On 08/09/2017 at 17:35, Romain Izard wrote: > From: Romain Izard <romain.izard@xxxxxxxxxxxxxxxxx> > > Save and restore the System Clock and Programmable Clock register for > the backup use case. "System Clock" seems to be handled in another patch. > Signed-off-by: Romain Izard <romain.izard.pro@xxxxxxxxx> > --- > drivers/clk/at91/pmc.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c > index 07dc2861ad3f..5421b03553ec 100644 > --- a/drivers/clk/at91/pmc.c > +++ b/drivers/clk/at91/pmc.c > @@ -66,6 +66,7 @@ static struct > u32 pcr[PMC_MAX_IDS]; > u32 audio_pll0; > u32 audio_pll1; > + u32 pckr[3]; Some products have different numbers of PCK (only 2 on at91sam9x5 for instance)... > } pmc_cache; > > void pmc_register_id(u8 id) > @@ -103,6 +104,8 @@ static int pmc_suspend(void) > regmap_read(pmcreg, AT91_PMC_PCR, > &pmc_cache.pcr[registered_ids[i]]); > } > + for (i = 0; i < 3; i++) And it might be a good practice to have this constant value in a #define. We have "#define PROG_ID_MAX 7" defined in drivers/clk/at91/clk-programmable.c. Regards, > + regmap_read(pmcreg, AT91_PMC_PCKR(i), &pmc_cache.pckr[i]); > > return 0; > } > @@ -143,6 +146,8 @@ static void pmc_resume(void) > pmc_cache.pcr[registered_ids[i]] | > AT91_PMC_PCR_CMD); > } > + for (i = 0; i < 3; i++) > + regmap_write(pmcreg, AT91_PMC_PCKR(i), pmc_cache.pckr[i]); > > if (pmc_cache.uckr & AT91_PMC_UPLLEN) > mask |= AT91_PMC_LOCKU; > -- Nicolas Ferre -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
