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Wed, 5 Aug 2026 21:32:31 +0200 (CEST) From: Markus Probst Date: Wed, 05 Aug 2026 19:32:33 +0000 Subject: [PATCH v3 5/5] rtc: s35390a: Add synology quirk MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260805-rtc_s35390a_int1-v3-5-e836faba3e25@posteo.de> References: <20260805-rtc_s35390a_int1-v3-0-e836faba3e25@posteo.de> In-Reply-To: <20260805-rtc_s35390a_int1-v3-0-e836faba3e25@posteo.de> To: Alexandre Belloni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Michael Langer , Andrew Morton , Linus Walleij Cc: linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Markus Probst X-Developer-Signature: v=1; a=openpgp-sha256; l=1557; i=markus.probst@posteo.de; h=from:subject:message-id; bh=nU4oKF0HljyU5+Oar3xvGQYP2KUrQWpDTVckxk3b1j0=; b=owEBiQJ2/ZANAwAIATR2H/jnrUPSAcsmYgBqc4/GyQzzF6iNKyJaLLL+IyBR24UoJcQZxyBCZ kCOyyW0uGGJAk8EAAEIADkWIQSCdBjE9KxY53IwxHM0dh/4561D0gUCanOPxhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQNHYf+OetQ9IITw//TVFw1lU39BGaxlnr/0PpFc1Yv+TME8E qSNW2XeehKOyzMjw7w4X0jkqLh9K10t0lDa9erv5yeXqDCF1XD236yK+g7igo2SidcuKu7GRi0r 6ua+J5lvSaAyrxuvNFd2PJYNT41eSS8hhbJNFnBneSDohEX7KxscpYauM5Msm4S9RDZQkt4sYvQ AQl1ZBWnKEWXOnSv3/YJKKpHAZ8OeECe7Iq4tz/mTNc1HiYpUjOhw8AVWYlCPNn6Lzz7IDN0pYw CBRBolLhB9RltyUnYmls0+mQfIntcduKMfqgSa/YJNMkJKogqTK4/dO5+3CA7roVwFYNWtYh5ef f1jVO7Tq5EyN4WKko+o7a3wvTc980gRJqncv4y77UGNM8aKt+547mNwPlIrmoCYBuAaSFMKn95M ac9d96ShcEYuM+XyTkvSzK/fkE5WAuzQ2q7Z4dKLKZzYHGbCKePnRXWDamkhX1gcaGNyhUKbUMK TrEHBH5uUdz1YZwwdPVqYA2yUkUWWcJJqImzTiDoXWUrBm/sKZi5G7dLTdlWuPxC4FwcpdZtJt8 Hw//9QkY5zBddPCwJE5XwRWOjMx/qpAuixp21HhOK1Qp78PWruDtHDsJLOIRskxnifTI6NIGmvA bH0cisP/+0NAX2qnBuaLOmEglMvyi504awnrc8I2Liuzh3FXCnc0= X-Developer-Key: i=markus.probst@posteo.de; 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preference=encrypt X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260805_123236_707218_68FAB2C6 X-CRM114-Status: GOOD ( 14.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Synology NAS devices use interrupt signal 1 for wakeup alarms. On ACPI it is not possible to configure pinctrl. Use interrupt signal 1 for wakeup if no pinmux function has been configured in devicetree and dmi sys vendor matches "Synology Inc.". Signed-off-by: Markus Probst --- drivers/rtc/rtc-s35390a.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c index d63bdeff8cdb..2537bd8fe3e8 100644 --- a/drivers/rtc/rtc-s35390a.c +++ b/drivers/rtc/rtc-s35390a.c @@ -5,6 +5,7 @@ * Copyright (c) 2007 Byron Bradley */ +#include #include #include #include @@ -771,8 +772,18 @@ static int s35390a_probe(struct i2c_client *client) return dev_err_probe(dev, err, "pinctrl enable failed\n"); /* If no pinmux function is defined in DT, fallback to previous behaviour */ - fallback[0] = S35390A_FUNC_IGNORE; - fallback[1] = S35390A_FUNC_WAKEUP; + + if (dmi_match(DMI_SYS_VENDOR, "Synology Inc.")) { + /* + * Synology uses interrupt signal 1 for wakeup. Since pinctrl cannot be + * configured on ACPI, we check against the dmi sys vendor. + */ + fallback[0] = S35390A_FUNC_WAKEUP; + fallback[1] = S35390A_FUNC_DISABLE; + } else { + fallback[0] = S35390A_FUNC_IGNORE; + fallback[1] = S35390A_FUNC_WAKEUP; + } for (i = 0; i < ARRAY_SIZE(s35390a_pin_groups); i++) { if (s35390a->pinfunction[i] == -1) { -- 2.54.0