On Fri, 6 Sept 2024 at 09:15, Jingyi Wang <quic_jingyw@xxxxxxxxxxx> wrote: > > Hi Dmitry, > > On 9/6/2024 11:18 AM, Dmitry Baryshkov wrote: > > On Thu, Sep 05, 2024 at 12:54:35PM GMT, Jingyi Wang wrote: > >> > >> > >> On 9/4/2024 5:39 PM, Krzysztof Kozlowski wrote: > >>> On 04/09/2024 10:33, Jingyi Wang wrote: > >>>> Enable clock controller, interrconnect and pinctrl for QCS8300. > >>> > >>> NXP QCS8300? What is QCS8300? Which products use it? That's a defconfig > >>> for entire kernel, not your Qualcomm one. > >>> > >> Will describe it in more detail. > >>>> It needs to be built-in for UART to provide a console. > >>>> > >>>> Signed-off-by: Jingyi Wang <quic_jingyw@xxxxxxxxxxx> > >>>> --- > >>>> arch/arm64/configs/defconfig | 3 +++ > >>>> 1 file changed, 3 insertions(+) > >>>> > >>>> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig > >>>> index 81ca46e3ab4b..a9ba6b25a0ed 100644 > >>>> --- a/arch/arm64/configs/defconfig > >>>> +++ b/arch/arm64/configs/defconfig > >>>> @@ -606,6 +606,7 @@ CONFIG_PINCTRL_MSM8996=y > >>>> CONFIG_PINCTRL_MSM8998=y > >>>> CONFIG_PINCTRL_QCM2290=y > >>>> CONFIG_PINCTRL_QCS404=y > >>>> +CONFIG_PINCTRL_QCS8300=y > >>>> CONFIG_PINCTRL_QDF2XXX=y > >>>> CONFIG_PINCTRL_QDU1000=y > >>>> CONFIG_PINCTRL_SA8775P=y > >>>> @@ -1317,6 +1318,7 @@ CONFIG_MSM_MMCC_8998=m > >>>> CONFIG_QCM_GCC_2290=y > >>>> CONFIG_QCM_DISPCC_2290=m > >>>> CONFIG_QCS_GCC_404=y > >>>> +CONFIG_QCS_GCC_8300=y > >>>> CONFIG_QDU_GCC_1000=y > >>>> CONFIG_SC_CAMCC_8280XP=m > >>>> CONFIG_SC_DISPCC_7280=m > >>>> @@ -1618,6 +1620,7 @@ CONFIG_INTERCONNECT_QCOM_MSM8996=y > >>>> CONFIG_INTERCONNECT_QCOM_OSM_L3=m > >>>> CONFIG_INTERCONNECT_QCOM_QCM2290=y > >>>> CONFIG_INTERCONNECT_QCOM_QCS404=m > >>>> +CONFIG_INTERCONNECT_QCOM_QCS8300=y > >>> > >>> Why this cannot be a module? > >>> > >>> > >> I think the commit-msg "It needs to be built-in for UART to provide a console." can > >> explain that, could you please help to share your insights on that? > > > > Unless loading these modules from initramfs doesn't work, please use =m. > > The drivers that are enabled here are going to be enabled for everybody > > using arm64 defconfig, taking up memory on their platforms, etc. > > > We had previous discussion here about why these drivers needs to be built-in to support > debug-uart: > https://lore.kernel.org/linux-arm-msm/c11fd3c2-770a-4d40-8cf3-d8bc81f7c480@xxxxxxxxxx/ > I will mention more details in the commit message of this patch. Yes, please. Explicitly mention that this is required to get UART to work. -- With best wishes Dmitry
