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authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 20:08:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 20:08:34 -0800
commit030672aea826adf3dee9100ee8ac303b62c8fe7f (patch)
treec9815fcd276e4c61b864790e81e5cbca16b80142 /Documentation/devicetree/bindings/i2c/i2c-gpio.txt
parentMerge tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio (diff)
parentof: __of_detach_node() - remove node from phandle cache (diff)
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linux-dev-030672aea826adf3dee9100ee8ac303b62c8fe7f.zip
Merge tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring: "The biggest highlight here is the start of using json-schema for DT bindings. Being able to validate bindings has been discussed for years with little progress. - Initial support for DT bindings using json-schema language. This is the start of converting DT bindings from free-form text to a structured format. - Reworking of initrd address initialization. This moves to using the phys address instead of virt addr in the DT parsing code. This rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary rebuilding of lots of files. - Fix stale phandle entries in phandle cache - DT overlay validation improvements. This exposed several memory leak bugs which have been fixed. - Use node name and device_type helper functions in DT code - Last remaining conversions to using %pOFn printk specifier instead of device_node.name directly - Create new common RTC binding doc and move all trivial RTC devices out of trivial-devices.txt. - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra PHY, and Xen shared memory - Update dtc to upstream version v1.4.7-57-gf267e674d145" * tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits) of: __of_detach_node() - remove node from phandle cache of: of_node_get()/of_node_put() nodes held in phandle cache gpio-omap.txt: add reg and interrupts properties dt-bindings: mrvl,intc: fix a trivial typo dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110 dt-bindings: Convert trivial-devices.txt to json-schema dt-bindings: arm: mrvl: amend Browstone compatible string dt-bindings: arm: Convert Tegra board/soc bindings to json-schema dt-bindings: arm: Convert ZTE board/soc bindings to json-schema dt-bindings: arm: Add missing Xilinx boards dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema dt-bindings: arm: Convert VIA board/soc bindings to json-schema dt-bindings: arm: Convert ST STi board/soc bindings to json-schema dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema dt-bindings: arm: Convert QCom board/soc bindings to json-schema dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema dt-bindings: arm: Convert Altera board/soc bindings to json-schema ...
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-gpio.txt')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-gpio.txt46
1 files changed, 0 insertions, 46 deletions
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>;
- };
-};