Re: [RFC 8/9] PCI/pwrseq: add a pwrseq driver for QCA6390

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Jeff Johnson <quic_jjohnson@xxxxxxxxxxx> writes:

> On 1/4/2024 5:01 AM, Bartosz Golaszewski wrote:
>> diff --git a/drivers/pci/pcie/pwrseq/Kconfig b/drivers/pci/pcie/pwrseq/Kconfig
>> index 010e31f432c9..f9fe555b8506 100644
>> --- a/drivers/pci/pcie/pwrseq/Kconfig
>> +++ b/drivers/pci/pcie/pwrseq/Kconfig
>> @@ -6,3 +6,14 @@ menuconfig PCIE_PWRSEQ
>>  	help
>>  	  Say yes here to enable support for PCIe power sequencing
>>  	  drivers.
>> +
>> +if PCIE_PWRSEQ
>> +
>> +config PCIE_PWRSEQ_QCA6390
>> +	tristate "PCIe Power Sequencing driver for QCA6390"
>> +	depends on ARCH_QCOM || COMPILE_TEST
>> +	help
>> +	  Enable support for the PCIe power sequencing driver for the
>> +	  ath11k module of the QCA6390 WLAN/BT chip.
>> +
>> +endif
>
> As I mentioned in the 5/9 patch I'm concerned that the current
> definition of PCIE_PWRSEQ and PCIE_PWRSEQ_QCA6390 will effectively hide
> the fact that QCA6390 may need additional configuration since the menu
> item will only show up if you have already enabled PCIE_PWRSEQ.
> Yes I see that these are set in the defconfig in 9/9 but I'm concerned
> about the more generic case.
>
> I'm wondering if there should be a separate config QCA6390 within ath11k
> which would then select PCIE_PWRSEQ and PCIE_PWRSEQ_QCA6390

Or is it possible to provide an optional dependency in Kconfig (I guess
not)? Or what about mentioning about PCIE_PWRSEQ_QCA6390 in ATH11K_PCI
help text?

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