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author | Stephen Rothwell <sfr@canb.auug.org.au> | 2018-01-11 10:21:32 +1100 |
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committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2018-01-11 10:21:32 +1100 |
commit | 50c343f397d0c91dd6ed66201ce14ad39f89066a (patch) | |
tree | 351743a10e184c49a9772b935f1b9cb30ea03a05 /Documentation/devicetree | |
parent | 8b20e7432c0b0ae6e618d10973ee64b60878b311 (diff) | |
parent | 9afdda4aa197a1ee71b3a796230e8ae832db072e (diff) |
Merge remote-tracking branch 'i2c/i2c/for-next'
Diffstat (limited to 'Documentation/devicetree')
4 files changed, 90 insertions, 49 deletions
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt new file mode 100644 index 000000000000..1812c848e369 --- /dev/null +++ b/Documentation/devicetree/bindings/eeprom/at24.txt @@ -0,0 +1,78 @@ +EEPROMs (I2C) + +Required properties: + + - compatible: Must be a "<manufacturer>,<model>" pair. The following <model> + values are supported (assuming "atmel" as manufacturer): + + "atmel,24c00", + "atmel,24c01", + "atmel,24cs01", + "atmel,24c02", + "atmel,24cs02", + "atmel,24mac402", + "atmel,24mac602", + "atmel,spd", + "atmel,24c04", + "atmel,24cs04", + "atmel,24c08", + "atmel,24cs08", + "atmel,24c16", + "atmel,24cs16", + "atmel,24c32", + "atmel,24cs32", + "atmel,24c64", + "atmel,24cs64", + "atmel,24c128", + "atmel,24c256", + "atmel,24c512", + "atmel,24c1024", + + If <manufacturer> is not "atmel", then a fallback must be used + with the same <model> and "atmel" as manufacturer. + + Example: + compatible = "microchip,24c128", "atmel,24c128"; + + Supported manufacturers are: + + "catalyst", + "microchip", + "ramtron", + "renesas", + "nxp", + "st", + + Some vendors use different model names for chips which are just + variants of the above. Known such exceptions are listed below: + + "renesas,r1ex24002" - the fallback is "atmel,24c02" + + - reg: The I2C address of the EEPROM. + +Optional properties: + + - pagesize: The length of the pagesize for writing. Please consult the + manual of your device, that value varies a lot. A wrong value + may result in data loss! If not specified, a safety value of + '1' is used which will be very slow. + + - read-only: This parameterless property disables writes to the eeprom. + + - size: Total eeprom size in bytes. + + - no-read-rollover: This parameterless property indicates that the + multi-address eeprom does not automatically roll over + reads to the next slave address. Please consult the + manual of your device. + + - wp-gpios: GPIO to which the write-protect pin of the chip is connected. + +Example: + +eeprom@52 { + compatible = "atmel,24c32"; + reg = <0x52>; + pagesize = <32>; + wp-gpios = <&gpio1 3 0>; +}; diff --git a/Documentation/devicetree/bindings/eeprom/eeprom.txt b/Documentation/devicetree/bindings/eeprom/eeprom.txt deleted file mode 100644 index 27f2bc15298a..000000000000 --- a/Documentation/devicetree/bindings/eeprom/eeprom.txt +++ /dev/null @@ -1,47 +0,0 @@ -EEPROMs (I2C) - -Required properties: - - - compatible : should be "<manufacturer>,<type>", like these: - - "atmel,24c00", "atmel,24c01", "atmel,24c02", "atmel,24c04", - "atmel,24c08", "atmel,24c16", "atmel,24c32", "atmel,24c64", - "atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024" - - "catalyst,24c32" - - "microchip,24c128" - - "ramtron,24c64" - - "renesas,r1ex24002" - - The following manufacturers values have been deprecated: - "at", "at24" - - If there is no specific driver for <manufacturer>, a generic - device with <type> and manufacturer "atmel" should be used. - Possible types are: - "24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64", - "24c128", "24c256", "24c512", "24c1024", "spd" - - - reg : the I2C address of the EEPROM - -Optional properties: - - - pagesize : the length of the pagesize for writing. Please consult the - manual of your device, that value varies a lot. A wrong value - may result in data loss! If not specified, a safety value of - '1' is used which will be very slow. - - - read-only: this parameterless property disables writes to the eeprom - - - size: total eeprom size in bytes - -Example: - -eeprom@52 { - compatible = "atmel,24c32"; - reg = <0x52>; - pagesize = <32>; -}; diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt index ff7bf37deb43..e199695b1c96 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt @@ -5,6 +5,7 @@ The MediaTek's I2C controller is used to interface with I2C devices. Required properties: - compatible: value should be either of the following. "mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for MediaTek MT2701 + "mediatek,mt2712-i2c": for MediaTek MT2712 "mediatek,mt6577-i2c": for MediaTek MT6577 "mediatek,mt6589-i2c": for MediaTek MT6589 "mediatek,mt7622-i2c": for MediaTek MT7622 diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt index aa097045a10e..34d91501342e 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt @@ -1,10 +1,19 @@ * NXP PCA954x I2C bus switch +The driver supports NXP PCA954x and PCA984x I2C mux/switch devices. + Required Properties: - compatible: Must contain one of the following. - "nxp,pca9540", "nxp,pca9542", "nxp,pca9543", "nxp,pca9544", - "nxp,pca9545", "nxp,pca9546", "nxp,pca9547", "nxp,pca9548" + "nxp,pca9540", + "nxp,pca9542", + "nxp,pca9543", + "nxp,pca9544", + "nxp,pca9545", + "nxp,pca9546", "nxp,pca9846", + "nxp,pca9547", "nxp,pca9847", + "nxp,pca9548", "nxp,pca9848", + "nxp,pca9849" - reg: The I2C address of the device. |