[PATCH v2] counter: microchip-tcb-capture: Fix CMR value check

[William Breathitt Gray]

The ATMEL_TC_ETRGEDG_* defines are not masks but rather possible values
for CMR. This patch fixes the action_get() callback to properly check
for these values rather than mask them.

Fixes: 106b104137fd ("counter: Add microchip TCB capture counter")
Cc: Kamel Bouhara <kamel.bouh...@bootlin.com>
Acked-by: Alexandre Belloni <alexandre.bell...@bootlin.com>
Signed-off-by: William Breathitt Gray <vilhelm.g...@gmail.com>
---
 drivers/counter/microchip-tcb-capture.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/counter/microchip-tcb-capture.c 
b/drivers/counter/microchip-tcb-capture.c
index 039c54a78aa5..710acc0a3704 100644
--- a/drivers/counter/microchip-tcb-capture.c
+++ b/drivers/counter/microchip-tcb-capture.c
@@ -183,16 +183,20 @@ static int mchp_tc_count_action_get(struct counter_device 
*counter,
 
        regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr);
 
-       *action = MCHP_TC_SYNAPSE_ACTION_NONE;
-
-       if (cmr & ATMEL_TC_ETRGEDG_NONE)
+       switch (cmr & ATMEL_TC_ETRGEDG) {
+       default:
                *action = MCHP_TC_SYNAPSE_ACTION_NONE;
-       else if (cmr & ATMEL_TC_ETRGEDG_RISING)
+               break;
+       case ATMEL_TC_ETRGEDG_RISING:
                *action = MCHP_TC_SYNAPSE_ACTION_RISING_EDGE;
-       else if (cmr & ATMEL_TC_ETRGEDG_FALLING)
+               break;
+       case ATMEL_TC_ETRGEDG_FALLING:
                *action = MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE;
-       else if (cmr & ATMEL_TC_ETRGEDG_BOTH)
+               break;
+       case ATMEL_TC_ETRGEDG_BOTH:
                *action = MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE;
+               break;
+       }
 
        return 0;
 }
-- 
2.29.2