linux-kernel - Re: [PATCH v2] reset: qcom-aoss: Allow CONFIG_RESET_QCOM

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Date:   Tue, 7 Jan 2020 16:02:51 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     lkml <linux-kernel@...r.kernel.org>, Todd Kjos <tkjos@...gle.com>,
        Alistair Delva <adelva@...gle.com>,
        Amit Pundir <amit.pundir@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
Subject: Re: [PATCH v2] reset: qcom-aoss: Allow CONFIG_RESET_QCOM_AOSS to be
 a tristate

On Tue 07 Jan 11:13 PST 2020, John Stultz wrote:

> Allow CONFIG_RESET_QCOM_AOSS to be set as as =m
> to allow for the driver to be loaded from a modules.
> 
> Also replaces the builtin_platform_driver() line with
> module_platform_driver()
> 
> Cc: Todd Kjos <tkjos@...gle.com>
> Cc: Alistair Delva <adelva@...gle.com>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: Amit Pundir <amit.pundir@...aro.org>
> Cc: Philipp Zabel <p.zabel@...gutronix.de>
> Signed-off-by: John Stultz <john.stultz@...aro.org>
> ---
> v2: Fix builtin_platform_driver line in driver code
> ---
>  drivers/reset/Kconfig           | 2 +-
>  drivers/reset/reset-qcom-aoss.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
> index 3ad7817ce1f0..45e70524af36 100644
> --- a/drivers/reset/Kconfig
> +++ b/drivers/reset/Kconfig
> @@ -99,7 +99,7 @@ config RESET_PISTACHIO
>  	  This enables the reset driver for ImgTec Pistachio SoCs.
>  
>  config RESET_QCOM_AOSS
> -	bool "Qcom AOSS Reset Driver"
> +	tristate "Qcom AOSS Reset Driver"
>  	depends on ARCH_QCOM || COMPILE_TEST
>  	help
>  	  This enables the AOSS (always on subsystem) reset driver
> diff --git a/drivers/reset/reset-qcom-aoss.c b/drivers/reset/reset-qcom-aoss.c
> index 36db96750450..76367f17fc73 100644
> --- a/drivers/reset/reset-qcom-aoss.c
> +++ b/drivers/reset/reset-qcom-aoss.c
> @@ -127,7 +127,7 @@ static struct platform_driver qcom_aoss_reset_driver = {
>  	},
>  };
>  
> -builtin_platform_driver(qcom_aoss_reset_driver);
> +module_platform_driver(qcom_aoss_reset_driver);

Thought we had this covered already, sorry for missing it yesterday.

In addition to module_platform_driver() you also need a
MODULE_DEVICE_TABLE(of, qcom_aoss_reset_of_match), or the driver won't
be loaded automatically.

Regards,
Bjorn