public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Andy Shevchenko <andy@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH v1 1/1] pinctrl: intel: No need to disable IRQs in the handler
Date: Thu,  4 Mar 2021 12:54:32 +0200	[thread overview]
Message-ID: <20210304105432.36544-1-andriy.shevchenko@linux.intel.com> (raw)

In IRQ handler interrupts are already disabled, hence no need
to repeat it. Even in the threaded case, which is disabled here,
it is not a problem because IRQ framework serializes descriptor
handling. Remove disabling IRQ part in the handler.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 93237d6e4316..268aaad3bb08 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -1173,16 +1173,15 @@ static int intel_gpio_community_irq_handler(struct intel_pinctrl *pctrl,
 	for (gpp = 0; gpp < community->ngpps; gpp++) {
 		const struct intel_padgroup *padgrp = &community->gpps[gpp];
 		unsigned long pending, enabled, gpp_offset;
-		unsigned long flags;
 
-		raw_spin_lock_irqsave(&pctrl->lock, flags);
+		raw_spin_lock(&pctrl->lock);
 
 		pending = readl(community->regs + community->is_offset +
 				padgrp->reg_num * 4);
 		enabled = readl(community->regs + community->ie_offset +
 				padgrp->reg_num * 4);
 
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+		raw_spin_unlock(&pctrl->lock);
 
 		/* Only interrupts that are enabled */
 		pending &= enabled;
-- 
2.30.1


             reply	other threads:[~2021-03-04 10:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-04 10:54 Andy Shevchenko [this message]
2021-03-04 11:18 ` [PATCH v1 1/1] pinctrl: intel: No need to disable IRQs in the handler Mika Westerberg
2021-03-04 15:41   ` Andy Shevchenko

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=20210304105432.36544-1-andriy.shevchenko@linux.intel.com \
    --to=andriy.shevchenko@linux.intel.com \
    --cc=andy@kernel.org \
    --cc=linus.walleij@linaro.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mika.westerberg@linux.intel.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox