From: Helmut Grohne <h.grohne@intenta.de>
To: Shubhrajyoti Datta <shubhrajyoti.datta@gmail.com>
Cc: "linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Subject: Re: [PATCH 4.6 69/81] gpio: zynq: initialize clock even without CONFIG_PM
Date: Tue, 2 Aug 2016 12:58:05 +0200 [thread overview]
Message-ID: <20160802105805.GA25787@laureti-dev> (raw)
In-Reply-To: <CAKfKVtGedpeOYYaxO4JMoxHeLep5o8C4md1quAsUVQo0vvEtAQ@mail.gmail.com>
On Tue, Aug 02, 2016 at 10:59:05AM +0200, Shubhrajyoti Datta wrote:
> I feel that if you can print the clk enable count in at boot things
> could be easy
> to understand.
I verifed this via two ways now (holds both for CONFIG_PM=y and
CONFIG_PM=n):
* zynq_gpio_runtime_resume is not called (as expected given my
analysis). I simply added a printk to check that.
* After boot, /sys/kernel/debug/clk/gpio_aper/clk_enable_count also
confirms my analysis by yielding "1".
Thus I conclude that there there is no bug. Neither in theory nor in
practise.
Helmut
prev parent reply other threads:[~2016-08-02 10:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20160622223743.240652686@linuxfoundation.org>
[not found] ` <20160622223746.777833462@linuxfoundation.org>
[not found] ` <CAKfKVtEFF=PvZ62N-Re9BX4iq+pCK5qchbp7N3TworkpRkAZZQ@mail.gmail.com>
2016-07-21 10:57 ` [PATCH 4.6 69/81] gpio: zynq: initialize clock even without CONFIG_PM Helmut Grohne
2016-08-02 8:59 ` Shubhrajyoti Datta
2016-08-02 10:58 ` Helmut Grohne [this message]
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