This is a note to let you know that I've just added the patch titled
counter: microchip-tcb-capture: Fix CMR value check
to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-testing branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will be merged to the staging-next branch sometime soon, after it passes testing, and the merge window is open.
If you have any questions about this process, please let me know.
From 3418bd7cfce0bd8ef1ccedc4655f9f86f6c3b0ca Mon Sep 17 00:00:00 2001
From: William Breathitt Gray vilhelm.gray@gmail.com Date: Sat, 14 Nov 2020 18:28:05 -0500 Subject: counter: microchip-tcb-capture: Fix CMR value check
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") Signed-off-by: William Breathitt Gray vilhelm.gray@gmail.com Acked-by: Alexandre Belloni alexandre.belloni@bootlin.com Acked-by: Kamel Bouhara kamel.bouhara@bootlin.com Cc: Stable@vger.kernel.org Link: https://lore.kernel.org/r/20201114232805.253108-1-vilhelm.gray@gmail.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.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; }