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2020-02-26dt-bindings: i2c: at91: document optional bus recovery propertiesKamel Bouhara1-0/+10
The at91 I2C controller can support bus recovery by re-assigning SCL and SDA to gpios. Add the optional pinctrl and gpio properties to do so. Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com> [codrin.ciubotariu@microchip.com: rebased] Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-15Merge branch 'i2c/for-current' into i2c/for-5.6Wolfram Sang1-2/+4
2020-01-06dt-bindings: i2c: at91: fix i2c-sda-hold-time-ns documentation for sam9x60Eugen Hristev1-2/+4
SAM9X60 also supports i2c-sda-hold-time-ns. Fix the documentation accordingly. Fixes: 2034e3f4c9a5 ("dt-bindings: i2c: at91: add new compatible") Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-06dt-bindings: i2c: at91: cosmetic formatting of compatible listEugen Hristev1-4/+10
Format the list of compatibles with one compatible per line. Suggested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-10-24dt-bindings: i2c: at91: add new compatibleEugen Hristev1-1/+2
Add compatible for new Microchip SoC, sam9x60 Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Reviewed-by: Peter Rosin <peda@axentia.se> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-12-11dt-bindings: i2c: Use correct vendor prefix for AtmelThierry Reding1-1/+1
The "at," prefix was never correct for Atmel, so fix the few occurrences that got it wrong. Use "atmel," instead. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> Acked-by: Peter Rosin <peda@axentia.se> [wsa: merged two patches into one, dropped 'trivial-devices' hunk which needs to go in seperately] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-12-03i2c: at91: add support for the HOLD fieldLudovic Desroches1-1/+4
The hold field allows to configure the data hold time which can be set with the help of the generic binding 'i2c-sda-hold-time-ns'. This feature has been introduced with SAMA5D4 SoC family. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-06-10i2c: at91: update documentation for DT bindingsCyrille Pitchen1-2/+28
add a new value "atmel,sama5d2-i2c" for the "compatible" property. add a new optional property "atmel,fifo-size" to enable FIFO support when available. add missing optional properties "dmas" and "dma-names". Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-03-12i2c: at91: Add device tree property to set clock-frequencyMarek Roszko1-0/+2
This adds the ability to set "clock-frequency" in the device tree for the at91 i2cbus following the naming of other i2c bus implementations. If the property is not set,the clock frequency will default to the previously used define of 100KHz. Signed-off-by: Marek Roszko <mark.roszko@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-01-05i2c: at91: document clock propertiesBoris BREZILLON1-0/+2
Document the clock properties required by the at91 i2c bus driver. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2012-11-15bindings: i2c: use consistent naming for i2c binding descriptionsWolfram Sang1-0/+30
Filenames of devictree binding documentation seems to be arbitrary and for me it is unneeded hazzle to find the corresponding documentation for a specific driver. Naming the description the same as the driver is a lot easier and makes sense to me since the driver defines the binding it understands. Also, remove a reference in one source to the binding documentation, since path information easily gets stale. Signed-off-by: Wolfram Sang <wolfram@the-dreams.de> Cc: Rob Herring <robherring2@gmail.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>