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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Claudiu.Beznea@microchip.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Claudiu Beznea Add RTT wakeup capability. Signed-off-by: Claudiu Beznea Acked-by: Nicolas Ferre --- 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[] = { -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel