Hi Jaehoon,
On Wednesday 04 January 2017 06:04 PM, Jaehoon Chung wrote:
> According to using PHY framework, updates the exynos5440-pcie binding.
> For maintaining backward compatibility, leaves the current dt-binding.
> (It should be deprecated.)
>
> Recommends to use the Phy Framework and "config" property to follow
> the designware-pcie binding.
> If you use the old way, can see "mssing *config* reg space" message.
> Because the getting configuration space address from range is old way.
>
> NOTE: When use the "config" property, first name of 'reg-names' must be
> set to "elbi". Otherwise driver can't maintain the backward capability.
>
> Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
> ---
> Changelog on V2:
> - Describes more commit message
> - Fixes the typos
> - Adds the new example for using PHY framework
> - Deprecated the old dt-binding description
> - Removes 'phy-names'
>
> .../bindings/pci/samsung,exynos5440-pcie.txt | 29 ++++++++++++++++++++++
> 1 file changed, 29 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt b/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
> index 4f9d23d..1d0af0e 100644
> --- a/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
> +++ b/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
> @@ -7,8 +7,19 @@ Required properties:
> - compatible: "samsung,exynos5440-pcie"
> - reg: base addresses and lengths of the pcie controller,
> the phy controller, additional register for the phy controller.
> + (Registers for the phy controller are DEPRECATED.
> + Use the PHY framework.)
> +- reg-names : First name should be set to "elbi".
> + And use the "config" instead of getting the confgiruation address space
> + from "ranges".
> + NOTE: When use the "config" property, reg-names must be set.
> - interrupts: A list of interrupt outputs for level interrupt,
> pulse interrupt, special interrupt.
> +- phys: From PHY binding. Phandle for the Generic PHY.
> + Refer to Documentation/devicetree/bindings/phy/samsung-phy.txt
> +
> +Other common properties refer to
> + Documentation/devicetree/binding/pci/designware-pcie.txt
>
> Example:
>
> @@ -54,6 +65,24 @@ SoC specific DT Entry:
> num-lanes = <4>;
> };
>
> +With using PHY framework:
> + pcie_phy0: pcie-phy@270000 {
> + ...
> + reg = <0x270000 0x1000>, <0x271000 0x40>;
> + regn-names = "phy", "block";
typo: %s/regn-names/reg-names/
> + ...
> + };
> +
> + pcie@290000 {
> + ...
> + reg = <0x290000 0x1000>, <0x40000000 0x1000>;
> + reg-names = "elbi", "config";
> + phys = <&pcie_phy0>;
> + ranges = <0x81000000 0 0 0x60001000 0 0x00010000
> + 0x82000000 0 0x60011000 0x60011000 0 0x1ffef000>;
> + ...
> + };
> +
> Board specific DT Entry:
>
> pcie@290000 {
>
Other than above one typo rest is looking fine.
Once you address it, feel free to add
Reviewed-by: Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx>
Thanks,
Pankaj Dubey
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