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From: Hector Martin <marcan@marcan.st>
To: linux-arm-kernel@lists.infradead.org
Cc: Hector Martin <marcan@marcan.st>, Marc Zyngier <maz@kernel.org>,
	Rob Herring <robh@kernel.org>, Arnd Bergmann <arnd@kernel.org>,
	Olof Johansson <olof@lixom.net>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Mark Kettenis <mark.kettenis@xs4all.nl>,
	Tony Lindgren <tony@atomide.com>,
	Mohamed Mediouni <mohamed.mediouni@caramail.com>,
	Stan Skowronek <stan@corellium.com>,
	Alexander Graf <graf@amazon.com>, Will Deacon <will@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Christoph Hellwig <hch@infradead.org>,
	"David S. Miller" <davem@davemloft.net>,
	devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 05/18] dt-bindings: timer: arm,arch_timer: Add interrupt-names support
Date: Fri,  2 Apr 2021 18:05:29 +0900	[thread overview]
Message-ID: <20210402090542.131194-6-marcan@marcan.st> (raw)
In-Reply-To: <20210402090542.131194-1-marcan@marcan.st>

Not all platforms provide the same set of timers/interrupts, and Linux
only needs one (plus kvm/guest ones); some platforms are working around
this by using dummy fake interrupts. Implementing interrupt-names allows
the devicetree to specify an arbitrary set of available interrupts, so
the timer code can pick the right one.

This also adds the hyp-virt timer/interrupt, which was previously not
expressed in the fixed 4-interrupt form.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
---
 .../bindings/timer/arm,arch_timer.yaml        | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
index 2c75105c1398..7f5e3af58255 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
@@ -34,11 +34,30 @@ properties:
               - arm,armv8-timer
 
   interrupts:
+    minItems: 1
+    maxItems: 5
     items:
       - description: secure timer irq
       - description: non-secure timer irq
       - description: virtual timer irq
       - description: hypervisor timer irq
+      - description: hypervisor virtual timer irq
+
+  interrupt-names:
+    oneOf:
+      - minItems: 2
+        items:
+          - const: phys
+          - const: virt
+          - const: hyp-phys
+          - const: hyp-virt
+      - minItems: 3
+        items:
+          - const: sec-phys
+          - const: phys
+          - const: virt
+          - const: hyp-phys
+          - const: hyp-virt
 
   clock-frequency:
     description: The frequency of the main counter, in Hz. Should be present
-- 
2.30.0


WARNING: multiple messages have this Message-ID (diff)
From: Hector Martin <marcan@marcan.st>
To: linux-arm-kernel@lists.infradead.org
Cc: Hector Martin <marcan@marcan.st>, Marc Zyngier <maz@kernel.org>,
	Rob Herring <robh@kernel.org>, Arnd Bergmann <arnd@kernel.org>,
	Olof Johansson <olof@lixom.net>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Mark Kettenis <mark.kettenis@xs4all.nl>,
	Tony Lindgren <tony@atomide.com>,
	Mohamed Mediouni <mohamed.mediouni@caramail.com>,
	Stan Skowronek <stan@corellium.com>,
	Alexander Graf <graf@amazon.com>, Will Deacon <will@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Christoph Hellwig <hch@infradead.org>,
	"David S. Miller" <davem@davemloft.net>,
	devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 05/18] dt-bindings: timer: arm, arch_timer: Add interrupt-names support
Date: Fri,  2 Apr 2021 18:05:29 +0900	[thread overview]
Message-ID: <20210402090542.131194-6-marcan@marcan.st> (raw)
In-Reply-To: <20210402090542.131194-1-marcan@marcan.st>

Not all platforms provide the same set of timers/interrupts, and Linux
only needs one (plus kvm/guest ones); some platforms are working around
this by using dummy fake interrupts. Implementing interrupt-names allows
the devicetree to specify an arbitrary set of available interrupts, so
the timer code can pick the right one.

