linux-kernel - Re: [PATCH 05/14] mfd: sun6i-prcm: Add sun8i analog codec as subnode

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Message-ID: <20161026140501.GH13127@dell>
Date:   Wed, 26 Oct 2016 15:05:01 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Mylène Josserand 
        <mylene.josserand@...e-electrons.com>
Cc:     vinod.koul@...el.com, maxime.ripard@...e-electrons.com,
        wens@...e.org, mturquette@...libre.com, sboyd@...eaurora.org,
        lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, mark.rutland@....com, robh+dt@...nel.org,
        linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-sunxi@...glegroups.com, thomas.petazzoni@...e-electrons.com,
        alexandre.belloni@...e-electrons.com
Subject: Re: [PATCH 05/14] mfd: sun6i-prcm: Add sun8i analog codec as subnode

On Tue, 04 Oct 2016, Mylène Josserand wrote:

> The sun8i audio codec is using PRCM registers to configure all the
> analog part of the audio codec. It is added as a subnode of the PRCM
> with his resource (offset of 0x1c0).
> 
> Signed-off-by: Mylène Josserand <mylene.josserand@...e-electrons.com>
> ---
>  drivers/mfd/sun6i-prcm.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/drivers/mfd/sun6i-prcm.c b/drivers/mfd/sun6i-prcm.c
> index 011fcc5..e0c6bf5 100644
> --- a/drivers/mfd/sun6i-prcm.c
> +++ b/drivers/mfd/sun6i-prcm.c
> @@ -12,6 +12,8 @@
>  #include <linux/init.h>
>  #include <linux/of.h>
>  
> +#define SUN6I_AUDIO_CODEC_ANALOG	0x1c0
> +
>  struct prcm_data {
>  	int nsubdevs;
>  	const struct mfd_cell *subdevs;
> @@ -57,6 +59,14 @@ static const struct resource sun6i_a31_apb0_rstc_res[] = {
>  	},
>  };
>  
> +static const struct resource sun8i_adda_res[] = {
> +	{
> +		.start = SUN6I_AUDIO_CODEC_ANALOG,
> +		.end = 0x1c3,

This also needs defining.  No magic numbers please.

> +		.flags = IORESOURCE_MEM,
> +	},
> +};
> +
>  static const struct mfd_cell sun6i_a31_prcm_subdevs[] = {
>  	{
>  		.name = "sun6i-a31-ar100-clk",
> @@ -109,6 +119,12 @@ static const struct mfd_cell sun8i_a23_prcm_subdevs[] = {
>  		.num_resources = ARRAY_SIZE(sun6i_a31_apb0_rstc_res),
>  		.resources = sun6i_a31_apb0_rstc_res,
>  	},
> +	{
> +		.name = "sun8i-codec-analog",
> +		.of_compatible = "allwinner,sun8i-codec-analog",
> +		.num_resources = ARRAY_SIZE(sun8i_adda_res),
> +		.resources = sun8i_adda_res,
> +	},
>  };
>  
>  static const struct prcm_data sun6i_a31_prcm_data = {

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