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From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: linux-serial@vger.kernel.org, Jiri Slaby <jirislaby@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, "Lukas Wunner" <lukas@wunner.de>,
	"Johan Hovold" <johan@kernel.org>,
	"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Heikki Krogerus" <heikki.krogerus@linux.intel.com>,
	"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	devicetree@vger.kernel.org
Subject: [PATCH 4/7] dt_bindings: snps-dw-apb-uart: Add RS485
Date: Wed,  2 Mar 2022 11:56:03 +0200	[thread overview]
Message-ID: <20220302095606.14818-5-ilpo.jarvinen@linux.intel.com> (raw)
In-Reply-To: <20220302095606.14818-1-ilpo.jarvinen@linux.intel.com>

Add RS485 enable & line polarity properties.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 .../bindings/serial/snps-dw-apb-uart.yaml       | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
index 12137fe80acf..8d440afabb1f 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
@@ -103,6 +103,23 @@ properties:
       register. Define this if your serial port does not use this pin.
     type: boolean
 
+  snps,rs485-interface-en:
+    description: Use true RS-485 DE and RE signals (in contrast to RS-485
+      emulation using RTS). Requires IP version 4 or above.
+    type: boolean
+
+  snps,de-active-high:
+    description: Defines the polarity of driver enable (DE_EN) signal.
+      Meaningful only with snps,rs485-interface-en. True indicates active
+      high.
+    type: boolean
+
+  snps,re-active-high:
+    description: Defines the polarity of receiver enable (RE_EN) signal.
+      Meaningful only with snps,rs485-interface-en. True indicates active
+      high.
+    type: boolean
+
 required:
   - compatible
   - reg
-- 
2.30.2


  parent reply	other threads:[~2022-03-02  9:57 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-02  9:55 [PATCH 0/7] Add RS485 support to DW UART Ilpo Järvinen
2022-03-02  9:56 ` [PATCH 1/7] serial: 8250_dwlib: RS485 HW half duplex support Ilpo Järvinen
2022-03-06 18:48   ` Lukas Wunner
2022-03-06 22:07     ` Andy Shevchenko
2022-03-07  9:19       ` Ilpo Järvinen
2022-03-07 19:18         ` Lukas Wunner
2022-03-07 19:39           ` Andy Shevchenko
2022-03-08 12:16             ` Ilpo Järvinen
2022-03-08 12:22               ` Lukas Wunner
2022-03-08 12:59                 ` Ilpo Järvinen
2022-03-08 14:50                   ` Lukas Wunner
2022-03-08 14:53                     ` Andy Shevchenko
2022-03-08 20:30                       ` Lukas Wunner
2022-03-09  9:51                         ` Ilpo Järvinen
2022-03-07 10:54     ` Ilpo Järvinen
2022-03-09  8:52       ` Lukas Wunner
2022-03-09 12:19       ` Ilpo Järvinen
2022-03-09 12:59         ` Lukas Wunner
2022-03-02  9:56 ` [PATCH 2/7] serial: 8250_dwlib: RS485 HW full " Ilpo Järvinen
2022-03-06 18:51   ` Lukas Wunner
2022-03-07  9:22     ` Ilpo Järvinen
2022-03-02  9:56 ` [RFC PATCH 3/7] serial: 8250_dwlib: Implement SW half " Ilpo Järvinen
2022-03-06 19:21   ` Lukas Wunner
2022-03-06 22:13     ` Andy Shevchenko
2022-03-02  9:56 ` Ilpo Järvinen [this message]
2022-03-02 17:47   ` [PATCH 4/7] dt_bindings: snps-dw-apb-uart: Add RS485 Rob Herring
2022-03-02  9:56 ` [RFC PATCH 5/7] serial: termbits: ADDRB to indicate 9th bit addressing mode Ilpo Järvinen
2022-03-02  9:56   ` Ilpo Järvinen
2022-03-02  9:56   ` Ilpo Järvinen
2022-03-02  9:56 ` [RFC PATCH 6/7] serial: General support for multipoint addresses Ilpo Järvinen
2022-03-02  9:56   ` Ilpo Järvinen
2022-03-02  9:56   ` Ilpo Järvinen
2022-03-06 19:40   ` Lukas Wunner
2022-03-06 19:40     ` Lukas Wunner
2022-03-06 19:40     ` Lukas Wunner
2022-03-07  9:48     ` Ilpo Järvinen
2022-03-07  9:48       ` Ilpo Järvinen
2022-03-07  9:48       ` Ilpo Järvinen
2022-03-09 19:05       ` Lukas Wunner
2022-03-09 19:05         ` Lukas Wunner
2022-03-09 19:05         ` Lukas Wunner
2022-03-10 12:29         ` Ilpo Järvinen
2022-03-10 12:29           ` Ilpo Järvinen
2022-03-10 12:29           ` Ilpo Järvinen
2022-03-10 14:09         ` Andy Shevchenko
2022-03-10 14:09           ` Andy Shevchenko
2022-03-10 14:09           ` Andy Shevchenko
2022-03-02  9:56 ` [RFC PATCH 7/7] serial: 8250_dwlib: Support for 9th bit multipoint addressing Ilpo Järvinen

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