kernel/drivers/clocksource/moxart_timer.c, branch linux-rolling-stable

clocksource/drivers/fttmr010: Merge Moxa into FTTMR010

2017-06-12T08:45:10Z

This merges the Moxa Art timer driver into the Faraday FTTMR010 driver and replaces all Kconfig symbols to use the Faraday driver instead. We are now so similar that the drivers can be merged by just adding a few lines to the Faraday timer. Differences: - The Faraday driver explicitly sets the counter to count upwards for the clocksource, removing the need for the clocksource core to invert the value. - The Faraday driver also handles sched_clock() On the Aspeed, the counter can only count downwards, so support the timers in downward-counting mode as well, and flag the Aspeed to use this mode. This mode was tested on the Gemini so I have high hopes that it'll work fine on the Aspeed as well. After this we have one driver for all three SoCs and a generic Faraday FTTMR010 timer driver, which is nice. Cc: Joel Stanley Cc: Jonas Jensen Signed-off-by: Linus Walleij Reviewed-by: Joel Stanley Tested-by: Joel Stanley Signed-off-by: Daniel Lezcano

clocksource/drivers/moxart: Plug memory and mapping leaks

2016-12-19T10:19:57Z

If of_iomap() or any other subsequent function fails moxart_timer_init() exits without freeing memory and unmapping the timer base. Add proper cleanup points. Signed-off-by: Sudip Mukherjee Cc: Daniel Lezcano Cc: Sudip Mukherjee Link: http://lkml.kernel.org/r/1482099996-1524-1-git-send-email-sudipm.mukherjee@gmail.com Signed-off-by: Thomas Gleixner

clocksource/drivers/moxart: Replace panic by pr_err

2016-09-12T05:28:38Z

The clksrc-of code is supposed to catch the return code and fail gracefully. Don't panic on error, but print the error and exit with a relevant error code. Signed-off-by: Daniel Lezcano Acked-by: Joel Stanley

clocksource/drivers/moxart: Replace setup_irq by request_irq

2016-09-12T05:28:23Z

Save memory space and line of code by replacing setup_irq by request_irq. Signed-off-by: Daniel Lezcano Acked-by: Joel Stanley

clocksource/drivers/moxart: Add Aspeed support

2016-09-09T12:15:47Z

The Aspeed SoC has timer IP with a very similar register layout to the moxart timer. This patch adds support for the fourth and fifth gen aspeed SoCs, and has been tested on the ast2400 and ast2500. Signed-off-by: Joel Stanley Acked-by: Rob Herring Signed-off-by: Daniel Lezcano

clocksource/drivers/moxart: Use struct to hold state

2016-09-09T12:15:36Z

Add a struct moxart_timer to hold the driver state, including the irqaction and struct clock_event_device. Most importantly this holds values for enabling and disabling the timer, so future support can be added for devices that use different bits for enable/disable. In preparation for future hardware support we add a MOXART prefix to the existing values. Signed-off-by: Joel Stanley Signed-off-by: Daniel Lezcano

clocksource/drivers/moxart: Refactor enable/disable

2016-09-09T12:15:21Z

This patch abstracts the enable and disable register writes into their own functions in preparation for future changes to use SoC specific values for the writes. Signed-off-by: Joel Stanley Signed-off-by: Daniel Lezcano

clocksources: Switch back to the clksrc table

2016-06-28T08:19:35Z

All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: Daniel Lezcano For exynos_mct and samsung_pwm_timer: Acked-by: Krzysztof Kozlowski For arch/arc: Acked-by: Vineet Gupta For mediatek driver: Acked-by: Matthias Brugger For the Rockchip-part Acked-by: Heiko Stuebner For STi : Acked-by: Patrice Chotard For the mps2-timer.c and versatile.c changes: Acked-by: Liviu Dudau For the OXNAS part : Acked-by: Neil Armstrong For LPC32xx driver: Acked-by: Sylvain Lemieux For Broadcom Kona timer change: Acked-by: Ray Jui For Sun4i and Sun5i: Acked-by: Chen-Yu Tsai For Meson6: Acked-by: Carlo Caione For Keystone: Acked-by: Santosh Shilimkar For NPS: Acked-by: Noam Camus For bcm2835: Acked-by: Eric Anholt

clocksource/drivers/moxart: Convert init function to return error

2016-06-28T08:19:24Z

The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano

clockevents/drivers/moxart: Migrate to new 'set-state' interface

2015-08-10T09:40:32Z

Migrate moxart driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Jonas Jensen Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano