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From: Florian Fainelli <florian.fainelli@broadcom.com>
To: Manivannan Sadhasivam <mani@kernel.org>,
	Florian Fainelli <florian.fainelli@broadcom.com>
Cc: linux-pci@vger.kernel.org, "Dom Cobley" <popcornmix@gmail.com>,
	"Phil Elwell" <phil@raspberrypi.com>,
	"Jim Quinlan" <jim2101024@gmail.com>,
	"Broadcom internal kernel review list"
	<bcm-kernel-feedback-list@broadcom.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Hans Zhang" <18255117159@163.com>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-rpi-kernel@lists.infradead.org>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>,
	"open list" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] PCI: brcmstb: Assign pcie->gen from of_pci_get_max_link_speed()
Date: Wed, 6 May 2026 11:15:50 -0700	[thread overview]
Message-ID: <83ceeae6-20e8-40a5-bc0b-6231d2118b6e@broadcom.com> (raw)
In-Reply-To: <t3u7r2ee6gdkjceula2ctvgditgxibwxcpaejc7ekbgdjog3br@c6n6ztzsbhpu>

On 5/6/26 10:08, Manivannan Sadhasivam wrote:
> On Wed, May 06, 2026 at 09:45:37AM -0700, Florian Fainelli wrote:
>> After commit 03f920936977 ("PCI: controller: Validate max-link-speed"),
>> pcie->gen stopped being assigned and as a result the established PCIe
>> link would stop supporting Gen3 speeds on 2712 since pcie->gen is used
>> to populate LnkCntl2 and LnkCap in brcm_pcie_set_gen().
>>
>> Whether the 'max-link-speed' property is not specified, or it exceeds
>> Gen3, resort to the HW defaults.
>>
>> Link: https://github.com/raspberrypi/linux/issues/7343
>> Reported-by: Dom Cobley <popcornmix@gmail.com>
>> Reported-by: Phil Elwell <phil@raspberrypi.com>
>> Fixes: 03f920936977 ("PCI: controller: Validate max-link-speed")
>> Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
> 
> Since this is a 7.1 material:
> 
> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>

Thanks!

> 
>> Change-Id: Ic5431469dd7a6c8b391f84f27119dad876256880
> 
> This Change-Id is irrelevant to upstream.

Should I resubmit or can it be stripped while applying?
-- 
Florian



  reply	other threads:[~2026-05-06 18:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mid:20260501202438.376033-1-florian.fainelli@broadcom.com>
2026-05-06 16:45 ` [PATCH v2] PCI: brcmstb: Assign pcie->gen from of_pci_get_max_link_speed() Florian Fainelli
2026-05-06 17:08   ` Manivannan Sadhasivam
2026-05-06 18:15     ` Florian Fainelli [this message]
2026-05-07  8:48       ` Manivannan Sadhasivam
2026-05-07  2:55   ` Hans Zhang

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