linux-kernel - Re: [PATCH v5 1/8] misc: Add support for LAN966x PCI device

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Message-ID: <20240912170052.GA677163@bhelgaas>
Date: Thu, 12 Sep 2024 12:00:52 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Herve Codina <herve.codina@...tlin.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	Simon Horman <horms@...nel.org>, Lee Jones <lee@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Lars Povlsen <lars.povlsen@...rochip.com>,
	Steen Hegelund <Steen.Hegelund@...rochip.com>,
	Daniel Machon <daniel.machon@...rochip.com>,
	UNGLinuxDriver@...rochip.com, Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	Allan Nielsen <allan.nielsen@...rochip.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v5 1/8] misc: Add support for LAN966x PCI device

On Thu, Aug 08, 2024 at 05:46:50PM +0200, Herve Codina wrote:
> Add a PCI driver that handles the LAN966x PCI device using a device-tree
> overlay. This overlay is applied to the PCI device DT node and allows to
> describe components that are present in the device.
> 
> The memory from the device-tree is remapped to the BAR memory thanks to
> "ranges" properties computed at runtime by the PCI core during the PCI
> enumeration.
> 
> The PCI device itself acts as an interrupt controller and is used as the
> parent of the internal LAN966x interrupt controller to route the
> interrupts to the assigned PCI INTx interrupt.
> 
> Signed-off-by: Herve Codina <herve.codina@...tlin.com>
> ---
>  drivers/misc/Kconfig          |  24 ++++
>  drivers/misc/Makefile         |   3 +
>  drivers/misc/lan966x_pci.c    | 215 ++++++++++++++++++++++++++++++++++
>  drivers/misc/lan966x_pci.dtso | 167 ++++++++++++++++++++++++++
>  drivers/pci/quirks.c          |   1 +

Acked-by: Bjorn Helgaas <bhelgaas@...gle.com> # drivers/pci/quirks.c

> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index a2ce4e08edf5..bae2dd99017c 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -6245,6 +6245,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa76e, dpc_log_size);
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_XILINX, 0x5020, of_pci_make_dev_node);
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_XILINX, 0x5021, of_pci_make_dev_node);
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REDHAT, 0x0005, of_pci_make_dev_node);
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, 0x9660, of_pci_make_dev_node);
>  
>  /*
>   * Devices known to require a longer delay before first config space access
> -- 
> 2.45.0
>