linux-kernel - Re: [PATCH v5 -next 03/11] irqchip: Add Broadcom bcm2712 MSI-X interrupt controller

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Message-ID: <320db9bc-3610-4336-a691-a8926cdb7e24@suse.de>
Date: Wed, 29 Jan 2025 12:43:25 +0200
From: Stanimir Varbanov <svarbanov@...e.de>
To: Florian Fainelli <florian.fainelli@...adcom.com>,
 Thomas Gleixner <tglx@...utronix.de>, Stanimir Varbanov <svarbanov@...e.de>,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rpi-kernel@...ts.infradead.org,
 linux-pci@...r.kernel.org,
 Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>, Bjorn Helgaas
 <bhelgaas@...gle.com>, Krzysztof Wilczyński <kw@...ux.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Jim Quinlan <jim2101024@...il.com>,
 Nicolas Saenz Julienne <nsaenz@...nel.org>,
 Lorenzo Pieralisi <lpieralisi@...nel.org>,
 Philipp Zabel <p.zabel@...gutronix.de>,
 Andrea della Porta <andrea.porta@...e.com>,
 Phil Elwell <phil@...pberrypi.com>, Jonathan Bell
 <jonathan@...pberrypi.com>, Dave Stevenson <dave.stevenson@...pberrypi.com>
Subject: Re: [PATCH v5 -next 03/11] irqchip: Add Broadcom bcm2712 MSI-X
 interrupt controller

Hi,

On 1/28/25 7:55 PM, Florian Fainelli wrote:
> On 1/27/25 10:10, Thomas Gleixner wrote:
>> On Mon, Jan 20 2025 at 15:01, Stanimir Varbanov wrote:
>>
>>> Add an interrupt controller driver for MSI-X Interrupt Peripheral (MIP)
>>> hardware block found in bcm2712. The interrupt controller is used to
>>> handle MSI-X interrupts from peripherials behind PCIe endpoints like
>>> RP1 south bridge found in RPi5.
>>>
>>> There are two MIPs on bcm2712, the first has 64 consecutive SPIs
>>> assigned to 64 output vectors, and the second has 17 SPIs, but only
>>> 8 of them are consecutive starting at the 8th output vector.
>>>
>>> Signed-off-by: Stanimir Varbanov <svarbanov@...e.de>
>>
>> Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
>>
>> As this is a new controller and required for the actual PCI muck, I
>> think the best way is to take it through the PCI tree, unless someone
>> wants me to pick the whole lot up.
> 
> Agreed, the PCI maintainers should take patches 1 through 9 inclusive,

Just small correction, patch 09/11 [1] has a new v2 at [2]. And I think
PCI maintainer have to take v2.

> and I will take patches 10-11 through the Broadcom ARM SoC tree, Bjorn,
> KW, does that work?

~Stan

[1] [PATCH v5 -next 09/11] PCI: brcmstb: Fix for missing of_node_put

[2]
https://lore.kernel.org/lkml/20250122222955.1752778-1-svarbanov@suse.de/T/