[PATCH v8 0/4] wifi: ath12k: ACPI support

[Jeff Johnson]

On 4/18/2024 9:20 AM, Kalle Valo wrote:
> From: Kalle Valo <quic_kvalo at quicinc.com>
> 
> Through reading ACPI tables, implement Time-Average-SAR(TAS), BIOS SAR,
> configuration of CCA threshold and band edge channel power functionalities.
> This is enabled only on WCN7850.
> 
> TODO:
> 
> * test with ACPI support in hardware (I don't have such hardware), especially
>   suspend and hibernation
> 
> v8:
> 
> * rebase to ath-202404181528
> * rewrite commit messages
> * cleanup and improvements all over to match the ath12k style, including
>   error handling, naming and so on
> * locate new place to call ath12k_acpi_[start|stop]()
> * move wmi functions up in wmi.c file
> * consolidate WMI functions using WMI_PDEV_SET_BIOS_INTERFACE_CMDID into ath12k_wmi_set_bios_cmd()
> * ath12k_acpi_stop(): don't call acpi_remove_notify_handler() if we never installed the handler
> 
> v7: https://patchwork.kernel.org/project/linux-wireless/cover/20231013114434.81648-1-quic_lingbok@quicinc.com/
> 
> * adjust the length of line
> * add cpu_to_le32()
> 
> v6:
> 
> * remove code that is not called
> 
> v5:
> 
> * rebase to the latest tag
> 
> v4:
> 
> * revise commit log using imperative voice
> * delete guid_is_null()
> 
> v3:
> 
> * remove unnecessary cpu_to_le32()
> * adjust the order of the macros
> * apply jeff's advice
> 
> v2:
> 
> * put <linux/acpi.h> in the include guard
> 
> Lingbo Kong (4):
>   wifi: ath12k: ACPI TAS support
>   wifi: ath12k: ACPI SAR support
>   wifi: ath12k: ACPI CCA threshold support
>   wifi: ath12k: ACPI band edge channel power support
> 
>  drivers/net/wireless/ath/ath12k/Makefile |   1 +
>  drivers/net/wireless/ath/ath12k/acpi.c   | 394 +++++++++++++++++++++++
>  drivers/net/wireless/ath/ath12k/acpi.h   |  76 +++++
>  drivers/net/wireless/ath/ath12k/core.c   |   7 +
>  drivers/net/wireless/ath/ath12k/core.h   |  18 ++
>  drivers/net/wireless/ath/ath12k/hw.c     |  10 +
>  drivers/net/wireless/ath/ath12k/hw.h     |   3 +
>  drivers/net/wireless/ath/ath12k/wmi.c    | 143 ++++++++
>  drivers/net/wireless/ath/ath12k/wmi.h    |  41 +++
>  9 files changed, 693 insertions(+)
>  create mode 100644 drivers/net/wireless/ath/ath12k/acpi.c
>  create mode 100644 drivers/net/wireless/ath/ath12k/acpi.h
> 
> 
> base-commit: c416602943dd36fbd13af7496430723935c867a3

I can verify this doesn't crash my system, but apparently my ACPI doesn't have
the underlying settings, so cannot verify actual functionality

Apr 18 15:13:59 qca-HP-ZBook-14-G2 kernel: ath12k_pci 0000:03:00.0: acpi_evaluate_dsm() failed
Apr 18 15:13:59 qca-HP-ZBook-14-G2 kernel: ath12k_pci 0000:03:00.0: failed to get ACPI DSM data: -2
Apr 18 15:13:59 qca-HP-ZBook-14-G2 kernel: ath12k_pci 0000:03:00.0: acpi failed: -2

/jeff