From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB7C11DDA18; Thu, 7 Aug 2025 21:44:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754603068; cv=none; b=ILPD4MAgsd4vA+7RiJ+quJEtV6oKsyhaODchbV+tDYE4MbwQCw8dyFKnQPzRwtnDDJtnj6HOQIE7Z+86Q+3MfDDJaFPVVme4dJvRHVGeW1i0NVaC4c321nrR2O9le7blNd2l0RUb49aumJljjOnywFXruimaEjNt4l96crtNQnY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754603068; c=relaxed/simple; bh=17jm/vsWRzponfhYRReQJs6c8DYkYLDPFXFuUO7YZac=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=n1q95m6csfsl2NeF5lEuBSx7bu2JVw4zKHLRdufUPTPAeGOhUl8tbAt6tz4IPUAVljKMAVi+BHQaGiJAbqsEqS/V3pfU1JAA4RND/ek/vm9mO2LUi51JIDFQ3QHZY7G3Gnehjm+7SO+Qyp6at6VtIBclU8VmVVfywHYsnfd7I9M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KBSQD8Dr; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KBSQD8Dr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6396AC4CEEB; Thu, 7 Aug 2025 21:44:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754603067; bh=17jm/vsWRzponfhYRReQJs6c8DYkYLDPFXFuUO7YZac=; h=From:To:Cc:Subject:Date:From; b=KBSQD8DrfN0KXMPZSj+no/jlwnb2zuIEmrr7ta8qwE6H4bkv+gDisK4/9cVRp0e5Z ESrcLw6pBnsGcPkW6aJXOgrwALU1ymWD2tfmd2B7B3YDEztovMdEyCDpFmp9reC/4r fWC8R/MKWBt+J+wswR7bcK2uB30pcAW5Z8zgYcEsFGso0bgYCAF4xwc2KIalOCcIU7 j5moJ1olrNEHb6gSlKTz7tTPSfJnMgbSW9IWe/4mqD9FZAdBylwxva9fXubqEN2jti 9G/1gYE34EbNhs+gFB7FS3xjZ2BSDLavmFG+Tu8WtJAPcEbusxT+3qn223PHXsd0GG gkJaZoacNYtog== From: "Rob Herring (Arm)" To: Alexandre Belloni , Krzysztof Kozlowski , Conor Dooley Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] dt-bindings: rtc: Drop isil,isl12057.txt Date: Thu, 7 Aug 2025 16:44:13 -0500 Message-ID: <20250807214414.4172910-1-robh@kernel.org> X-Mailer: git-send-email 2.47.2 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The "isil,isl12057" compatible is already supported by rtc-ds1307.yaml, so remove the old text binding. Signed-off-by: Rob Herring (Arm) --- .../devicetree/bindings/rtc/isil,isl12057.txt | 74 ------------------- 1 file changed, 74 deletions(-) delete mode 100644 Documentation/devicetree/bindings/rtc/isil,isl12057.txt diff --git a/Documentation/devicetree/bindings/rtc/isil,isl12057.txt b/Documentation/devicetree/bindings/rtc/isil,isl12057.txt deleted file mode 100644 index ff7c43555199..000000000000 --- a/Documentation/devicetree/bindings/rtc/isil,isl12057.txt +++ /dev/null @@ -1,74 +0,0 @@ -Intersil ISL12057 I2C RTC/Alarm chip - -ISL12057 is a trivial I2C device (it has simple device tree bindings, -consisting of a compatible field, an address and possibly an interrupt -line). - -Nonetheless, it also supports an option boolean property -("wakeup-source") to handle the specific use-case found -on at least three in-tree users of the chip (NETGEAR ReadyNAS 102, 104 -and 2120 ARM-based NAS); On those devices, the IRQ#2 pin of the chip -(associated with the alarm supported by the driver) is not connected -to the SoC but to a PMIC. It allows the device to be powered up when -RTC alarm rings. In order to mark the device has a wakeup source and -get access to the 'wakealarm' sysfs entry, this specific property can -be set when the IRQ#2 pin of the chip is not connected to the SoC but -can wake up the device. - -Required properties supported by the device: - - - "compatible": must be "isil,isl12057" - - "reg": I2C bus address of the device - -Optional properties: - - - "wakeup-source": mark the chip as a wakeup source, independently of - the availability of an IRQ line connected to the SoC. - - -Example isl12057 node without IRQ#2 pin connected (no alarm support): - - isl12057: isl12057@68 { - compatible = "isil,isl12057"; - reg = <0x68>; - }; - - -Example isl12057 node with IRQ#2 pin connected to main SoC via MPP6 (note -that the pinctrl-related properties below are given for completeness and -may not be required or may be different depending on your system or -SoC, and the main function of the MPP used as IRQ line, i.e. -"interrupt-parent" and "interrupts" are usually sufficient): - - pinctrl { - ... - - rtc_alarm_pin: rtc_alarm_pin { - marvell,pins = "mpp6"; - marvell,function = "gpio"; - }; - - ... - - }; - - ... - - isl12057: isl12057@68 { - compatible = "isil,isl12057"; - reg = <0x68>; - pinctrl-0 = <&rtc_alarm_pin>; - pinctrl-names = "default"; - interrupt-parent = <&gpio0>; - interrupts = <6 IRQ_TYPE_EDGE_FALLING>; - }; - - -Example isl12057 node without IRQ#2 pin connected to the SoC but to a -PMIC, allowing the device to be started based on configured alarm: - - isl12057: isl12057@68 { - compatible = "isil,isl12057"; - reg = <0x68>; - wakeup-source; - }; -- 2.47.2