linux-kernel - Re: [PATCH v3 1/2] irqchip: Kconfig: module build support for the TI interrupt router driver

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Message-ID: <c97847c6-7e40-4b36-97bd-663aaa431aa7@baylibre.com>
Date: Wed, 16 Oct 2024 16:18:40 +0200
From: Guillaume LA ROQUE <glaroque@...libre.com>
To: Andrew Davis <afd@...com>, Catalin Marinas <catalin.marinas@....com>,
 Will Deacon <will@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
 Santosh Shilimkar <ssantosh@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 vishalm@...com, Mattijs Korpershoek <mkorpershoek@...libre.com>,
 Kevin Hilman <khilman@...libre.com>, Nicolas Frayer <nfrayer@...libre.com>
Subject: Re: [PATCH v3 1/2] irqchip: Kconfig: module build support for the TI
 interrupt router driver

Hi Andrew,

Le 16/10/2024 à 15:37, Andrew Davis a écrit :
> On 10/16/24 4:41 AM, Guillaume La Roque wrote:
>> From: Nicolas Frayer <nfrayer@...libre.com>
>>
>> Added module build support in Kconfig for the TI SCI interrupt router
>> driver
>>
>> Signed-off-by: Nicolas Frayer <nfrayer@...libre.com>
>> Signed-off-by: Guillaume La Roque <glaroque@...libre.com>
>> ---
>>   arch/arm64/Kconfig.platforms      | 1 -
>>   drivers/irqchip/Kconfig           | 3 ++-
>>   drivers/irqchip/irq-ti-sci-intr.c | 1 +
>>   3 files changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
>> index 6c6d11536b42..393845a3ae5c 100644
>> --- a/arch/arm64/Kconfig.platforms
>> +++ b/arch/arm64/Kconfig.platforms
>> @@ -135,7 +135,6 @@ config ARCH_K3
>>       select SOC_TI
>>       select TI_MESSAGE_MANAGER
>>       select TI_SCI_PROTOCOL
>> -    select TI_SCI_INTR_IRQCHIP
>>       select TI_SCI_INTA_IRQCHIP
>>       select TI_K3_SOCINFO
>>       help
>> diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
>> index 341cd9ca5a05..a958731404e9 100644
>> --- a/drivers/irqchip/Kconfig
>> +++ b/drivers/irqchip/Kconfig
>> @@ -533,9 +533,10 @@ config LS1X_IRQ
>>         Support for the Loongson-1 platform Interrupt Controller.
>>     config TI_SCI_INTR_IRQCHIP
>> -    bool
>> +    tristate "TI SCI INTR Interrupt Controller"
>
> Although not needed, might be good to gate this on ARCH_K3
> as it only makes sense to add when K3 is an enabled platform.

Actually if ARCH_K3 is not selected it's not possible to enable TI 
IRQCHIP driver from menuconfig so depends look good or do you want to 
have when i select irqchip driver ARCH_K3 is enabled ?

> Then add on compile test support:
>
> depends on ARCH_K3 || COMPILE_TEST
>
i will add in v4.

thanks for review

Guillaume
> Andrew
>
>>       depends on TI_SCI_PROTOCOL
>>       select IRQ_DOMAIN_HIERARCHY
>> +    default ARCH_K3
>>       help
>>         This enables the irqchip driver support for K3 Interrupt router
>>         over TI System Control Interface available on some new TI's 
>> SoCs.
>> diff --git a/drivers/irqchip/irq-ti-sci-intr.c 
>> b/drivers/irqchip/irq-ti-sci-intr.c
>> index c027cd9e4a69..b49a73106c69 100644
>> --- a/drivers/irqchip/irq-ti-sci-intr.c
>> +++ b/drivers/irqchip/irq-ti-sci-intr.c
>> @@ -303,3 +303,4 @@ 
>> module_platform_driver(ti_sci_intr_irq_domain_driver);
>>     MODULE_AUTHOR("Lokesh Vutla <lokeshvutla@...om>");
>>   MODULE_DESCRIPTION("K3 Interrupt Router driver over TI SCI protocol");
>> +MODULE_LICENSE("GPL");
>>