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counter: 104-quad-8: Fix Synapse action reported for Index signals 

commit 00f4bc5184 upstream.

Signal 16 and higher represent the device's Index lines. The
priv->preset_enable array holds the device configuration for these Index
lines. The preset_enable configuration is active low on the device, so
invert the conditional check in quad8_action_read() to properly handle
the logical state of preset_enable.

Fixes: f1d8a071d4 ("counter: 104-quad-8: Add Generic Counter interface support")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230316203426.224745-1-william.gray@linaro.org/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
William Breathitt Gray 2023-03-16 16:34:26 -04:00 committed by Greg Kroah-Hartman
parent 6284b686c2
commit 5a62d771e5
1 changed files with 1 additions and 1 deletions
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drivers/counter/104-quad-8.c
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@ -368,7 +368,7 @@ static int quad8_action_read(struct counter_device *counter,
/* Handle Index signals */
if (synapse->signal->id >= 16) {
if (priv->preset_enable[count->id])
if (!priv->preset_enable[count->id])
*action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
else
*action = COUNTER_SYNAPSE_ACTION_NONE;