From: Rob Herring <robh@kernel.org>
To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Sean Hudson <darknighte@darknighte.com>,
Frank Rowand <frowand.list@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linuxppc-dev@lists.ozlabs.org,
Grant Likely <grant.likely@arm.com>,
Kumar Gala <kumar.gala@linaro.org>,
arm@kernel.org
Subject: [PATCH v2 05/34] dt-bindings: i2c: Convert i2c-gpio binding to json-schema
Date: Mon, 3 Dec 2018 15:31:54 -0600 [thread overview]
Message-ID: <20181203213223.16986-6-robh@kernel.org> (raw)
In-Reply-To: <20181203213223.16986-1-robh@kernel.org>
Convert the i2c-gpio binding to DT schema format using json-schema. This
serves as an example of how to include other schema (i2c-controller.yaml
in this case).
Signed-off-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/i2c/i2c-gpio.txt | 46 ------------
.../devicetree/bindings/i2c/i2c-gpio.yaml | 73 +++++++++++++++++++
2 files changed, 73 insertions(+), 46 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-gpio.txt
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-gpio.yaml
diff --git a/Documentation/devicetree/bindings/i2c/i2c-gpio.txt b/Documentation/devicetree/bindings/i2c/i2c-gpio.txt
deleted file mode 100644
index 38a05562d1d2..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-gpio.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-Device-Tree bindings for i2c gpio driver
-
-Required properties:
- - compatible = "i2c-gpio";
- - sda-gpios: gpio used for the sda signal, this should be flagged as
- active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
- from <dt-bindings/gpio/gpio.h> since the signal is by definition
- open drain.
- - scl-gpios: gpio used for the scl signal, this should be flagged as
- active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
- from <dt-bindings/gpio/gpio.h> since the signal is by definition
- open drain.
-
-Optional properties:
- - i2c-gpio,scl-output-only: scl as output only
- - i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform)
- - i2c-gpio,timeout-ms: timeout to get data
-
-Deprecated properties, do not use in new device tree sources:
- - gpios: sda and scl gpio, alternative for {sda,scl}-gpios
- - i2c-gpio,sda-open-drain: this means that something outside of our
- control has put the GPIO line used for SDA into open drain mode, and
- that something is not the GPIO chip. It is essentially an
- inconsistency flag.
- - i2c-gpio,scl-open-drain: this means that something outside of our
- control has put the GPIO line used for SCL into open drain mode, and
- that something is not the GPIO chip. It is essentially an
- inconsistency flag.
-
-Example nodes:
-
-#include <dt-bindings/gpio/gpio.h>
-
-i2c@0 {
- compatible = "i2c-gpio";
- sda-gpios = <&pioA 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
- scl-gpios = <&pioA 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
- i2c-gpio,delay-us = <2>; /* ~100 kHz */
- #address-cells = <1>;
- #size-cells = <0>;
-
- rv3029c2@56 {
- compatible = "rv3029c2";
- reg = <0x56>;
- };
-};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-gpio.yaml b/Documentation/devicetree/bindings/i2c/i2c-gpio.yaml
new file mode 100644
index 000000000000..da6129090a8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-gpio.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for GPIO bitbanged I2C
+
+maintainers:
+ - Wolfram Sang <wolfram@the-dreams.de>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: i2c-gpio
+
+ sda-gpios:
+ description:
+ gpio used for the sda signal, this should be flagged as
+ active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
+ from <dt-bindings/gpio/gpio.h> since the signal is by definition
+ open drain.
+ maxItems: 1
+
+ scl-gpios:
+ description:
+ gpio used for the scl signal, this should be flagged as
+ active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
+ from <dt-bindings/gpio/gpio.h> since the signal is by definition
+ open drain.
+ maxItems: 1
+
+ i2c-gpio,scl-output-only:
+ description: scl as output only
+ type: boolean
+
+ i2c-gpio,delay-us:
+ description: delay between GPIO operations (may depend on each platform)
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ i2c-gpio,timeout-ms:
+ description: timeout to get data
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ # Deprecated properties, do not use in new device tree sources:
+ gpios:
+ minItems: 2
+ maxItems: 2
+ description: sda and scl gpio, alternative for {sda,scl}-gpios
+
+ i2c-gpio,sda-open-drain:
+ # Generate a warning if present
+ not: true
+ description: this means that something outside of our control has put
+ the GPIO line used for SDA into open drain mode, and that something is
+ not the GPIO chip. It is essentially an inconsistency flag.
