[0/7] rtc: ls2x: Add support for the Loongson-2K/LS7A RTC

Message

Binbin Zhou Sept. 3, 2022, 9:34 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-3 + LS7A is now ACPI-base
   by default on LoonArch;
2. Add rtc alarm/walarm related functions.

Unfortunately, I have only tested the Loongson-3A4000+LS7A1000/LS7A2000
under LoongArch architecture.

NOTE:
The related functions of rtc alarm/walarm depend on ACPI registers, so rtc
alarm may not be available on the DT-base environment. Such as Loongson-2k/3
under MIPS.

Thanks.

Binbin Zhou (2):
  rtc: ls2x: Add support for the Loongson-2K/LS7A RTC
  LoongArch: Enable LS2X RTC in loongson3_defconfig

WANG Xuerui (5):
  dt-bindings: rtc: Add bindings for LS2X RTC
  MIPS: Loongson64: DTS: Add RTC support to LS7A
  MIPS: Loongson: Enable LS2X RTC in loongson3_defconfig
  MIPS: Loongson64: DTS: Add RTC support to Loongson-2K
  MIPS: Loongson: Enable LS2X RTC in loongson2k_defconfig

 .../devicetree/bindings/rtc/trivial-rtc.yaml  |   2 +
 arch/loongarch/configs/loongson3_defconfig    |   1 +
 .../boot/dts/loongson/loongson64-2k1000.dtsi  |   5 +
 arch/mips/boot/dts/loongson/ls7a-pch.dtsi     |   5 +
 arch/mips/configs/loongson2k_defconfig        |   1 +
 arch/mips/configs/loongson3_defconfig         |   1 +
 drivers/rtc/Kconfig                           |  11 +
 drivers/rtc/Makefile                          |   1 +
 drivers/rtc/rtc-ls2x.c                        | 366 ++++++++++++++++++
 9 files changed, 393 insertions(+)
 create mode 100644 drivers/rtc/rtc-ls2x.c

Comments

Huacai Chen Sept. 3, 2022, 2:15 p.m. UTC | #1

Hi, Binbin,

On Sat, Sep 3, 2022 at 5:35 PM Binbin Zhou <[e-mail]> 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-3 + LS7A is now ACPI-base
>    by default on LoonArch;
> 2. Add rtc alarm/walarm related functions.
>
> Unfortunately, I have only tested the Loongson-3A4000+LS7A1000/LS7A2000
> under LoongArch architecture.
I think Loongson-3A4000 should be Loongson-3A5000 here. And I think
Qing Zhang can help us to test on Loongson-2K platform.

Huacai
>
> NOTE:
> The related functions of rtc alarm/walarm depend on ACPI registers, so rtc
> alarm may not be available on the DT-base environment. Such as Loongson-2k/3
> under MIPS.
>
> Thanks.
>
> Binbin Zhou (2):
>   rtc: ls2x: Add support for the Loongson-2K/LS7A RTC
>   LoongArch: Enable LS2X RTC in loongson3_defconfig
>
> WANG Xuerui (5):
>   dt-bindings: rtc: Add bindings for LS2X RTC
>   MIPS: Loongson64: DTS: Add RTC support to LS7A
>   MIPS: Loongson: Enable LS2X RTC in loongson3_defconfig
>   MIPS: Loongson64: DTS: Add RTC support to Loongson-2K
>   MIPS: Loongson: Enable LS2X RTC in loongson2k_defconfig
>
>  .../devicetree/bindings/rtc/trivial-rtc.yaml  |   2 +
>  arch/loongarch/configs/loongson3_defconfig    |   1 +
>  .../boot/dts/loongson/loongson64-2k1000.dtsi  |   5 +
>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi     |   5 +
>  arch/mips/configs/loongson2k_defconfig        |   1 +
>  arch/mips/configs/loongson3_defconfig         |   1 +
>  drivers/rtc/Kconfig                           |  11 +
>  drivers/rtc/Makefile                          |   1 +
>  drivers/rtc/rtc-ls2x.c                        | 366 ++++++++++++++++++
>  9 files changed, 393 insertions(+)
>  create mode 100644 drivers/rtc/rtc-ls2x.c
>
> --
> 2.31.1
>
>