Re: [Alsa-devel] [RFC 2.6.13.1 1/1] CS5535 AUDIO ALSA driver

From: jayakumar alsa
Date: Thu Sep 15 2005 - 07:32:51 EST


On 9/15/05, Takashi Iwai <tiwai@xxxxxxx> wrote:
> Just small glitches I found below:

Much appreciated. Thanks for reviewing. :-)

> You can put this header filer into sound/pci/cs5535, so that it won't
> be exported. Then you don't need __KERNEL__ check, too.

Will do.

> > + u16 eot:1;
> > +} cs5535audio_dma_desc_t;
>
> The bitfield isn't portable to use to comminucate with the hardware.
> Better to use u16 and normal bit operations.

I think 5535 is x86-32 specific, but you are right, I shouldn't use
bit fields. I'll convert over to masks.

> The loop with do_delay() should be replaced with more portable ones
> like msleep().

Will do.

>
> > +{
> > + unsigned long regdata=0;
>
> Unnecessary initialization :)

Good catch.

> > + cs5535au = kcalloc(1, sizeof(*cs5535au), GFP_KERNEL);
>
> Let's use the new kzalloc().

Will do.

> > + spin_lock(&cs5535au->reg_lock);
> > + dma->ops->disable_dma(cs5535au);
> > + dma->ops->setup_prd(cs5535au, jmpprd_addr);
> > + spin_unlock(&cs5535au->reg_lock);
>
> You need spin_lock_irq() here, instead.
>

Got it. Will do.

Thanks,
jk
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