From patchwork Wed Dec 1 20:51:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 519449 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7143CC43219 for ; Wed, 1 Dec 2021 20:52:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353076AbhLAU4D (ORCPT ); Wed, 1 Dec 2021 15:56:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353197AbhLAUzM (ORCPT ); Wed, 1 Dec 2021 15:55:12 -0500 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D5BDC061574; Wed, 1 Dec 2021 12:51:51 -0800 (PST) Received: by mail-pf1-x436.google.com with SMTP id g19so25790505pfb.8; Wed, 01 Dec 2021 12:51:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MyqPfy+ha7iGIoQvE1EgZWcwITDPm37FB0rLdMo+0Ks=; b=ahgMQi9NYSNiOMyIDOAM6LIuztlz9rrwQqWzWcsdhBtI8f/vR9SsvblGWW9jNbhiuz nNh+mGDLb4wXunnnrJVzBdgJ8rEMjDBbdt1EArr7LL+vC1n/D7Z/xpS44C3yoHPerP0h U5qhXQFdVjR2RcJOitSOzu9usXf4lOIBg4t/ZODQy6w7HuRyqjeIBCr0FcTQieB7OW9U rv1z/rnWLCjJhq+cH1fyNPnApIx2+JMxg2v7gzDzDGKLoXqYoGw1ygKznEW+QLFL6PEK 8BwyJIXWc9UuPkr59NBN9P7oub36O8xYBUiTM+092br/myTG7S+Kf5SQwtaUgcPnYLhC wyrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MyqPfy+ha7iGIoQvE1EgZWcwITDPm37FB0rLdMo+0Ks=; b=FTIlHI2r46dq8G/U49HSoEuI3KbryxbkKGxO4fqYrTDaGl5iFv/mdKxdV3X9YZsyVl C7Dl+gYciAXwecdED+UUgdZ0vtV/vzq5eksUhSNmHIipclSxrs4BafEGQLInLhLya91h KhEVHjMwjvpfCHkI6wQ+LsGUNgggOqpmVuAvQFU/U6uewVzvg6yT8XLYxzKTjRd80/Mg x4BcZIqd+W8DI0VsfcGnXcEQ6BtsN6oHVPwaIa0l0MjbXtDcQJaMT+9MRuOcdcgLE3+D 3jTpNrwbqDN7X/XDn6ZyCnhOwH1/WAVejqMuH22+eTbg+3zF5qPDoy3hgr3+B3YImtDI /6AQ== X-Gm-Message-State: AOAM532agRT31VRTtw7y1RiM+lDKVErvwvqqT+TOJtCF+u9UgAZ7RI8m U+jJ9ckUwlrnl0yML37LSF1Pp9KvFAM= X-Google-Smtp-Source: ABdhPJyQBLDrAU6fZBRUfkRwFJYFHbLSgrB7zO4DZiT6BGmVfKzKjvYw4t4k/65pmx1Yj1+fOHrR0w== X-Received: by 2002:a05:6a00:cc8:b0:49f:c4a9:b9f1 with SMTP id b8-20020a056a000cc800b0049fc4a9b9f1mr8409092pfv.32.1638391910140; Wed, 01 Dec 2021 12:51:50 -0800 (PST) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id p20sm729117pfw.96.2021.12.01.12.51.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Dec 2021 12:51:49 -0800 (PST) From: Florian Fainelli To: devicetree@vger.kernel.org Cc: Florian Fainelli , Damien Le Moal , Rob Herring , Linus Walleij , Bartosz Golaszewski , bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM BCM7XXX ARM ARCHITECTURE), Gregory Fong , Thomas Gleixner , Marc Zyngier , Ulf Hansson , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Lee Jones , Philipp Zabel , Matt Mackall , Herbert Xu , Ray Jui , Scott Branden , Alessandro Zummo , Alexandre Belloni , "Rafael J. Wysocki" , Daniel Lezcano , Amit Kucheria , Zhang Rui , Markus Mayer , Greg Kroah-Hartman , Al Cooper , Doug Berger , linux-ide@vger.kernel.org (open list:LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)), linux-kernel@vger.kernel.org (open list), linux-gpio@vger.kernel.org (open list:GPIO SUBSYSTEM), linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE), linux-mmc@vger.kernel.org (open list:MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND...), linux-pwm@vger.kernel.org (open list:PWM SUBSYSTEM), linux-crypto@vger.kernel.org (open list:HARDWARE RANDOM NUMBER GENERATOR CORE), linux-rtc@vger.kernel.org (open list:REAL TIME CLOCK (RTC) SUBSYSTEM), linux-pm@vger.kernel.org (open list:THERMAL), linux-usb@vger.kernel.org (open list:USB SUBSYSTEM) Subject: [PATCH 06/14] dt-binding: interrupt-controller: Convert BCM7038 L1 intc to YAML Date: Wed, 1 Dec 2021 12:51:02 -0800 Message-Id: <20211201205110.41656-7-f.fainelli@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211201205110.41656-1-f.fainelli@gmail.com> References: <20211201205110.41656-1-f.fainelli@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Convert the Broadcom STB BCM7038 Level 1 interrupt controller Device Tree binding to YAML to help with validation. Signed-off-by: Florian Fainelli --- .../brcm,bcm7038-l1-intc.txt | 61 ------------- .../brcm,bcm7038-l1-intc.yaml | 91 +++++++++++++++++++ 2 files changed, 91 insertions(+), 61 deletions(-) delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt deleted file mode 100644 index 5ddef1dc0c1a..000000000000 --- a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt +++ /dev/null @@ -1,61 +0,0 @@ -Broadcom BCM7038-style Level 1 interrupt controller - -This block is a first level interrupt controller that is typically connected -directly to one of the HW INT lines on each CPU. Every BCM7xxx set-top chip -since BCM7038 has contained this hardware. - -Key elements of the hardware design include: - -- 64, 96, 128, or 160 