Re: [PATCH -mm] Blackfin: blackfin i2c driver

["Mike Frysinger" <vapier.adi@gmail.com>]

On 3/6/07, Alexey Dobriyan <adobriyan@gmail.com> wrote:
> > +static int __init i2c_bfin_twi_init(void)
> > +{
> > +     rc = request_irq(twi_iface.irq, bfin_twi_interrupt_entry, SA_INTERRUPT, "i2c-bfin-twi", &twi_iface);
> > +     if (rc) {
> > +             printk(KERN_ERR "i2c-bfin-twi: can't get IRQ %d !\n", twi_iface.irq);
> > +             return -ENODEV;
> > +     }
> > +
> > +     /* Set TWI internal clock as 10MHz */
> > +     bfin_write_TWI_CONTROL(((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F);
> > +
> > +     /* Set Twi interface clock as specified */
> > +     if (CONFIG_TWICLK_KHZ > 400)
> > +             bfin_write_TWI_CLKDIV((( 5*1024 / 400 ) << 8) | (( 5*1024 / 400 ) & 0xFF));
> > +     else
> > +             bfin_write_TWI_CLKDIV((( 5*1024 / CONFIG_TWICLK_KHZ ) << 8) | (( 5*1024 / CONFIG_TWICLK_KHZ ) & 0xFF));
> > +
> > +     /* Enable TWI */
> > +     bfin_write_TWI_CONTROL(bfin_read_TWI_CONTROL() | TWI_ENA);
> > +     SSYNC();
> > +
> > +     return i2c_add_adapter(p_adap);
>
> free_irq on error?

what error ?  do you mean i2c_add_adapter() ?
-mike