From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH v2 00/12] ARM: davinci: modernize the timer support
Date: Mon, 4 Feb 2019 18:17:45 +0100 [thread overview]
Message-ID: <20190204171757.32073-1-brgl@bgdev.pl> (raw)
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This series removes the legacy timer code from mach-davinci in favor of
a new clocksource driver it introduces.
The first patch fixes a device tree bug that's been around for a while.
Unfortunately any systems shipped with the buggy device will stop booting
once they switch to the new clocksource driver.
Patch 2 adds a new clocksource driver for davinci.
Patch 3 enables the new driver for device-tree based systems.
Patch 4 adds a WARN_ON() to the machine code of all davinci boards
which is triggered if clk_get() for the timer clock fails. This is needed
as the new driver expects the clock to be functional and doesn't check it.
Patches 5-6 and 8-11 switch the board files to using the new
clocksource driver while patch 7 moves some necessary defines to
a different place since we'll be removing the file that contains them.
Patch 12 removes legacy timer code.
v1 -> v2:
- changed the license to GPL-only
- dropped regmap usage due to the additional code paths making the
code too slow
- minor code rearrangement
- fixed the da830 timer configuration
- correctly assign the timer halfs to clocksource and clockevent
- sqashed the commits adding WARN() when clk_get() fails
- used WARN_ON() and added a return when clk_get() fails to avoid
entering the timer driver without a valid clock
- request the register range before iomapping it
- simplified the configuration structure (dropped the additional cmp struct)
Bartosz Golaszewski (12):
ARM: dts: da850: fix interrupt numbers for clocksource
clocksource: davinci-timer: new driver
ARM: davinci: enable the clocksource driver for DT mode
ARM: davinci: WARN_ON() if clk_get() fails
ARM: davinci: da850: switch to using the clocksource driver
ARM: davinci: da830: switch to using the clocksource driver
ARM: davinci: move timer definitions to davinci.h
ARM: davinci: dm355: switch to using the clocksource driver
ARM: davinci: dm365: switch to using the clocksource driver
ARM: davinci: dm644x: switch to using the clocksource driver
ARM: davinci: dm646x: switch to using the clocksource driver
ARM: davinci: remove legacy timer support
arch/arm/Kconfig | 1 +
arch/arm/boot/dts/da850.dtsi | 2 +-
arch/arm/mach-davinci/Makefile | 3 +-
arch/arm/mach-davinci/da830.c | 53 ++-
arch/arm/mach-davinci/da850.c | 60 ++-
arch/arm/mach-davinci/davinci.h | 3 +
arch/arm/mach-davinci/devices-da8xx.c | 1 -
arch/arm/mach-davinci/devices.c | 19 -
arch/arm/mach-davinci/dm355.c | 40 +-
arch/arm/mach-davinci/dm365.c | 34 +-
arch/arm/mach-davinci/dm644x.c | 40 +-
arch/arm/mach-davinci/dm646x.c | 40 +-
arch/arm/mach-davinci/include/mach/common.h | 17 -
arch/arm/mach-davinci/include/mach/time.h | 35 --
arch/arm/mach-davinci/time.c | 414 -------------------
drivers/clocksource/Kconfig | 5 +
drivers/clocksource/Makefile | 1 +
drivers/clocksource/timer-davinci.c | 431 ++++++++++++++++++++
include/clocksource/timer-davinci.h | 44 ++
19 files changed, 647 insertions(+), 596 deletions(-)
delete mode 100644 arch/arm/mach-davinci/include/mach/time.h
delete mode 100644 arch/arm/mach-davinci/time.c
create mode 100644 drivers/clocksource/timer-davinci.c
create mode 100644 include/clocksource/timer-davinci.h
--
2.20.1
next reply other threads:[~2019-02-04 17:18 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 17:17 Bartosz Golaszewski [this message]
2019-02-04 17:17 ` [PATCH v2 01/12] ARM: dts: da850: fix interrupt numbers for clocksource Bartosz Golaszewski
2019-02-05 1:18 ` David Lechner
2019-02-08 13:09 ` Sekhar Nori
2019-02-04 17:17 ` [PATCH v2 02/12] clocksource: davinci-timer: new driver Bartosz Golaszewski
2019-02-05 2:13 ` David Lechner
2019-02-05 2:37 ` David Lechner
2019-02-08 13:24 ` Sekhar Nori
2019-02-04 17:17 ` [PATCH v2 03/12] ARM: davinci: enable the clocksource driver for DT mode Bartosz Golaszewski
2019-02-05 2:16 ` David Lechner
2019-02-04 17:17 ` [PATCH v2 04/12] ARM: davinci: WARN_ON() if clk_get() fails Bartosz Golaszewski
2019-02-05 2:18 ` David Lechner
2019-02-26 12:08 ` Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 05/12] ARM: davinci: da850: switch to using the clocksource driver Bartosz Golaszewski
2019-02-05 2:35 ` David Lechner
2019-02-08 12:06 ` Sekhar Nori
2019-02-08 12:34 ` Bartosz Golaszewski
2019-02-08 12:37 ` Sekhar Nori
2019-02-08 12:47 ` Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 06/12] ARM: davinci: da830: " Bartosz Golaszewski
2019-02-05 2:36 ` David Lechner
2019-02-08 12:23 ` Sekhar Nori
2019-02-08 12:46 ` Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 07/12] ARM: davinci: move timer definitions to davinci.h Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 08/12] ARM: davinci: dm355: switch to using the clocksource driver Bartosz Golaszewski
2019-02-08 12:34 ` Sekhar Nori
2019-02-26 12:09 ` Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 09/12] ARM: davinci: dm365: " Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 10/12] ARM: davinci: dm644x: " Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 11/12] ARM: davinci: dm646x: " Bartosz Golaszewski
2019-02-04 17:17 ` [PATCH v2 12/12] ARM: davinci: remove legacy timer support Bartosz Golaszewski
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