ASUS X SERIES X553MA-BING-SX451B does not boot anymore

ASUS X SERIES X553MA-BING-SX451B does not boot anymore

[Casal Quinteiro, Ignacio]

Hey guys,

Just wanted to point you out to the bug report: https://bugzilla.kernel
.org/show_bug.cgi?id=196819

---

Kernel 4.10.15-200.fc25 boots as expected, instead the following new
kernels do not:
 - 4.11.12-200.fc25
 - 4.12.8-200.fc25
 - 4.12.8-300.fc26

How reproducible:

If I try to boot the laptop nothing happens, it stays black. Instead
with the kernel 4.10.15-200.fc25 the fedora logo appears and boots
without any problems.

If it matters the laptop has an intel celeron and after bisecting I've
found that the culprit is the following commit:

282a4e4ce5f99e3c166abac929498885a711e19f is the first bad commit
commit 282a4e4ce5f99e3c166abac929498885a711e19f
Author: Irina Tirdea <irina.tirdea@intel.com>
Date:   Mon Jan 23 12:07:44 2017 -0600

    platform/x86: Enable Atom PMC platform clocks
   
    The BayTrail and CherryTrail platforms provide platform clocks
    through their Power Management Controller (PMC).
   
    The SoC supports up to 6 clocks (PMC_PLT_CLK[0..5]) with a
    frequency of either 19.2 MHz (PLL) or 25 MHz (XTAL) for BayTrail
    and a frequency of 19.2 MHz (XTAL) for CherryTrail. These clocks
    are available for general system use, where appropriate. For
example,
    the usage for platform clocks suggested in the datasheet is the
    following:
      PLT_CLK[0..2] - Camera
      PLT_CLK[3] - Audio Codec
      PLT_CLK[4] -
      PLT_CLK[5] - COMMs
   
    Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
    Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.int
el.com>
    Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>


For reference here you have also the downstream bug report I've filed:
https://bugzilla.redhat.com/show_bug.cgi?id=1486005

Re: ASUS X SERIES X553MA-BING-SX451B does not boot anymore

[Andy Shevchenko]

On Mon, 2017-09-04 at 09:05 +0000, Casal Quinteiro, Ignacio wrote:
> Hey guys,
> 
> Just wanted to point you out to the bug report: https://bugzilla.kerne
> l
> .org/show_bug.cgi?id=196819

Thank you for a report, I updated it to notify Pierre-Louis. Let's
continue there.

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

Re: ASUS X SERIES X553MA-BING-SX451B does not boot anymore

[Pierre-Louis Bossart]

On 9/4/17 4:39 AM, Andy Shevchenko wrote:
> On Mon, 2017-09-04 at 09:05 +0000, Casal Quinteiro, Ignacio wrote:
>> Hey guys,
>>
>> Just wanted to point you out to the bug report: https://bugzilla.kerne
>> l
>> .org/show_bug.cgi?id=196819
> 
> Thank you for a report, I updated it to notify Pierre-Louis. Let's
> continue there.
> 

You may need the follow-up patch that doesn't set the clocks if the 
firmware already does so. it's in 4.13rc-6, maybe it should be applied 
for 4.10..12-stable. I don't have a git tree with me but it's easy to 
find, it's the last patch to drivers/clk/x86/clk-pmc-atom.c