Re: [PATCH] pinctrl: freescale: avoid overwriting pin config when freeing GPIO
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2016-09-30 02:22:53
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From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2016-09-30 02:22:53
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On 29-09-16, 15:16, Vladimir Zapolskiy wrote:
If you look at the top I agree that this solution may be only one platform specific, but it fixes the broken driver of i.MX I2C bus controller.
Yeah, I saw that..
Why do you get an impression that it looks like a hack?
Because we have to reorder things to make it work on a platform. This may break things on other platforms and we don't know about it yet.
Why pinctrl_select_state() is not done in gpio_request_one()? Because the first function gets pin mux/config setting and the second does not. How do you intend to get pin mux/config setting in gpio_request_one()?
Lets see what Linus has to say on this..
Anyway I don't see any problems in pinctrl or gpio subsystems, the bugs must be addressed and fixed in i2c.
I think it can be a gpio driver specific thing as well and not really subsystem level one. -- viresh