incoming level IRQ lines - -- Most onchip peripherals are wired directly to an L1 input - -- A separate instance of the register set for each CPU, allowing individual - peripheral IRQs to be routed to any CPU - -- Atomic mask/unmask operations - -- No polarity/level/edge settings - -- No FIFO or priority encoder logic; software is expected to read all - 2-5 status words to determine which IRQs are pending - -Required properties: - -- compatible: should be "brcm,bcm7038-l1-intc" -- reg: specifies the base physical address and size of the registers; - the number of supported IRQs is inferred from the size argument -- interrupt-controller: identifies the node as an interrupt controller -- #interrupt-cells: specifies the number of cells needed to encode an interrupt - source, should be 1. -- interrupts: specifies the interrupt line(s) in the interrupt-parent controller - node; valid values depend on the type of parent interrupt controller - -Optional properties: - -- brcm,irq-can-wake: If present, this means the L1 controller can be used as a - wakeup source for system suspend/resume. - -Optional properties: - -- brcm,int-fwd-mask: if present, a bit mask to indicate which interrupts - have already been configured by the firmware and should be left unmanaged. - This should have one 32-bit word per status/set/clear/mask group. - -If multiple reg ranges and interrupt-parent entries are present on an SMP -system, the driver will allow IRQ SMP affinity to be set up through the -/proc/irq/ interface. In the simplest possible configuration, only one -reg range and one interrupt-parent is needed. - -Example: - -periph_intc: periph_intc@1041a400 { - compatible = "brcm,bcm7038-l1-intc"; - reg = <0x1041a400 0x30 0x1041a600 0x30>; - - interrupt-controller; - #interrupt-cells = <1>; - - interrupt-parent = <&cpu_intc>; - interrupts = <2>, <3>; -}; diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.yaml new file mode 100644 index 000000000000..5ecb6faa70dc --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/brcm,bcm7038-l1-intc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM7038-style Level 1 interrupt controller + +description: > + This block is a first level interrupt controller that is typically connected + directly to one of the HW INT lines on each CPU. Every BCM7xxx set-top chip + since BCM7038 has contained this hardware. + + Key elements of the hardware design include: + + - 64, 96, 128, or 160 incoming level IRQ lines + + - Most onchip peripherals are wired directly to an L1 input + + - A separate instance of the register set for each CPU, allowing individual + peripheral IRQs to be routed to any CPU + + - Atomic mask/unmask operations + + - No polarity/level/edge settings + + - No FIFO or priority encoder logic; software is expected to read all + 2-5 status words to determine which IRQs are pending + + If multiple reg ranges and interrupt-parent entries are present on an SMP + system, the driver will allow IRQ SMP affinity to be set up through the + /proc/irq/ interface. In the simplest possible configuration, only one + reg range and one interrupt-parent is needed. + +maintainers: + - Florian Fainelli + +allOf: + - $ref: /schemas/interrupt-controller.yaml# + +properties: + compatible: + const: brcm,bcm7038-l1-intc + + reg: + description: > + Specifies the base physical address and size of the registers + the number of supported IRQs is inferred from the size argument + + interrupt-controller: true + + "#interrupt-cells": + const: 1 + + interrupts: + description: > + Specifies the interrupt line(s) in the interrupt-parent controller node; + valid values depend on the type of parent interrupt controller + + brcm,irq-can-wake: + type: boolean + description: > + If present, this means the L1 controller can be used as a + wakeup source for system suspend/resume. + + brcm,int-fwd-mask: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + If present, a bit mask to indicate which interrupts have already been + configured by the firmware and should be left unmanaged. This should + have one 32-bit word per status/set/clear/mask group. + +required: + - compatible + - reg + - interrupt-controller + - "#interrupt-cells" + - interrupts + +additionalProperties: false + +examples: + - | + periph_intc: interrupt-controller@1041a400 { + compatible = "brcm,bcm7038-l1-intc"; + reg = <0x1041a400 0x30>, <0x1041a600 0x30>; + interrupt-controller; + #interrupt-cells = <1>; + interrupt-parent = <&cpu_intc>; + interrupts = <2>, <3>; + };