Hi Jaehoon,
On 01/04/2017 06:04 PM, Jaehoon Chung wrote:
Adds the exynos-pcie-phy binding for Exynos PCIe PHY.
This is for using generic PHY framework.
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
---
Changelog on V2:
- Remove the child node.
- Add 2nd address to the parent reg prop.
Documentation/devicetree/bindings/phy/samsung-phy.txt | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 9872ba8..ab80bfe 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -191,3 +191,20 @@ Example:
usbdrdphy0 = &usb3_phy0;
usbdrdphy1 = &usb3_phy1;
};
+
+Samsung Exynos SoC series PCIe PHY controller
+--------------------------------------------------
+Required properties:
+- compatible : Should be set to "samsung,exynos5440-pcie-phy"
+- #phy-cells : Must be zero
+- reg : a register used by phy driver.
+ - First is for phy register, second is for block register.
+- reg-names : Must be set to "phy" and "block".
+
In general PHY uses a "reference clock" to work, if that is true for
5440 also, will you consider adding an (may be) optional clock
properties as well?
otherwise this binding looks ok to me.
+Example:
+ pcie_phy0: pcie-phy@270000 {
+ #phy-cells = <0>;
+ compatible = "samsung,exynos5440-pcie-phy";
+ reg = <0x270000 0x1000>, <0x271000 0x40>;
+ reg-names = "phy", "block";
+ };
--
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