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Message-ID: <c001c34b-e20c-f32e-f247-722d34a8db3d@linaro.org>
Date:   Mon, 4 Sep 2023 12:51:22 +0200
From:   Philippe Mathieu-Daudé <philmd@...aro.org>
To:     Yuan Tan <tanyuan@...ylab.org>, mpe@...erman.id.au,
        christophe.leroy@...roup.eu, tglx@...utronix.de, mingo@...hat.com,
        tsbogend@...ha.franken.de, hdegoede@...hat.com
Cc:     linux@...ssschuh.net, w@....eu, falcon@...ylab.org,
        linux-mips@...r.kernel.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 1/3] kconfig: add dependencies of POWER_RESET for mips
 malta

On 4/9/23 11:24, Yuan Tan wrote:
> Hi,
> 
> On 9/4/2023 3:40 PM, Philippe Mathieu-Daudé wrote:
>> Hi,
>>
>> On 1/9/23 04:42, Yuan Tan wrote:
>>> MIPS Malta's power off depends on PCI, PCI_QUIRKS, and
>>> POWER_RESET_PIIX4_POWEROFF to work. Enable them when POWER_RESET is set
>>> for convenience.
>>>
>>> Suggested-by: Zhangjin Wu <falcon@...ylab.org>
>>> Signed-off-by: Yuan Tan <tanyuan@...ylab.org>
>>> ---
>>>   arch/mips/Kconfig | 3 +++
>>>   1 file changed, 3 insertions(+)
>>>
>>> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
>>> index bc8421859006..13bacbd05125 100644
>>> --- a/arch/mips/Kconfig
>>> +++ b/arch/mips/Kconfig
>>> @@ -547,6 +547,9 @@ config MIPS_MALTA
>>>       select MIPS_L1_CACHE_SHIFT_6
>>>       select MIPS_MSC
>>>       select PCI_GT64XXX_PCI0
>>> +    select PCI if POWER_RESET
>>> +    select PCI_QUIRKS if POWER_RESET
>>> +    select POWER_RESET_PIIX4_POWEROFF if POWER_RESET
>>>       select SMP_UP if SMP
>>>       select SWAP_IO_SPACE
>>>       select SYS_HAS_CPU_MIPS32_R1
>>
>> Shouldn't we also update the _defconfig files?
>>
> Sorry, in my last email, I forgot to reply to all. So I am now resending 
> this email.
> 
> In malta_defconfig, PCI and POWER_RESET_PIIX4_POWEROFF have already been 
> set and PCI_QUIRKS is also selected by FSL_PCI [=n].
> 
> So shutdown and reboot with malta_defconfig is working and there is no 
> need to update the malta_defconfig 🙂

Since the dependency is now enforced by Kconfig, the defconfig can
be simplified:

--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -306,3 +306,2 @@ CONFIG_SERIAL_8250_CONSOLE=y
  CONFIG_POWER_RESET=y
-CONFIG_POWER_RESET_PIIX4_POWEROFF=y
  CONFIG_POWER_RESET_SYSCON=y

But maybe we don't care, I don't know.

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