From: Chris Packham <chris.packham@alliedtelesis.co.nz>
To: linus.walleij@linaro.org, bgolaszewski@baylibre.com,
robh+dt@kernel.org, mark.rutland@arm.com, rjui@broadcom.com,
sbranden@broadcom.com, bcm-kernel-feedback-list@broadcom.com
Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Chris Packham <chris.packham@alliedtelesis.co.nz>
Subject: [PATCH v3 1/2] dt-bindings: gpio: brcm: Add bindings for xgs-iproc
Date: Thu, 24 Oct 2019 13:48:14 +1300 [thread overview]
Message-ID: <20191024004816.5539-2-chris.packham@alliedtelesis.co.nz> (raw)
In-Reply-To: <20191024004816.5539-1-chris.packham@alliedtelesis.co.nz>
This GPIO controller is present on a number of Broadcom switch ASICs
with integrated SoCs. It is similar to the nsp-gpio and iproc-gpio
blocks but different enough to require a separate driver.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
Notes:
Changes in v3:
- incorporate review comments from Rob and Bart
Changes in v2:
- Document as DT schema
- Include ngpios, #gpio-cells and gpio-controller properties
.../bindings/gpio/brcm,xgs-iproc.yaml | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
diff --git a/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
new file mode 100644
index 000000000000..ec1fd3a64aa2
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/brcm,xgs-iproc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom XGS iProc GPIO controller
+
+maintainers:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+description: |
+ This controller is the Chip Common A GPIO present on a number of Broadcom
+ switch ASICs with integrated SoCs.
+
+properties:
+ compatible:
+ const: brcm,iproc-gpio-cca
+
+ reg:
+ items:
+ - description: the I/O address containing the GPIO controller
+ registers.
+ - description: the I/O address containing the Chip Common A interrupt
+ registers.
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ const: 2
+
+ ngpios:
+ minimum: 0
+ maximum: 32
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#gpio-cells"
+ - gpio-controller
+
+dependencies:
+ interrupt-controller: [ interrupts ]
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ gpio@18000060 {
+ compatible = "brcm,iproc-gpio-cca";
+ #gpio-cells = <2>;
+ reg = <0x18000060 0x50>,
+ <0x18000000 0x50>;
+ ngpios = <12>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+
+...
--
2.23.0
next prev parent reply other threads:[~2019-10-24 0:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-24 0:48 [PATCH v3 0/2] gpio: brcm: XGS iProc GPIO driver Chris Packham
2019-10-24 0:48 ` Chris Packham [this message]
2019-10-24 16:39 ` [PATCH v3 1/2] dt-bindings: gpio: brcm: Add bindings for xgs-iproc Scott Branden
2019-10-24 0:48 ` [PATCH v3 2/2] gpio: Add xgs-iproc driver Chris Packham
2019-10-24 16:39 ` Scott Branden
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