From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: getting rid of subsys_initcall usage? (was: Re: [PATCH RESEND] i2c: designware: use module_platform_driver)
Date: Fri, 30 Aug 2013 01:27:13 -0700 [thread overview]
Message-ID: <20130830082712.GT7656@atomide.com> (raw)
In-Reply-To: <CAMj5BkiDExikXi3JcVhO7RN8_82eGYhq3i6oPf5Wbipy=N+iHQ@mail.gmail.com>
* zhangfei gao <zhangfei.gao@gmail.com> [130829 23:36]:
> What about concerns from Wolfram:
> " Other people might be
> depending on subsys_initcall to get I2C active before they want to
> activate, say, PMICs. So, I fear regressions, since deferred probing
> might not be available in the needed places to avoid these regressions."
There should not be any reason to get a PMIC activated
early on. The system should be booting already at that point,
and the PMIC related init can be done later on.
> Is it too late using module_init for PMIC?
You can probably do it as a fix early on during the -rc
cycle too. Of course it needs to be verified to work first :)
> Besides, the deferred probing still there if depend on late registered
> pin control driver.
At least for omaps we have things working just fine with
pinctrl-single and a PMIC on I2C controller.
Regards,
Tony
next prev parent reply other threads:[~2013-08-30 8:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-20 8:32 [PATCH RESEND] i2c: designware: use module_platform_driver Zhangfei Gao
2013-08-28 9:57 ` getting rid of subsys_initcall usage? (was: Re: [PATCH RESEND] i2c: designware: use module_platform_driver) Wolfram Sang
2013-08-29 8:58 ` Linus Walleij
2013-08-29 10:55 ` zhangfei gao
2013-08-29 17:11 ` Linus Walleij
2013-08-30 5:48 ` Tony Lindgren
2013-08-30 6:29 ` zhangfei gao
2013-08-30 8:27 ` Tony Lindgren [this message]
2013-09-12 1:12 ` zhangfei gao
2013-10-08 2:46 ` zhangfei gao
2013-10-08 5:26 ` Wolfram Sang
2013-10-08 20:53 ` Wolfram Sang
2013-10-08 22:10 ` Tony Lindgren
2013-10-17 23:34 ` Tony Lindgren
2013-10-18 7:32 ` Wolfram Sang
2013-10-09 0:58 ` getting rid of subsys_initcall usage? zhangfei
2013-08-30 1:51 ` zhangfei
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