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dt-bindings: interrupt-controller: Add Aspeed SCU interrupt controller

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Document the Aspeed SCU interrupt controller and add an include file
for the interrupts it provides.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/1579123790-6894-2-git-send-email-eajames@linux.ibm.com
This commit is contained in:
Eddie James 2020-01-15 15:29:39 -06:00 committed by Marc Zyngier
parent 96868dce64
commit 5350a237b4
3 changed files with 53 additions and 0 deletions
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23
Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt Normal file
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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;
};
};

7
MAINTAINERS
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@ -2692,6 +2692,13 @@ S: Maintained
F: drivers/pinctrl/aspeed/
F: Documentation/devicetree/bindings/pinctrl/aspeed,*
ASPEED SCU INTERRUPT CONTROLLER DRIVER
M: Eddie James <eajames@linux.ibm.com>
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 <eajames@linux.ibm.com>
L: linux-media@vger.kernel.org

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include/dt-bindings/interrupt-controller/aspeed-scu-ic.h Normal file
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/* 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_ */