RE: [PATCH 01/16] dt-bindings: PCI: Rename Exynos PCIe binding to Samsung PCIe

["Shradha Todi" <shradha.t@samsung.com>]

> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@linaro.org]
> Sent: 16 February 2023 16:24
> To: Shradha Todi <shradha.t@samsung.com>; lpieralisi@kernel.org;
> kw@linux.com; robh@kernel.org; bhelgaas@google.com;
> krzysztof.kozlowski+dt@linaro.org; alim.akhtar@samsung.com;
> jingoohan1@gmail.com; Sergey.Semin@baikalelectronics.ru;
> lukas.bulwahn@gmail.com; hongxing.zhu@nxp.com; tglx@linutronix.de;
> m.szyprowski@samsung.com; jh80.chung@samsung.co;
> pankaj.dubey@samsung.com
> Cc: linux-pci@vger.kernel.org; devicetree@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: Re: [PATCH 01/16] dt-bindings: PCI: Rename Exynos PCIe binding to
> Samsung PCIe
> 
> On 14/02/2023 13:13, Shradha Todi wrote:
> > The current DT bindings is being used for Exynos5433 SoC only.
> > In order to extend this binding for all SoCs manufactured by Samsung
> > using DWC PCIe controller, renaming this file to a more generic name.
> 
> Thank you for your patch. There is something to discuss/improve.
> 
> >
> > Signed-off-by: Shradha Todi <shradha.t@samsung.com>
> > ---
> >  .../pci/{samsung,exynos-pcie.yaml => samsung,pcie.yaml}     | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)  rename
> > Documentation/devicetree/bindings/pci/{samsung,exynos-pcie.yaml =>
> > samsung,pcie.yaml} (93%)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
> > b/Documentation/devicetree/bindings/pci/samsung,pcie.yaml
> > similarity index 93%
> > rename from
> > Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
> > rename to Documentation/devicetree/bindings/pci/samsung,pcie.yaml
> > index f20ed7e709f7..6cd36d9ccba0 100644
> > --- a/Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
> > +++ b/Documentation/devicetree/bindings/pci/samsung,pcie.yaml
> 
> We keep the name rather tied to compatible, not generic. There are no other
> compatibles here, so I don't think we should rename it.
> 

Our intention to rename was to have a common name for Samsung manufactured SoCs having PCIe controller.
Though this change may not be a blocker for us but we feel it will be good to have a common name as this file will
not have bindings only for Exynos series of SoC (Samsung Sys. LSI designed) but also custom ASICs such as FSD / ARTPEC SoC (Samsung Foundry designed). 
We hope we are not breaking any ABI as such in this patch.

Shradha

> Best regards,
> Krzysztof