linux-kernel - Re: [PATCH v6 3/6] m68k: coldfire: Add clk_get

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Date:   Thu, 29 Nov 2018 22:10:19 +1000
From:   Greg Ungerer <gerg@...ux-m68k.org>
To:     Phil Edworthy <phil.edworthy@...esas.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-m68k@...ts.linux-m68k.org" <linux-m68k@...ts.linux-m68k.org>
Subject: Re: [PATCH v6 3/6] m68k: coldfire: Add clk_get_optional() function

Hi Phil,

On 29/11/18 10:02 pm, Phil Edworthy wrote:
> On 29 November 2018 11:55, Greg Ungerer wrote:
>> On 17/11/18 12:59 am, Phil Edworthy wrote:
>>> clk_get_optional() returns NULL if not found instead of -ENOENT,
>>> otherwise the behaviour is the same as clk_get().
>>>
>>> Signed-off-by: Phil Edworthy <phil.edworthy@...esas.com>
>>
>> Acked-by: Greg Ungerer <gerg@@linux-m68k.org>
>>
>> Looks good. Do you want me to take this in the m68knommu git tree?
>> Or is the whole series going through some other tree?
> This patch is no longer needed as I found a better way to implement this:
> [PATCH v8] clk: Add (devm_)clk_get_optional() functions
> https://patchwork.kernel.org/patch/10690437/
> 
> Apologies for any confusion,

No problem, I'll just drop it then.

Regards
Greg


>>> ---
>>>    arch/m68k/coldfire/clk.c | 11 +++++++++++
>>>    1 file changed, 11 insertions(+)
>>>
>>> diff --git a/arch/m68k/coldfire/clk.c b/arch/m68k/coldfire/clk.c index
>>> 7bc666e482eb..b221cabc7f54 100644
>>> --- a/arch/m68k/coldfire/clk.c
>>> +++ b/arch/m68k/coldfire/clk.c
>>> @@ -87,6 +87,17 @@ struct clk *clk_get(struct device *dev, const char *id)
>>>    }
>>>    EXPORT_SYMBOL(clk_get);
>>>
>>> +struct clk *clk_get_optional(struct device *dev, const char *id) {
>>> +	struct clk *clk = clk_get(dev, id);
>>> +
>>> +	if (clk == ERR_PTR(-ENOENT))
>>> +		clk = NULL;
>>> +
>>> +	return clk;
>>> +}
>>> +EXPORT_SYMBOL(clk_get_optional);
>>> +
>>>    int clk_enable(struct clk *clk)
>>>    {
>>>    	unsigned long flags;
>>>