From: Jingbao Qiu <qiujingbao.dlmu@gmail.com>
To: alexandre.belloni@bootlin.com, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu
Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, dlan@gentoo.org,
inochiama@outlook.com, Jingbao Qiu <qiujingbao.dlmu@gmail.com>
Subject: [PATCH v8 0/2] riscv: rtc: sophgo: add rtc support for CV1800
Date: Sun, 4 Feb 2024 12:41:41 +0800 [thread overview]
Message-ID: <20240204044143.415915-1-qiujingbao.dlmu@gmail.com> (raw)
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 v7:
- pass checkpatch.pl --strict
- using u32 replace uint32
- using devm_kzalloc(*) replace
devm_kzalloc(sizeof())
- sort header files alphabetically
- delete unnecessary header files
- fix wrap error
- drop dependent description
- using hardware automatic calibration replace
software calibration. see documentation 197 page
v7: https://lore.kernel.org/all/20240122080500.2621-1-qiujingbao.dlmu@gmail.com/
documentation: https://github.com/milkv-duo/duo-files/blob/main/duo/datasheet/CV1800B-CV1801B-Preliminary-Datasheet-full-en.pdf
Changes since v6:
- completely delete POR dt node
- remove syscon tag
- use devm_regmap_init_mmio() replace
syscon_node_to_regmap
v6: https://lore.kernel.org/all/20240115160600.5444-1-qiujingbao.dlmu@gmail.com/
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 (2):
dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC
rtc: sophgo: add rtc support for Sophgo CV1800 SoC
.../bindings/rtc/sophgo,cv1800-rtc.yaml | 53 ++++
drivers/rtc/Kconfig | 10 +
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-cv1800.c | 244 ++++++++++++++++++
4 files changed, 308 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
create mode 100644 drivers/rtc/rtc-cv1800.c
base-commit: 14688f1a91e1f37bc6bf50ff5241e857f24338e0
--
2.25.1
next reply other threads:[~2024-02-04 4:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-04 4:41 Jingbao Qiu [this message]
2024-02-04 4:41 ` [PATCH v8 1/2] dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC Jingbao Qiu
2024-02-04 4:41 ` [PATCH v8 2/2] rtc: sophgo: add rtc support for Sophgo CV1800 SoC Jingbao Qiu
2024-03-05 10:25 ` Jingbao Qiu
2024-04-17 21:23 ` Alexandre Belloni
2024-04-24 7:35 ` Jingbao Qiu
2024-05-01 2:19 ` Inochi Amaoto
2024-05-01 5:03 ` Jingbao Qiu
2024-05-01 7:43 ` Inochi Amaoto
2024-05-01 9:14 ` Jingbao Qiu
2024-05-01 11:20 ` Alexandre Belloni
2024-05-02 7:39 ` Jingbao Qiu
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