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Input: iqs269a - increase interrupt handler return delay

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[ 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: 04e49867fa ("Input: add support for Azoteq IQS269A")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/Y7Rs484ypy4dab5G@nixie71
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jeff LaBundy
2023-01-03 11:58:59 -06:00
committed by Greg Kroah-Hartman
parent a6a70ab2bb
commit b7afc359f6
1 changed files with 1 additions and 1 deletions
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2
drivers/input/misc/iqs269a.c
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@@ -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,