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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-08 09:27:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-08 09:27:33 -0800
commit6c3f98faddc7f07981c5365ba2f45905ad75fcaa (patch)
treea999723d659850bd26dd95f05c5c9b12289ca91c /Documentation/devicetree/bindings
parentMerge tag 'for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply (diff)
parenti2c: Allow recovery of the initial IRQ by an I2C client device. (diff)
downloadlinux-dev-6c3f98faddc7f07981c5365ba2f45905ad75fcaa.tar.xz
linux-dev-6c3f98faddc7f07981c5365ba2f45905ad75fcaa.zip
Merge branch 'i2c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: - the I2C core gained helpers to assist drivers in handling their suspended state, and drivers were converted to use it - two new fault-injectors for stress-testing - bigger refactoring and feature improvements for the ocores, sh_mobile, and tegra drivers - platform_data removal for the at24 EEPROM driver - ... and various improvements and bugfixes all over the subsystem * 'i2c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (69 commits) i2c: Allow recovery of the initial IRQ by an I2C client device. i2c: ocores: turn incomplete kdoc into a comment i2c: designware: Do not allow i2c_dw_xfer() calls while suspended i2c: tegra: Only display error messages if DMA setup fails i2c: gpio: fault-injector: add 'inject_panic' injector i2c: gpio: fault-injector: add 'lose_arbitration' injector i2c: tegra: remove multi-master support i2c: tegra: remove master fifo support on tegra186 i2c: tegra: change phrasing, "fallbacking" to "falling back" i2c: expand minor range when registering chrdev region i2c: aspeed: Add multi-master use case support i2c: core-smbus: don't trace smbus_reply data on errors i2c: ocores: Add support for bus clock via platform data i2c: ocores: Add support for IO mapper registers. i2c: ocores: checkpatch fixes i2c: ocores: add SPDX tag i2c: ocores: add polling interface i2c: ocores: do not handle IRQ if IF is not set i2c: ocores: stop transfer on timeout i2c: tegra: add i2c interface timing support ...
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r--Documentation/devicetree/bindings/eeprom/at24.txt3
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-mtk.txt1
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-xscale.txt20
3 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
index f9a7c984274c..0e456bbc1213 100644
--- a/Documentation/devicetree/bindings/eeprom/at24.txt
+++ b/Documentation/devicetree/bindings/eeprom/at24.txt
@@ -75,6 +75,8 @@ Optional properties:
- address-width: number of address bits (one of 8, 16).
+ - num-addresses: total number of i2c slave addresses this device takes
+
Example:
eeprom@52 {
@@ -82,4 +84,5 @@ eeprom@52 {
reg = <0x52>;
pagesize = <32>;
wp-gpios = <&gpio1 3 0>;
+ num-addresses = <8>;
};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
index e199695b1c96..ee4c32454198 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
@@ -10,6 +10,7 @@ Required properties:
"mediatek,mt6589-i2c": for MediaTek MT6589
"mediatek,mt7622-i2c": for MediaTek MT7622
"mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623
+ "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629
"mediatek,mt8173-i2c": for MediaTek MT8173
- reg: physical base address of the controller and dma base, length of memory
mapped region.
diff --git a/Documentation/devicetree/bindings/i2c/i2c-xscale.txt b/Documentation/devicetree/bindings/i2c/i2c-xscale.txt
new file mode 100644
index 000000000000..dcc8390e0d24
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-xscale.txt
@@ -0,0 +1,20 @@
+i2c Controller on XScale platforms such as IOP3xx and IXP4xx
+
+Required properties:
+- compatible : Must be one of
+ "intel,iop3xx-i2c"
+ "intel,ixp4xx-i2c";
+- reg
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+Optional properties:
+- Child nodes conforming to i2c bus binding
+
+Example:
+
+i2c@c8011000 {
+ compatible = "intel,ixp4xx-i2c";
+ reg = <0xc8011000 0x18>;
+ interrupts = <33 IRQ_TYPE_LEVEL_LOW>;
+};