RE: [PATCH V2 2/9] ARM: imx: Select MXC_CLK for ARCH_MXC

[Aisheng Dong]

> From: Anson Huang <anson.huang@xxxxxxx>
> Sent: Wednesday, June 17, 2020 8:36 PM
> 
> > Subject: RE: [PATCH V2 2/9] ARM: imx: Select MXC_CLK for ARCH_MXC
> >
> > > From: Anson Huang <Anson.Huang@xxxxxxx>
> > > Sent: Tuesday, June 9, 2020 3:32 PM
> > >
> > > i.MX common clock drivers may support module build, so it is NOT
> > > selected by default, for ARCH_MXC ARMv7 platforms, need to select it
> > > manually to make build pass.
> > >
> > > Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
> >
> > Can't the original def_xxx work?
> >
> > config MXC_CLK
> >         tristate
> >         def_tristate ARCH_MXC
> 
> Such change will make MXC_CLK=y even all i.MX8 SoCs clock drivers are selected
> as module, so it does NOT meet the requirement of module support. Below is
> from .config when all
> i.MX8 SoCs clock drivers are configured to module.
> 
>  CONFIG_MXC_CLK=y
>  CONFIG_MXC_CLK_SCU=m
>  CONFIG_CLK_IMX8MM=m
>  CONFIG_CLK_IMX8MN=m
>  CONFIG_CLK_IMX8MP=m
>  CONFIG_CLK_IMX8MQ=m
>  CONFIG_CLK_IMX8QXP=m
> 

It works at my side.
Below is my changes based on your patchset:
$ git diff
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 47b10d20f411..e7d7b90e2cf8 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -4,7 +4,6 @@ menuconfig ARCH_MXC
        depends on ARCH_MULTI_V4_V5 || ARCH_MULTI_V6_V7 || ARM_SINGLE_ARMV7M
        select ARCH_SUPPORTS_BIG_ENDIAN
        select CLKSRC_IMX_GPT
-       select MXC_CLK
        select GENERIC_IRQ_CHIP
        select GPIOLIB
        select PINCTRL
diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
index 26cedbfe386c..f7b3e3a2cb9f 100644
--- a/drivers/clk/imx/Kconfig
+++ b/drivers/clk/imx/Kconfig
@@ -3,6 +3,7 @@
 config MXC_CLK
        tristate "IMX clock"
        depends on ARCH_MXC
+       def_tristate ARCH_MXC
 
 config MXC_CLK_SCU
        tristate "IMX SCU clock"

Regards
Aisheng

> Anson