arm64: dts: rockchip: add overlay for qnap-ts233 device revision

TS233 devices received a board revision adding gpios for per hard-disk
presence-detection and power-control. These boards have a PCB-id of at
least 12 (mainboard) and 11 (backplane), which can be read from an EEPROM.

The presence detection is not really necessary and there are also no
existing bindings for doing something with it. So add them as gpio hogs
to at least document them and allow their state to be read from debugfs.

The power-control is modelled as regulators, with the hdd1+hdd2 variants
connected to the RK3568's SATA controllers as target-supplies.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260201191804.41421-4-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 2183466883c78c79877390f46480075e120fa2d6..bd0582f5d324753cffc4054390e76b0173f0f84d 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -151,6 +151,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-nanopi-r5s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-odroid-m1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-photonicat.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts233.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts233-pcb-12-11.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts433.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts433-pcb-12-10.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-radxa-cm3j-rpi-cm4.dtb
@@ -263,6 +264,10 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64-v2-screen.dtb
 rk3399-rockpro64-v2-screen-dtbs := rk3399-rockpro64-v2.dtb \
        rk3399-rockpro64-screen.dtbo
 
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts233-pcb-12-11.dtb
+rk3568-qnap-ts233-pcb-12-11-dtbs := rk3568-qnap-ts233.dtb \
+       rk3568-qnap-ts233-pcb-12-11.dtbo
+
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts433-pcb-12-10.dtb
 rk3568-qnap-ts433-pcb-12-10-dtbs := rk3568-qnap-ts433.dtb \
        rk3568-qnap-ts433-pcb-12-10.dtbo

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts233-pcb-12-11.dtso b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts233-pcb-12-11.dtso
new file mode 100644 (file)
index 0000000..c798717
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts233-pcb-12-11.dtso
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Device tree overlay for TS233 board PCBs-12-11 revision.
+ *
+ * Copyright (C) 2025 Heiko Stuebner <heiko@sntech.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+&{/} {
+       /*
+        * The default hardware-state of this gpio causes the drive
+        * to be already running when entering the kernel.
+        * regulator-boot-on is needed to prevent one additional
+        * power-cycle on the drive.
+        *
+        * With regulator-boot-on we get the expected 1 cycle
+        * per boot, without it we end up with 2 cycles as seen
+        * via smartctl.
+        */
+       hdd1_pwr: regulator-hdd1-power {
+               compatible = "regulator-fixed";
+               gpio = <&gpio0 RK_PC2 GPIO_ACTIVE_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&hdd1_power_pin>;
+               regulator-name = "hdd1-power";
+               regulator-boot-on;
+               vin-supply = <&dc_12v>;
+       };
+
+       hdd2_pwr: regulator-hdd2-power {
+               compatible = "regulator-fixed";
+               gpio = <&gpio0 RK_PC3 GPIO_ACTIVE_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&hdd2_power_pin>;
+               regulator-name = "hdd2-power";
+               regulator-boot-on;
+               vin-supply = <&dc_12v>;
+       };
+};
+
+&gpio2 {
+       hdd1-present-hog {
+               gpios = <RK_PA2 GPIO_ACTIVE_LOW>;
+               gpio-hog;
+               input;
+               line-name = "hdd1-present";
+       };
+
+       hdd2-present-hog {
+               gpios = <RK_PA1 GPIO_ACTIVE_LOW>;
+               gpio-hog;
+               input;
+               line-name = "hdd2-present";
+       };
+};
+
+&pinctrl {
+       pinctrl-names = "default";
+       pinctrl-0 = <&hdd1_present_pin &hdd2_present_pin>;
+
+       hdd-power {
+               hdd1_power_pin: hdd1-power-pin {
+                       rockchip,pins = <0 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+
+               hdd2_power_pin: hdd2-power-pin {
+                       rockchip,pins = <0 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       hdd-present {
+               hdd1_present_pin: hdd1-present-pin {
+                       rockchip,pins = <2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+
+               hdd2_present_pin: hdd2-present-pin {
+                       rockchip,pins = <2 RK_PA1 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+};
+
+&sata1_port0 {
+       target-supply = <&hdd2_pwr>;
+};
+
+&sata2_port0 {
+       target-supply = <&hdd1_pwr>;
+};