[PATCH 0/3] Enable PWMs

[PATCH 0/3] Enable PWMs

[Judith Mendez]

This patch series enables PWM signal outputs on am625 SK,
am62 lp SK, am62a7 SK, and am62p5 SK boards.

For am625 SK and am62 lp SK, add pinmux, eCAP, and eHRPWM
nodes in the k3-am62x-sk-common.dtsi so as to not duplicate
nodes in the board files.

Judith Mendez (3):
  arm64: dts: ti: k3-am62p5-sk: Enable PWM
  arm64: dts: ti: k3-am62a7-sk: Enable PWM
  arm64: dts: ti: k3-am625-sk: Enable PWM

 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts       | 40 ++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       | 54 +++++++++++++++++++
 .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 40 ++++++++++++++
 3 files changed, 134 insertions(+)

-- 
2.49.0

[PATCH 1/3] arm64: dts: ti: k3-am62p5-sk: Enable PWM

[Judith Mendez]

PWM signals can be routed to the user expansion header on am62p5
SK. Enable eCAP0, eCAP1, eHRPWM0, eHRPWM1 and route the output PWM
signals to pins on J4 header.

Signed-off-by: Judith Mendez <jm@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 54 +++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index d29f524600af0..c2f55cc5a8ebc 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -356,6 +356,32 @@ wlan_en_pins_default: wlan-en-default-pins {
 			AM62PX_IOPAD(0x0124, PIN_INPUT, 7) /* (J25) MMC2_SDCD.GPIO0_71 */
 		>;
 	};
+
+	main_ecap1_pins_default: main-ecap1-default-pins {
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x019c, PIN_OUTPUT, 2) /* (E24) MCASP0_AXR1.ECAP1_IN_APWM_OUT */
+		>;
+	};
+
+	main_ecap2_pins_default: main-ecap2-default-pins {
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x01a4, PIN_OUTPUT, 2) /* (F24) MCASP0_ACLKX.ECAP2_IN_APWM_OUT */
+		>;
+	};
+
+	main_epwm0_pins_default: main-epwm0-default-pins {
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x01b4, PIN_OUTPUT, 2) /* (D20) SPI0_CS0.EHRPWM0_A */
+			AM62PX_IOPAD(0x01b8, PIN_OUTPUT, 2) /* (E20) SPI0_CS1.EHRPWM0_B */
+		>;
+	};
+
+	main_epwm1_pins_default: main-epwm1-default-pins {
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x01bc, PIN_OUTPUT, 2) /* (B21) SPI0_CLK.EHRPWM1_A */
+			AM62PX_IOPAD(0x01c0, PIN_OUTPUT, 2) /* (B20) SPI0_D0.EHRPWM1_B */
+		>;
+	};
 };
 
 &main_i2c0 {
@@ -683,3 +709,31 @@ &mcu_gpio0 {
 &mcu_gpio_intr {
 	status = "reserved";
 };
+
+&ecap1 {
+	/* P36 of J4 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_ecap1_pins_default>;
+	status = "okay";
+};
+
+&ecap2 {
+	/* P11 of J4 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_ecap2_pins_default>;
+	status = "okay";
+};
+
+&epwm0 {
+	/* P24/P26 of J4 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_epwm0_pins_default>;
+	status = "okay";
+};
+
+&epwm1 {
+	/* P23/P19 of J4 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_epwm1_pins_default>;
+	status = "okay";
+};
-- 
2.49.0

[PATCH 2/3] arm64: dts: ti: k3-am62a7-sk: Enable PWM

[Judith Mendez]

PWM signals can be routed to the user expansion header on am62a7
SK. Enable eCAP0, eCAP1, eHRPWM1, and route the output PWM signals
to pins on J3 header.

Signed-off-by: Judith Mendez <jm@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 40 +++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 1c9d95696c839..a9557ee73b831 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -383,6 +383,25 @@ vddshv_sdio_pins_default: vddshv-sdio-default-pins {
 			AM62AX_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */
 		>;
 	};
+
+	main_ecap0_pins_default: main-ecap0-default-pins {
+		pinctrl-single,pins = <
+			AM62AX_IOPAD(0x01b8, PIN_OUTPUT, 3) /* (C16) SPI0_CS1.ECAP0_IN_APWM_OUT */
+		>;
+	};
+
+	main_ecap2_pins_default: main-ecap2-default-pins {
+		pinctrl-single,pins = <
+			AM62AX_IOPAD(0x01a4, PIN_OUTPUT, 2) /* (A19) MCASP0_ACLKX.ECAP2_IN_APWM_OUT */
+		>;
+	};
+
+	main_epwm1_pins_default: main-epwm1-default-pins {
+		pinctrl-single,pins = <
+			AM62AX_IOPAD(0x019c, PIN_OUTPUT, 6) /* (B18) MCASP0_AXR1.EHRPWM1_A */
+			AM62AX_IOPAD(0x01a0, PIN_OUTPUT, 6) /* (B20) MCASP0_AXR0.EHRPWM1_B */
+		>;
+	};
 };
 
