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| author | William Breathitt Gray <william.gray@linaro.org> | 2022-09-27 18:53:38 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-30 14:32:35 +0200 |
| commit | 650ae67bbf7ba5ac193f053969612fbb93247b64 (patch) | |
| tree | bf80c0c98c877ded950722bbb4001d9d264ebb54 /drivers/counter/counter-chrdev.c | |
| parent | 7bbf842cdcff30ddd1da4ab9059cf92f9d1a4326 (diff) | |
| download | lwn-650ae67bbf7ba5ac193f053969612fbb93247b64.tar.gz lwn-650ae67bbf7ba5ac193f053969612fbb93247b64.zip | |
counter: Introduce the Signal polarity component
The Signal polarity component represents the active level of a
respective Signal. There are two possible states: positive (rising edge)
and negative (falling edge); enum counter_signal_polarity represents
these states. A convenience macro COUNTER_COMP_POLARITY() is provided
for driver authors to declare a Signal polarity component.
Cc: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/8f47d6e1db71a11bb1e2666f8e2a6e9d256d4131.1664204990.git.william.gray@linaro.org/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/b6e53438badcb6318997d13dd2fc052f97d808ac.1664318353.git.william.gray@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/counter/counter-chrdev.c')
| -rw-r--r-- | drivers/counter/counter-chrdev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/counter/counter-chrdev.c b/drivers/counter/counter-chrdev.c index 4e71a19d7e6a..120879ee2e87 100644 --- a/drivers/counter/counter-chrdev.c +++ b/drivers/counter/counter-chrdev.c @@ -487,6 +487,7 @@ static int counter_get_data(struct counter_device *const counter, case COUNTER_COMP_ENUM: case COUNTER_COMP_COUNT_DIRECTION: case COUNTER_COMP_COUNT_MODE: + case COUNTER_COMP_SIGNAL_POLARITY: switch (comp_node->component.scope) { case COUNTER_SCOPE_DEVICE: ret = comp->device_u32_read(counter, &value_u32); |