linux-kernel - [PATCH 03/10] arm64: dts: ti: k3-am62: Enable SPI nodes at the board level

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Message-ID: <20221018211533.21335-4-afd@ti.com>
Date:   Tue, 18 Oct 2022 16:15:26 -0500
From:   Andrew Davis <afd@...com>
To:     Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bryan Brattlof <bb@...com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     Andrew Davis <afd@...com>
Subject: [PATCH 03/10] arm64: dts: ti: k3-am62: Enable SPI nodes at the board level

SPI nodes defined in the top-level AM62x SoC dtsi files are incomplete
and will not be functional unless they are extended with pinmux
information.

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

Disable the SPI 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@...com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 3 +++
 arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi  | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 295c9bb22e7d..83ac2e45998d 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -318,6 +318,7 @@ main_spi0: spi@...00000 {
 		#size-cells = <0>;
 		power-domains = <&k3_pds 141 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 172 0>;
+		status = "disabled";
 	};
 
 	main_spi1: spi@...10000 {
@@ -328,6 +329,7 @@ main_spi1: spi@...10000 {
 		#size-cells = <0>;
 		power-domains = <&k3_pds 142 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 173 0>;
+		status = "disabled";
 	};
 
 	main_spi2: spi@...20000 {
@@ -338,6 +340,7 @@ main_spi2: spi@...20000 {
 		#size-cells = <0>;
 		power-domains = <&k3_pds 143 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 174 0>;
+		status = "disabled";
 	};
 
 	main_gpio_intr: interrupt-controller@...000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi
index 7f715ebe8e24..28daf476e6a9 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi
@@ -44,6 +44,7 @@ mcu_spi0: spi@...0000 {
 		#size-cells = <0>;
 		power-domains = <&k3_pds 147 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 147 0>;
+		status = "disabled";
 	};
 
 	mcu_spi1: spi@...0000 {
@@ -54,6 +55,7 @@ mcu_spi1: spi@...0000 {
 		#size-cells = <0>;
 		power-domains = <&k3_pds 148 TI_SCI_PD_EXCLUSIVE>;
 		clocks = <&k3_clks 148 0>;
+		status = "disabled";
 	};
 
 	mcu_gpio_intr: interrupt-controller@...0000 {
-- 
2.37.3