From: m.brock@vanmierlo.com
To: "Guntupalli, Manikanta" <manikanta.guntupalli@amd.com>
Cc: Rob Herring <robh@kernel.org>,
gregkh@linuxfoundation.org, krzysztof.kozlowski+dt@linaro.org,
michal.simek@xilinx.com, linux-serial@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
jirislaby@kernel.org, linux-arm-kernel@lists.infradead.org,
"Simek, Michal" <michal.simek@amd.com>,
"git (AMD-Xilinx)" <git@amd.com>,
"Pandey, Radhey Shyam" <radhey.shyam.pandey@amd.com>,
"Datta, Shubhrajyoti" <shubhrajyoti.datta@amd.com>,
"Goud, Srinivas" <srinivas.goud@amd.com>,
manion05gk@gmail.com
Subject: Re: [PATCH 1/2] dt-bindings: Add optional gpio property to uartps node to support rs485
Date: Thu, 04 May 2023 14:14:33 +0200 [thread overview]
Message-ID: <4f59ac40e5dabab01560888782f7ea0d@vanmierlo.com> (raw)
In-Reply-To: <DM4PR12MB6109C2BCDFD616AE37E10B9A8C6F9@DM4PR12MB6109.namprd12.prod.outlook.com>
Guntupalli, Manikanta wrote 2023-05-02 12:14:
>> > + txrx-gpios:
>> > + description: Optional GPIO to switch transmit and receive modes via
>> pmod.
>>
>> What's pmod?
> Pmod is galvanically-isolated RS-485/RS-422 transceivers with a
> built-in isolated DC-DC converter, that eliminates the need for a
> separate isolated power supply in space constrained isolated designs.
AFAIK Pmod is an open standard connector by Digilent and present on many
Xilinx
demo boards. It does not involve any galvanic isolation.
https://digilent.com/reference/_media/reference/pmod/pmod-interface-specification-1_3_1.pdf
The ISOW14x2 on the particular board you're using does however give
isolation.
But you cannot name that board Pmod.
Maarten
next prev parent reply other threads:[~2023-05-04 13:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-26 12:29 [PATCH 0/2] Add rs485 support to uartps driver Manikanta Guntupalli
2023-04-26 12:29 ` [PATCH 1/2] dt-bindings: Add optional gpio property to uartps node to support rs485 Manikanta Guntupalli
2023-04-27 16:43 ` Rob Herring
2023-05-02 10:14 ` Guntupalli, Manikanta
2023-05-02 10:19 ` Krzysztof Kozlowski
2023-05-02 10:57 ` Michal Simek
2023-05-02 11:10 ` Krzysztof Kozlowski
2023-05-04 12:14 ` m.brock [this message]
2023-04-26 12:29 ` [PATCH 2/2] tty: serial: uartps: Add rs485 support to uartps driver Manikanta Guntupalli
2023-05-04 12:22 ` [PATCH 0/2] " m.brock
2023-05-10 16:26 ` Guntupalli, Manikanta
2023-05-11 7:26 ` Michal Simek
2023-05-14 11:01 ` m.brock
2023-05-15 6:35 ` Michal Simek
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