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From: Andrew Davis <afd@ti.com>
To: Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
	Tero Kristo <kristo@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Andrew Davis <afd@ti.com>
Subject: [PATCH 05/10] arm64: dts: ti: k3-am64: Enable ECAP nodes at the board level
Date: Mon, 17 Oct 2022 14:25:27 -0500	[thread overview]
Message-ID: <20221017192532.23825-6-afd@ti.com> (raw)
In-Reply-To: <20221017192532.23825-1-afd@ti.com>

ECAP nodes defined in the top-level AM64x SoC dtsi files are incomplete
and will not be functional unless they are extended with pinmux
information. (These and the EPWM nodes could be used to trigger internal
actions but they are not used like that currently)

As the pinmux is only known at the board integration level, these
nodes should only be enabled when provided with this information.

Disable the ECAP nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 3 +++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts  | 9 +--------
 arch/arm64/boot/dts/ti/k3-am642-sk.dts   | 9 +--------
 3 files changed, 5 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 672575f44529..ef1833f65bdc 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -988,6 +988,7 @@ ecap0: pwm@23100000 {
 		power-domains = <&k3_pds 51 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 51 0>;
 		clock-names = "fck";
+		status = "disabled";
 	};
 
 	ecap1: pwm@23110000 {
@@ -997,6 +998,7 @@ ecap1: pwm@23110000 {
 		power-domains = <&k3_pds 52 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 52 0>;
 		clock-names = "fck";
+		status = "disabled";
 	};
 
 	ecap2: pwm@23120000 {
@@ -1006,6 +1008,7 @@ ecap2: pwm@23120000 {
 		power-domains = <&k3_pds 53 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 53 0>;
 		clock-names = "fck";
+		status = "disabled";
 	};
 
 	main_rti0: watchdog@e000000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index cef3afa10c39..43d50ecfb211 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -567,19 +567,12 @@ &pcie0_ep {
 };
 
 &ecap0 {
+	status = "okay";
 	/* PWM is available on Pin 1 of header J12 */
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_ecap0_pins_default>;
 };
 
-&ecap1 {
-	status = "disabled";
-};
-
-&ecap2 {
-	status = "disabled";
-};
-
 &icssg0_mdio {
 	status = "disabled";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 51f4ae165c13..8b9987ccdc1b 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -566,19 +566,12 @@ &pcie0_ep {
 };
 
 &ecap0 {
+	status = "okay";
 	/* PWM is available on Pin 1 of header J3 */
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_ecap0_pins_default>;
 };
 
-&ecap1 {
-	status = "disabled";
-};
-
-&ecap2 {
-	status = "disabled";
-};
-
 &icssg0_mdio {
 	status = "disabled";
 };
-- 
2.37.3


  parent reply	other threads:[~2022-10-17 19:26 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-17 19:25 [PATCH 00/10] AM64x Disable Incomplete DT Nodes Andrew Davis
2022-10-17 19:25 ` [PATCH 01/10] arm64: dts: ti: k3-am64: Enable UART nodes at the board level Andrew Davis
2022-10-17 19:25 ` [PATCH 02/10] arm64: dts: ti: k3-am64: Enable I2C " Andrew Davis
2022-10-17 19:25 ` [PATCH 03/10] arm64: dts: ti: k3-am64: Enable SPI " Andrew Davis
2022-10-17 19:25 ` [PATCH 04/10] arm64: dts: ti: k3-am64: Enable EPWM " Andrew Davis
2022-10-17 19:25 ` Andrew Davis [this message]
2022-10-17 19:25 ` [PATCH 06/10] arm64: dts: ti: k3-am64: Enable PCIe " Andrew Davis
2022-10-17 19:25 ` [PATCH 07/10] arm64: dts: ti: k3-am64: MDIO pinmux should belong to the MDIO node Andrew Davis
2022-10-17 19:25 ` [PATCH 08/10] arm64: dts: ti: k3-am64: Enable MDIO nodes at the board level Andrew Davis
2022-10-17 19:25 ` [PATCH 09/10] arm64: dts: ti: k3-am64: Enable MCAN " Andrew Davis
2022-10-17 19:25 ` [PATCH 10/10] arm64: dts: ti: k3-am64: Enable GPMC and ELM " Andrew Davis
2022-10-18 15:24 ` [PATCH 00/10] AM64x Disable Incomplete DT Nodes Bryan Brattlof
2022-10-27  6:33 ` Vignesh Raghavendra
2022-10-28 13:30 ` Nishanth Menon

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