diff options
Diffstat (limited to 'Documentation/pinctrl.txt')
| -rw-r--r-- | Documentation/pinctrl.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt index 73fe71f5555d..8d92fc1a73a3 100644 --- a/Documentation/pinctrl.txt +++ b/Documentation/pinctrl.txt @@ -1264,7 +1264,7 @@ The semantics of the pinctrl APIs are: Usually the pin control core handled the get/put pair and call out to the device drivers bookkeeping operations, like checking available functions and -the associated pins, whereas the enable/disable pass on to the pin controller +the associated pins, whereas select_state pass on to the pin controller driver which takes care of activating and/or deactivating the mux setting by quickly poking some registers. @@ -1361,8 +1361,9 @@ function, but with different named in the mapping as described under "Advanced mapping" above. So that for an SPI device, we have two states named "pos-A" and "pos-B". -This snippet first muxes the function in the pins defined by group A, enables -it, disables and releases it, and muxes it in on the pins defined by group B: +This snippet first initializes a state object for both groups (in foo_probe()), +then muxes the function in the pins defined by group A, and finally muxes it in +on the pins defined by group B: #include <linux/pinctrl/consumer.h> |