linux-kernel - Re: [PATCH 2/5] mfd: twl: remove useless header

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Message-ID: <20170103153050.GH2977@dell>
Date:   Tue, 3 Jan 2017 15:30:50 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Nicolae Rosia <Nicolae_Rosia@...tor.com>
Cc:     Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Tony Lindgren <tony@...mide.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Graeme Gregory <gg@...mlogic.co.uk>,
        Baruch Siach <baruch@...s.co.il>, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 2/5] mfd: twl: remove useless header

On Sat, 26 Nov 2016, Nicolae Rosia wrote:

> This header has one user, twl-core.c .
> Remove it before it gets more users.

The header is not useless.  It prevents us from having to place
external prototypes into C files.

> Signed-off-by: Nicolae Rosia <Nicolae_Rosia@...tor.com>
> ---
>  drivers/mfd/twl-core.c    |  8 ++++++--
>  drivers/mfd/twl-core.h    | 10 ----------
>  drivers/mfd/twl4030-irq.c |  2 --
>  drivers/mfd/twl6030-irq.c |  2 --
>  4 files changed, 6 insertions(+), 16 deletions(-)
>  delete mode 100644 drivers/mfd/twl-core.h
> 
> diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
> index 48b0668..e16084e 100644
> --- a/drivers/mfd/twl-core.c
> +++ b/drivers/mfd/twl-core.c
> @@ -52,8 +52,6 @@
>  /* Register descriptions for audio */
>  #include <linux/mfd/twl4030-audio.h>
>  
> -#include "twl-core.h"
> -
>  /*
>   * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
>   * Management and System Companion Device" chips originally designed for
> @@ -150,6 +148,12 @@
>  
>  /*----------------------------------------------------------------------*/
>  
> +int twl6030_init_irq(struct device *dev, int irq_num);
> +int twl6030_exit_irq(void);
> +int twl4030_init_irq(struct device *dev, int irq_num);
> +int twl4030_exit_irq(void);
> +int twl4030_init_chip_irq(const char *chip);
> +
>  /* Structure for each TWL4030/TWL6030 Slave */
>  struct twl_client {
>  	struct i2c_client *client;
> diff --git a/drivers/mfd/twl-core.h b/drivers/mfd/twl-core.h
> deleted file mode 100644
> index 6ff99dc..0000000
> --- a/drivers/mfd/twl-core.h
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -#ifndef __TWL_CORE_H__
> -#define __TWL_CORE_H__
> -
> -extern int twl6030_init_irq(struct device *dev, int irq_num);
> -extern int twl6030_exit_irq(void);
> -extern int twl4030_init_irq(struct device *dev, int irq_num);
> -extern int twl4030_exit_irq(void);
> -extern int twl4030_init_chip_irq(const char *chip);
> -
> -#endif /*  __TWL_CORE_H__ */
> diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
> index b46c0cf..000c231 100644
> --- a/drivers/mfd/twl4030-irq.c
> +++ b/drivers/mfd/twl4030-irq.c
> @@ -35,8 +35,6 @@
>  #include <linux/irqdomain.h>
>  #include <linux/i2c/twl.h>
>  
> -#include "twl-core.h"
> -
>  /*
>   * TWL4030 IRQ handling has two stages in hardware, and thus in software.
>   * The Primary Interrupt Handler (PIH) stage exposes status bits saying
> diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
> index 5357450..63eca76 100644
> --- a/drivers/mfd/twl6030-irq.c
> +++ b/drivers/mfd/twl6030-irq.c
> @@ -42,8 +42,6 @@
>  #include <linux/irqdomain.h>
>  #include <linux/of_device.h>
>  
> -#include "twl-core.h"
> -
>  /*
>   * TWL6030 (unlike its predecessors, which had two level interrupt handling)
>   * three interrupt registers INT_STS_A, INT_STS_B and INT_STS_C.

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