linux-kernel - Re: [PATCH] mfd: wm5102: Mark register 0x19 readable

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Date:	Mon, 10 Mar 2014 16:38:11 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>, linux-kernel@...r.kernel.org,
	patches@...nsource.wolfsonmicro.com,
	linaro-kernel@...ts.linaro.org, Mark Brown <broonie@...aro.org>
Subject: Re: [PATCH] mfd: wm5102: Mark register 0x19 readable

> From: Mark Brown <broonie@...aro.org>
> 
> During init the core checks if the wm5102 has finished starting by reading
> register 0x19 and looking at the value. This read always fails since this
> is not a readable register, mark it as being one.
> 
> Signed-off-by: Mark Brown <broonie@...aro.org>
> ---
>  drivers/mfd/wm5102-tables.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
> index f4668d39e542..07f024fd4ded 100644
> --- a/drivers/mfd/wm5102-tables.c
> +++ b/drivers/mfd/wm5102-tables.c
> @@ -1016,6 +1016,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
>  	case ARIZONA_WRITE_SEQUENCER_CTRL_0:
>  	case ARIZONA_WRITE_SEQUENCER_CTRL_1:
>  	case ARIZONA_WRITE_SEQUENCER_CTRL_2:
> +	case 0x19:

Can we have a #define for these please?

>  	case ARIZONA_WRITE_SEQUENCER_PROM:
>  	case ARIZONA_TONE_GENERATOR_1:
>  	case ARIZONA_TONE_GENERATOR_2:

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