[PATCH V3 2/4] drivers/i2c/busses/i2c-at91.c: add new driver

Voss, Nikolaus N.Voss at weinmann.de
Tue Nov 8 10:35:21 EST 2011


Hi,

> > +#include <mach/at91_twi.h>
> > +#include <mach/board.h>
> > +#include <mach/cpu.h>
> 
> avoid including <mach/*> on drivers.

Should I move at91_twi.h to include/linux (omap does it like this,
other use the mach-include)?


> > +	if (irqstatus & AT91_TWI_TXCOMP) {
> > +		at91_disable_twi_interrupts(dev);
> > +		dev->transfer_status = status;
> > +		complete(&dev->cmd_complete);
> > +	}
> > +	else if (irqstatus & AT91_TWI_RXRDY) {
> > +		at91_twi_read_next_byte(dev);
> > +	}
> > +	else if (irqstatus & AT91_TWI_TXRDY) {
> > +		at91_twi_write_next_byte(dev);
> > +	}
> > +	else {
> > +		return IRQ_NONE;
> 
> coding style is wrong. Also, are those IRQ events really mutually exclusive ??

These are indeed mutually exclusive (semantically).

Niko




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