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SubjectRe: [PATCH v2] usb: typec: mux: select not-visible INTEL_SCU_IPC
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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 <rdunlap@infradead.org>
>> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
>> Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
>> Cc: Lee Jones <lee.jones@linaro.org>
>> Cc: linux-usb@vger.kernel.org
>> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>> Cc: kernel test robot <lkp@intel.com>
>> ---
>> v2: add dependency on X86_PLATFORM_DEVICES to fix build error that was
>> Reported_by: kernel test robot <lkp@intel.com>
>>
>> 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

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