linux-kernel - Re: [PATCHv4 07/10] mfd: ti-lmu: register one backlight device per channel

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Message-ID: <20180416144243.3xslyuzgbfz7dc2j@dell>
Date:   Mon, 16 Apr 2018 15:42:43 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Sebastian Reichel <sebastian.reichel@...labora.co.uk>
Cc:     Sebastian Reichel <sre@...nel.org>, Milo Kim <Milo.Kim@...com>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: [PATCHv4 07/10] mfd: ti-lmu: register one backlight device per
 channel

On Fri, 30 Mar 2018, Sebastian Reichel wrote:

> All LMU devices support multiple channels, that can be controlled
> independently. This registers one backlight sub-device per channel.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
> ---
>  drivers/mfd/ti-lmu.c       | 62 +++++++++++++++++++++++++++++++++++++---------
>  include/linux/mfd/ti-lmu.h |  4 +++
>  2 files changed, 54 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/mfd/ti-lmu.c b/drivers/mfd/ti-lmu.c
> index f43b8acc30e1..f4311d215dfa 100644
> --- a/drivers/mfd/ti-lmu.c
> +++ b/drivers/mfd/ti-lmu.c
> @@ -56,8 +56,16 @@ static void ti_lmu_disable_hw(void *data)
>  
>  static const struct mfd_cell lm3532_devices[] = {
>  	{
> -		.name          = "ti-lmu-backlight",
> -		.id            = LM3532,
> +		.name          = "ti-lmu-led-backlight",
> +		.id            = 0,

What's the reason for you manually setting .id?

> +	},
> +	{
> +		.name          = "ti-lmu-led-backlight",
> +		.id            = 1,
> +	},
> +	{
> +		.name          = "ti-lmu-led-backlight",
> +		.id            = 2,
>  	},
>  };

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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