From 5350a237b4525ad12170f16239c9e9c7797df02f Mon Sep 17 00:00:00 2001 From: Eddie James Date: Wed, 15 Jan 2020 15:29:39 -0600 Subject: [PATCH] dt-bindings: interrupt-controller: Add Aspeed SCU interrupt controller Document the Aspeed SCU interrupt controller and add an include file for the interrupts it provides. Signed-off-by: Eddie James Signed-off-by: Marc Zyngier Reviewed-by: Rob Herring Acked-by: Andrew Jeffery Link: https://lore.kernel.org/r/1579123790-6894-2-git-send-email-eajames@linux.ibm.com --- .../aspeed,ast2xxx-scu-ic.txt | 23 +++++++++++++++++++ MAINTAINERS | 7 ++++++ .../interrupt-controller/aspeed-scu-ic.h | 23 +++++++++++++++++++ 3 files changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt create mode 100644 include/dt-bindings/interrupt-controller/aspeed-scu-ic.h diff --git a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt new file mode 100644 index 000000000000..251ed44171db --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt @@ -0,0 +1,23 @@ +Aspeed AST25XX and AST26XX SCU Interrupt Controller + +Required Properties: + - #interrupt-cells : must be 1 + - compatible : must be "aspeed,ast2500-scu-ic", + "aspeed,ast2600-scu-ic0" or + "aspeed,ast2600-scu-ic1" + - interrupts : interrupt from the parent controller + - interrupt-controller : indicates that the controller receives and + fires new interrupts for child busses + +Example: + + syscon@1e6e2000 { + ranges = <0 0x1e6e2000 0x1a8>; + + scu_ic: interrupt-controller@18 { + #interrupt-cells = <1>; + compatible = "aspeed,ast2500-scu-ic"; + interrupts = <21>; + interrupt-controller; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index e09bd92a1e44..f9f6e4060a92 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2692,6 +2692,13 @@ S: Maintained F: drivers/pinctrl/aspeed/ F: Documentation/devicetree/bindings/pinctrl/aspeed,* +ASPEED SCU INTERRUPT CONTROLLER DRIVER +M: Eddie James +L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) +S: Maintained +F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt +F: include/dt-bindings/interrupt-controller/aspeed-scu-ic.h + ASPEED VIDEO ENGINE DRIVER M: Eddie James L: linux-media@vger.kernel.org diff --git a/include/dt-bindings/interrupt-controller/aspeed-scu-ic.h b/include/dt-bindings/interrupt-controller/aspeed-scu-ic.h new file mode 100644 index 000000000000..f315d5a7f5ee --- /dev/null +++ b/include/dt-bindings/interrupt-controller/aspeed-scu-ic.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_ASPEED_SCU_IC_H_ +#define _DT_BINDINGS_INTERRUPT_CONTROLLER_ASPEED_SCU_IC_H_ + +#define ASPEED_SCU_IC_VGA_CURSOR_CHANGE 0 +#define ASPEED_SCU_IC_VGA_SCRATCH_REG_CHANGE 1 + +#define ASPEED_AST2500_SCU_IC_PCIE_RESET_LO_TO_HI 2 +#define ASPEED_AST2500_SCU_IC_PCIE_RESET_HI_TO_LO 3 +#define ASPEED_AST2500_SCU_IC_LPC_RESET_LO_TO_HI 4 +#define ASPEED_AST2500_SCU_IC_LPC_RESET_HI_TO_LO 5 +#define ASPEED_AST2500_SCU_IC_ISSUE_MSI 6 + +#define ASPEED_AST2600_SCU_IC0_PCIE_PERST_LO_TO_HI 2 +#define ASPEED_AST2600_SCU_IC0_PCIE_PERST_HI_TO_LO 3 +#define ASPEED_AST2600_SCU_IC0_PCIE_RCRST_LO_TO_HI 4 +#define ASPEED_AST2600_SCU_IC0_PCIE_RCRST_HI_TO_LO 5 + +#define ASPEED_AST2600_SCU_IC1_LPC_RESET_LO_TO_HI 0 +#define ASPEED_AST2600_SCU_IC1_LPC_RESET_HI_TO_LO 1 + +#endif /* _DT_BINDINGS_INTERRUPT_CONTROLLER_ASPEED_SCU_IC_H_ */