From: Rob Herring <robh@kernel.org>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: "Alexey Malahov" <Alexey.Malahov@baikalelectronics.ru>,
"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Serge Semin" <fancer.lancer@gmail.com>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Jingoo Han" <jingoohan1@gmail.com>,
linux-pci@vger.kernel.org, "Robin Murphy" <robin.murphy@arm.com>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Pavel Parkhomenko" <Pavel.Parkhomenko@baikalelectronics.ru>,
"Gustavo Pimentel" <gustavo.pimentel@synopsys.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Cai Huoqing" <cai.huoqing@linux.dev>,
linux-kernel@vger.kernel.org, "Vinod Koul" <vkoul@kernel.org>,
caihuoqing <caihuoqing@baidu.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
devicetree@vger.kernel.org, "Frank Li" <Frank.Li@nxp.com>,
"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>
Subject: Re: [PATCH v6 10/20] dt-bindings: PCI: dwc: Add reg/reg-names common properties
Date: Thu, 10 Nov 2022 15:22:18 -0600 [thread overview]
Message-ID: <166811533701.1067589.1394970504851660332.robh@kernel.org> (raw)
In-Reply-To: <20221107204934.32655-11-Sergey.Semin@baikalelectronics.ru>
On Mon, 07 Nov 2022 23:49:24 +0300, Serge Semin wrote:
> Even though there is a more-or-less limited set of the CSR spaces can be
> defined for each DW PCIe controller the generic DT-schema currently
> doesn't specify much limitations on the reg-space names used for one or
> another range. In order to prevent the vendor-specific controller schemas
> further deviation from the generic interface let's fix that by introducing
> the reg-names definition in the common DW PCIe DT-schemas and preserving
> the generic "reg" and "reg-names" properties in there. New DW PCIe device
> DT-bindings are encouraged to use the generic set of the CSR spaces
> defined in the generic DW PCIe RP/EP DT-bindings, while the already
> available vendor-specific DT-bindings can still apple the common
> DT-schemas.
>
> Note the number of reg/reg-names items need to be changed in the DW PCIe
> EP DT-schema since aside with the "dbi" CSRs space these arrays can have
> "dbi2", "addr_space", "atu", etc ranges.
>
> Also note since there are DW PCIe-based vendor-specific DT-bindings with
> the custom names assigned to the same CSR resources we have no much choice
> but to add them to the generic DT-schemas in order to have the schemas
> being applicable for such devices. These names are marked as
> vendor-specific and should be avoided being used in new bindings in favor
> of the generic names.
>
> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
>
> ---
>
> Changelog v3:
> - This is a new patch unpinned from the next one:
> https://lore.kernel.org/linux-pci/20220503214638.1895-2-Sergey.Semin@baikalelectronics.ru/
> by the Rob' request. (@Rob)
> - Split up reg-names in the same way as the interrupt-names: common,
> Root Port and Endpoint specific names. (@Rob)
> - Drop synonymous from the names list since the device schemas create
> their own enumerations anyway.
>
> Changelog v5:
> - Add platform-specific reg names, but mark them as deprecated.
>
> Changelog v6:
> - Move the common reg-names definitions to the RP/EP schemas. Thus drop
> the 'definitions' property. (@Rob)
> - Drop the 'deprecated' keywords from the vendor-specific names. (@Rob)
> ---
> .../bindings/pci/snps,dw-pcie-common.yaml | 22 +++++
> .../bindings/pci/snps,dw-pcie-ep.yaml | 82 +++++++++++++++++--
> .../devicetree/bindings/pci/snps,dw-pcie.yaml | 78 ++++++++++++++++--
> 3 files changed, 169 insertions(+), 13 deletions(-)
>
Reviewed-by: Rob Herring <robh@kernel.org>
next prev parent reply other threads:[~2022-11-10 21:23 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-07 20:49 [PATCH v6 00/20] PCI: dwc: Add generic resources and Baikal-T1 support Serge Semin
2022-11-07 20:49 ` [PATCH v6 01/20] dt-bindings: imx6q-pcie: Fix clock names for imx6sx and imx8mq Serge Semin
2022-11-10 21:01 ` Rob Herring
2022-11-11 11:00 ` Serge Semin
2022-11-07 20:49 ` [PATCH v6 02/20] dt-bindings: visconti-pcie: Fix interrupts array max constraints Serge Semin
2022-11-07 20:49 ` [PATCH v6 03/20] dt-bindings: PCI: dwc: Detach common RP/EP DT bindings Serge Semin
2022-11-07 20:49 ` [PATCH v6 04/20] dt-bindings: PCI: dwc: Remove bus node from the examples Serge Semin
2022-11-07 20:49 ` [PATCH v6 05/20] dt-bindings: PCI: dwc: Add phys/phy-names common properties Serge Semin
2022-11-10 21:01 ` Rob Herring
2022-11-07 20:49 ` [PATCH v6 06/20] dt-bindings: PCI: dwc: Add max-link-speed common property Serge Semin
2022-11-07 20:49 ` [PATCH v6 07/20] dt-bindings: PCI: dwc: Apply generic schema for generic device only Serge Semin
2022-11-07 20:49 ` [PATCH v6 08/20] dt-bindings: PCI: dwc: Add max-functions EP property Serge Semin
2022-11-07 20:49 ` [PATCH v6 09/20] dt-bindings: PCI: dwc: Add interrupts/interrupt-names common properties Serge Semin
2022-11-08 12:40 ` Yoshihiro Shimoda
2022-11-08 13:52 ` Serge Semin
2022-11-08 22:32 ` Rob Herring
2022-11-10 12:26 ` Serge Semin
2022-11-10 21:18 ` Rob Herring
2022-11-07 20:49 ` [PATCH v6 10/20] dt-bindings: PCI: dwc: Add reg/reg-names " Serge Semin
2022-11-10 21:22 ` Rob Herring [this message]
2022-11-07 20:49 ` [PATCH v6 11/20] dt-bindings: PCI: dwc: Add clocks/resets " Serge Semin
2022-11-10 21:23 ` Rob Herring
2022-11-11 11:04 ` Serge Semin
2022-11-07 20:49 ` [PATCH v6 12/20] dt-bindings: PCI: dwc: Add dma-coherent property Serge Semin
2022-11-07 20:49 ` [PATCH v6 13/20] dt-bindings: PCI: dwc: Apply common schema to Rockchip DW PCIe nodes Serge Semin
2022-11-07 20:49 ` [PATCH v6 14/20] dt-bindings: PCI: dwc: Add Baikal-T1 PCIe Root Port bindings Serge Semin
2022-11-07 20:49 ` [PATCH v6 15/20] PCI: dwc: Introduce dma-ranges property support for RC-host Serge Semin
2022-11-07 20:49 ` [PATCH v6 16/20] PCI: dwc: Introduce generic controller capabilities interface Serge Semin
2022-11-07 20:49 ` [PATCH v6 17/20] PCI: dwc: Introduce generic resources getter Serge Semin
2022-11-09 2:17 ` Yoshihiro Shimoda
2022-11-10 13:10 ` Serge Semin
2022-11-07 20:49 ` [PATCH v6 18/20] PCI: dwc: Combine iATU detection procedures Serge Semin
2022-11-07 20:49 ` [PATCH v6 19/20] PCI: dwc: Introduce generic platform clocks and resets Serge Semin
2022-11-07 20:49 ` [PATCH v6 20/20] PCI: dwc: Add Baikal-T1 PCIe controller support Serge Semin
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