linux-kernel - [PATCH v3 0/3] clocksource/drivers/arm_global

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Message-ID: <20240225151336.2728533-1-martin.blumenstingl@googlemail.com>
Date: Sun, 25 Feb 2024 16:13:33 +0100
From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To: daniel.lezcano@...aro.org,
	tglx@...utronix.de
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	patrice.chotard@...s.st.com,
	linux-amlogic@...ts.infradead.org,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH v3 0/3] clocksource/drivers/arm_global_timer: Three improvements

These are three improvements / fixes for the arm_global_timer driver.

Changes from v2 at [1]:
- add patches 1 and 2 (which is why this is now a series instead of a
  single patch) as in the code review process more issues have been
  spotted that need fixing
- remove "psv < 0" check from patch 3 (as this check is now impossible
  as patch 2 makes the variable in question an unsigned long with a
  check for zero and returning before decrementing psv).

Changes from v1 at [0]:
- use FIELD_FIT() to check whether psv overflows the register
- update the description accordingly


[0] https://lore.kernel.org/lkml/20240221214348.2299636-1-martin.blumenstingl@googlemail.com/
[1] https://lore.kernel.org/lkml/20240224213529.2601333-1-martin.blumenstingl@googlemail.com/


Martin Blumenstingl (3):
  clocksource/drivers/arm_global_timer: Make gt_target_rate unsigned
    long
  clocksource/drivers/arm_global_timer: Guard against division by zero
  clocksource/drivers/arm_global_timer: Simplify prescaler register
    access

 drivers/clocksource/arm_global_timer.c | 31 ++++++++++++--------------
 1 file changed, 14 insertions(+), 17 deletions(-)

-- 
2.44.0