arm64: dts: imx93-9x9-qsb: add I3C overlay file

Add an overlay file to enable I3C support on the i.MX93, replacing I2C1
with I3C. I3C is compatible with I2C, but it has not yet been enabled in
arm64's defconfig. This overlay allows users to conveniently utilize I3C
on the imx93-9x9-qsb platform until I3C and its driver become more mature
and ready for full switch to I3C.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 13682a18a975c8af12878aaa3483977d43b05d58..bf6602f5a55cb69c0e1269d244be9da98371673e 100644 (file)
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -246,6 +246,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qxp-tqma8xqp-mba8xx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb.dtb
+
+imx93-9x9-qsb-i3c-dtbs += imx93-9x9-qsb.dtb imx93-9x9-qsb-i3c.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb-i3c.dtb
+
 dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-14x14-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-kontron-bl-osm-s.dtb

diff --git a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb-i3c.dtso b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb-i3c.dtso
new file mode 100644 (file)
index 0000000..3fe6209
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb-i3c.dtso
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2024 NXP
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/i3c/i3c.h>
+#include <dt-bindings/usb/pd.h>
+
+#include "imx93-pinfunc.h"
+
+/dts-v1/;
+/plugin/;
+
+&lpi2c1 {
+       status = "disabled";
+};
+
+&i3c1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i3c1>;
+       #address-cells = <3>;
+       #size-cells = <0>;
+       i2c-scl-hz = <400000>;
+       status = "okay";
+
+       tcpc@50 {
+               compatible = "nxp,ptn5110", "tcpci";
+               reg = <0x50 0x00 (I2C_FM | I2C_NO_FILTER_LOW_FREQUENCY)>;
+               interrupt-parent = <&gpio3>;
+               interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
+
+               connector {
+                       compatible = "usb-c-connector";
+                       label = "USB-C";
+                       power-role = "dual";
+                       data-role = "dual";
+                       try-power-role = "sink";
+                       source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+                       sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+                                    PDO_VAR(5000, 20000, 3000)>;
+                       op-sink-microwatt = <15000000>;
+                       self-powered;
+
+                       ports {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               port@0 {
+                                       reg = <0>;
+
+                                       typec1_dr_sw: endpoint {
+                                               remote-endpoint = <&usb1_drd_sw>;
+                                       };
+                               };
+                       };
+               };
+       };
+};
+
+&usb1_drd_sw {
+       remote-endpoint = <&typec1_dr_sw>;
+};
+
+&iomuxc {
+       pinctrl_i3c1: i3c1grp {
+               fsl,pins = <
+                       MX93_PAD_I2C1_SCL__I3C1_SCL     0x40000186
+                       MX93_PAD_I2C1_SDA__I3C1_SDA     0x40000186
+               >;
+       };
+};