linux-kernel - [PATCH v2 3/4] arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable rtc

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Message-Id: <20240528225137.3629698-4-nmorrisson@phytec.com>
Date: Tue, 28 May 2024 15:51:36 -0700
From: Nathan Morrisson <nmorrisson@...tec.com>
To: nm@...com,
	vigneshr@...com,
	kristo@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	upstream@...ts.phytec.de,
	w.egorov@...tec.de
Subject: [PATCH v2 3/4] arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable rtc

Add an overlay to disable the rtc for all am6xx-phycore-som boards.

Signed-off-by: Nathan Morrisson <nmorrisson@...tec.com>
---
v2:
  - Add build time tests in makefile

 arch/arm64/boot/dts/ti/Makefile                   |  5 +++++
 .../boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso | 15 +++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 320da5ea38e0..3d0e87a78e09 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -56,6 +56,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo
 
 # Common overlays for the phyCORE-AM6* family of boards
 dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-eth-phy.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-rtc.dtbo
 
 # Boards with AM65x SoC
 k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb \
@@ -112,6 +113,8 @@ k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
 	k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
 k3-am625-phyboard-lyra-disable-eth-phy-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
 	k3-am6xx-phycore-disable-eth-phy.dtbo
+k3-am625-phyboard-lyra-disable-rtc-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
+	k3-am6xx-phycore-disable-rtc.dtbo
 k3-am625-phyboard-lyra-gpio-fan-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
 	k3-am62x-phyboard-lyra-gpio-fan.dtbo
 k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
@@ -139,6 +142,8 @@ k3-am642-evm-icssg1-dualemac-dtbs := \
 	k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo
 k3-am642-phyboard-electra-disable-eth-phy-dtbs := \
 	k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-eth-phy.dtbo
+k3-am642-phyboard-electra-disable-rtc-dtbs := \
+	k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-rtc.dtbo
 k3-am642-phyboard-electra-gpio-fan-dtbs := \
 	k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
 k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
diff --git a/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso
new file mode 100644
index 000000000000..8b24191f5948
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-rtc.dtso
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2023 PHYTEC America, LLC
+ * Author: Garrett Giordano <ggiordano@...tec.com>
+ *
+ * Copyright (C) 2024 PHYTEC America, LLC
+ * Author: Nathan Morrisson <nmorrisson@...tec.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&i2c_som_rtc {
+	status = "disabled";
+};
-- 
2.25.1