[PATCH RESEND 1/3] dt-bindings: PCI: amlogic: Fix the register name of the DBI region
Neil Armstrong
neil.armstrong at linaro.org
Mon Nov 3 01:47:36 PST 2025
Hi Mani,
On 11/1/25 05:29, Manivannan Sadhasivam wrote:
> Binding incorrectly specifies the 'DBI' region as 'ELBI'. DBI is a must
> have region for DWC controllers as it has the Root Port and controller
> specific registers, while ELBI has optional registers.
>
> Hence, fix the binding. Though this is an ABI break, this change is needed
> to accurately describe the PCI memory map.
Not fan of this ABI break, the current bindings should be marked as deprecated instead.
>
> Fixes: 7cd210391101 ("dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller")
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam at oss.qualcomm.com>
> ---
> Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml b/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml
> index 79a21ba0f9fd62804ba95fe8a6cc3252cf652197..c8258ef4032834d87cf3160ffd1d93812801b62a 100644
> --- a/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml
> @@ -36,13 +36,13 @@ properties:
>
> reg:
> items:
> - - description: External local bus interface registers
> + - description: Data Bus Interface registers
> - description: Meson designed configuration registers
> - description: PCIe configuration space
>
> reg-names:
> items:
> - - const: elbi
> + - const: dbi
> - const: cfg
> - const: config
>
> @@ -113,7 +113,7 @@ examples:
> pcie: pcie at f9800000 {
> compatible = "amlogic,axg-pcie", "snps,dw-pcie";
> reg = <0xf9800000 0x400000>, <0xff646000 0x2000>, <0xf9f00000 0x100000>;
> - reg-names = "elbi", "cfg", "config";
> + reg-names = "dbi", "cfg", "config";
> interrupts = <GIC_SPI 177 IRQ_TYPE_EDGE_RISING>;
> clocks = <&pclk>, <&clk_port>, <&clk_phy>;
> clock-names = "pclk", "port", "general";
>
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