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Message-Id: <20230619165525.1035243-5-dario.binacchi@amarulasolutions.com>
Date: Mon, 19 Jun 2023 18:55:23 +0200
From: Dario Binacchi <dario.binacchi@...rulasolutions.com>
To: linux-kernel@...r.kernel.org
Cc: Philippe Cornu <philippe.cornu@...s.st.com>,
Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>,
Amarula patchwork <linux-amarula@...rulasolutions.com>,
michael@...rulasolutions.com,
Dario Binacchi <dario.binacchi@...rulasolutions.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Conor Dooley <conor+dt@...nel.org>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Yannick Fertre <yannick.fertre@...s.st.com>,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org,
linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH v4 4/6] dt-bindings: display: stm32-ltdc: add optional st,fb-bpp property
Boards that use the STM32F{4,7} series have limited amounts of RAM. The
added property allows to size, within certain limits, the memory footprint
required by the framebuffer.
Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
---
(no changes since v1)
.../devicetree/bindings/display/st,stm32-ltdc.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml b/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
index d6ea4d62a2cf..1c3a3653579f 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
@@ -42,6 +42,12 @@ properties:
- for internal dpi input of the MIPI DSI host controller.
Note: These 2 endpoints cannot be activated simultaneously.
+ st,fb-bpp:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ bit depth of framebuffer (8, 16 or 32)
+ maxItems: 1
+
required:
- compatible
- reg
--
2.32.0
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