linux-kernel - Re: [PATCH 13/19] clk: ti: Silence sparse warnings

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Date:	Wed, 6 May 2015 11:15:07 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Stephen Boyd <sboyd@...eaurora.org>,
	Mike Turquette <mturquette@...aro.org>
CC:	<linux-kernel@...r.kernel.org>, <linux-clk@...r.kernel.org>,
	Tero Kristo <t-kristo@...com>
Subject: Re: [PATCH 13/19] clk: ti: Silence sparse warnings

On 05/06/2015 10:39 AM, Stephen Boyd wrote:
> drivers/clk/ti/clk.c:125:31: warning: incorrect type in return expression (different address spaces)
> drivers/clk/ti/clk.c:125:31:    expected void [noderef] <asn:2>*
> drivers/clk/ti/clk.c:125:31:    got void *
> drivers/clk/ti/clk.c:132:31: warning: incorrect type in return expression (different address spaces)
> drivers/clk/ti/clk.c:132:31:    expected void [noderef] <asn:2>*
> drivers/clk/ti/clk.c:132:31:    got void *
> drivers/clk/ti/dpll.c:180:14: warning: symbol '_get_reg' was not declared. Should it be static?
> drivers/clk/ti/fapll.c:624:32: warning: Using plain integer as NULL pointer
> drivers/clk/ti/fapll.c:625:31: warning: Using plain integer as NULL pointer
> drivers/clk/ti/fapll.c:630:40: warning: Using plain integer as NULL pointer
> drivers/clk/ti/clk-dra7-atl.c:158:22: warning: symbol 'atl_clk_ops' was not declared. Should it be static?
> drivers/clk/ti/clk-dra7-atl.c:170:39: warning: Using plain integer as NULL pointer
> 
> Cc: Peter Ujfalusi <peter.ujfalusi@...com>
> Cc: Tero Kristo <t-kristo@...com>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>

Acked-by: Peter Ujfalusi <peter.ujfalusi@...com>

> ---
>  drivers/clk/ti/clk-dra7-atl.c | 4 ++--
>  drivers/clk/ti/clk.c          | 4 ++--
>  drivers/clk/ti/dpll.c         | 2 +-
>  drivers/clk/ti/fapll.c        | 6 +++---
>  4 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c
> index d86bc46b93bd..1fe7429a7536 100644
> --- a/drivers/clk/ti/clk-dra7-atl.c
> +++ b/drivers/clk/ti/clk-dra7-atl.c
> @@ -155,7 +155,7 @@ static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate,
>  	return 0;
>  }
>  
> -const struct clk_ops atl_clk_ops = {
> +static const struct clk_ops atl_clk_ops = {
>  	.enable		= atl_clk_enable,
>  	.disable	= atl_clk_disable,
>  	.is_enabled	= atl_clk_is_enabled,
> @@ -167,7 +167,7 @@ const struct clk_ops atl_clk_ops = {
>  static void __init of_dra7_atl_clock_setup(struct device_node *node)
>  {
>  	struct dra7_atl_desc *clk_hw = NULL;
> -	struct clk_init_data init = { 0 };
> +	struct clk_init_data init = { NULL };
>  	const char **parent_names = NULL;
>  	struct clk *clk;
>  
> diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
> index 0ebe5c51062b..64bb5e8a3b8c 100644
> --- a/drivers/clk/ti/clk.c
> +++ b/drivers/clk/ti/clk.c
> @@ -122,14 +122,14 @@ void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index)
>  
>  	if (i == CLK_MAX_MEMMAPS) {
>  		pr_err("clk-provider not found for %s!\n", node->name);
> -		return ERR_PTR(-ENOENT);
> +		return IOMEM_ERR_PTR(-ENOENT);
>  	}
>  
>  	reg->index = i;
>  
>  	if (of_property_read_u32_index(node, "reg", index, &val)) {
>  		pr_err("%s must have reg[%d]!\n", node->name, index);
> -		return ERR_PTR(-EINVAL);
> +		return IOMEM_ERR_PTR(-EINVAL);
>  	}
>  
>  	reg->offset = val;
> diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
> index 11478a501c30..2aacf7a3bcae 100644
> --- a/drivers/clk/ti/dpll.c
> +++ b/drivers/clk/ti/dpll.c
> @@ -177,7 +177,7 @@ cleanup:
>  }
>  
>  #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
> -void __iomem *_get_reg(u8 module, u16 offset)
> +static void __iomem *_get_reg(u8 module, u16 offset)
>  {
>  	u32 reg;
>  	struct clk_omap_reg *reg_setup;
> diff --git a/drivers/clk/ti/fapll.c b/drivers/clk/ti/fapll.c
> index ffcd8e09e85b..730aa62454a2 100644
> --- a/drivers/clk/ti/fapll.c
> +++ b/drivers/clk/ti/fapll.c
> @@ -621,13 +621,13 @@ static void __init ti_fapll_setup(struct device_node *node)
>  
>  		/* Check for hardwired audio_pll_clk1 */
>  		if (is_audio_pll_clk1(freq)) {
> -			freq = 0;
> -			div = 0;
> +			freq = NULL;
> +			div = NULL;
>  		} else {
>  			/* Does the synthesizer have a FREQ register? */
>  			v = readl_relaxed(freq);
>  			if (!v)
> -				freq = 0;
> +				freq = NULL;
>  		}
>  		synth_clk = ti_fapll_synth_setup(fd, freq, div, output_instance,
>  						 output_name, node->name,
> 


-- 
Péter
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