_gpio = rk2818_i2c1_cfg_gpio,
};

59
drivers/i2c/busses/i2c-rk2818.c
View File

@@ -166,6 +166,7 @@ static int rk2818_event_occurred(struct rk2818_i2c_data *i2c)
isr &= ~I2C_ISR_ARBITR_LOSE;
writel(isr, i2c->regs + I2C_ISR);
i2c->cmd_err = RK2818_ERROR_ARBITR_LOSE;
dev_err(i2c->dev, "<error>arbitration loss\n");
return 1;
}
@@ -777,65 +778,7 @@ static void __exit rk2818_i2c_adap_exit(void)
subsys_initcall(rk2818_i2c_adap_init);
module_exit(rk2818_i2c_adap_exit);
#if 1
/* i2c devices test driver */
static int i2c_test_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret, i ;
char buf;
char reg = 0x02;
int scl_rate = 100 * 1000;
ret = i2c_master_reg8_recv(client, reg, &buf ,1, scl_rate);
/*
short buf161 = 0x0303;
short reg161 = 0x0100;
short buf162 = 0xc001;
short reg162 = 0x1006;
printk("%s\n", __func__);
ret = i2c_master_reg16_send(client, reg162, &buf162 ,1, scl_rate);
ret = i2c_master_reg16_send(client, reg161, &buf161 ,1, scl_rate);
ret = i2c_master_reg16_recv(client, reg162, &buf162 ,1, scl_rate);
ret = i2c_master_reg16_recv(client, reg161, &buf161 ,1, scl_rate);
*/
return 0;
}
static int i2c_test_remove(struct i2c_client *client)
{
return 0;
}
static const struct i2c_device_id i2c_test_id[] = {
{ "i2c_test", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, i2c_test_id);
static struct i2c_driver i2c_test_driver = {
.driver = {
.name = "i2c_test",
},
.probe = i2c_test_probe,
.remove = i2c_test_remove,
.id_table = i2c_test_id,
};
static int __init i2c_test_init(void)
{
return i2c_add_driver(&i2c_test_driver);
}
static void __exit i2c_test_exit(void)
{
i2c_del_driver(&i2c_test_driver);
}
fs_initcall(i2c_test_init);
module_exit(i2c_test_exit);
/************************************/
#endif
MODULE_DESCRIPTION("Driver for RK2818 I2C Bus");
MODULE_AUTHOR("kfx, kfx@rock-chips.com");
MODULE_LICENSE("GPL");