linux-kernel - Re: [PATCH 01/13] calk: davinci

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <50769C53.8030405@ti.com>
Date:	Thu, 11 Oct 2012 15:45:47 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	"Karicheri, Muralidharan" <m-karicheri2@...com>
CC:	"mturquette@...aro.org" <mturquette@...aro.org>,
	"arnd@...db.de" <arnd@...db.de>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"shawn.guo@...aro.org" <shawn.guo@...aro.org>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
	"viresh.linux@...il.com" <viresh.linux@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Hilman, Kevin" <khilman@...com>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"davinci-linux-open-source@...ux.davincidsp.com" 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-keystone@...t.ti.com - Linux developers for Keystone family of
	devices (May contain non-TIers)" <linux-keystone@...t.ti.com>,
	"linux-c6x-dev@...ux-c6x.org" <linux-c6x-dev@...ux-c6x.org>,
	"Chemparathy, Cyril" <cyril@...com>
Subject: Re: [PATCH 01/13] calk: davinci - add Main PLL clock driver

On 10/10/2012 8:04 PM, Karicheri, Muralidharan wrote:

>>>> +struct clk *clk_register_davinci_pll(struct device *dev, const char *name,
>>>> +			const char *parent_name,
>>>> +			struct clk_davinci_pll_data *pll_data) {
>>>> +	struct clk_init_data init;
>>>> +	struct clk_davinci_pll *pll;
>>>> +	struct clk *clk;
>>>> +
>>>> +	if (!pll_data)
>>>> +		return ERR_PTR(-ENODEV);
>>>> +
>>>> +	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
>>>> +	if (!pll)
>>>> +		return ERR_PTR(-ENOMEM);
>>>> +	init.name = name;
>>>> +	init.ops = &clk_pll_ops;
>>>> +	init.flags = pll_data->flags;
>>>> +	init.parent_names = (parent_name ? &parent_name : NULL);
>>>> +	init.num_parents = (parent_name ? 1 : 0);
>>>> +
>>>> +	pll->pll_data	= pll_data;
>>>> +	pll->hw.init = &init;
>>>> +
>>>> +	clk = clk_register(NULL, &pll->hw);
>>>> +	if (IS_ERR(clk))
>>>> +		kfree(pll);
>>>> +
>>>> +	return clk;
>>>> +}
>>>
>>> I guess there is an an "unregister" required as well which will free the pll memory
>>> allocated above and unregister the clock? Not sure if you would ever unregister a PLL,
>>> but providing this will probably help symmetry.
> Sekhar,
> 
> clk_unregister() itself is a null statement in clk.c. Besides none of the clk drivers presently have implemented the unregister(). So I believe this is unnecessary. 

I am ok with this.

> BTW, please review the v2 patch for the rest of the series. For the one you have already reviewed, it should be fine.

Okay. I see those now. BTW, this series also has a v2 in its 0/13. Are
there any differences between this and the other v2, or is that merely a
resend?

Thanks,
Sekhar
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/