From: <patrice.chotard@foss.st.com>
To: Mark Brown <broonie@kernel.org>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
<robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>
Cc: <linux-spi@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <christophe.kerello@foss.st.com>,
<patrice.chotard@foss.st.com>, <devicetree@vger.kernel.org>
Subject: [PATCH 1/3] dt-bindings: spi: stm32: Add st,dual-flash property in st,stm32-qspi.yaml
Date: Mon, 8 Aug 2022 09:40:49 +0200 [thread overview]
Message-ID: <20220808074051.44736-2-patrice.chotard@foss.st.com> (raw)
In-Reply-To: <20220808074051.44736-1-patrice.chotard@foss.st.com>
From: Patrice Chotard <patrice.chotard@foss.st.com>
Add new property st,dual-flash which allows to use the QSPI interface as a
communication channel using up to 8 qspi line.
This mode can only be used if cs-gpios property is defined.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
Documentation/devicetree/bindings/spi/st,stm32-qspi.yaml | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/spi/st,stm32-qspi.yaml b/Documentation/devicetree/bindings/spi/st,stm32-qspi.yaml
index 6ec6f556182f..5e4f9109799e 100644
--- a/Documentation/devicetree/bindings/spi/st,stm32-qspi.yaml
+++ b/Documentation/devicetree/bindings/spi/st,stm32-qspi.yaml
@@ -46,6 +46,14 @@ properties:
- const: tx
- const: rx
+ st,dual-flash:
+ type: boolean
+ description:
+ Allows to use 8 data lines in case cs-gpios property is defined.
+
+dependencies:
+ st,dual-flash: [ cs-gpios ]
+
required:
- compatible
- reg
--
2.25.1
next prev parent reply other threads:[~2022-08-08 7:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-08 7:40 [PATCH 0/3] spi: stm32_qspi: use QSPI bus as 8 lines communication channel patrice.chotard
2022-08-08 7:40 ` patrice.chotard [this message]
2022-08-08 9:01 ` [PATCH 1/3] dt-bindings: spi: stm32: Add st,dual-flash property in st,stm32-qspi.yaml Krzysztof Kozlowski
2022-08-08 16:08 ` Patrice CHOTARD
2022-08-09 4:18 ` Krzysztof Kozlowski
2022-08-09 5:29 ` Krzysztof Kozlowski
2022-08-09 7:52 ` Patrice CHOTARD
2022-08-09 7:57 ` Krzysztof Kozlowski
2022-08-09 8:00 ` Patrice CHOTARD
2022-08-08 7:40 ` [PATCH 2/3] spi: stm32_qspi: Add transfer_one_message() spi callback patrice.chotard
2022-08-08 13:29 ` Mark Brown
2022-08-08 16:09 ` Patrice CHOTARD
2022-08-08 16:15 ` Mark Brown
2022-08-08 7:40 ` [PATCH 3/3] ARM: dts: stm32: Create separate pinmux for qspi cs pin in stm32mp15-pinctrl.dtsi patrice.chotard
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