Linux-RTC Archive on
 help / color / Atom feed
From: Alexandre Belloni <>
To: Srinivas Neeli <>
Subject: Re: [PATCH v2] rtc: zynqmp: Clear alarm interrupt status before interrupt enable
Date: Wed, 12 Feb 2020 12:23:42 +0100
Message-ID: <> (raw)
In-Reply-To: <>

On 12/02/2020 15:54:39+0530, Srinivas Neeli wrote:
> Fix multiple occurring interrupts for alarm interrupt. RTC module doesn't
> clear the alarm interrupt status bit immediately after the interrupt is
> triggered.This is due to the sticky nature of the alarm interrupt status
> register. The alarm interrupt status register can be cleared only after
> the second counter outruns the set alarm value. To fix multiple spurious
> interrupts, disable alarm interrupt in the handler and clear the status
> bit before enabling the alarm interrupt.
> Fixes: 11143c19eb57 ("rtc: add xilinx zynqmp rtc driver")
> Signed-off-by: Srinivas Neeli <>
> ---
> Changes in V2:
> Addressed Michal Simek comments
>  - Removed new line in declartion part.
>  - Added new line before return.
> ---
>  drivers/rtc/rtc-zynqmp.c | 27 +++++++++++++++++++++++----
>  1 file changed, 23 insertions(+), 4 deletions(-)
Applied, thanks.

Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering

      parent reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-12 10:24 Srinivas Neeli
2020-02-12 10:48 ` Michal Simek
2020-02-12 11:23 ` Alexandre Belloni [this message]

Reply instructions:

You may reply publically 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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-RTC Archive on

Archives are clonable:
	git clone --mirror linux-rtc/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-rtc linux-rtc/ \
	public-inbox-index linux-rtc

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone