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received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: wIhA3CQWxDBiMG4dPgsNwDGpmJcbeE5SMXjzQ/0vgUmhhjdf/7mSN9BNCElBH8ybV/j0m6b3lw9BIS5FNrJ3ygBSgr2lJoDakhDkiVMCCm5T7uWS7MQ+I8HP/3jk3dFsvAc/fPRVO3/y7y3hrwhA48z0EgR9q9vS8itgb8JHjGqSr/tlx3VarPkbhlXt3jMqbNbxxVvQxgbP5YX7fXU+AH4wCrYT/Qgv/kyWO/yLmrNmYiH4qwcAo2UvD++sy3t7j3heV9z3rP965+qV7i7kh9B2teNLF/ZF6bJlZQep93vjOmG++vSPIIZ8mCm0t0vNdrEY1wxJbJe1XCA8896LIkcaFHDaiWCkiligc1c/4DfzQWHErbfDGEM6uDfhE3GTKqLRKPmd1CUI27VVU3/SBZTIJYO3T9wVtKJp7vqH2lE= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 0a23d251-2e34-4513-2d9d-08d6926eee8d X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Feb 2019 11:24:01.2347 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR11MB1661 X-OriginatorOrg: microchip.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Claudiu Beznea Add RTT wakeup capability. Signed-off-by: Claudiu Beznea --- 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 @@ =20 #define SHDW_WK_PIN(reg, cfg) ((reg) & AT91_SHDW_WKUPIS((cfg)->wkup_pin_in= put)) #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)) =20 #define DBC_PERIOD_US(x) DIV_ROUND_UP_ULL((1000000 * (x)), \ SLOW_CLOCK_FREQ) =20 +#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; }; =20 struct shdwc { @@ -104,6 +110,8 @@ static void __init at91_wakeup_status(struct platform_d= evice *pdev) reason =3D "WKUP pin"; else if (SHDW_RTCWK(reg, shdw->cfg)) reason =3D "RTC"; + else if (SHDW_RTTWK(reg, shdw->cfg)) + reason =3D "RTT"; =20 pr_info("AT91: Wake-Up source: %s\n", reason); } @@ -221,6 +229,9 @@ static void at91_shdwc_dt_configure(struct platform_dev= ice *pdev) if (of_property_read_bool(np, "atmel,wakeup-rtc-timer")) mode |=3D SHDW_RTCWKEN(shdw->cfg); =20 + if (of_property_read_bool(np, "atmel,wakeup-rtt-timer")) + mode |=3D SHDW_RTTWKEN(shdw->cfg); + dev_dbg(&pdev->dev, "%s: mode =3D %#x\n", __func__, mode); writel(mode, shdw->shdwc_base + AT91_SHDW_MR); =20 @@ -231,7 +242,10 @@ static void at91_shdwc_dt_configure(struct platform_de= vice *pdev) static const struct shdwc_config sama5d2_shdwc_config =3D { .wkup_pin_input =3D 0, .mr_rtcwk_shift =3D 17, + .mr_rttwk_shift =3D SHDW_CFG_NOT_USED, .sr_rtcwk_shift =3D 5, + .sr_rttwk_shift =3D SHDW_CFG_NOT_USED, +}; }; =20 static const struct of_device_id at91_shdwc_of_match[] =3D { --=20 2.7.4