diff --git a/overlay/tegra234-p3767-0000-common-hdr40.dtsi b/overlay/tegra234-p3767-0000-common-hdr40.dtsi
index 2dd28d6..a4406bd 100644
--- a/overlay/tegra234-p3767-0000-common-hdr40.dtsi
+++ b/overlay/tegra234-p3767-0000-common-hdr40.dtsi
@@ -61,6 +61,13 @@
 					nvidia,tristate = <TEGRA_PIN_DISABLE>;
 					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
 				};
+				hdr40-pin15 {
+					nvidia,pins = "soc_gpio39_pn1";
+					nvidia,function = "gp";
+					nvidia,pin-group = "pwm1";
+					nvidia,tristate = <TEGRA_PIN_DISABLE>;
+					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+				};
 				hdr40-pin16 {
 					nvidia,pins = "spi3_cs0_py3";
 					nvidia,function = "spi3";
@@ -123,6 +130,40 @@
 				hdr40-pin28 {
 					nvidia,pins = "gen2_i2c_scl_pcc7";
 				};
+				hdr40-pin29 {
+					nvidia,pins = "soc_gpio32_pq5";
+					nvidia,function = "extperiph3";
+					nvidia,pin-group = "extperiph3_clk";
+					nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+					nvidia,tristate = <TEGRA_PIN_DISABLE>;
+					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+					nvidia,io-high-voltage = <TEGRA_PIN_DISABLE>;
+					nvidia,lpdr = <TEGRA_PIN_DISABLE>;
+				};
+				hdr40-pin31 {
+					nvidia,pins = "soc_gpio33_pq6";
+					nvidia,function = "extperiph4";
+					nvidia,pin-group = "extperiph4_clk";
+					nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+					nvidia,tristate = <TEGRA_PIN_DISABLE>;
+					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+					nvidia,io-high-voltage = <TEGRA_PIN_DISABLE>;
+					nvidia,lpdr = <TEGRA_PIN_DISABLE>;
+				};
+				hdr40-pin32 {
+					nvidia,pins = "soc_gpio19_pg6";
+					nvidia,function = "gp";
+					nvidia,pin-group = "pwm7";
+					nvidia,tristate = <TEGRA_PIN_DISABLE>;
+					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+				};
+				hdr40-pin33 {
+					nvidia,pins = "soc_gpio21_ph0";
+					nvidia,function = "gp";
+					nvidia,pin-group = "pwm5";
+					nvidia,tristate = <TEGRA_PIN_DISABLE>;
+					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+				};
 				hdr40-pin35 {
 					nvidia,pins = "soc_gpio44_pi2";
 					nvidia,function = "i2s2";