linux-kernel - Re: [PATCH] ACPI / PMIC: xpower: fix IOSF

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Date:   Wed, 7 Nov 2018 13:39:59 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ACPI / PMIC: xpower: fix IOSF_MBI dependency

Hi,

On 07-11-18 13:22, Rafael J. Wysocki wrote:
> On Fri, Nov 2, 2018 at 12:07 PM Arnd Bergmann <arnd@...db.de> wrote:
>>
>> We still get a link failure with IOSF_MBI=m when the xpower driver
>> is built-in:
>>
>> drivers/acpi/pmic/intel_pmic_xpower.o: In function `intel_xpower_pmic_update_power':
>> intel_pmic_xpower.c:(.text+0x4f2): undefined reference to `iosf_mbi_block_punit_i2c_access'
>> intel_pmic_xpower.c:(.text+0x5e2): undefined reference to `iosf_mbi_unblock_punit_i2c_access'
>>
>> This makes the dependency stronger, so we can only build when IOSF_MBI
>> is built-in.
>>
>> Fixes: 6a9b593d4b6f ("ACPI / PMIC: xpower: Add depends on IOSF_MBI to Kconfig entry")
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>> ---
>>   drivers/acpi/Kconfig | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index 18851e7eedd5..31a3c4a03f61 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -514,7 +514,7 @@ config CRC_PMIC_OPREGION
>>
>>   config XPOWER_PMIC_OPREGION
>>          bool "ACPI operation region support for XPower AXP288 PMIC"
>> -       depends on MFD_AXP20X_I2C && IOSF_MBI
>> +       depends on MFD_AXP20X_I2C && IOSF_MBI=y
>>          help
>>            This config adds ACPI operation region support for XPower AXP288 PMIC.
>>
>> --
> 
> At this point I'm inclined to apply the patch as is as a short-term
> fix and improvements can be made on top of it.
> 
> Any objections?

Not from me, go for it :)

Regards,

Hans