Re: [PATCH V3 0/7] rtc: ls2x: Add support for the Loongson-2K/LS7A RTC

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On 13/04/2023 15:57:32+0800, Binbin Zhou 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.
> 
> I have tested on Loongson-3A5000LA+LS7A1000/LS7A2000, Loongson-2K1000LA
> and Loongson-2K0500.
> 
> BTW:
> As LS1X does not support DT, we will merge LS2X and LS1X after keguang
> has completed DT support for LS1X.

Stop waiting and simply add it.

> 
> -------
> Changes since v2:
> - Rebase on the top of rtc-next.
> patch(1/7):
>  - The new patch.
> 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;
>  - remove()->remove_new().
> 
> Changes since v1:
> 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 (7):
>   dt-bindings: rtc: Subdivision of LS2X RTC compatible
>   rtc: Add support for the Loongson-2K/LS7A RTC
>   LoongArch: Enable LS2X RTC in loongson3_defconfig
>   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  |   7 +-
>  arch/loongarch/configs/loongson3_defconfig    |   1 +
>  .../boot/dts/loongson/loongson64-2k1000.dtsi  |   7 +
>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi     |   7 +
>  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                        | 345 ++++++++++++++++++
>  9 files changed, 379 insertions(+), 2 deletions(-)
>  create mode 100644 drivers/rtc/rtc-ls2x.c
> 
> -- 
> 2.39.1
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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