[PATCH 1/2] spi: dt-bindings: mpfs-spi: permit resets
Conor Dooley
conor at kernel.org
Tue Mar 3 08:41:50 PST 2026
From: Conor Dooley <conor.dooley at microchip.com>
CoreSPI, CoreQSPI and the hardened versions of them on mpfs and
pic64gx have a reset pin. For the first two, usually this is wired to
a common fabric reset not managed by software and for the latter two
the platform firmware takes them out of reset on first-party boards
(or those using modified versions of the vendor firmware), but not all
boards may take this approach. Permit providing a reset in devicetree
for Linux, or other devicetree-consuming software, to use.
Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
---
CC: Conor Dooley <conor.dooley at microchip.com>
CC: Daire McNamara <daire.mcnamara at microchip.com>
CC: Mark Brown <broonie at kernel.org>
CC: Rob Herring <robh at kernel.org>
CC: Krzysztof Kozlowski <krzk+dt at kernel.org>
CC: linux-riscv at lists.infradead.org
CC: linux-spi at vger.kernel.org
CC: devicetree at vger.kernel.org
CC: linux-kernel at vger.kernel.org
---
Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml b/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
index 636338d24bdfb..b7d8acc924be4 100644
--- a/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
@@ -41,6 +41,9 @@ properties:
clocks:
maxItems: 1
+ resets:
+ maxItems: 1
+
microchip,apb-datawidth:
description: APB bus data width in bits.
$ref: /schemas/types.yaml#/definitions/uint32
--
2.51.0
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