From: mani@kernel.org
To: gregkh@linuxfoundation.org, robh+dt@kernel.org,
mcoquelin.stm32@gmail.com, alexandre.torgue@st.com
Cc: devicetree@vger.kernel.org,
Manivannan Sadhasivam <mani@kernel.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] dt-bindings: serial: Add binding for software flow control in STM32 UART
Date: Sun, 12 Apr 2020 23:39:22 +0530 [thread overview]
Message-ID: <20200412180923.30774-2-mani@kernel.org> (raw)
In-Reply-To: <20200412180923.30774-1-mani@kernel.org>
From: Manivannan Sadhasivam <mani@kernel.org>
Add devicetree binding for software flow control in STM32 UART
controller. While at it, let's also fix one schema error reported by
`make dtbs_check`.
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
---
Rob: Still the `dtbs_check` validation fails. This is due to the
`linux,rs485-enabled-at-boot-time` property. I don't have any idea on how
to fix this.
.../devicetree/bindings/serial/st,stm32-uart.yaml | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
index 238c44192d31..ea5797a1b403 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
@@ -38,13 +38,26 @@ properties:
description: enable hardware flow control
$ref: /schemas/types.yaml#/definitions/flag
+ st,sw-flow-ctrl:
+ description: enable software flow control
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ rts-gpios:
+ description: RTS pin used if st,sw-flow-ctrl is true
+ maxItems: 1
+
+ cts-gpios:
+ description: CTS pin used if st,sw-flow-ctrl is true
+ maxItems: 1
+
dmas:
minItems: 1
maxItems: 2
dma-names:
items:
- enum: [ rx, tx ]
+ - const: rx
+ - const: tx
minItems: 1
maxItems: 2
--
2.17.1
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next prev parent reply other threads:[~2020-04-12 18:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-12 18:09 [PATCH 0/2] Add software flow control support for STM32 UART mani
2020-04-12 18:09 ` mani [this message]
2020-04-12 18:09 ` [PATCH 2/2] tty: serial: Add software flow control support for STM32 USART mani
2020-04-13 9:17 ` [PATCH 0/2] Add software flow control support for STM32 UART Andy Shevchenko
2020-04-16 17:37 ` Manivannan Sadhasivam
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