linux-kernel - [PATCH v2 0/3] mailbox: zynqmp: Enable Bufferless IPIs for Versal based SOCs

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Date: Thu, 11 Jan 2024 09:22:23 -0800
From: Ben Levinsky <ben.levinsky@....com>
To: <jassisinghbrar@...il.com>, <robh+dt@...nel.org>,
	<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
	<michal.simek@....com>, <shubhrajyoti.datta@....com>,
	<jaswinder.singh@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <ben.levinsky@....com>
Subject: [PATCH v2 0/3] mailbox: zynqmp: Enable Bufferless IPIs for Versal based SOCs

For Xilinx-AMD Versal and Versal NET SOC's there exist also
inter-processor-interrupts (IPIs) without IPI Message Buffers. For these
enable use of IPI Mailbox driver for send/receive as well.

This is enabled with new compatible string: "xlnx,versal-ipi-mailbox"

Original, buffered usage for ZynqMP based SOC is still supported.

Note that the linked patch provides corresponding bindings.
Depends on: https://lore.kernel.org/all/20231214054224.957336-3-tanmay.shah@amd.com/T/

v2:
- formatting in 2/3 patch
- remove extra handling in 3/3 versal_ipi_setup()

Ben Levinsky (3):
  mailbox: zynqmp: Move of_match structure closer to usage
  mailbox: zynqmp: Move buffered IPI setup to of_match selected routine
  mailbox: zynqmp: Enable Bufferless IPI usage on Versal-based SOC's

 drivers/mailbox/zynqmp-ipi-mailbox.c | 258 ++++++++++++++++++++++-----
 1 file changed, 214 insertions(+), 44 deletions(-)

-- 
2.25.1