On Tue, Nov 06, 2012 at 12:05:24, Bedia, Vaibhav wrote:
> On Mon, Nov 05, 2012 at 14:42:22, Philip, Avinash wrote:
> [...]
> > +pwmss0: pwmss@48300000 {
> > + compatible = "ti,am33xx-pwmss";
> > + reg = <0x48300000 0x10
> > + 0x48300100 0x80
> > + 0x48300180 0x80
> > + 0x48300200 0x80>;
> Do you really need the 4 address ranges here? You eventually do add in
> child nodes with other address ranges so isn't the first entry sufficient?
> I haven't really looked at the DT details so it is enforced by that let me
> know.
This is required to define child nodes ranges so that childs reg space
entries are defined in the range.
>
> [...]
> > +
> > +#define PWMSS_CLKCONFIG 8
> > +
>
> This #def can use a comment.
Ok I will add.
>
> > +void pwmss_submodule_state_change(struct device *dev, int pos, bool enable)
> > +{
> > + struct pwmss_info *info = dev_get_drvdata(dev);
> > + u16 val;
> > +
> > + val = readw(info->mmio_base + PWMSS_CLKCONFIG);
> > + if (enable)
> > + val |= 1 << pos;
> > + else
> > + val &= ~(1 << pos);
> > + mutex_lock(&info->pwmss_lock);
> > + writew(val , info->mmio_base + PWMSS_CLKCONFIG);
> > + mutex_unlock(&info->pwmss_lock);
> > +}
> > +EXPORT_SYMBOL(pwmss_submodule_state_change);
>
> I see a clk_en_ack field in the clock status register. You should be checking that.
Ok. I will add for check & return status from pwmss_submodule_state_change().
>
> [...]
>
> > +
> > +MODULE_DESCRIPTION("pwmss driver");
> > +MODULE_AUTHOR("Texas Instruments");
> > +MODULE_LICENSE("GPL");
> > diff --git a/drivers/pwm/tipwmss.h b/drivers/pwm/tipwmss.h
> > new file mode 100644
> > index 0000000..83fdc29
> > --- /dev/null
> > +++ b/drivers/pwm/tipwmss.h
> > @@ -0,0 +1,8 @@
>
> License text?
Ok I will add.
Thanks
Avinash
>
> > +#ifdef CONFIG_PWM_TIPWMSS
> > +extern void pwmss_submodule_state_change(struct device *dev, int pos,
> > + bool enable);
> > +#else
> > +static inline void pwmss_submodule_state_change(struct device *dev, int pos,
> > + bool enable)
> > +{}
> > +#endif
>
> Regards,
> Vaibhav
>
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