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From: Rob Herring <robh@kernel.org>
To: Lizhi Hou <lizhi.hou@xilinx.com>
Cc: linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
	yilun.xu@intel.com, maxz@xilinx.com, sonal.santan@xilinx.com,
	yliu@xilinx.com, michal.simek@xilinx.com, stefanos@xilinx.com,
	trix@redhat.com, mdf@kernel.org, dwmw2@infradead.org,
	linux-kernel@vger.kernel.org, Max Zhen <max.zhen@xilinx.com>
Subject: Re: [PATCH V1 RESEND 4/4] of: enhance overlay applying interface to specific target base node
Date: Thu, 10 Mar 2022 14:07:46 -0600	[thread overview]
Message-ID: <Yipakr7/nn3McDbd@robh.at.kernel.org> (raw)
In-Reply-To: <20220305052304.726050-5-lizhi.hou@xilinx.com>

On Fri, Mar 04, 2022 at 09:23:04PM -0800, Lizhi Hou wrote:
> The self discovered device, e.g. PCIe device, may carry a device tree
> overlay to describe its downstream devices. In this case, the device node
> is created dynamically by device driver. And in the overlay it does not
> specify a fixed target path. Instead, a relative path to the device node
> is specified.
> Thus, a new parameter is added to overlay applying interface. This
> parameter is the pointer of target base node. Then the entire overlay
> target path is target base node path plus the relative path specified in
> the device tree overlay.
> 
> Signed-off-by: Sonal Santan <sonal.santan@xilinx.com>
> Signed-off-by: Max Zhen <max.zhen@xilinx.com>
> Signed-off-by: Lizhi Hou <lizhi.hou@xilinx.com>
> ---
>  drivers/fpga/xrt/mgmt/Makefile       |  1 +
>  drivers/fpga/xrt/mgmt/dt-test.dts    | 15 ++++++++++
>  drivers/fpga/xrt/mgmt/dt-test.h      | 15 ++++++++++
>  drivers/fpga/xrt/mgmt/xmgmt-drv.c    | 41 +++++++++++++++++++++++++++-
>  drivers/gpu/drm/rcar-du/rcar_du_of.c |  2 +-
>  drivers/of/overlay.c                 | 37 +++++++++++++++++--------
>  drivers/of/unittest.c                |  2 +-
>  include/linux/of.h                   |  2 +-

The DT changes should be a 2nd patch.

That's the least of all the problems with this series though.

Rob

  reply	other threads:[~2022-03-10 20:07 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-05  5:23 [PATCH V1 RESEND 0/4] Infrastructure to define apertures in a PCIe device with a flattened device tree Lizhi Hou
2022-03-05  5:23 ` [PATCH V1 RESEND 1/4] pci: add interface to create pci-ep device tree node Lizhi Hou
2022-03-10 10:02   ` Dan Carpenter
2022-03-10 19:34   ` Bjorn Helgaas
2022-06-21 15:12   ` Manivannan Sadhasivam
2022-03-05  5:23 ` [PATCH V1 RESEND 2/4] Documentation: devicetree: bindings: add binding for PCIe endpoint bus Lizhi Hou
2022-03-06 15:37   ` Tom Rix
2022-03-07 14:07     ` Rob Herring
2022-04-22 21:57       ` Lizhi Hou
2022-05-13 15:19         ` Lizhi Hou
2022-06-21 15:06   ` Manivannan Sadhasivam
2022-03-05  5:23 ` [PATCH V1 RESEND 3/4] fpga: xrt: management physical function driver Lizhi Hou
2022-06-21 15:16   ` Manivannan Sadhasivam
2022-03-05  5:23 ` [PATCH V1 RESEND 4/4] of: enhance overlay applying interface to specific target base node Lizhi Hou
2022-03-10 20:07   ` Rob Herring [this message]
2022-03-10 19:27 ` [PATCH V1 RESEND 0/4] Infrastructure to define apertures in a PCIe device with a flattened device tree Bjorn Helgaas

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