linux-kernel - Re: [PATCH 1/2] mfd: hi655x: Reference required regulator driver

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Message-ID: <20170323163105.gowbe7p45uak7cyd@dell>
Date:   Thu, 23 Mar 2017 16:31:05 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Jeremy Linton <lintonrjeremy@...il.com>
Cc:     linux-kernel@...r.kernel.org, broonie@...nel.org,
        lgirdwood@...il.com, puck.chen@...ilicon.com
Subject: Re: [PATCH 1/2] mfd: hi655x: Reference required regulator driver

On Mon, 20 Mar 2017, Jeremy Linton wrote:

> The hisi pmic requires an independent regulator driver to be
> loaded so that devices dependent on the pmic/regulator are
> started properly. Currently there is only a single compatible
> regulator driver in the tree, so reference it with a module soft
> dependency so that modprobe loads it whenever the hisi pmic
> driver is loaded.

This is a new one on my, but it sounds okay.

OOI, what happens when there are lots of compatible drivers?

> Signed-off-by: Jeremy Linton <lintonrjeremy@...il.com>
> ---
>  drivers/mfd/hi655x-pmic.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
> index ba706ad..56e027d 100644
> --- a/drivers/mfd/hi655x-pmic.c
> +++ b/drivers/mfd/hi655x-pmic.c
> @@ -184,3 +184,4 @@ module_platform_driver(hi655x_pmic_driver);
>  MODULE_AUTHOR("Chen Feng <puck.chen@...ilicon.com>");
>  MODULE_DESCRIPTION("Hisilicon hi655x PMIC driver");
>  MODULE_LICENSE("GPL v2");
> +MODULE_SOFTDEP("post: hi655x-regulator");

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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