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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-10 19:43:10 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-10 19:43:10 +0300 |
| commit | b8db3714d7479881e23de20735f60f1733723241 (patch) | |
| tree | 398e50ba60df642d66d470755ead99b24383daf5 /Documentation | |
| parent | 6905732c80bc7f85602abbe27f7bdc3fe81f56d0 (diff) | |
| parent | cbfff439c54f37fc363b1d365183fa61af43585c (diff) | |
| download | linux-b8db3714d7479881e23de20735f60f1733723241.tar.xz | |
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Mostly driver bugfixes, but also a few cleanups which are nice to have
out of the way"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: rk3x: Restore clock settings at resume time
i2c: Spelling s/acknowedge/acknowledge/
i2c: designware: save the preset value of DW_IC_SDA_HOLD
Documentation: i2c: slave-interface: add note for driver development
i2c: mux: demux-pinctrl: run properly with multiple instances
i2c: bcm-kona: fix inconsistent indenting
i2c: rcar: use proper device with dma_mapping_error
i2c: sh_mobile: use proper device with dma_mapping_error
i2c: mux: demux-pinctrl: invalidate properly when switching fails
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/i2c/slave-interface | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/i2c/slave-interface b/Documentation/i2c/slave-interface index 80807adb8ded..7e2a228f21bc 100644 --- a/Documentation/i2c/slave-interface +++ b/Documentation/i2c/slave-interface @@ -145,6 +145,11 @@ If you want to add slave support to the bus driver: * Catch the slave interrupts and send appropriate i2c_slave_events to the backend. +Note that most hardware supports being master _and_ slave on the same bus. So, +if you extend a bus driver, please make sure that the driver supports that as +well. In almost all cases, slave support does not need to disable the master +functionality. + Check the i2c-rcar driver as an example. |