Mark, Thanks for the patch, it worked fine for me. I am facing one more problem now. I am setting boot_on flag in the constraints structure for all my regulators as they are enabled when the system is powered on. But still when I call regulator_disable() after doing a _get() on it, the call fails saying " unbalanced disables for supply". Then I checked the same repository again and found commit 38db9f31d6dc6147b87692b3b5a8a32de1a6cbe6 (regulator: Allow boot_on regulators to be disabled by clients). But still, it is not allowing me to disable the regulator as soon as I do a get on it. Later, I found out that in set_machine_constraints(),ops->enable() is being called if the boot_on flag is set. What is the purpose of doing this? Since the regulator is already enabled, why we are calling the ops->enable() to do the same again? In my opinion, regulator_enable() should have been called to let the framework increase its usage count so that the user can disable the same as and when required. Thanks and Regards, Anuj Aggarwal > -----Original Message----- > From: Mark Brown [mailto:broonie@xxxxxxxxxxxxx] > Sent: Thursday, February 26, 2009 7:35 PM > To: Aggarwal, Anuj > Cc: linux-omap@xxxxxxxxxxxxxxx > Subject: Re: Problems while designing TPS65023 regulator driver > > On Thu, Feb 26, 2009 at 02:41:54PM +0530, Aggarwal, Anuj wrote: > > > Since all the five regulators can be controlled using a single i2c > > device, I made a single i2c_board_info structure in my platform > > specific file and put all the regulator_init_data information there: > > This is very common - most of the devices that have multiple regulators > also have some other subsystems on them (eg, an RTC or a watchdog) and > use a core driver in drivers/mfd with the individual functions of the > device as child platform drivers so this hasn't come up much. > > > Now, the problem is in the tps_65023_probe function. Since it will be > > called only once as there is only one i2c device, I have to register > > all the regulators in that only. But I am not able to communicate the > > same to the regulator core layer. Inside the regulator_register(), > > variable init_data, which equals to dev->platform_data, is always > > pointing to the first array member, which is coming from the evm > > specific file. And it fails to register my second regulator instance, > > set_consumer_device_supply() specifically failing for the second > > iteration. Because of this, the probe function fails. > > > How should I handle this scenario? Am I missing something in my implementation? > > Use -next or the regulator git at: > > git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 > > There the init data is passed as a parameter to regulator_register() > rather than being read from the platform data so the problem goes away. > The relevant commit is 8ec143c801ff0514ce92e69aa2f7bd48e73b9baa. > > [Please fix your mail client to wrap at 80 columns - currently you have > no line breaks in paragraphs which makes your mails a bit hard to read > and reply to.] -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
