mbox series

[0/8] clocksource/drivers/timer-atmel-tcb: add sama5d2 support

Message ID 20191009224006.5021-1-alexandre.belloni@bootlin.com (mailing list archive)
Headers show
Series clocksource/drivers/timer-atmel-tcb: add sama5d2 support | expand

Message

Alexandre Belloni Oct. 9, 2019, 10:39 p.m. UTC 
This series mainly adds sama5d2 support where we need to avoid using
clock index 0 because that clock is never enabled by the driver.

There is also a rework of the 32khz clock handling so it is not used for
clockevents on 32 bit counter because the increased rate improves the
resolution and doesn't have any drawback with that counter width. This
replaces a patch that has been carried in the linux-rt tree for a while.

Alexandre Belloni (8):
  dt-bindings: mfd: atmel-tcb: convert bindings to json-schema
  dt-bindings: mfd: atmel,at91rm9200-tcb: add sama5d2 compatible
  ARM: dts: at91: sama5d2: add TCB GCLK
  clocksource/drivers/timer-atmel-tcb: rework 32khz clock selection
  clocksource/drivers/timer-atmel-tcb: fill tcb_config
  clocksource/drivers/timer-atmel-tcb: stop using the 32kHz for
    clockevents
  clocksource/drivers/timer-atmel-tcb: allow selecting first divider
  clocksource/drivers/timer-atmel-tcb: add sama5d2 support

 .../bindings/mfd/atmel,at91rm9200-tcb.yaml    | 113 ++++++++++++++++++
 .../devicetree/bindings/mfd/atmel-tcb.txt     |  56 ---------
 arch/arm/boot/dts/sama5d2.dtsi                |  12 +-
 drivers/clocksource/timer-atmel-tcb.c         | 101 +++++++++-------
 include/soc/at91/atmel_tcb.h                  |   1 +
 5 files changed, 178 insertions(+), 105 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/atmel,at91rm9200-tcb.yaml
 delete mode 100644 Documentation/devicetree/bindings/mfd/atmel-tcb.txt

Comments

Sebastian Andrzej Siewior Oct. 10, 2019, 8:26 a.m. UTC | #1 
On 2019-10-10 00:39:58 [+0200], Alexandre Belloni wrote:
> This series mainly adds sama5d2 support where we need to avoid using
> clock index 0 because that clock is never enabled by the driver.
> 
> There is also a rework of the 32khz clock handling so it is not used for
> clockevents on 32 bit counter because the increased rate improves the
> resolution and doesn't have any drawback with that counter width. This
> replaces a patch that has been carried in the linux-rt tree for a while.

Thank you for doing this!

Sebastian