This is a note to let you know that I've just added the patch titled
Input: iqs269a - increase interrupt handler return delay
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-iqs269a-increase-interrupt-handler-return-dela.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 20f687d958723ae9b25a476d2e9ca9bee1e6a472
Author: Jeff LaBundy <jeff@xxxxxxxxxxx>
Date: Tue Jan 3 11:58:59 2023 -0600
Input: iqs269a - increase interrupt handler return delay
[ Upstream commit e023cc4abde3c01b895660b0e5a8488deb36b8c1 ]
The time the device takes to deassert its RDY output following an
I2C stop condition scales with the core clock frequency.
To prevent level-triggered interrupts from being reasserted after
the interrupt handler returns, increase the time before returning
to account for the worst-case delay (~140 us) plus margin.
Fixes: 04e49867fad1 ("Input: add support for Azoteq IQS269A")
Signed-off-by: Jeff LaBundy <jeff@xxxxxxxxxxx>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/Y7Rs484ypy4dab5G@nixie71
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/input/misc/iqs269a.c b/drivers/input/misc/iqs269a.c
index ea3c97c5f764f..ea3401a1000f0 100644
--- a/drivers/input/misc/iqs269a.c
+++ b/drivers/input/misc/iqs269a.c
@@ -153,7 +153,7 @@
#define IQS269_PWR_MODE_POLL_SLEEP_US IQS269_ATI_POLL_SLEEP_US
#define IQS269_PWR_MODE_POLL_TIMEOUT_US IQS269_ATI_POLL_TIMEOUT_US
-#define iqs269_irq_wait() usleep_range(100, 150)
+#define iqs269_irq_wait() usleep_range(200, 250)
enum iqs269_local_cap_size {
IQS269_LOCAL_CAP_SIZE_0,
