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[V5,0/5] Add rtc driver for the Loongson family chips

Message ID cover.1685693501.git.zhoubinbin@loongson.cn
Headers show
Series Add rtc driver for the Loongson family chips | expand

Message

Binbin Zhou June 2, 2023, 9:50 a.m. UTC
Hi all:

The initial DT-base ls2x rtc driver was written by Wang Xuerui, He has
released five versions of patchset before, and all related mail records
are shown below if you are interested:

https://lore.kernel.org/all/?q=ls2x-rtc

In this series of patches, based on the code above, I have added the
following support:

1. Add ACPI-related support, as Loongson-3A5000 + LS7A is now ACPI-base
   by default under LoongArch architecture;
2. Add rtc alarm/walarm related functions;
3. Merge LS1X rtc and LS2X rtc into a unified rtc-loongson driver.

I have tested on Loongson-3A5000LA+LS7A1000/LS7A2000, Loongson-2K1000LA,
Loongson-2K0500 and Loongson-2K2000(ACPI/DT).

Thanks to everyone for reviewing and testing the code.

-------
v5:
patch(1/5)
  - The reason why ls2x can be removed directly is explained in the
    commit message;
  - Use fallback compatible;
    Thanks to all who participated in the fallback compatible discussion.
patch(3/5)
  - Since ls1b and ls1c have different register definitions, we'd better
    distinguish them with different
    configurations(ls1b_rtc_config/ls1c_rtc_config);
  - Due to the use of fallback compatible, the redundant compatible is
    removed. We can see the full list of supported chips in dt-binding..

v4:
https://lore.kernel.org/linux-rtc/cover.1684983279.git.zhoubinbin@loongson.cn/

- Rebase on the top of rtc-next;
- Drop defconfig-related patches;
patch(1/5)
  - New patch, Loongson RTC bindings have been rewritten and we have
    dropped the wildcard (ls2x) in compatible.
    Thanks to Krzysztof for your comments;
patch(2/5)
  - New patch, drop the ls1x rtc driver;
patch(3/5)
  - Clear RTC_FEATURE_UPDATE_INTERRUPT bit, for the rtc does not support
    UIE;
  - Add LS2K2000 support(DT/ACPI);
  - Merge ls1x support and name the driver rtc-loongson;
    Thanks to Jiaxun for his comments and Keguang for his assistance in
testing.

v3:
https://lore.kernel.org/linux-rtc/cover.1681370153.git.zhoubinbin@loongson.cn/

patch(2/7):
 - Check patchset with "checkpatch.pl --strict";
 - Drop static inline functions which are used only once, such as
   ls2x_rtc_regs_to_time;
 - Remove the suruct ls2x_rtc_regs and regmap_bulk_xxx() is used to read
   and write rtc registers;
 - Clear the RTC wakeup interrupt manually;
 - Enable the RTC in set_time() and check in read_time();
 - device_get_match_data() is used to get ls2x_pm_offset, for LS2k1000
   has the different value;
 - Remove some inexact CONFIG_ACPI.

v2:
1. Rebased on top of latest loongarch-next;
2. Add interrupt descriptions to the ls2k and ls7a DTS files to avoid
errors when the driver gets the IRQ number, Thanks to Qing Zhang for
testing;
3. Remove some inexact CONFIG_ACPI.

Thanks.

Binbin Zhou (5):
  dt-bindings: rtc: Remove the LS2X from the trivial RTCs
  rtc: Remove the Loongson-1 RTC driver
  rtc: Add rtc driver for the Loongson family chips
  MIPS: Loongson64: DTS: Add RTC support to LS7A PCH
  MIPS: Loongson64: DTS: Add RTC support to Loongson-2K1000

 .../devicetree/bindings/rtc/loongson,rtc.yaml |  57 +++
 .../devicetree/bindings/rtc/trivial-rtc.yaml  |   2 -
 .../boot/dts/loongson/loongson64-2k1000.dtsi  |   7 +
 arch/mips/boot/dts/loongson/ls7a-pch.dtsi     |   7 +
 drivers/rtc/Kconfig                           |  23 +-
 drivers/rtc/Makefile                          |   2 +-
 drivers/rtc/rtc-loongson.c                    | 397 ++++++++++++++++++
 drivers/rtc/rtc-ls1x.c                        | 192 ---------
 8 files changed, 482 insertions(+), 205 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/loongson,rtc.yaml
 create mode 100644 drivers/rtc/rtc-loongson.c
 delete mode 100644 drivers/rtc/rtc-ls1x.c

Comments

Binbin Zhou June 25, 2023, 2:35 a.m. UTC | #1
Hi Alexandre:

Gentle ping.
The dt-binding part of the patchset looks good now, do you have any
more comments on the driver part?

