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From: Chen-Yu Tsai <wenst@chromium.org>
Date: Tue, 9 Jan 2024 17:34:44 +0800
Message-ID: <CAGXv+5FhYY+qyyT8wxY5DggvWPibfM2ypHVKQbsJZ30VkZDAkQ@mail.gmail.com>
Subject: Re: [RFC 8/9] PCI/pwrseq: add a pwrseq driver for QCA6390
To: Kalle Valo <kvalo@kernel.org>
Cc: Jeff Johnson <quic_jjohnson@quicinc.com>, Bartosz Golaszewski <brgl@bgdev.pl>, 
	"David S . Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, 
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh+dt@kernel.org>, 
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	Huacai Chen <chenhuacai@kernel.org>, Alex Elder <elder@linaro.org>, 
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	Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-wireless@vger.kernel.org, 
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	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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On Tue, Jan 9, 2024 at 5:18=E2=80=AFPM Kalle Valo <kvalo@kernel.org> wrote:
>
> Jeff Johnson <quic_jjohnson@quicinc.com> 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 ath11=
k
> > which would then select PCIE_PWRSEQ and PCIE_PWRSEQ_QCA6390
>
> Or is it possible to provide an optional dependency in Kconfig (I guess

imply PCIE_PWRSEQ
imply PCIE_PWRSEQ_QCA6390
?

> not)? Or what about mentioning about PCIE_PWRSEQ_QCA6390 in ATH11K_PCI
> help text?