linux-kernel - Re: [PATCH v2 1/4] soc: brcmstb: Add Product ID and Family ID helper functions

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Message-ID: <b8906b0f-1ff4-0eca-c452-2579cd160416@gmail.com>
Date:   Tue, 13 Jun 2017 17:50:05 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Al Cooper <al.cooper@...adcom.com>, linux-kernel@...r.kernel.org
Cc:     Al Cooper <alcooperx@...il.com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        bcm-kernel-feedback-list@...adcom.com,
        Kishon Vijay Abraham I <kishon@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/4] soc: brcmstb: Add Product ID and Family ID helper
 functions

On 06/13/2017 07:55 AM, Al Cooper wrote:
> From: Al Cooper <alcooperx@...il.com>
> 
> Signed-off-by: Al Cooper <alcooperx@...il.com>
> ---
>  drivers/soc/bcm/brcmstb/common.c    | 12 ++++++++++++
>  include/linux/soc/brcmstb/brcmstb.h | 10 ++++++++++
>  2 files changed, 22 insertions(+)
> 
> diff --git a/drivers/soc/bcm/brcmstb/common.c b/drivers/soc/bcm/brcmstb/common.c
> index b6195fd..184dbf5 100644
> --- a/drivers/soc/bcm/brcmstb/common.c
> +++ b/drivers/soc/bcm/brcmstb/common.c
> @@ -40,6 +40,18 @@ bool soc_is_brcmstb(void)
>  	return of_match_node(brcmstb_machine_match, root) != NULL;
>  }
>  
> +u32 brcmstb_get_family_id(void)
> +{
> +	return family_id;
> +}
> +EXPORT_SYMBOL(brcmstb_get_family_id);
> +
> +u32 brcmstb_get_product_id(void)
> +{
> +	return product_id;
> +}
> +EXPORT_SYMBOL(brcmstb_get_product_id);
> +
>  static const struct of_device_id sun_top_ctrl_match[] = {
>  	{ .compatible = "brcm,bcm7125-sun-top-ctrl", },
>  	{ .compatible = "brcm,bcm7346-sun-top-ctrl", },
> diff --git a/include/linux/soc/brcmstb/brcmstb.h b/include/linux/soc/brcmstb/brcmstb.h
> index 337ce41..23e4dc9 100644
> --- a/include/linux/soc/brcmstb/brcmstb.h
> +++ b/include/linux/soc/brcmstb/brcmstb.h
> @@ -1,10 +1,20 @@
>  #ifndef __BRCMSTB_SOC_H
>  #define __BRCMSTB_SOC_H
>  
> +#define BRCM_ID(reg)	((u32)reg >> 28 ? (u32)reg >> 16 : (u32)reg >> 8)
> +#define BRCM_REV(reg)	((u32)reg & 0xff)
> +
>  /*
>   * Bus Interface Unit control register setup, must happen early during boot,
>   * before SMP is brought up, called by machine entry point.
>   */
>  void brcmstb_biuctrl_init(void);
>  
> +/*
> + * Helper functions for getting family or product id from the
> + * SoC driver.
> + */
> +u32 brcmstb_get_family_id(void);
> +u32 brcmstb_get_product_id(void);

As spotted by the kbuild robot, you need to add empty stubs when
CONFIG_SOC_BRCMSTB is not defined.

Thanks!
-- 
Florian