This also adds the hyp-virt timer/interrupt, which was previously not
expressed in the fixed 4-interrupt form.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
---
 .../bindings/timer/arm,arch_timer.yaml        | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
index 2c75105c1398..7f5e3af58255 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
@@ -34,11 +34,30 @@ properties:
               - arm,armv8-timer
 
   interrupts:
+    minItems: 1
+    maxItems: 5
     items:
       - description: secure timer irq
       - description: non-secure timer irq
       - description: virtual timer irq
       - description: hypervisor timer irq
+      - description: hypervisor virtual timer irq
+
+  interrupt-names:
+    oneOf:
+      - minItems: 2
+        items:
+          - const: phys
+          - const: virt
+          - const: hyp-phys
+          - const: hyp-virt
+      - minItems: 3
+        items:
+          - const: sec-phys
+          - const: phys
+          - const: virt
+          - const: hyp-phys
+          - const: hyp-virt
 
   clock-frequency:
     description: The frequency of the main counter, in Hz. Should be present
-- 
2.30.0


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  parent reply	other threads:[~2021-04-02  9:06 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-02  9:05 [PATCH v4 00/18] Apple M1 SoC platform bring-up Hector Martin
2021-04-02  9:05 ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 01/18] dt-bindings: vendor-prefixes: Add apple prefix Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 02/18] dt-bindings: arm: apple: Add bindings for Apple ARM platforms Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 03/18] dt-bindings: arm: cpus: Add apple,firestorm & icestorm compatibles Hector Martin
2021-04-02  9:05   ` [PATCH v4 03/18] dt-bindings: arm: cpus: Add apple, firestorm " Hector Martin
2021-04-02  9:05 ` [PATCH v4 04/18] arm64: cputype: Add CPU implementor & types for the Apple M1 cores Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` Hector Martin [this message]
2021-04-02  9:05   ` [PATCH v4 05/18] dt-bindings: timer: arm, arch_timer: Add interrupt-names support Hector Martin
2021-04-06 16:44   ` [PATCH v4 05/18] dt-bindings: timer: arm,arch_timer: " Rob Herring
2021-04-06 16:44     ` Rob Herring
2021-04-02  9:05 ` [PATCH v4 06/18] arm64: arch_timer: Implement support for interrupt-names Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 07/18] asm-generic/io.h: Add a non-posted variant of ioremap() Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 08/18] docs: driver-api: device-io: Document I/O access functions Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 09/18] docs: driver-api: device-io: Document ioremap() variants & access funcs Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 10/18] arm64: Implement ioremap_np() to map MMIO as nGnRnE Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 11/18] asm-generic/io.h: implement pci_remap_cfgspace using ioremap_np Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-07 13:27   ` Andy Shevchenko
2021-04-07 13:27     ` Andy Shevchenko
2021-04-07 21:03     ` Will Deacon
2021-04-07 21:03       ` Will Deacon
2021-04-08 11:01       ` Hector Martin
2021-04-08 11:01         ` Hector Martin
2021-04-08 11:24         ` Andy Shevchenko
2021-04-08 11:24           ` Andy Shevchenko
2021-04-02  9:05 ` [PATCH v4 12/18] of/address: Add infrastructure to declare MMIO as non-posted Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-06 16:47   ` Rob Herring
2021-04-06 16:47     ` Rob Herring
2021-04-06 16:59     ` Hector Martin
2021-04-06 16:59       ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 13/18] arm64: Move ICH_ sysreg bits from arm-gic-v3.h to sysreg.h Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 14/18] dt-bindings: interrupt-controller: Add DT bindings for apple-aic Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 15/18] irqchip/apple-aic: Add support for the Apple Interrupt Controller Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-06 18:16   ` Marc Zyngier
2021-04-06 18:16     ` Marc Zyngier
2021-04-06 19:21     ` Hector Martin
2021-04-06 19:21       ` Hector Martin
2021-04-07 21:09   ` Will Deacon
2021-04-07 21:09     ` Will Deacon
2021-04-08 11:02     ` Hector Martin
2021-04-08 11:02       ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 16/18] arm64: Kconfig: Introduce CONFIG_ARCH_APPLE Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 17/18] dt-bindings: display: Add apple,simple-framebuffer Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02  9:05 ` [PATCH v4 18/18] arm64: apple: Add initial Apple Mac mini (M1, 2020) devicetree Hector Martin
2021-04-02  9:05   ` Hector Martin
2021-04-02 22:48   ` Konrad Dybcio
2021-04-06 16:56   ` Rob Herring
2021-04-06 16:56     ` Rob Herring

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