linux-kernel - [PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: fix SPI hardware CS issue

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Message-ID: <20260112175350.79270-1-ivitro@gmail.com>
Date: Mon, 12 Jan 2026 17:53:45 +0000
From: Vitor Soares <ivitro@...il.com>
To: Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Vitor Soares <vitor.soares@...adex.com>,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	ivitro@...il.com
Subject: [PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: fix SPI hardware CS issue

From: Vitor Soares <vitor.soares@...adex.com>

Hardware chip select does not work correctly on main_spi0 and main_spi2
controllers on the Aquila AM69 module. Testing revealed main_spi2 loses
CS state during runtime PM suspend, while main_spi0 cannot drive CS HIGH
when bus is idle. This series switches both controllers to use GPIO-based
chip select instead.

Vitor Soares (2):
  arm64: dts: ti: k3-am69-aquila: change main_spi0/2 CS to GPIO mode
  arm64: dts: ti: k3-am69-aquila-clover: change main_spi2 CS0 to GPIO
    mode

 arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts | 3 ++-
 arch/arm64/boot/dts/ti/k3-am69-aquila.dtsi       | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

-- 
2.52.0