linux-kernel - [PATCH 0/6] spin lock usage optimization for RTC drivers

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Date:   Wed, 3 Feb 2021 20:39:35 +0800
From:   Xiaofei Tan <tanxiaofei@...wei.com>
To:     <a.zummo@...ertech.it>, <alexandre.belloni@...tlin.com>
CC:     Xiaofei Tan <tanxiaofei@...wei.com>, <linux-rtc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>
Subject: [PATCH 0/6] spin lock usage optimization for RTC drivers

Replace spin_lock_irqsave with spin_lock in hard IRQ of RTC drivers.
There is no function changes, but may speed up if interrupt happen
too often.

Xiaofei Tan (6):
  rtc: cmos: Replace spin_lock_irqsave with spin_lock in hard IRQ
  rtc: pm8xxx: Replace spin_lock_irqsave with spin_lock in hard IRQ
  rtc: r7301: Replace spin_lock_irqsave with spin_lock in hard IRQ
  rtc: tegra: Replace spin_lock_irqsave with spin_lock in hard IRQ
  rtc: mxc: Replace spin_lock_irqsave with spin_lock in hard IRQ
  rtc: mxc_v2: Replace spin_lock_irqsave with spin_lock in hard IRQ

 drivers/rtc/rtc-cmos.c   | 5 ++---
 drivers/rtc/rtc-mxc.c    | 5 ++---
 drivers/rtc/rtc-mxc_v2.c | 7 +++----
 drivers/rtc/rtc-pm8xxx.c | 9 ++++-----
 drivers/rtc/rtc-r7301.c  | 5 ++---
 drivers/rtc/rtc-tegra.c  | 6 +++---
 6 files changed, 16 insertions(+), 21 deletions(-)

-- 
2.8.1