From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lelvem-ot02.ext.ti.com (lelvem-ot02.ext.ti.com [198.47.23.235]) (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 E74CE267733; Thu, 4 Sep 2025 21:28:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.23.235 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757021317; cv=none; b=U6AoljRW2lFo5iRFWQKOBmxNb1NNlCK4MOEygBCovZCdAVuho0tHgrXEmQAsmz8uhz5amqs6nSDjvzBj6Lri82+V+kaTJ7NTvDiu6LnUp+udA7v4y2HtxZ4ywdhP4fUQbgMmciIHqFSHg0wIu/Y5DD+6kJkeZeAKjTM+0McD/R0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757021317; c=relaxed/simple; bh=9o66Awt/mPree1eZlyfQvs6/0Bf5OjFdBAbQNVvaLKg=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=WA2g1myjLV6lcisf717JYlx1hsPjALepquZuveQ5v6GtLYnK5aYKBDvtUpCa2KWm79Xpn0QbwBYZEwfs+yRtKBRhPNAt5bpSMvGgJNvXoIZ21sCobGBe4ZoOSb5j/5WZfBdmOjdHtaLCItkGOvujR/3NpyeAwaMq7tAf7BQrdCA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=Hji1Dl0C; arc=none smtp.client-ip=198.47.23.235 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Hji1Dl0C" Received: from lelvem-sh02.itg.ti.com ([10.180.78.226]) by lelvem-ot02.ext.ti.com (8.15.2/8.15.2) with ESMTP id 584LSUHv3603630; Thu, 4 Sep 2025 16:28:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1757021310; bh=xdEUUeRhDvZUmqzLma+RUB4tbwLO4rgKjOTXQim98rM=; h=From:To:CC:Subject:Date; b=Hji1Dl0CIUe0DA6IZnqGJ63BgO4TOWYXyyNJoOtLy72CtK//roniuVPUz4IpsY1yf aS+CwKNRH0UJmC2kgHbFtNT0LExWlmGVojULS5lZGBg6evYbxsTRNcYCroUXeIN3aU VSx96isudiXGZIm23NMKqSTK4fx3fVXKdlGAy16M= Received: from DFLE103.ent.ti.com (dfle103.ent.ti.com [10.64.6.24]) by lelvem-sh02.itg.ti.com (8.18.1/8.18.1) with ESMTPS id 584LSU6r449422 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA256 bits=128 verify=FAIL); Thu, 4 Sep 2025 16:28:30 -0500 Received: from DFLE113.ent.ti.com (10.64.6.34) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.55; Thu, 4 Sep 2025 16:28:29 -0500 Received: from lelvem-mr05.itg.ti.com (10.180.75.9) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.55 via Frontend Transport; Thu, 4 Sep 2025 16:28:29 -0500 Received: from uda0506412.dhcp.ti.com (uda0506412.dhcp.ti.com [128.247.81.19]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 584LSTnN3903903; Thu, 4 Sep 2025 16:28:29 -0500 From: Kendall Willis To: , , , , , , , , CC: , , , , , , Subject: [PATCH 0/3] arm64: dts: ti: k3-am62: Support Main UART wakeup Date: Thu, 4 Sep 2025 16:28:24 -0500 Message-ID: <20250904212827.3730314-1-k-willis@ti.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea This series adds wakeup support for the Main UART in the device tree of the TI AM62 family of devices. It defines the specific pins and pinctrl states needed to wakeup the system from the Main UART via I/O daisy-chaining. The wakeup-source property is configured to describe the low power modes the system can wakeup from using the Main UART. Dependencies ------------ This series is dependent on the following series [1] to be merged into the kernel. The series adds the system idle states that are available on the SoCs. The system idle states are used when configuring the wakeup-source property. This series is also dependent on the following patch [2] to be merged into the kernel. The patch integrates the PIN_WKUP_EN macro which enables the WKUP_EN bit. Implementation -------------- This series is intended to be implemented along with the following series: 1. "pmdomain: ti_sci: Handle wakeup constraint if device has pinctrl wakeup state": Patch which skips setting constraints for wakeup sources that use pinctrl state 'wakeup'. 2. "serial: 8250: omap: Add wakeup support": Implements wakeup from the UARTs for TI K3 SoCs 3. "arm64: dts: ti: k3-am62: Support Main UART wakeup": (this series) implements the functionality to wakeup the system from the Main UART Testing ------- Tested on a SK-AM62B-P1 board with all series and dependencies implemented. Suspend/resume verified with the Main UART wakeup source by entering a keypress on the console. [1] https://lore.kernel.org/linux-arm-kernel/20250812-topic-am62-dt-partialio-v6-15-v2-2-25352364a0ac@baylibre.com/ [2] https://lore.kernel.org/all/20250904112538.529857-4-a-kaur@ti.com/ Kendall Willis (3): arm64: dts: ti: k3-am62x-sk-common: Enable Main UART wakeup arm64: dts: ti: k3-am62a7-sk: Enable Main UART wakeup arm64: dts: ti: k3-am62p5-sk: Enable Main UART wakeup arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 24 +++++++++++++++---- arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 24 +++++++++++++++---- .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 24 +++++++++++++++---- 3 files changed, 60 insertions(+), 12 deletions(-) base-commit: 4ac65880ebca1b68495bd8704263b26c050ac010 -- 2.34.1