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SubjectRe: [PATCH 03/12] misc: atmel_tclib: move definitions to header file
On 11/04/2019 17:00:26+0200, Daniel Lezcano wrote:
> On 03/04/2019 16:11, Alexandre Belloni wrote:
> > Move atmel_tc_divisors and atmel_tcb_dt_ids definitions to the header file
> > so they can be used without using tclib.
>
> Why not kill those structure and use the TIMER_OF_DECLARE with the
> corresponding probe function which will initialize to 16 or 32 counter
> width?
>

I'm dropping this patch and the structures but doing the differentiation
with TIMER_OF_DECLARE is not possible as this has to match
"atmel,tcb-timer" and the differentiation is done on the parent
compatible.

>
>
> > Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
> > ---
> > drivers/misc/atmel_tclib.c | 24 ------------------------
> > include/soc/at91/atmel_tcb.h | 21 ++++++++++++++++++++-
> > 2 files changed, 20 insertions(+), 25 deletions(-)
> >
> > diff --git a/drivers/misc/atmel_tclib.c b/drivers/misc/atmel_tclib.c
> > index 3af27ce7e514..c79190525862 100644
> > --- a/drivers/misc/atmel_tclib.c
> > +++ b/drivers/misc/atmel_tclib.c
> > @@ -17,10 +17,6 @@
> > * share individual timers between different drivers.
> > */
> >
> > -/* AT91 has these divide MCK */
> > -const u8 atmel_tc_divisors[5] = { 2, 8, 32, 128, 0, };
> > -EXPORT_SYMBOL(atmel_tc_divisors);
> > -
> > static DEFINE_SPINLOCK(tc_list_lock);
> > static LIST_HEAD(tc_list);
> >
> > @@ -72,26 +68,6 @@ void atmel_tc_free(struct atmel_tc *tc)
> > EXPORT_SYMBOL_GPL(atmel_tc_free);
> >
> > #if defined(CONFIG_OF)
> > -static struct atmel_tcb_config tcb_rm9200_config = {
> > - .counter_width = 16,
> > -};
> > -
> > -static struct atmel_tcb_config tcb_sam9x5_config = {
> > - .counter_width = 32,
> > -};
> > -
> > -static const struct of_device_id atmel_tcb_dt_ids[] = {
> > - {
> > - .compatible = "atmel,at91rm9200-tcb",
> > - .data = &tcb_rm9200_config,
> > - }, {
> > - .compatible = "atmel,at91sam9x5-tcb",
> > - .data = &tcb_sam9x5_config,
> > - }, {
> > - /* sentinel */
> > - }
> > -};
> > -
> > MODULE_DEVICE_TABLE(of, atmel_tcb_dt_ids);
> > #endif
> >
> > diff --git a/include/soc/at91/atmel_tcb.h b/include/soc/at91/atmel_tcb.h
> > index c3c7200ce151..cb0c5f53cd46 100644
> > --- a/include/soc/at91/atmel_tcb.h
> > +++ b/include/soc/at91/atmel_tcb.h
> > @@ -76,8 +76,27 @@ extern struct atmel_tc *atmel_tc_alloc(unsigned block);
> > extern void atmel_tc_free(struct atmel_tc *tc);
> >
> > /* platform-specific ATMEL_TC_TIMER_CLOCKx divisors (0 means 32KiHz) */
> > -extern const u8 atmel_tc_divisors[5];
> > +static const u8 atmel_tc_divisors[] = { 2, 8, 32, 128, 0, };
> >
> > +static const struct atmel_tcb_config tcb_rm9200_config = {
> > + .counter_width = 16,
> > +};
> > +
> > +static const struct atmel_tcb_config tcb_sam9x5_config = {
> > + .counter_width = 32,
> > +};
> > +
> > +static const struct of_device_id atmel_tcb_dt_ids[] = {
> > + {
> > + .compatible = "atmel,at91rm9200-tcb",
> > + .data = &tcb_rm9200_config,
> > + }, {
> > + .compatible = "atmel,at91sam9x5-tcb",
> > + .data = &tcb_sam9x5_config,
> > + }, {
> > + /* sentinel */
> > + }
> > +};
> >
> > /*
> > * Two registers have block-wide controls. These are: configuring the three
> >
>
>
> --
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>

--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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