linux-kernel - Re: [PATCH] clk: fix compile for OF && !COMMON

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Date:	Tue, 17 Jul 2012 10:28:41 +0530
From:	Prashant Gaikwad <pgaikwad@...dia.com>
To:	Rob Herring <robherring2@...il.com>
CC:	"mturquette@...com" <mturquette@...com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"aletes.xgr@...il.com" <aletes.xgr@...il.com>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH] clk: fix compile for OF && !COMMON_CLK

On Tuesday 17 July 2012 03:16 AM, Rob Herring wrote:
> From: Rob Herring<rob.herring@...xeda.com>
>
> With commit 766e6a4ec602d0c107 (clk: add DT clock binding support),
> compiling with OF&&  !COMMON_CLK is broken.

Thanks Rob!!

This patch fixed the build failure for Tegra.

> Reported-by: Alexandre Pereira da Silva<aletes.xgr@...il.com>
> Reported-by: Prashant Gaikwad<pgaikwad@...dia.com>
> Signed-off-by: Rob Herring<rob.herring@...xeda.com>
> ---
>   drivers/clk/clkdev.c |    2 +-
>   include/linux/clk.h  |    7 ++++---
>   2 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
> index 20649b3..8f87b0f 100644
> --- a/drivers/clk/clkdev.c
> +++ b/drivers/clk/clkdev.c
> @@ -24,7 +24,7 @@
>   static LIST_HEAD(clocks);
>   static DEFINE_MUTEX(clocks_mutex);
>
> -#ifdef CONFIG_OF
> +#if defined(CONFIG_OF)&&  defined(CONFIG_COMMON_CLK)
>   struct clk *of_clk_get(struct device_node *np, int index)
>   {
>   	struct of_phandle_args clkspec;
> diff --git a/include/linux/clk.h b/include/linux/clk.h
> index 8b70342..35f7492 100644
> --- a/include/linux/clk.h
> +++ b/include/linux/clk.h
> @@ -12,6 +12,7 @@
>   #ifndef __LINUX_CLK_H
>   #define __LINUX_CLK_H
>
> +#include<linux/err.h>
>   #include<linux/kernel.h>
>   #include<linux/notifier.h>
>
> @@ -313,19 +314,19 @@ int clk_add_alias(const char *alias, const char *alias_dev_name, char *id,
>   struct device_node;
>   struct of_phandle_args;
>
> -#ifdef CONFIG_OF
> +#if defined(CONFIG_OF)&&  defined(CONFIG_COMMON_CLK)
>   struct clk *of_clk_get(struct device_node *np, int index);
>   struct clk *of_clk_get_by_name(struct device_node *np, const char *name);
>   struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec);
>   #else
>   static inline struct clk *of_clk_get(struct device_node *np, int index)
>   {
> -	return NULL;
> +	return ERR_PTR(-EINVAL);
>   }
>   static inline struct clk *of_clk_get_by_name(struct device_node *np,
>   					     const char *name)
>   {
> -	return NULL;
> +	return ERR_PTR(-EINVAL);
>   }
>   #endif
>

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