realtek: backport irq-realtek-rtl driver from 5.12 to 5.10

This patch backports "irq-realtek-rtl" driver to Kernel 5.10 from 5.12.
"MACH_REALTEK_RTL" is used as a platform name in upstream, but "RTL838X"
is used in OpenWrt, so update the dependency by the additional patch.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/target/linux/realtek/patches-5.10/005-5.12-dt-bindings-interrupt-controller-add-realtek-rtl838x-rtl839x-support.patch b/target/linux/realtek/patches-5.10/005-5.12-dt-bindings-interrupt-controller-add-realtek-rtl838x-rtl839x-support.patch
new file mode 100644
index 0000000000..d6817d209d
--- /dev/null
+++ b/target/linux/realtek/patches-5.10/005-5.12-dt-bindings-interrupt-controller-add-realtek-rtl838x-rtl839x-support.patch
@@ -0,0 +1,84 @@
+From 4a2b92a5d3519fc2c1edda4d4aa0e05bff41e8de Mon Sep 17 00:00:00 2001
+From: Bert Vermeulen <bert@biot.com>
+Date: Fri, 22 Jan 2021 21:42:23 +0100
+Subject: dt-bindings: interrupt-controller: Add Realtek RTL838x/RTL839x
+ support
+
+Document the binding for the Realtek RTL838x/RTL839x interrupt controller.
+
+Reviewed-by: Rob Herring <robh@kernel.org>
+Signed-off-by: Bert Vermeulen <bert@biot.com>
+[maz: Add a commit message, as the author couldn't be bothered...]
+Signed-off-by: Marc Zyngier <maz@kernel.org>
+Link: https://lore.kernel.org/r/20210122204224.509124-2-bert@biot.com
+---
+ .../interrupt-controller/realtek,rtl-intc.yaml     | 57 ++++++++++++++++++++++
+ 1 file changed, 57 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/interrupt-controller/realtek,rtl-intc.yaml
+
+diff --git a/Documentation/devicetree/bindings/interrupt-controller/realtek,rtl-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/realtek,rtl-intc.yaml
+new file mode 100644
+index 0000000000000..9e76fff20323c
+--- /dev/null
++++ b/Documentation/devicetree/bindings/interrupt-controller/realtek,rtl-intc.yaml
+@@ -0,0 +1,57 @@
++# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/interrupt-controller/realtek,rtl-intc.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Realtek RTL SoC interrupt controller devicetree bindings
++
++maintainers:
++  - Birger Koblitz <mail@birger-koblitz.de>
++  - Bert Vermeulen <bert@biot.com>
++  - John Crispin <john@phrozen.org>
++
++properties:
++  compatible:
++    const: realtek,rtl-intc
++
++  "#interrupt-cells":
++    const: 1
++
++  reg:
++    maxItems: 1
++
++  interrupts:
++    maxItems: 1
++
++  interrupt-controller: true
++
++  "#address-cells":
++    const: 0
++
++  interrupt-map:
++    description: Describes mapping from SoC interrupts to CPU interrupts
++
++required:
++  - compatible
++  - reg
++  - "#interrupt-cells"
++  - interrupt-controller
++  - "#address-cells"
++  - interrupt-map
++
++additionalProperties: false
++
++examples:
++  - |
++    intc: interrupt-controller@3000 {
++      compatible = "realtek,rtl-intc";
++      #interrupt-cells = <1>;
++      interrupt-controller;
++      reg = <0x3000 0x20>;
++      #address-cells = <0>;
++      interrupt-map =
++              <31 &cpuintc 2>,
++              <30 &cpuintc 1>,
++              <29 &cpuintc 5>;
++    };
+-- 
+cgit 1.2.3-1.el7
+