+
+ i2c-gpio,scl-open-drain:
+ # Generate a warning if present
+ not: true
+ description: this means that something outside of our control has put the
+ GPIO line used for SCL into open drain mode, and that something is not
+ the GPIO chip. It is essentially an inconsistency flag.
+
+required:
+ - compatible
+ - sda-gpios
+ - scl-gpios
+
+...
--
2.19.1
next prev parent reply other threads:[~2018-12-03 21:35 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20181203213223.16986-1-robh@kernel.org>
2018-12-03 21:31 ` [PATCH v2 01/34] kbuild: Add support for DT binding schema checks Rob Herring
2018-12-08 4:47 ` Masahiro Yamada
2018-12-10 15:55 ` Rob Herring
2018-12-03 21:31 ` [PATCH v2 02/34] dt-bindings: Add a writing DT schemas how-to and annotated example Rob Herring
2018-12-03 21:31 ` [PATCH v2 03/34] dt-bindings: Convert trivial-devices.txt to json-schema Rob Herring
2018-12-03 21:31 ` [PATCH v2 04/34] dt-bindings: altera: Convert clkmgr binding " Rob Herring
2018-12-05 15:13 ` Dinh Nguyen
2018-12-03 21:31 ` Rob Herring [this message]
2018-12-03 21:31 ` [PATCH v2 06/34] dt-bindings: timer: Convert ARM timer bindings " Rob Herring
2018-12-03 21:31 ` [PATCH v2 07/34] dt-bindings: arm: Convert cpu binding " Rob Herring
2018-12-03 21:31 ` [PATCH v2 08/34] dt-bindings: arm: Convert PMU " Rob Herring
2018-12-05 10:08 ` Will Deacon
2018-12-05 15:42 ` Rob Herring
2018-12-06 14:37 ` Will Deacon
2018-12-03 21:31 ` [PATCH v2 09/34] dt-bindings: arm: Convert primecell " Rob Herring
2018-12-03 21:31 ` [PATCH v2 10/34] dt-bindings: arm: Convert Actions Semi bindings to jsonschema Rob Herring
2019-01-14 10:26 ` Manivannan Sadhasivam
2018-12-03 21:32 ` [PATCH v2 11/34] dt-bindings: arm: Convert Alpine board/soc bindings to json-schema Rob Herring
2018-12-04 7:53 ` Antoine Tenart
2018-12-03 21:32 ` [PATCH v2 12/34] dt-bindings: arm: Convert Altera " Rob Herring
2018-12-05 15:13 ` Dinh Nguyen
2018-12-03 21:32 ` [PATCH v2 13/34] dt-bindings: arm: amlogic: Move 'amlogic,meson-gx-ao-secure' binding to its own file Rob Herring
2018-12-04 8:31 ` [PATCH v2 13/34] dt-bindings: arm: amlogic: Move 'amlogic, meson-gx-ao-secure' " Neil Armstrong
2018-12-05 1:01 ` [PATCH v2 13/34] dt-bindings: arm: amlogic: Move 'amlogic,meson-gx-ao-secure' " Kevin Hilman
2018-12-05 4:18 ` Rob Herring
2019-01-09 16:12 ` Rob Herring
2018-12-03 21:32 ` [PATCH v2 14/34] dt-bindings: arm: Convert Amlogic board/soc bindings to json-schema Rob Herring
2018-12-04 8:39 ` Neil Armstrong
2018-12-04 14:44 ` Rob Herring
2018-12-06 21:27 ` Rob Herring
2018-12-03 21:32 ` [PATCH v2 15/34] dt-bindings: arm: Convert Atmel " Rob Herring
2018-12-04 8:12 ` Nicolas.Ferre
2018-12-04 22:48 ` Rob Herring
