On 14/02/2019 at 12:24, Claudiu Beznea - M18063 wrote: > From: Claudiu Beznea <[email protected]> > > Add RTT wakeup capability. > > Signed-off-by: Claudiu Beznea <[email protected]>
Acked-by: Nicolas Ferre <[email protected]> > --- > drivers/power/reset/at91-sama5d2_shdwc.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c > b/drivers/power/reset/at91-sama5d2_shdwc.c > index 2b686c55b717..0747e0cdf350 100644 > --- a/drivers/power/reset/at91-sama5d2_shdwc.c > +++ b/drivers/power/reset/at91-sama5d2_shdwc.c > @@ -57,15 +57,21 @@ > > #define SHDW_WK_PIN(reg, cfg) ((reg) & > AT91_SHDW_WKUPIS((cfg)->wkup_pin_input)) > #define SHDW_RTCWK(reg, cfg) (((reg) >> ((cfg)->sr_rtcwk_shift)) & > 0x1) > +#define SHDW_RTTWK(reg, cfg) (((reg) >> ((cfg)->sr_rttwk_shift)) & 0x1) > #define SHDW_RTCWKEN(cfg) (1 << ((cfg)->mr_rtcwk_shift)) > +#define SHDW_RTTWKEN(cfg) (1 << ((cfg)->mr_rttwk_shift)) > > #define DBC_PERIOD_US(x) DIV_ROUND_UP_ULL((1000000 * (x)), \ > SLOW_CLOCK_FREQ) > > +#define SHDW_CFG_NOT_USED (32) > + > struct shdwc_config { > u8 wkup_pin_input; > u8 mr_rtcwk_shift; > + u8 mr_rttwk_shift; > u8 sr_rtcwk_shift; > + u8 sr_rttwk_shift; > }; > > struct shdwc { > @@ -104,6 +110,8 @@ static void __init at91_wakeup_status(struct > platform_device *pdev) > reason = "WKUP pin"; > else if (SHDW_RTCWK(reg, shdw->cfg)) > reason = "RTC"; > + else if (SHDW_RTTWK(reg, shdw->cfg)) > + reason = "RTT"; > > pr_info("AT91: Wake-Up source: %s\n", reason); > } > @@ -221,6 +229,9 @@ static void at91_shdwc_dt_configure(struct > platform_device *pdev) > if (of_property_read_bool(np, "atmel,wakeup-rtc-timer")) > mode |= SHDW_RTCWKEN(shdw->cfg); > > + if (of_property_read_bool(np, "atmel,wakeup-rtt-timer")) > + mode |= SHDW_RTTWKEN(shdw->cfg); > + > dev_dbg(&pdev->dev, "%s: mode = %#x\n", __func__, mode); > writel(mode, shdw->shdwc_base + AT91_SHDW_MR); > > @@ -231,7 +242,10 @@ static void at91_shdwc_dt_configure(struct > platform_device *pdev) > static const struct shdwc_config sama5d2_shdwc_config = { > .wkup_pin_input = 0, > .mr_rtcwk_shift = 17, > + .mr_rttwk_shift = SHDW_CFG_NOT_USED, > .sr_rtcwk_shift = 5, > + .sr_rttwk_shift = SHDW_CFG_NOT_USED, > +}; > }; > > static const struct of_device_id at91_shdwc_of_match[] = { > -- Nicolas Ferre
