From: Jeff LaBundy <jeff@labundy.com>
To: dmitry.torokhov@gmail.com
Cc: linux-input@vger.kernel.org, jeff@labundy.com
Subject: [PATCH 2/5] Input: iqs269a - increase interrupt handler return delay
Date: Mon, 28 Nov 2022 21:02:31 -0600 [thread overview]
Message-ID: <Y4V2R7GB48a2BOke@nixie71> (raw)
In-Reply-To: <Y4V16ey6osEaaZJ/@nixie71>
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@labundy.com>
---
drivers/input/misc/iqs269a.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/misc/iqs269a.c b/drivers/input/misc/iqs269a.c
index 5620a009bf55..711e67db71a4 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,
--
2.34.1
next prev parent reply other threads:[~2022-11-29 3:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-29 3:00 [PATCH 0/5] Miscellaneous fixes for Azoteq IQS269A Jeff LaBundy
2022-11-29 3:02 ` [PATCH 1/5] Input: iqs269a - drop unused device node references Jeff LaBundy
2022-12-15 9:31 ` Mattijs Korpershoek
2022-11-29 3:02 ` Jeff LaBundy [this message]
2022-12-15 9:32 ` [PATCH 2/5] Input: iqs269a - increase interrupt handler return delay Mattijs Korpershoek
2022-11-29 3:02 ` [PATCH 3/5] Input: iqs269a - configure device with a single block write Jeff LaBundy
2022-12-15 9:55 ` Mattijs Korpershoek
2022-11-29 3:02 ` [PATCH 4/5] Input: iqs269a - do not poll during suspend or resume Jeff LaBundy
2022-12-15 10:07 ` Mattijs Korpershoek
2022-11-29 3:03 ` [PATCH 5/5] Input: iqs269a - do not poll during ATI Jeff LaBundy
2022-12-15 10:22 ` Mattijs Korpershoek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Y4V2R7GB48a2BOke@nixie71 \
--to=jeff@labundy.com \
--cc=dmitry.torokhov@gmail.com \
--cc=linux-input@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.