Thanks.
Binbin







On Fri, Jun 2, 2023 at 5:51 PM Binbin Zhou <zhoubinbin@loongson.cn> wrote:
>
> Hi all:
>
> The initial DT-base ls2x rtc driver was written by Wang Xuerui, He has
> released five versions of patchset before, and all related mail records
> are shown below if you are interested:
>
> https://lore.kernel.org/all/?q=ls2x-rtc
>
> In this series of patches, based on the code above, I have added the
> following support:
>
> 1. Add ACPI-related support, as Loongson-3A5000 + LS7A is now ACPI-base
>    by default under LoongArch architecture;
> 2. Add rtc alarm/walarm related functions;
> 3. Merge LS1X rtc and LS2X rtc into a unified rtc-loongson driver.
>
> I have tested on Loongson-3A5000LA+LS7A1000/LS7A2000, Loongson-2K1000LA,
> Loongson-2K0500 and Loongson-2K2000(ACPI/DT).
>
> Thanks to everyone for reviewing and testing the code.
>
> -------
> v5:
> patch(1/5)
>   - The reason why ls2x can be removed directly is explained in the
>     commit message;
>   - Use fallback compatible;
>     Thanks to all who participated in the fallback compatible discussion.
> patch(3/5)
>   - Since ls1b and ls1c have different register definitions, we'd better
>     distinguish them with different
>     configurations(ls1b_rtc_config/ls1c_rtc_config);
>   - Due to the use of fallback compatible, the redundant compatible is
>     removed. We can see the full list of supported chips in dt-binding..
>
> v4:
> https://lore.kernel.org/linux-rtc/cover.1684983279.git.zhoubinbin@loongson.cn/
>
> - Rebase on the top of rtc-next;
> - Drop defconfig-related patches;
> patch(1/5)
>   - New patch, Loongson RTC bindings have been rewritten and we have
>     dropped the wildcard (ls2x) in compatible.
>     Thanks to Krzysztof for your comments;
> patch(2/5)
>   - New patch, drop the ls1x rtc driver;
> patch(3/5)
>   - Clear RTC_FEATURE_UPDATE_INTERRUPT bit, for the rtc does not support
>     UIE;
>   - Add LS2K2000 support(DT/ACPI);
>   - Merge ls1x support and name the driver rtc-loongson;
>     Thanks to Jiaxun for his comments and Keguang for his assistance in
> testing.
>
> v3:
> https://lore.kernel.org/linux-rtc/cover.1681370153.git.zhoubinbin@loongson.cn/
>
> patch(2/7):
>  - Check patchset with "checkpatch.pl --strict";
>  - Drop static inline functions which are used only once, such as
>    ls2x_rtc_regs_to_time;
>  - Remove the suruct ls2x_rtc_regs and regmap_bulk_xxx() is used to read
>    and write rtc registers;
>  - Clear the RTC wakeup interrupt manually;
>  - Enable the RTC in set_time() and check in read_time();
>  - device_get_match_data() is used to get ls2x_pm_offset, for LS2k1000
>    has the different value;
>  - Remove some inexact CONFIG_ACPI.
>
> v2:
> 1. Rebased on top of latest loongarch-next;
> 2. Add interrupt descriptions to the ls2k and ls7a DTS files to avoid
> errors when the driver gets the IRQ number, Thanks to Qing Zhang for
> testing;
> 3. Remove some inexact CONFIG_ACPI.
>
> Thanks.
>
> Binbin Zhou (5):
>   dt-bindings: rtc: Remove the LS2X from the trivial RTCs
>   rtc: Remove the Loongson-1 RTC driver
>   rtc: Add rtc driver for the Loongson family chips
>   MIPS: Loongson64: DTS: Add RTC support to LS7A PCH
>   MIPS: Loongson64: DTS: Add RTC support to Loongson-2K1000
>
>  .../devicetree/bindings/rtc/loongson,rtc.yaml |  57 +++
>  .../devicetree/bindings/rtc/trivial-rtc.yaml  |   2 -
>  .../boot/dts/loongson/loongson64-2k1000.dtsi  |   7 +
>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi     |   7 +
>  drivers/rtc/Kconfig                           |  23 +-
>  drivers/rtc/Makefile                          |   2 +-
>  drivers/rtc/rtc-loongson.c                    | 397 ++++++++++++++++++
>  drivers/rtc/rtc-ls1x.c                        | 192 ---------
>  8 files changed, 482 insertions(+), 205 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/rtc/loongson,rtc.yaml
>  create mode 100644 drivers/rtc/rtc-loongson.c
>  delete mode 100644 drivers/rtc/rtc-ls1x.c
>
> --
> 2.39.1
>
>
Alexandre Belloni June 25, 2023, 11:20 p.m. UTC | #2
On Fri, 02 Jun 2023 17:50:19 +0800, Binbin Zhou wrote:
> The initial DT-base ls2x rtc driver was written by Wang Xuerui, He has
> released five versions of patchset before, and all related mail records
> are shown below if you are interested:
> 
> https://lore.kernel.org/all/?q=ls2x-rtc
> 
> In this series of patches, based on the code above, I have added the
> following support:
> 
> [...]

Applied, thanks!

[1/5] dt-bindings: rtc: Remove the LS2X from the trivial RTCs
      commit: 487ef32caebe010f0ff0f17267230ebaf2177e67
[2/5] rtc: Remove the Loongson-1 RTC driver
      commit: 9fb23090658adbd7f8f44bf5c38aa3fc4b1699bd
[3/5] rtc: Add rtc driver for the Loongson family chips
      commit: 1b733a9ebc3d8011ca66ec6ff17f55a440358794

Best regards,