int davinci_i2c_fix_ths7353_lockup( void )
{
printk( "Toggle I2C clock to clear THS7353 false ACK\n" );
PINMUX1 &= ~(1 << 7);
request_gio( GIO_I2C_SCL );
request_gio( GIO_I2C_SDA );
gio_set_bitset( GIO_I2C_SCL );
gio_set_bitset( GIO_I2C_SDA );
gio_set_dir( GIO_I2C_SCL, 0 );
gio_set_dir( GIO_I2C_SDA, 0 );
gio_set_bitclr( GIO_I2C_SCL );
udelay( 100 );
gio_set_bitset( GIO_I2C_SCL );
udelay( 100 );
gio_set_bitclr( GIO_I2C_SCL );
udelay( 100 );
gio_set_bitset( GIO_I2C_SCL );
udelay( 100 );
unrequest_gio( GIO_I2C_SCL );
unrequest_gio( GIO_I2C_SDA );
udelay( 100 );
return 0;
}
static void ide_itdm320_hotplug(void)
{
// for now, we just toggle the LED...
static int usb_enabled = 0;
long unsigned int flags;
static volatile long unsigned int count = 0;
static volatile long unsigned i_jiffies;
volatile long unsigned c_jiffies;
c_jiffies = jiffies;
spin_lock_irqsave(&it_hdd_lock,flags);
if (count){//ignore comparison during very first interrupt
if ((c_jiffies - i_jiffies) < 25){
spin_unlock_irqrestore(&it_hdd_lock,flags);
return;
}
}
count = 1;
if (usb_enabled){
it_led_off(IT_LED_1);
gio_set_bitclr(GIO_USB_ENABLE);
gio_set_inv(GIO_USB_ENABLE,bit_hi);
usb_enabled = 0;
}
else {
it_led_on(IT_LED_1);
gio_set_bitset(GIO_USB_ENABLE);
gio_set_inv(GIO_USB_ENABLE,bit_low);
usb_enabled = 1;
}
i_jiffies = jiffies;
spin_unlock_irqrestore(&it_hdd_lock,flags);
}