Hello ,
I have PXA166 board with MAX7319 GPIO expander connected with 8
buttons. When any button is pressed, I want to get input event. Can
this be done?
I have read the littleton and aspenite code to try. The SDA is 105,
SCL is 106. I use MAX732x driver. It is set as I2C slave at 0x6C. So I
set up:
static struct i2c_pxa_platform_data pwri2c_info __initdata = {
.use_pio = 1,
};
static unsigned long peony_pin_config[] __initdata = {
/* i2c bus */
GPIO105_CI2C_SDA,
GPIO106_CI2C_SCL,
}
static struct max732x_platform_data max7319_data[] = {
[0] = {
.gpio_base = GPIO_EXT0(0),
},
};
static struct i2c_board_info i2c_board_info[] =
{
{
.type = "max7319",
.addr = 0x6C,
.irq = IRQ_GPIO(105),
.platform_data = &max7319_data[0],
},
};
when bootup I see;
<6>[ 0.290770] I2C: i2c-0: PXA I2C adapter
<6>[ 0.307118] I2C: i2c-1: PXA I2C adapter
<6>[ 0.821709] hello pony_init
<3>[ 0.838559] platform_driver_register
<6>[ 0.868069] max732x_read: read g 1
<6>[ 0.881893] max732x_read: read g 0
<4>[ 0.898895] i2c: error: exhausted retries
<4>[ 0.911947] i2c: msg_num: 0 msg_idx: -2000 msg_ptr: 0
<4>[ 0.927509] i2c: ICR: 000007e0 ISR: 00000002
<4>[ 0.927526] i2c: log: [00000006:00000000] [00000006:00000000]
[00000006:00000000] [00000006:00000000] [00000006:00000000]
[00000006:00000000] [0000000
<3>[ 1.167890] dummy 0-005d: failed reading
<5>[ 1.182585] SCSI subsystem initialized
Maybe max732x driver is not getting correct data from my setup? No
event when pressing button. If any ideas?
Thank you very much!
Jeb
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