 &mcu_pmx0 {
@@ -741,3 +760,24 @@ dpi1_out: endpoint {
 		};
 	};
 };
+
+&ecap0 {
+	/* P26 of J3 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_ecap0_pins_default>;
+	status = "okay";
+};
+
+&ecap2 {
+	/* P11 of J3 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_ecap2_pins_default>;
+	status = "okay";
+};
+
+&epwm1 {
+	/* P36/P33 of J3 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_epwm1_pins_default>;
+	status = "okay";
+};
-- 
2.49.0

[PATCH 3/3] arm64: dts: ti: k3-am625-sk: Enable PWM

[Judith Mendez]

PWM signals can be routed to the user expansion header on am625
SK and am62 lp sk. Enable eCAP0, eCAP1, eHRPWM1, and route the
output PWM signals to pins on J3 header.

Signed-off-by: Judith Mendez <jm@ti.com>
---
 .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index d52cb2a5a589a..20d1437f253d4 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -303,6 +303,25 @@ AM62X_IOPAD(0x074, PIN_OUTPUT, 1) /* (U25) GPMC0_AD14.VOUT0_DATA22 */
 			AM62X_IOPAD(0x078, PIN_OUTPUT, 1) /* (U24) GPMC0_AD15.VOUT0_DATA23 */
 		>;
 	};
+
+	main_ecap0_pins_default: main-ecap0-default-pins {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x01b8, PIN_OUTPUT, 3) /* (C13) SPI0_CS1.ECAP0_IN_APWM_OUT */
+		>;
+	};
+
+	main_ecap2_pins_default: main-ecap2-default-pins {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x01a4, PIN_OUTPUT, 2) /* (B20) MCASP0_ACLKX.ECAP2_IN_APWM_OUT */
+		>;
+	};
+
+	main_epwm1_pins_default: main-epwm1-default-pins {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x019c, PIN_OUTPUT, 6) /* (B18) MCASP0_AXR1.EHRPWM1_A */
+			AM62X_IOPAD(0x01a0, PIN_OUTPUT, 6) /* (E18) MCASP0_AXR0.EHRPWM1_B */
+		>;
+	};
 };
 
 &mcu_pmx0 {
@@ -560,3 +579,24 @@ &mcu_gpio0 {
 &mcu_gpio_intr {
 	status = "reserved";
 };
+
+&ecap0 {
+	/* P26 of J3 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_ecap0_pins_default>;
+	status = "okay";
+};
+
+&ecap2 {
+	/* P11 of J3 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_ecap2_pins_default>;
+	status = "okay";
+};
+
+&epwm1 {
+	/* P36/P33 of J3 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_epwm1_pins_default>;
+	status = "okay";
+};
-- 
2.49.0

Re: [PATCH 0/3] Enable PWMs

[Bryan Brattlof]

On April 21, 2025 thus sayeth Judith Mendez:
> This patch series enables PWM signal outputs on am625 SK,
> am62 lp SK, am62a7 SK, and am62p5 SK boards.
> 
> For am625 SK and am62 lp SK, add pinmux, eCAP, and eHRPWM
> nodes in the k3-am62x-sk-common.dtsi so as to not duplicate
> nodes in the board files.
> 
> Judith Mendez (3):
>   arm64: dts: ti: k3-am62p5-sk: Enable PWM
>   arm64: dts: ti: k3-am62a7-sk: Enable PWM
>   arm64: dts: ti: k3-am625-sk: Enable PWM
> 
>  arch/arm64/boot/dts/ti/k3-am62a7-sk.dts       | 40 ++++++++++++++
>  arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       | 54 +++++++++++++++++++
>  .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 40 ++++++++++++++
>  3 files changed, 134 insertions(+)
> 

Looks Good! Thanks Judith

Reviewed-by: Bryan Brattlof <bb@ti.com>

~Bryan

Re: [PATCH 0/3] Enable PWMs

[Nishanth Menon]

Hi Judith Mendez,

On Mon, 21 Apr 2025 19:08:48 -0500, Judith Mendez wrote:
> This patch series enables PWM signal outputs on am625 SK,
> am62 lp SK, am62a7 SK, and am62p5 SK boards.
> 
> For am625 SK and am62 lp SK, add pinmux, eCAP, and eHRPWM
> nodes in the k3-am62x-sk-common.dtsi so as to not duplicate
> nodes in the board files.
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/3] arm64: dts: ti: k3-am62p5-sk: Enable PWM
      commit: b2fd55f906ff70a39e67d5ad770774622164bef1
[2/3] arm64: dts: ti: k3-am62a7-sk: Enable PWM
      commit: 5aec1169b53969d07cc288814f7eebd2ef01f9a0
[3/3] arm64: dts: ti: k3-am625-sk: Enable PWM
      commit: d864bb528a6725e775d564fd4430762acbb9dd0d

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D