linux-kernel - [PATCH] dt-bindings: spi: stm32-qspi: add dma properties

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Message-ID: <1561621439-7305-1-git-send-email-ludovic.Barre@st.com>
Date:   Thu, 27 Jun 2019 09:43:58 +0200
From:   Ludovic Barre <ludovic.Barre@...com>
To:     Mark Brown <broonie@...nel.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        <linux-mtd@...ts.infradead.org>, <linux-spi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <devicetree@...r.kernel.org>, Ludovic Barre <ludovic.barre@...com>
Subject: [PATCH] dt-bindings: spi: stm32-qspi: add dma properties

From: Ludovic Barre <ludovic.barre@...com>

This patch adds description of dma properties (optional).

Signed-off-by: Ludovic Barre <ludovic.barre@...com>
---
 Documentation/devicetree/bindings/spi/spi-stm32-qspi.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/spi/spi-stm32-qspi.txt b/Documentation/devicetree/bindings/spi/spi-stm32-qspi.txt
index adeeb63..bfc038b 100644
--- a/Documentation/devicetree/bindings/spi/spi-stm32-qspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-stm32-qspi.txt
@@ -19,8 +19,11 @@ Required properties:
 - reg: chip-Select number (QSPI controller may connect 2 flashes)
 - spi-max-frequency: max frequency of spi bus
 
-Optional property:
+Optional properties:
 - spi-rx-bus-width: see ./spi-bus.txt for the description
+- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
+Documentation/devicetree/bindings/dma/dma.txt.
+- dma-names: DMA request names should include "tx" and "rx" if present.
 
 Example:
 
-- 
2.7.4