Bug 105321 - [GLK] *ERROR* GPIO index X request failed
Summary: [GLK] *ERROR* GPIO index X request failed
Status: CLOSED NOTABUG
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-03-02 01:16 UTC by Luis Botello
Modified: 2018-03-02 18:42 UTC (History)
1 user (show)

See Also:
i915 platform: GLK
i915 features: display/DSI

Attachments
dmesg (251.46 KB, text/plain)
2018-03-02 01:16 UTC, Luis Botello 		no flags Details
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Description Luis Botello 2018-03-02 01:16:44 UTC 
Created attachment 137742 [details]
dmesg

==Bug detailed description==
--------------------------------------------------
Some error messages related to GPIO index "x" are shown in dmesg while changing resolution on MIPI DSI panel.

==Steps to reproduce==
--------------------------------------------------
1. Install latest drm-tip kernel
2. Change resolution on MIPI DSI panel
3. Check dmesg

==Actual results==
--------------------------------------------------
Resolution is changed properly but some error messages are seen on dmesg.

======================================
             Software
======================================
kernel version              : 4.16.0-rc3-drm-tip-ww9-commit-d8a0797+
architecture                : x86_64
os version                  : Ubuntu 17.10

======================================
             Hardware
======================================
platform                   : Geminilake
motherboard model          : Geminilake
cpu information            : Intel(R) Pentium(R) Silver N5000 CPU @ 1.10GHz
gpu card                   : Intel Corporation Device 3184 (rev 03) (prog-if 00 [VGA controller])
cpu thread                 : 4
cpu core                   : 4
displays connected         : DSI-1
Comment 1 Mika Kahola 2018-03-02 08:00:38 UTC 
This issues has surfaced every now and then. In your kernel config, is pincontrol for GPIO enabled?

CONFIG_PINCTRL_GEMINILAKE=y
Comment 2 Luis Botello 2018-03-02 18:41:42 UTC 
working as expected if that config is set

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