linux-kernel - [tip: irq/core] dt-bindings: interrupt-controller: Add Aspeed SCU interrupt controller

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Date:   Fri, 24 Jan 2020 19:11:12 -0000
From:   "tip-bot2 for Eddie James" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Eddie James <eajames@...ux.ibm.com>, Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Andrew Jeffery <andrew@...id.au>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: irq/core] dt-bindings: interrupt-controller: Add Aspeed SCU
 interrupt controller

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     5350a237b4525ad12170f16239c9e9c7797df02f
Gitweb:        https://git.kernel.org/tip/5350a237b4525ad12170f16239c9e9c7797df02f
Author:        Eddie James <eajames@...ux.ibm.com>
AuthorDate:    Wed, 15 Jan 2020 15:29:39 -06:00
Committer:     Marc Zyngier <maz@...nel.org>
CommitterDate: Mon, 20 Jan 2020 19:10:03 

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 <eajames@...ux.ibm.com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Andrew Jeffery <andrew@...id.au>
Link: https://lore.kernel.org/r/1579123790-6894-2-git-send-email-eajames@linux.ibm.com
---
 Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt | 23 +++++++++++++++++++++++
 MAINTAINERS                                                                      |  7 +++++++
 include/dt-bindings/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 0000000..251ed44
--- /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@...e2000 {
+        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 e09bd92..f9f6e40 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 <eajames@...ux.ibm.com>
+L:	linux-aspeed@...ts.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@...ux.ibm.com>
 L:	linux-media@...r.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 0000000..f315d5a
--- /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_ */