[PATCH v3 1/5] dt-bindings: PCI: qcom-ep: Add support for SA8775P SoC

Mrinmay Sarkar
2023-10-19T11:37:39Z

Add devicetree bindings support for SA8775P SoC. It has DMA register
space and dma interrupt to support HDMA.

Signed-off-by: Mrinmay Sarkar <quic_msarkar@quicinc.com>
---
.../devicetree/bindings/pci/qcom,pcie-ep.yaml | 44 +++++++++++++++++++++-
1 file changed, 42 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index a223ce0..7485248 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -13,6 +13,7 @@ properties:
compatible:
oneOf:
- enum:
+ - qcom,sa8775p-pcie-ep
- qcom,sdx55-pcie-ep
- qcom,sm8450-pcie-ep
- items:
@@ -20,6 +21,7 @@ properties:
- const: qcom,sdx55-pcie-ep

reg:
+ minItems: 6
items:
- description: Qualcomm-specific PARF configuration registers
- description: DesignWare PCIe registers
@@ -27,8 +29,10 @@ properties:
- description: Address Translation Unit (ATU) registers
- description: Memory region used to map remote RC address space
- description: BAR memory region
+ - description: DMA register space

reg-names:
+ minItems: 6
items:
- const: parf
- const: dbi
@@ -36,13 +40,14 @@ properties:
- const: atu
- const: addr_space
- const: mmio
+ - const: dma

clocks:
- minItems: 7
+ minItems: 5
maxItems: 8

clock-names:
- minItems: 7
+ minItems: 5
maxItems: 8

qcom,perst-regs:
@@ -57,14 +62,18 @@ properties:
- description: Perst separation enable offset

interrupts:
+ minItems: 2
items:
- description: PCIe Global interrupt
- description: PCIe Doorbell interrupt
+ - description: DMA interrupt

interrupt-names:
+ minItems: 2
items:
- const: global
- const: doorbell
+ - const: dma

reset-gpios:
description: GPIO used as PERST# input signal
@@ -173,6 +182,37 @@ allOf:
- const: ddrss_sf_tbu
- const: aggre_noc_axi

+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sa8775p-pcie-ep
+ then:
+ properties:
+ reg:
+ minItems: 7
+ reg-names:
+ minItems: 7
+ clocks:
+ items:
+ - description: PCIe Auxiliary clock
+ - description: PCIe CFG AHB clock
+ - description: PCIe Master AXI clock
+ - description: PCIe Slave AXI clock
+ - description: PCIe Slave Q2A AXI clock
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg
+ - const: bus_master
+ - const: bus_slave
+ - const: slave_q2a
+ interrupts:
+ minItems: 3
+ interrupt-names:
+ minItems: 3
+
unevaluatedProperties: false

examples:
--
2.7.4