2022-02-01 14:53:45

by Randy Dunlap

[permalink] [raw]
Subject: [PATCH v2] usb: typec: mux: select not-visible INTEL_SCU_IPC

Use "select INTEL_SCU_IPC" instead of depending on it since it is
not a visible Kconfig symbol and it may not otherwise be set/enabled.

Fixes: b62851491a55 ("usb: typec: mux: Convert the Intel PMC Mux driver to use new SCU IPC API")
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Heikki Krogerus <[email protected]>
Cc: Mika Westerberg <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: [email protected]
Cc: Greg Kroah-Hartman <[email protected]>
Cc: kernel test robot <[email protected]>
---
v2: add dependency on X86_PLATFORM_DEVICES to fix build error that was
Reported_by: kernel test robot <[email protected]>

drivers/usb/typec/mux/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-next-20220128.orig/drivers/usb/typec/mux/Kconfig
+++ linux-next-20220128/drivers/usb/typec/mux/Kconfig
@@ -11,8 +11,8 @@ config TYPEC_MUX_PI3USB30532

config TYPEC_MUX_INTEL_PMC
tristate "Intel PMC mux control"
- depends on ACPI
- depends on INTEL_SCU_IPC
+ depends on ACPI && X86_PLATFORM_DEVICES
+ select INTEL_SCU_IPC
select USB_ROLE_SWITCH
help
Driver for USB muxes controlled by Intel PMC FW. Intel PMC FW can


2022-02-01 15:47:29

by Heikki Krogerus

[permalink] [raw]
Subject: Re: [PATCH v2] usb: typec: mux: select not-visible INTEL_SCU_IPC

On Sun, Jan 30, 2022 at 10:50:32AM -0800, Randy Dunlap wrote:
> Use "select INTEL_SCU_IPC" instead of depending on it since it is
> not a visible Kconfig symbol and it may not otherwise be set/enabled.
>
> Fixes: b62851491a55 ("usb: typec: mux: Convert the Intel PMC Mux driver to use new SCU IPC API")
> Signed-off-by: Randy Dunlap <[email protected]>
> Cc: Heikki Krogerus <[email protected]>
> Cc: Mika Westerberg <[email protected]>
> Cc: Lee Jones <[email protected]>
> Cc: [email protected]
> Cc: Greg Kroah-Hartman <[email protected]>
> Cc: kernel test robot <[email protected]>
> ---
> v2: add dependency on X86_PLATFORM_DEVICES to fix build error that was
> Reported_by: kernel test robot <[email protected]>
>
> drivers/usb/typec/mux/Kconfig | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> --- linux-next-20220128.orig/drivers/usb/typec/mux/Kconfig
> +++ linux-next-20220128/drivers/usb/typec/mux/Kconfig
> @@ -11,8 +11,8 @@ config TYPEC_MUX_PI3USB30532
>
> config TYPEC_MUX_INTEL_PMC
> tristate "Intel PMC mux control"
> - depends on ACPI
> - depends on INTEL_SCU_IPC
> + depends on ACPI && X86_PLATFORM_DEVICES
> + select INTEL_SCU_IPC
> select USB_ROLE_SWITCH
> help
> Driver for USB muxes controlled by Intel PMC FW. Intel PMC FW can

This will cause the driver to fail at probe time if there are no SCU
device drivers enabled.

The idea is that the SCU device drivers select the SCU IPC library,
not the users of the library like this mux driver.

thanks,

--
heikki

2022-02-01 20:45:19

by Randy Dunlap

[permalink] [raw]
Subject: Re: [PATCH v2] usb: typec: mux: select not-visible INTEL_SCU_IPC



On 1/31/22 00:42, Heikki Krogerus wrote:
> On Sun, Jan 30, 2022 at 10:50:32AM -0800, Randy Dunlap wrote:
>> Use "select INTEL_SCU_IPC" instead of depending on it since it is
>> not a visible Kconfig symbol and it may not otherwise be set/enabled.
>>
>> Fixes: b62851491a55 ("usb: typec: mux: Convert the Intel PMC Mux driver to use new SCU IPC API")
>> Signed-off-by: Randy Dunlap <[email protected]>
>> Cc: Heikki Krogerus <[email protected]>
>> Cc: Mika Westerberg <[email protected]>
>> Cc: Lee Jones <[email protected]>
>> Cc: [email protected]
>> Cc: Greg Kroah-Hartman <[email protected]>
>> Cc: kernel test robot <[email protected]>
>> ---
>> v2: add dependency on X86_PLATFORM_DEVICES to fix build error that was
>> Reported_by: kernel test robot <[email protected]>
>>
>> drivers/usb/typec/mux/Kconfig | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> --- linux-next-20220128.orig/drivers/usb/typec/mux/Kconfig
>> +++ linux-next-20220128/drivers/usb/typec/mux/Kconfig
>> @@ -11,8 +11,8 @@ config TYPEC_MUX_PI3USB30532
>>
>> config TYPEC_MUX_INTEL_PMC
>> tristate "Intel PMC mux control"
>> - depends on ACPI
>> - depends on INTEL_SCU_IPC
>> + depends on ACPI && X86_PLATFORM_DEVICES
>> + select INTEL_SCU_IPC
>> select USB_ROLE_SWITCH
>> help
>> Driver for USB muxes controlled by Intel PMC FW. Intel PMC FW can
>
> This will cause the driver to fail at probe time if there are no SCU
> device drivers enabled.
>
> The idea is that the SCU device drivers select the SCU IPC library,
> not the users of the library like this mux driver.

OK. Thanks.

--
~Randy