toradex-smarc-imx8mp: add spidev overlays

Add the spidev overlays for Toradex SMARC iMX8MP, using the upstream
Linux kernel.

Related-to: ELB-6417
Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>

5 files changed, 108 insertions, 0 deletions

diff --git a/overlays/Makefile b/overlays/Makefile
index 8106a26..80902a8 100644
--- a/overlays/Makefile
+++ b/overlays/Makefile
@@ -55,6 +55,10 @@ dtb-y += colibri-imx7_panel-res-touch-7inch_overlay.dtbo
 dtb-y += colibri-imx7_spidev_overlay.dtbo
 dtb-y += colibri-imx7_vga-640x480_overlay.dtbo
 dtb-y += colibri-imx8x_hmp_overlay.dtbo
+dtb-y += toradex-smarc-imx8mp_spi0-cs0_spidev_overlay.dtbo
+dtb-y += toradex-smarc-imx8mp_spi0-cs1_spidev_overlay.dtbo
+dtb-y += toradex-smarc-imx8mp_spi1-cs0_spidev_overlay.dtbo
+dtb-y += toradex-smarc-imx8mp_spi1-cs1_spidev_overlay.dtbo
 dtb-y += verdin-am62_dsi-to-hdmi_overlay.dtbo
 dtb-y += verdin-am62_dsi-to-lvds_panel-cap-touch-10inch-lvds_overlay.dtbo
 dtb-y += verdin-am62_nau8822-btl_overlay.dtbo
diff --git a/overlays/toradex-smarc-imx8mp_spi0-cs0_spidev_overlay.dts b/overlays/toradex-smarc-imx8mp_spi0-cs0_spidev_overlay.dts
new file mode 100644
index 0000000..abf4988
--- /dev/null
+++ b/overlays/toradex-smarc-imx8mp_spi0-cs0_spidev_overlay.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2025 Toradex
+ *
+ * SMARC SPI0 CS0 spidev overlay.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,smarc-imx8mp";
+};
+
+/* SMARC SPI0 */
+&ecspi1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
diff --git a/overlays/toradex-smarc-imx8mp_spi0-cs1_spidev_overlay.dts b/overlays/toradex-smarc-imx8mp_spi0-cs1_spidev_overlay.dts
new file mode 100644
index 0000000..4b367b9
--- /dev/null
+++ b/overlays/toradex-smarc-imx8mp_spi0-cs1_spidev_overlay.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2025 Toradex
+ *
+ * SMARC SPI0 CS1 spidev overlay.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,smarc-imx8mp";
+};
+
+/* SMARC SPI0 */
+&ecspi1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	spidev@1 {
+		compatible = "rohm,dh2228fv";
+		reg = <1>;
+		spi-max-frequency = <10000000>;
+	};
+};
diff --git a/overlays/toradex-smarc-imx8mp_spi1-cs0_spidev_overlay.dts b/overlays/toradex-smarc-imx8mp_spi1-cs0_spidev_overlay.dts
new file mode 100644
index 0000000..c4cc780
--- /dev/null
+++ b/overlays/toradex-smarc-imx8mp_spi1-cs0_spidev_overlay.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2025 Toradex
+ *
+ * SMARC SPI1 CS0 spidev overlay.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,smarc-imx8mp";
+};
+
+/* SMARC SPI1 */
+&ecspi2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
diff --git a/overlays/toradex-smarc-imx8mp_spi1-cs1_spidev_overlay.dts b/overlays/toradex-smarc-imx8mp_spi1-cs1_spidev_overlay.dts
new file mode 100644
index 0000000..0164680
--- /dev/null
+++ b/overlays/toradex-smarc-imx8mp_spi1-cs1_spidev_overlay.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2025 Toradex
+ *
+ * SMARC SPI1 CS1 spidev overlay.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,smarc-imx8mp";
+};
+
+/* SMARC SPI1 */
+&ecspi2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	spidev@1 {
+		compatible = "rohm,dh2228fv";
+		reg = <1>;
+		spi-max-frequency = <10000000>;
+	};
+};