linux-kernel - [PATCH v4 1/2] dt-bindings: sram: Document reg-io-width property

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Message-Id: <20240827182450.3608307-2-florian.fainelli@broadcom.com>
Date: Tue, 27 Aug 2024 11:24:49 -0700
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Sudeep Holla <sudeep.holla@....com>,
	Cristian Marussi <cristian.marussi@....com>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list),
	arm-scmi@...r.kernel.org (open list:SYSTEM CONTROL & POWER/MANAGEMENT INTERFACE),
	justin.chen@...adcom.com,
	opendmb@...il.com,
	kapil.hali@...adcom.com,
	bcm-kernel-feedback-list@...adcom.com,
	Arnd Bergmann <arnd@...db.de>
Subject: [PATCH v4 1/2] dt-bindings: sram: Document reg-io-width property

Some SRAMs need to be accessed with a specific access width, define
the 'reg-io-width' property specifying such access sizes.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 Documentation/devicetree/bindings/sram/sram.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentation/devicetree/bindings/sram/sram.yaml
index 0922d1f71ba8..7c1337e159f2 100644
--- a/Documentation/devicetree/bindings/sram/sram.yaml
+++ b/Documentation/devicetree/bindings/sram/sram.yaml
@@ -101,6 +101,12 @@ patternProperties:
           IO mem address range, relative to the SRAM range.
         maxItems: 1
 
+      reg-io-width:
+        description:
+          The size (in bytes) of the IO accesses that should be performed on the
+          SRAM.
+        enum: [1, 2, 4, 8]
+
       pool:
         description:
           Indicates that the particular reserved SRAM area is addressable
-- 
2.34.1