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Message-Id: <20250224074928.2005744-1-kever.yang@rock-chips.com>
Date: Mon, 24 Feb 2025 15:49:27 +0800
From: Kever Yang <kever.yang@...k-chips.com>
To: heiko@...ech.de
Cc: linux-rockchip@...ts.infradead.org,
Kever Yang <kever.yang@...k-chips.com>,
Sebastian Reichel <sebastian.reichel@...labora.com>,
Simon Xue <xxm@...k-chips.com>,
Conor Dooley <conor+dt@...nel.org>,
Rob Herring <robh@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
linux-pci@...r.kernel.org,
Krzysztof Wilczyński <kw@...ux.com>,
linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
devicetree@...r.kernel.org,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Shawn Lin <shawn.lin@...k-chips.com>,
Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v6 1/2] dt-bindings: PCI: dw: rockchip: Add rk3576 support
rk3576 is using DWC PCIe controller, with msi interrupt directly to GIC
instead of using GIC ITS, so
- no ITS support is required and the 'msi-map' is not required,
- a new 'msi' interrupt is needed.
Signed-off-by: Kever Yang <kever.yang@...k-chips.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
Changes in v6:
- Fix make dt_binding_check and make CHECK_DTBS=y
Changes in v5:
- Add constraints per device for interrupt-names due to the interrupt is
different from rk3588.
Changes in v4:
- Fix wrong indentation in dt_binding_check report by Rob
Changes in v3:
- Fix dtb check broken on rk3588
- Update commit message
Changes in v2:
- remove required 'msi-map'
- add interrupt name 'msi'
.../bindings/pci/rockchip-dw-pcie-common.yaml | 41 ++++++++++++++++++-
.../bindings/pci/rockchip-dw-pcie.yaml | 19 ++++++---
2 files changed, 52 insertions(+), 8 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml
index cc9adfc7611c..e1ca8e2f35fe 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml
+++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml
@@ -65,7 +65,11 @@ properties:
tx_cpl_timeout, cor_err_sent, nf_err_sent, f_err_sent, cor_err_rx,
nf_err_rx, f_err_rx, radm_qoverflow
- description:
- eDMA write channel 0 interrupt
+ If the matching interrupt name is "msi", then this is the combinded
+ MSI line interrupt, which is to support MSI interrupts output to GIC
+ controller via GIC SPI interrupt instead of GIC its interrupt.
+ If the matching interrupt name is "dma0", then this is the eDMA write
+ channel 0 interrupt.
- description:
eDMA write channel 1 interrupt
- description:
@@ -81,7 +85,9 @@ properties:
- const: msg
- const: legacy
- const: err
- - const: dma0
+ - enum:
+ - msi
+ - dma0
- const: dma1
- const: dma2
- const: dma3
@@ -123,4 +129,35 @@ required:
additionalProperties: true
+anyOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: rockchip,rk3576-pcie
+ then:
+ properties:
+ interrupt-names:
+ items:
+ - const: sys
+ - const: pmc
+ - const: msg
+ - const: legacy
+ - const: err
+ - const: msi
+ else:
+ properties:
+ interrupt-names:
+ minItems: 5
+ items:
+ - const: sys
+ - const: pmc
+ - const: msg
+ - const: legacy
+ - const: err
+ - const: dma0
+ - const: dma1
+ - const: dma2
+ - const: dma3
+
...
diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
index 550d8a684af3..d727502ed822 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
@@ -16,16 +16,13 @@ description: |+
PCIe IP and thus inherits all the common properties defined in
snps,dw-pcie.yaml.
-allOf:
- - $ref: /schemas/pci/snps,dw-pcie.yaml#
- - $ref: /schemas/pci/rockchip-dw-pcie-common.yaml#
-
properties:
compatible:
oneOf:
- const: rockchip,rk3568-pcie
- items:
- enum:
+ - rockchip,rk3576-pcie
- rockchip,rk3588-pcie
- const: rockchip,rk3568-pcie
@@ -71,8 +68,18 @@ properties:
vpcie3v3-supply: true
-required:
- - msi-map
+allOf:
+ - $ref: /schemas/pci/snps,dw-pcie.yaml#
+ - $ref: /schemas/pci/rockchip-dw-pcie-common.yaml#
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: rockchip,rk3576-pcie
+ then:
+ required:
+ - msi-map
unevaluatedProperties: false
--
2.25.1
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