dt-bindings: PCI: qcom: Add support for IPQ8074

Add support for the IPQ8074 PCIe controller.  IPQ8074 supports Gen 1/2, one
lane, two PCIe root complex with support for MSI and legacy interrupts, and
it conforms to PCI Express Base 2.1 specification.

Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
index 9d418b7..b3e36ef 100644 (file)
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
@@ -9,6 +9,7 @@
                        - "qcom,pcie-apq8084" for apq8084
                        - "qcom,pcie-msm8996" for msm8996 or apq8096
                        - "qcom,pcie-ipq4019" for ipq4019
+                       - "qcom,pcie-ipq8074" for ipq8074
 
 - reg:
        Usage: required
@@ -105,6 +106,16 @@
                        - "bus_master"  Master AXI clock
                        - "bus_slave"   Slave AXI clock
 
+- clock-names:
+       Usage: required for ipq8074
+       Value type: <stringlist>
+       Definition: Should contain the following entries
+                       - "iface"       PCIe to SysNOC BIU clock
+                       - "axi_m"       AXI Master clock
+                       - "axi_s"       AXI Slave clock
+                       - "ahb"         AHB clock
+                       - "aux"         Auxiliary clock
+
 - resets:
        Usage: required
        Value type: <prop-encoded-array>
@@ -144,6 +155,18 @@
                        - "ahb"                 AHB reset
                        - "phy_ahb"             PHY AHB reset
 
+- reset-names:
+       Usage: required for ipq8074
+       Value type: <stringlist>
+       Definition: Should contain the following entries
+                       - "pipe"                PIPE reset
+                       - "sleep"               Sleep reset
+                       - "sticky"              Core Sticky reset
+                       - "axi_m"               AXI Master reset
+                       - "axi_s"               AXI Slave reset
+                       - "ahb"                 AHB Reset
+                       - "axi_m_sticky"        AXI Master Sticky reset
+
 - power-domains:
        Usage: required for apq8084 and msm8996/apq8096
        Value type: <prop-encoded-array>