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* [PATCH v6 0/3] riscv: rtc: sophgo: add mfd and rtc support for CV1800
@ 2024-01-15 16:05 Jingbao Qiu
  2024-01-15 16:05 ` [PATCH v6 1/3] dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC Jingbao Qiu
                   ` (2 more replies)
  0 siblings, 3 replies; 20+ messages in thread
From: Jingbao Qiu @ 2024-01-15 16:05 UTC (permalink / raw)
  To: alexandre.belloni, robh+dt, krzysztof.kozlowski+dt, conor+dt,
	chao.wei, unicorn_wang, paul.walmsley, palmer, aou
  Cc: linux-rtc, devicetree, linux-kernel, linux-riscv, dlan, inochiama

Real Time Clock (RTC) is an independently powered module
within the chip, which includes a 32KHz oscillator and
a Power On Reset/POR submodule. It can be used for time
display and timed alarm generation.

Power On Reset/POR submodule only using register resources
so it should be empty. The 32KHz oscillator only provides
pulses for RTC in hardware.

Changes since v5:
- remove unnecessary lock
- fix cv1800_rtc_alarm_irq_enable()
- remove duplicate checks
- using alrm->enabled instead of unconditionally
  enabling
- remove disable alarms on probe
- using rtc_update_irq() replace mess of alarm
- remove leak clk
- useing devm_rtc_allocate_device() and
  devm_rtc_register_device() instead old way
- add judgment for rtc_enable_sec_counter()
- add POR nodes in DTS. This POR device shares
  the register region with the RTC device

v5: https://lore.kernel.org/all/20240108072253.30183-1-qiujingbao.dlmu@gmail.com/

Changes since v4:
- remove POR dt-bindings because it empty
- remove MFD dt-bindings because SoC does
  not have MFDs
- add syscon attribute to share registers
  with POR

v4: https://lore.kernel.org/all/20231229090643.116575-1-qiujingbao.dlmu@gmail.com/

Changes since v3:
- temporarily not submitting RTC driver code
  waiting for communication with IC designer
- add MFD dt-bindings
- add POR dt-bindings

v3: https://lore.kernel.org/all/20231226100431.331616-1-qiujingbao.dlmu@gmail.com/

Changes since v2:
- add mfd support for CV1800
- add rtc to mfd
- using regmap replace iomap
- merge register address in dts

v2: https://lore.kernel.org/lkml/20231217110952.78784-1-qiujingbao.dlmu@gmail.com/

Changes since v1
- fix duplicate names in subject
- using RTC replace RTC controller
- improve the properties of dt-bindings
- using `unevaluatedProperties` replace `additionalProperties`
- dt-bindings passed the test
- using `devm_platform_ioremap_resource()` replace
  `platform_get_resource()` and `devm_ioremap_resource()`
- fix random order of the code
- fix wrong wrapping of the `devm_request_irq()` and map the flag with dts
- using devm_clk_get_enabled replace `devm_clk_get()` and
  `clk_prepare_enable()`
- fix return style
- add rtc clock calibration function
- use spinlock when write register on read/set time

v1: https://lore.kernel.org/lkml/20231121094642.2973795-1-qiujingbao.dlmu@gmail.com/

Jingbao Qiu (3):
  dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC
  rtc: sophgo: add rtc support for Sophgo CV1800 SoC
  riscv: dts: sophgo: add rtc dt node for CV1800

 .../bindings/rtc/sophgo,cv1800-rtc.yaml       |  55 +++
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi       |  12 +
 drivers/rtc/Kconfig                           |   7 +
 drivers/rtc/Makefile                          |   1 +
 drivers/rtc/rtc-cv1800.c                      | 397 ++++++++++++++++++
 5 files changed, 472 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
 create mode 100644 drivers/rtc/rtc-cv1800.c


base-commit: e3d3fe7e7bf08820a83c9d9a4c38c7b29a2927f1
-- 
2.43.0


^ permalink raw reply	[flat|nested] 20+ messages in thread

end of thread, other threads:[~2024-01-17 12:59 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-01-15 16:05 [PATCH v6 0/3] riscv: rtc: sophgo: add mfd and rtc support for CV1800 Jingbao Qiu
2024-01-15 16:05 ` [PATCH v6 1/3] dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC Jingbao Qiu
2024-01-15 16:05 ` [PATCH v6 2/3] rtc: sophgo: add rtc support for Sophgo CV1800 SoC Jingbao Qiu
2024-01-16  7:46   ` Krzysztof Kozlowski
2024-01-15 16:06 ` [PATCH v6 3/3] riscv: dts: sophgo: add rtc dt node for CV1800 Jingbao Qiu
2024-01-16  7:44   ` Krzysztof Kozlowski
2024-01-16 14:41     ` Jingbao Qiu
2024-01-16 15:25       ` Krzysztof Kozlowski
2024-01-16 15:51         ` Jingbao Qiu
2024-01-16 16:03           ` Krzysztof Kozlowski
2024-01-16 16:29             ` Jingbao Qiu
2024-01-16 16:53               ` Alexandre Belloni
2024-01-17  2:54                 ` Jingbao Qiu
2024-01-17  9:01                   ` Alexandre Belloni
2024-01-17 10:12                     ` Jingbao Qiu
2024-01-16 16:58               ` Krzysztof Kozlowski
2024-01-17  3:24                 ` Jingbao Qiu
2024-01-17  7:28                   ` Krzysztof Kozlowski
2024-01-17  7:39                     ` Jingbao Qiu
2024-01-17 12:59     ` Conor Dooley

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