Re: [PATCH v5 00/10] Atmel System Timer cleanups

From: Daniel Lezcano
Date: Fri Mar 13 2015 - 06:23:15 EST


On 03/12/2015 01:07 PM, Alexandre Belloni wrote:
This patch set cleans up the system timer driver.

The main goal is to get rid of the mach/ headers dependency. At the same time,
it introduces proper probing and locking (using a regmap) for the watchdog
driver.

This is based on 4.0-rc1 and will have two merge conflicts with my cleanup #1 in
mach-at91/at91rm9200.c

It also needs this patch to probe the watchdog properly:
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-March/327274.html


Hi Alexandre,

through which tree do you want this patchset to be merged ?

Thanks
-- Daniel

Changes in v5:
- Documented the watchdog compatible
- Switched to simple-mfd to probe the system timer subnodes
- Selected ATMEL_ST from mach-at91/Kconfig instead of using def_bool SOC_AT91RM9200
- Reordered the atmel-st probe cleanup and its move to driver/clocksource
- Added a patch to replace setup_irq by request_irq
- Merged the reset handling in the watchdog timer as we are using the watchdog
anyway to reset the board.
- Used a simple space after a #define for registers

Changes in v4:
- Added MODULE_* metadata in at91rm9200-reset
- Proper copyright in at91rm9200-reset
- Use BIT() in atmel-st.h
- changed MODULE_ALIAS in at91rm9200_wdt.c

Changes in v3:
- stop using an mfd and get the syscon directly from the watchdog driver
- introduce a proper reset driver to handle reset

Changes in v2:
- cleaned up more includes in the watchdog driver
- stop using if OF when selecting CLKSRC_OF
- stop initializing .owner


Alexandre Belloni (10):
ARM: at91/dt: declare atmel,at91rm9200-st as a syscon
mfd: syscon: Add atmel system timer registers definition
watchdog: at91rm9200: use the system timer syscon
watchdog: at91rm9200: implement restart handler
ARM: at91: at91rm9200: remove deprecated arm_pm_restart
ARM: at91: properly initialize timer
ARM: at91: time: move the system timer driver to drivers/clocksource
clocksource: atmel-st: use syscon/regmap
clocksource: atmel-st: remove mach/hardware dependency
ARM: at91: remove useless include

.../devicetree/bindings/arm/atmel-at91.txt | 4 +-
arch/arm/boot/dts/at91rm9200.dtsi | 6 +-
arch/arm/mach-at91/Kconfig | 1 +
arch/arm/mach-at91/Makefile | 2 +-
arch/arm/mach-at91/at91rm9200.c | 19 ----
arch/arm/mach-at91/generic.h | 3 -
arch/arm/mach-at91/include/mach/at91_st.h | 61 -----------
drivers/clocksource/Kconfig | 4 +
drivers/clocksource/Makefile | 1 +
.../clocksource/timer-atmel-st.c | 115 ++++++++-------------
drivers/watchdog/Kconfig | 2 +-
drivers/watchdog/at91rm9200_wdt.c | 61 +++++++++--
include/linux/mfd/syscon/atmel-st.h | 49 +++++++++
13 files changed, 164 insertions(+), 164 deletions(-)
delete mode 100644 arch/arm/mach-at91/include/mach/at91_st.h
rename arch/arm/mach-at91/at91rm9200_time.c => drivers/clocksource/timer-atmel-st.c (74%)
create mode 100644 include/linux/mfd/syscon/atmel-st.h



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