From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: linux-clk@vger.kernel.org, openbmc@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org,
devicetree@vger.kernel.org,
"Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
"Michael Turquette" <mturquette@baylibre.com>,
"Stephen Boyd" <sboyd@kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Avi Fishman" <avifishman70@gmail.com>,
"Tomer Maimon" <tmaimon77@gmail.com>,
"Tali Perry" <tali.perry1@gmail.com>,
"Patrick Venture" <venture@google.com>,
"Nancy Yuen" <yuenn@google.com>,
"Benjamin Fair" <benjaminfair@google.com>,
"Daniel Lezcano" <daniel.lezcano@linaro.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Wim Van Sebroeck" <wim@linux-watchdog.org>,
"Guenter Roeck" <linux@roeck-us.net>
Subject: [PATCH v3 0/7] Nuvoton WPCM450 clock and reset driver
Date: Sun, 8 May 2022 21:43:25 +0200 [thread overview]
Message-ID: <20220508194333.2170161-1-j.neuschaefer@gmx.net> (raw)
This series adds support for the clock and reset controller in the Nuvoton
WPCM450 SoC. This means that the clock rates for peripherals will be calculated
automatically based on the clock tree as it was preconfigured by the bootloader.
The 24 MHz dummy clock, that is currently in the devicetree, is no longer needed.
Somewhat unfortunately, this also means that there is a breaking change once
the devicetree starts relying on the clock driver, but I find it acceptable in
this case, because WPCM450 is still at a somewhat early stage.
Upstreaming plan (although other suggestions are welcome):
Once reviewed,
- The ARM/dts changes should go through Joel Stanley's bmc tree
- The clocksource/timer changes should probably go via Daniel Lezcano and TIP
- The watchdog patch should go via the watchdog tree
- The clock controller bindings and driver should go through the clk tree
- It might make sense to delay the final ARM/dts patch ("ARM: dts: wpcm450:
Switch clocks to clock controller") until next cycle to make sure it is
merged after the clock driver.
v3:
- Changed "refclk" string to "ref"
- Fixed some dead code in the driver
- Added clk_prepare_enable call to the watchdog restart handler
- Added a few review tags
v2:
- https://lore.kernel.org/lkml/20220429172030.398011-1-j.neuschaefer@gmx.net/
- various small improvements
v1:
- https://lore.kernel.org/lkml/20220422183012.444674-1-j.neuschaefer@gmx.net/
Jonathan Neuschäfer (7):
dt-bindings: timer: nuvoton,npcm7xx-timer: Allow specifying all clocks
clocksource: timer-npcm7xx: Enable timer 1 clock before use
watchdog: npcm: Enable clock if provided
dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller
ARM: dts: wpcm450: Add clock controller node
clk: wpcm450: Add Nuvoton WPCM450 clock/reset controller driver
ARM: dts: wpcm450: Switch clocks to clock controller
.../bindings/clock/nuvoton,wpcm450-clk.yaml | 66 ++++
.../bindings/timer/nuvoton,npcm7xx-timer.yaml | 8 +-
arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 29 +-
drivers/clk/Makefile | 1 +
drivers/clk/clk-wpcm450.c | 363 ++++++++++++++++++
drivers/clocksource/timer-npcm7xx.c | 10 +
drivers/reset/Kconfig | 2 +-
drivers/watchdog/npcm_wdt.c | 18 +
.../dt-bindings/clock/nuvoton,wpcm450-clk.h | 67 ++++
9 files changed, 555 insertions(+), 9 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml
create mode 100644 drivers/clk/clk-wpcm450.c
create mode 100644 include/dt-bindings/clock/nuvoton,wpcm450-clk.h
--
2.35.1
next reply other threads:[~2022-05-08 19:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-08 19:43 Jonathan Neuschäfer [this message]
2022-05-08 19:43 ` [PATCH v3 1/7] dt-bindings: timer: nuvoton,npcm7xx-timer: Allow specifying all clocks Jonathan Neuschäfer
2022-05-08 19:43 ` [PATCH v3 2/7] clocksource: timer-npcm7xx: Enable timer 1 clock before use Jonathan Neuschäfer
2022-05-09 11:37 ` Daniel Lezcano
2022-11-01 11:46 ` Jonathan Neuschäfer
2022-05-08 19:43 ` [PATCH v3 3/7] watchdog: npcm: Enable clock if provided Jonathan Neuschäfer
2022-05-10 2:31 ` Guenter Roeck
2022-05-17 14:02 ` Jonathan Neuschäfer
2022-05-08 19:43 ` [PATCH v3 4/7] dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller Jonathan Neuschäfer
2022-05-09 11:04 ` Krzysztof Kozlowski
2022-05-08 19:43 ` [PATCH v3 5/7] ARM: dts: wpcm450: Add clock controller node Jonathan Neuschäfer
2022-05-08 19:43 ` [PATCH v3 6/7] clk: wpcm450: Add Nuvoton WPCM450 clock/reset controller driver Jonathan Neuschäfer
2022-05-08 19:43 ` [PATCH v3 7/7] ARM: dts: wpcm450: Switch clocks to clock controller Jonathan Neuschäfer
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