[PATCH] i2c: i801: Fix missing Kconfig dependency

[PATCH] i2c: i801: Fix missing Kconfig dependency

[Heiner Kallweit]

The original change adds usage of i2c_root_adapter(), which is
implemented in i2c-mux.c. So we need I2C_MUX to avoid a linker error.

Fixes: 71b494e043d2 ("i2c: i801: Call i2c_register_spd for muxed child segments")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404042206.MjAQC32x-lkp@intel.com/
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/i2c/busses/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 97989c914..201c5fc17 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -111,6 +111,7 @@ config I2C_I801
 	select P2SB if X86
 	select CHECK_SIGNATURE if X86 && DMI
 	select I2C_SMBUS
+	select I2C_MUX
 	help
 	  If you say yes to this option, support will be included for the Intel
 	  801 family of mainboard I2C interfaces.  Specifically, the following
-- 
2.44.0

Re: [PATCH] i2c: i801: Fix missing Kconfig dependency

[Heiner Kallweit]

On 04.04.2024 17:21, Heiner Kallweit wrote:
> The original change adds usage of i2c_root_adapter(), which is
> implemented in i2c-mux.c. So we need I2C_MUX to avoid a linker error.
> 
> Fixes: 71b494e043d2 ("i2c: i801: Call i2c_register_spd for muxed child segments")
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202404042206.MjAQC32x-lkp@intel.com/
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
> ---
>  drivers/i2c/busses/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index 97989c914..201c5fc17 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -111,6 +111,7 @@ config I2C_I801
>  	select P2SB if X86
>  	select CHECK_SIGNATURE if X86 && DMI
>  	select I2C_SMBUS
> +	select I2C_MUX
>  	help
>  	  If you say yes to this option, support will be included for the Intel
>  	  801 family of mainboard I2C interfaces.  Specifically, the following

Please disregard, I'll send an improved version shortly.
Issue with this version is that I2C_MUX may be enabled even if I2C_MUX_GPIO is
unset and the mux part is disabled.