2023-03-14 09:56:24

by Bhavya Kapoor

[permalink] [raw]
Subject: [PATCH v5] arm64: dts: ti: k3-j721s2: Add support for ADC nodes

J721s2 has two instances of 8 channel ADCs in MCU domain. Add support
for both ADC nodes.

Signed-off-by: Bhavya Kapoor <[email protected]>
---

Changelog v4->v5:
- Modified commit message
- removed status = "disabled"; from tscadc nodes

Link to v4 : https://lore.kernel.org/all/[email protected]/

Testlog : https://gist.github.com/a0498981/058c009e2937b423df02349ca78b4e29

.../dts/ti/k3-j721s2-common-proc-board.dts | 12 ++++++
.../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 38 +++++++++++++++++++
2 files changed, 50 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
index a7aa6cf08acd..90162a0bb3e6 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
@@ -309,3 +309,15 @@ &mcu_mcan1 {
pinctrl-0 = <&mcu_mcan1_pins_default>;
phys = <&transceiver2>;
};
+
+&tscadc0 {
+ adc {
+ ti,adc-channels = <0 1 2 3 4 5 6 7>;
+ };
+};
+
+&tscadc1 {
+ adc {
+ ti,adc-channels = <0 1 2 3 4 5 6 7>;
+ };
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index 0af242aa9816..df8be8803dcb 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -306,4 +306,42 @@ cpts@3d000 {
ti,cpts-periodic-outputs = <2>;
};
};
+
+ tscadc0: tscadc@40200000 {
+ compatible = "ti,am3359-tscadc";
+ reg = <0x00 0x40200000 0x00 0x1000>;
+ interrupts = <GIC_SPI 860 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&k3_pds 0 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 0 0>;
+ assigned-clocks = <&k3_clks 0 2>;
+ assigned-clock-rates = <60000000>;
+ clock-names = "fck";
+ dmas = <&main_udmap 0x7400>,
+ <&main_udmap 0x7401>;
+ dma-names = "fifo0", "fifo1";
+
+ adc {
+ #io-channel-cells = <1>;
+ compatible = "ti,am3359-adc";
+ };
+ };
+
+ tscadc1: tscadc@40210000 {
+ compatible = "ti,am3359-tscadc";
+ reg = <0x00 0x40210000 0x00 0x1000>;
+ interrupts = <GIC_SPI 861 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&k3_pds 1 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 1 0>;
+ assigned-clocks = <&k3_clks 1 2>;
+ assigned-clock-rates = <60000000>;
+ clock-names = "fck";
+ dmas = <&main_udmap 0x7402>,
+ <&main_udmap 0x7403>;
+ dma-names = "fifo0", "fifo1";
+
+ adc {
+ #io-channel-cells = <1>;
+ compatible = "ti,am3359-adc";
+ };
+ };
};
--
2.34.1