On 10/02/2023 18:03:07+0800, Binbin Zhou wrote: > On Tue, Jan 31, 2023 at 8:59 PM Binbin Zhou <zhoubb.aaron@xxxxxxxxx> wrote: > > > > Hi Kelvin: > > > > Excuse me. > > I am submitting the Loongson-2K/LS7A RTC driver and Alexandre would > > like me to merge the ls1x rtc driver in parallel. > > Unfortunately I found out that the loongson-1 does not yet support DT > > and would like to ask if you have any plans to support DT? > > > > I think this is the prerequisite for the merge. > > > > Regards. > > Binbin > > > > > > Hi Alexandre: > > Unfortunately there has been no reply from Keguang for the past week > or so. Can we try rtc-ls2x and rtc-ls1x to coexist until Loongson-1 > supports DT? > Later on, if Keguang or someone else familiar with Loongson-1 adds DT > support, I would be happy to continue trying to merge the two drivers. > My point is exactly that if nobody in Loongson wants to maintain rtc-ls1x, we may just drop it. This also probably tells a lot about how rtc-ls2x is going to be maintained once upstreamed... > Regards. > Binbin > > > > > > > On Tue, Jan 24, 2023 at 7:24 AM Alexandre Belloni > > <alexandre.belloni@xxxxxxxxxxx> wrote: > > > > > > On 09/01/2023 09:35:10+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: > > > > There have been discussions about merging the rtc drivers of ls1x and > > > > ls2x, but the following reasons made the merger difficult to achieve: > > > > > > > > 1. ls1x does not support ACPI, for it is only on MIPS-based system; > > > > > > This is not a good justification, you have to support both in your > > > driver anyway, as shown by your CONFIG_ACPI ifdefery. > > > > > > > 2. ls1x does not support alarm function. > > > > > > It is just a matter of clearing a single bit, this is not difficult at > > > all. > > > > > > > > > > > Thanks. > > > > > > > > ------- > > > > 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. > > > > > > > > Binbin Zhou (4): > > > > 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: Loongson64: DTS: Add RTC support to Loongson-2K > > > > > > > > WANG Xuerui (3): > > > > dt-bindings: rtc: Add Loongson LS2X RTC support > > > > MIPS: Loongson: Enable LS2X RTC in loongson3_defconfig > > > > 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 | 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 | 379 ++++++++++++++++++ > > > > 9 files changed, 410 insertions(+) > > > > create mode 100644 drivers/rtc/rtc-ls2x.c > > > > > > > > -- > > > > 2.31.1 > > > > > > > > > > -- > > > Alexandre Belloni, co-owner and COO, Bootlin > > > Embedded Linux and Kernel engineering > > > https://bootlin.com > > > -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
