lkml.org 
[lkml]   [2020]   [Sep]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/3] gpiolib: generalize GPIO line names property
On Tue, Sep 15, 2020 at 04:12:28PM +0300, Andy Shevchenko wrote:
> On Tue, Sep 15, 2020 at 02:01:56PM +0200, Anders Roxell wrote:
> > On Tue, 8 Sep 2020 at 18:40, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> > >
> > > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > >
> > > I initially sent this as part of the gpio-mockup overhaul but since
> > > these patches are indepentent and the work on gpio-mockup may become
> > > more complicated - I'm sending these separately.
> > >
> > > The only change is adding additional property helpers to count strings
> > > in array.
> > >
> > > Bartosz Golaszewski (3):
> > > device: property: add helpers to count items in string arrays
> > > gpiolib: generalize devprop_gpiochip_set_names() for device properties
> > > gpiolib: unexport devprop_gpiochip_set_names()
>
> Ha-ha, OF unittest is of_node centric. definitely there is no backed device.
>
> Bart, it seems we are stuck with fwnode interface.

Hmm... There is a platform device. So, it means that it fails along these
lines:
return IS_ENABLED(CONFIG_OF) && dev->of_node ? &dev->of_node->fwnode : dev->fwnode;
so, who should set fwnode for of_node?

> > [ 6186.379069][ T1] device_property_read_string_array+0x40/0xa0
> > [ 6186.381741][ T1] devprop_gpiochip_set_names.isra.0+0x4c/0x200
> > [ 6186.384394][ T1] gpiochip_add_data_with_key+0x75c/0xf80
> > [ 6186.386876][ T1] unittest_gpio_probe+0xf4/0x1e0
>
> > [ 6186.433241][ T1] Unable to handle kernel read from unreadable
> > memory at virtual address 0000000000000570
> > [ 6186.437207][ T1] Mem abort info:
> > [ 6186.438639][ T1] ESR = 0x96000004
> > [ 6186.440536][ T1] EC = 0x25: DABT (current EL), IL = 32 bits
> > [ 6186.442791][ T1] SET = 0, FnV = 0
> > [ 6186.444660][ T1] EA = 0, S1PTW = 0
> > [ 6186.446233][ T1] Data abort info:
> > [ 6186.447938][ T1] ISV = 0, ISS = 0x00000004
> > [ 6186.449749][ T1] CM = 0, WnR = 0
> > [ 6186.451222][ T1] [0000000000000570] user address but active_mm is swapper
> > [ 6186.454000][ T1] Internal error: Oops: 96000004 [#1] PREEMPT SMP
> > [ 6186.456422][ T1] Modules linked in:
> > [ 6186.458232][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B
> > W 5.9.0-rc5-next-20200915-00006-g104c8fe4916b #1
> > [ 6186.462833][ T1] Hardware name: linux,dummy-virt (DT)
> > [ 6186.465170][ T1] pstate: 60400005 (nZCv daif +PAN -UAO BTYPE=--)
> > [ 6186.467910][ T1] pc : device_property_read_string_array+0x40/0xa0
> > [ 6186.470653][ T1] lr : device_property_read_string_array+0x40/0xa0
>
> --
> With Best Regards,
> Andy Shevchenko
>
>

--
With Best Regards,
Andy Shevchenko


\
 
 \ /
  Last update: 2020-09-15 15:40    [W:0.109 / U:27.852 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site