2018-12-03 21:32 ` [PATCH v2 16/34] dt-bindings: arm: Convert Calxeda " Rob Herring
2018-12-03 21:32 ` [PATCH v2 17/34] dt-bindings: arm: Convert TI davinci " Rob Herring
2018-12-06 10:28 ` Sekhar Nori
2018-12-03 21:32 ` [PATCH v2 18/34] dt-bindings: arm: Convert FSL " Rob Herring
2018-12-06 2:31 ` Shawn Guo
2018-12-06 23:33 ` Rob Herring
2018-12-08 1:58 ` Shawn Guo
2019-01-10 6:42 ` Shawn Guo
2019-01-10 10:44 ` Vokáč Michal
2019-01-10 13:44 ` Shawn Guo
2018-12-03 21:32 ` [PATCH v2 19/34] dt-bindings: arm: Convert MediaTek " Rob Herring
2018-12-03 21:32 ` [PATCH v2 20/34] dt-bindings: arm: Convert TI nspire " Rob Herring
2018-12-03 21:32 ` [PATCH v2 21/34] dt-bindings: arm: Convert Oxford Semi " Rob Herring
2018-12-04 8:43 ` Neil Armstrong
2018-12-04 14:04 ` Rob Herring
2018-12-03 21:32 ` [PATCH v2 22/34] dt-bindings: arm: Convert QCom " Rob Herring
2018-12-05 18:31 ` Andy Gross
2018-12-03 21:32 ` [PATCH v2 23/34] dt-bindings: arm: Convert Realtek " Rob Herring
2018-12-03 21:32 ` [PATCH v2 24/34] dt-bindings: arm: Convert Rockchip " Rob Herring
2018-12-04 14:16 ` Heiko Stuebner
2018-12-04 15:04 ` Rob Herring
2018-12-09 22:14 ` [PATCH v2.1 " Heiko Stuebner
2018-12-10 9:54 ` Heiko Stuebner
2018-12-10 15:13 ` Rob Herring
2018-12-10 22:45 ` [PATCH v2.2 " Heiko Stuebner
2018-12-11 15:21 ` Rob Herring
2018-12-03 21:32 ` [PATCH v2 25/34] dt-bindings: arm: renesas: Move 'renesas,prr' binding to its own doc Rob Herring
2018-12-04 14:44 ` Simon Horman
2018-12-04 14:56 ` Geert Uytterhoeven
2018-12-03 21:32 ` [PATCH v2 26/34] dt-bindings: arm: Convert Renesas board/soc bindings to json-schema Rob Herring
2018-12-04 14:48 ` Simon Horman
2018-12-04 14:57 ` Geert Uytterhoeven
2018-12-04 15:08 ` Rob Herring
2018-12-05 19:44 ` Simon Horman
2018-12-06 19:38 ` Rob Herring
2018-12-10 11:12 ` Simon Horman
2018-12-03 21:32 ` [PATCH v2 27/34] dt-bindings: arm: Convert CSR SiRF " Rob Herring
2018-12-03 21:32 ` [PATCH v2 28/34] dt-bindings: arm: Convert SPEAr " Rob Herring
2018-12-04 4:50 ` Viresh Kumar
2018-12-03 21:32 ` [PATCH v2 29/34] dt-bindings: arm: Convert ST STi " Rob Herring
2018-12-04 8:10 ` Patrice CHOTARD
2018-12-03 21:32 ` [PATCH v2 30/34] dt-bindings: arm: Convert Tegra " Rob Herring
2018-12-04 8:50 ` Thierry Reding
2018-12-06 22:38 ` Rob Herring
2018-12-07 11:46 ` Thierry Reding
2018-12-03 21:32 ` [PATCH v2 31/34] dt-bindings: arm: Convert VIA " Rob Herring
2018-12-03 21:32 ` [PATCH v2 32/34] dt-bindings: arm: Convert Xilinx " Rob Herring
2018-12-03 21:32 ` [PATCH v2 33/34] dt-bindings: arm: Add missing Xilinx boards Rob Herring
2018-12-03 21:32 ` [PATCH v2 34/34] dt-bindings: arm: Convert ZTE board/soc bindings to json-schema Rob Herring
2018-12-06 2:33 ` Shawn Guo
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