sample: sensor: Add support for temperature sensor on RT700 cm33_cpu1

Add support for p3t1755 temperature sensor on RT700 cm33_cpu1 core

Signed-off-by: Lucien Zhao <[email protected]>

Author: lucien-nxp

boards/nxp/mimxrt700_evk/board.c

@@ -428,6 +428,12 @@ void board_early_init_hook(void)
 	CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, usbClockFreq);
 	CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, usbClockFreq);
 #endif
+
+#if (DT_NODE_HAS_STATUS(DT_NODELABEL(i3c2), okay) || \
+		DT_NODE_HAS_STATUS(DT_NODELABEL(i3c3), okay))
+	CLOCK_AttachClk(kSENSE_BASE_to_I3C23);
+	CLOCK_SetClkDiv(kCLOCK_DivI3c23Clk, 4U);
+#endif
 }
 
 static void GlikeyWriteEnable(GLIKEY_Type *base, uint8_t idx)

boards/nxp/mimxrt700_evk/doc/index.rst

@@ -75,6 +75,8 @@ the hardware features below.
 +-----------+------------+-------------------------------------+
 | I2C       | on-chip    | i2c                                 |
 +-----------+------------+-------------------------------------+
+| I3C       | on-chip    | i3c                                 |
++-----------+------------+-------------------------------------+
 | GPIO      | on-chip    | gpio                                |
 +-----------+------------+-------------------------------------+
 | UART      | on-chip    | serial port-polling;                |

boards/nxp/mimxrt700_evk/mimxrt700_evk-pinctrl.dtsi

@@ -75,4 +75,21 @@
 			nxp,analog-mode;
 		};
 	};
+
+	pinmux_i3c3: pinmux_i3c3 {
+		group0 {
+			pinmux = <I3C3_SDA_PIO8_21>,
+				<I3C3_SCL_PIO8_22>;
+			slew-rate = "normal";
+			drive-strength = "normal";
+			input-enable;
+			bias-pull-up;
+		};
+		group1 {
+			pinmux = <I3C3_PUR_PIO8_20>;
+			slew-rate = "normal";
+			drive-strength = "normal";
+			input-enable;
+		};
+	};
 };

boards/nxp/mimxrt700_evk/mimxrt700_evk_mimxrt798s_cm33_cpu1.dts

@@ -9,6 +9,7 @@
 #include <nxp/nxp_rt7xx_cm33_cpu1.dtsi>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include "mimxrt700_evk-pinctrl.dtsi"
+#include <freq.h>
 
 / {
 	model = "NXP MIMXRT700-EVK board";
@@ -17,6 +18,7 @@
 	aliases {
 		led0 = &red_led;
 		sw0 = &user_button_1;
+		ambient-temp0 = &p3t1755;
 	};
 
 	chosen {
@@ -80,3 +82,18 @@
 &gpio8 {
 	status = "okay";
 };
+
+&i3c3 {
+	status = "okay";
+	pinctrl-0 = <&pinmux_i3c3>;
+	pinctrl-names = "default";
+	i2c-scl-hz = <DT_FREQ_K(400)>;
+	i3c-scl-hz = <DT_FREQ_M(4)>;
+	i3c-od-scl-hz = <DT_FREQ_K(1500)>;
+
+	p3t1755: p3t1755@4800000236152a0090 {
+		compatible = "nxp,p3t1755";
+		reg = <0x48 0x0236 0x152a0090>;
+		status = "okay";
+	};
+};

boards/nxp/mimxrt700_evk/mimxrt700_evk_mimxrt798s_cm33_cpu1.yaml

@@ -1,5 +1,5 @@
 #
-# Copyright 2024 NXP
+# Copyright 2024-2025 NXP
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -18,4 +18,5 @@ supported:
   - gpio
   - uart
   - adc
+  - i3c
 vendor: nxp

samples/sensor/thermometer/sample.yaml

@@ -34,6 +34,7 @@ tests:
         - "Temperature is [0-9|.]+°C"
     integration_platforms:
       - frdm_mcxn947/mcxn947/cpu0 # p3t1755
+      - mimxrt700_evk/mimxrt798s/cm33_cpu1 # p3t1755
     depends_on:
       - i3c
     filter: dt_alias_exists("ambient-temp0")