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* i2c: sh_mobile: document support for r8a7796 (R-Car M3-W)Simon Horman2017-01-281-0/+1
| | | | | | | | | | Explicitly list per-SoC binding for r8a7796. No driver change is required as the initialisation sequence is currently the same as for the R-Car Gen3 fallback binding. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: sh_mobile: Add per-Generation fallback bindingsSimon Horman2016-12-111-3/+14
| | | | | | | | | | | | | | | Add per-Generation fallback bindings for R-Car SoCs. This is in keeping with the compatibility string scheme is being adopted for drivers for Renesas SoCs. Also, improve readability by listing the rmobile fallback compatibility string after the more-specific compatibility strings they provide a fallback for. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: sh_mobile: add support for r8a7795 (R-Car H3)Wolfram Sang2015-10-201-0/+1
| | | | | | | | | Enable the I2C core for this SoC. It is compitable to Gen2 SoCs, so reuse the settings. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: sh_mobile: add DMA supportWolfram Sang2014-11-121-0/+5
| | | | | | | | | | | | | Make it possible to transfer i2c message buffers via DMA. Start/Stop/Sending_Slave_Address is still handled using the old state machine, it is sending the actual data that is done via DMA. This is least intrusive and allows us to work with the message buffers directly instead of preparing a custom buffer which involves copying the data around. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> [wsa: fixed an uninitialized var problem] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: sh_mobile: Document SoC-specific bindingsGeert Uytterhoeven2014-11-101-0/+9
| | | | | | | | | Explicitly list the various SoC-specific compatible properties. This allows checkpatch to validate DTSes. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: sh_mobile: add devicetree documentationWolfram Sang2014-05-221-0/+26
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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