From: Claudiu Beznea <claudiu.beznea@tuxon.dev>
To: John Madieu <john.madieu.xa@bp.renesas.com>,
claudiu.beznea.uj@bp.renesas.com, lpieralisi@kernel.org,
kwilczynski@kernel.org, mani@kernel.org, geert+renesas@glider.be,
krzk+dt@kernel.org
Cc: robh@kernel.org, bhelgaas@google.com, conor+dt@kernel.org,
magnus.damm@gmail.com, biju.das.jz@bp.renesas.com,
linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
john.madieu@gmail.com
Subject: Re: [PATCH 11/16] PCI: rzg3s-host: Add PCIe Gen3 (8.0 GT/s) link speed support
Date: Mon, 19 Jan 2026 20:21:40 +0200 [thread overview]
Message-ID: <2649d775-e33d-439b-af52-8bcddb9823c4@tuxon.dev> (raw)
In-Reply-To: <20260114153337.46765-12-john.madieu.xa@bp.renesas.com>
On 1/14/26 17:33, John Madieu wrote:
> Extend the link speed configuration to support Gen3 (8.0 GT/s) in addition
> to Gen2 (5.0 GT/s). This is required for RZ/G3E PCIe host support, which is
> Gen3 capable.
>
> Instead of relying on DT max-link-speed for configuration, read the hardware
> capabilities from the PCI_EXP_LNKCAP register to determine the maximum
> supported speed. The DT max-link-speed property is now only used as an
> optional limit when explicitly specified, which aligns with PCIe subsystem
> expectations.
>
> Signed-off-by: John Madieu<john.madieu.xa@bp.renesas.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
next prev parent reply other threads:[~2026-01-19 18:21 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-14 15:33 [PATCH 00/16] PCI: renesas: Add RZ/G3E PCIe controller support John Madieu
2026-01-14 15:33 ` [PATCH 01/16] PCI: rzg3s-host: Fix reset handling in probe error path John Madieu
2026-01-15 13:13 ` claudiu beznea
2026-01-16 21:00 ` John Madieu
2026-01-19 14:03 ` Claudiu Beznea
2026-01-20 20:11 ` John Madieu
2026-01-19 14:04 ` Claudiu Beznea
2026-01-20 20:05 ` John Madieu
2026-01-21 8:10 ` Biju Das
2026-01-14 15:33 ` [PATCH 02/16] PCI: rzg3s-host: Fix inbound window size tracking John Madieu
2026-01-19 14:06 ` Claudiu Beznea
2026-01-14 15:33 ` [PATCH 03/16] clk: renesas: rzv2h-cpg: Add support for init_off clocks John Madieu
2026-01-20 10:49 ` Geert Uytterhoeven
2026-01-20 19:08 ` John Madieu
2026-01-22 16:21 ` John Madieu
2026-01-22 16:29 ` Geert Uytterhoeven
2026-01-23 11:29 ` John Madieu
2026-01-23 11:39 ` Lad, Prabhakar
2026-01-23 12:32 ` John Madieu
2026-01-14 15:33 ` [PATCH 04/16] clk: renesas: r9a09g047: Add PCIe clocks and reset John Madieu
2026-01-20 11:03 ` Geert Uytterhoeven
2026-01-20 14:04 ` John Madieu
2026-01-14 15:33 ` [PATCH 05/16] dt-bindings: PCI: renesas,r9a08g045s33-pcie: Document RZ/G3E SoC John Madieu
2026-01-15 13:48 ` Krzysztof Kozlowski
2026-01-16 20:55 ` John Madieu
2026-01-15 13:55 ` claudiu beznea
2026-01-14 15:33 ` [PATCH 06/16] PCI: rzg3s-host: Make SYSC register offsets SoC-specific John Madieu
2026-01-19 18:14 ` Claudiu Beznea
2026-01-20 19:58 ` John Madieu
2026-01-14 15:33 ` [PATCH 07/16] PCI: rzg3s-host: Make configuration reset lines optional John Madieu
2026-01-14 22:38 ` Bjorn Helgaas
2026-01-15 9:44 ` John Madieu
2026-01-19 18:14 ` Claudiu Beznea
2026-01-14 15:33 ` [PATCH 08/16] PCI: rzg3s-host: Make inbound window setup SoC-specific John Madieu
2026-01-19 18:15 ` Claudiu Beznea
2026-01-20 19:52 ` John Madieu
2026-01-14 15:33 ` [PATCH 09/16] PCI: rzg3s-host: Add SoC-specific configuration and initialization callbacks John Madieu
2026-01-14 22:40 ` Bjorn Helgaas
2026-01-15 9:43 ` John Madieu
2026-01-19 18:21 ` Claudiu Beznea
2026-01-14 15:33 ` [PATCH 10/16] PCI: rzg3s-host: Explicitly set class code for RZ/G3E compatibility John Madieu
2026-01-15 13:49 ` kernel test robot
2026-01-14 15:33 ` [PATCH 11/16] PCI: rzg3s-host: Add PCIe Gen3 (8.0 GT/s) link speed support John Madieu
2026-01-19 18:21 ` Claudiu Beznea [this message]
2026-01-14 15:33 ` [PATCH 12/16] PCI: rzg3s-host: Add support for RZ/G3E PCIe controller John Madieu
2026-01-19 18:25 ` Claudiu Beznea
2026-01-14 15:33 ` [PATCH 13/16] arm64: dts: renesas: r9a09g047: Add PCIe node John Madieu
2026-01-14 15:33 ` [PATCH 14/16] arm64: dts: renesas: r9a09g047e57-smarc-som: Add PCIe reference clock John Madieu
2026-01-14 15:33 ` [PATCH 15/16] arm64: dts: renesas: r9a09g047e57-smarc: Add PCIe pincontrol John Madieu
2026-01-14 15:33 ` [PATCH 16/16] arm64: dts: renesas: r9a09g047e57-smarc: Enable PCIe John Madieu
2026-01-14 16:19 ` Biju Das
2026-01-14 16:34 ` John Madieu
2026-01-14 16:50 ` Biju Das
2026-01-21 10:25 ` Geert Uytterhoeven
2026-01-21 10:27 ` John Madieu
2026-01-14 17:47 ` [PATCH 00/16] PCI: renesas: Add RZ/G3E PCIe controller support Biju Das
2026-01-15 9:45 ` John Madieu
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