linux-kernel - Re: [PATCH] arm64: defconfig: Enable Qualcomm SC8280XP providers

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Date:   Fri, 8 Jul 2022 14:04:13 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Vinod Koul <vkoul@...nel.org>,
        Biju Das <biju.das.jz@...renesas.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>,
        manivannan.sadhasivam@...aro.org
Subject: Re: [PATCH] arm64: defconfig: Enable Qualcomm SC8280XP providers

On Thu 07 Jul 10:41 PDT 2022, Dmitry Baryshkov wrote:

> On Thu, 7 Jul 2022 at 19:07, Bjorn Andersson <bjorn.andersson@...aro.org> wrote:
> >
> > The Qualcomm SC8280XP need the global clock controller, interconnect
> > provider and TLMM pinctrl in order to boot. Enable these as builtin, as
> > they are needed in order to provide e.g. UART.
> >
> > Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> > ---
> >  arch/arm64/configs/defconfig | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> > index d2615b37d857..8e44f6a2172c 100644
> > --- a/arch/arm64/configs/defconfig
> > +++ b/arch/arm64/configs/defconfig
> > @@ -541,6 +541,7 @@ CONFIG_PINCTRL_QDF2XXX=y
> >  CONFIG_PINCTRL_QCOM_SPMI_PMIC=y
> >  CONFIG_PINCTRL_SC7180=y
> >  CONFIG_PINCTRL_SC7280=y
> > +CONFIG_PINCTRL_SC8280XP=y
> >  CONFIG_PINCTRL_SDM845=y
> >  CONFIG_PINCTRL_SM8150=y
> >  CONFIG_PINCTRL_SM8250=y
> > @@ -1056,6 +1057,7 @@ CONFIG_MSM_GCC_8998=y
> >  CONFIG_QCS_GCC_404=y
> >  CONFIG_SC_GCC_7180=y
> >  CONFIG_SC_GCC_7280=y
> > +CONFIG_SC_GCC_8280XP=y
> >  CONFIG_SDM_CAMCC_845=m
> >  CONFIG_SDM_GPUCC_845=y
> >  CONFIG_SDM_VIDEOCC_845=y
> > @@ -1266,6 +1268,7 @@ CONFIG_INTERCONNECT_QCOM_OSM_L3=m
> >  CONFIG_INTERCONNECT_QCOM_QCS404=m
> >  CONFIG_INTERCONNECT_QCOM_SC7180=m
> >  CONFIG_INTERCONNECT_QCOM_SC7280=y
> > +CONFIG_INTERCONNECT_QCOM_SC8280XP=y
> 
> = m? I see other SoCs build interconnect drivers as modules (well,
> except sdm845).
> 

I have interconnects specified for the UART and keeping the interconnect
provider as module means that the serial  until after late_initcall,
which in my testing implies that systemd doesn't find a proper console.

Perhaps this is something I'm doing incorrectly?

Regards,
Bjorn

> >  CONFIG_INTERCONNECT_QCOM_SDM845=y
> >  CONFIG_INTERCONNECT_QCOM_SM8150=m
> >  CONFIG_INTERCONNECT_QCOM_SM8250=m
> > --
> > 2.35.1
> >
> 
> 
> -- 
> With best wishes
> Dmitry