'\" t
.\"     Title: drm_helper_resume_force_mode
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: DRM Core
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "DRM_HELPER_RESUME_FO" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "DRM Core"
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.SH "NAME"
drm_helper_resume_force_mode \- force\-restore mode setting configuration
.SH "SYNOPSIS"
.HP \w'void\ drm_helper_resume_force_mode('u
.BI "void drm_helper_resume_force_mode(struct\ drm_device\ *\ " "dev" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
drm_device which should be restored
.RE
.SH "DESCRIPTION"
.PP
Drivers which use the mode setting helpers can use this function to force\-restore the mode setting configuration e\&.g\&. on resume or when something else might have trampled over the hw state (like some overzealous old BIOSen tended to do)\&.
.PP
This helper doesn\*(Aqt provide a error return value since restoring the old config should never fail due to resource allocation issues since the driver has successfully set the restored configuration already\&. Hence this should boil down to the equivalent of a few dpms on calls, which also don\*(Aqt provide an error code\&.
.PP
Drivers where simply restoring an old configuration again might fail (e\&.g\&. due to slight differences in allocating shared resources when the configuration is restored in a different order than when userspace set it up) need to use their own restore logic\&.
.SH "AUTHORS"
.PP
\fBJesse Barnes\fR <\&jesse.barnes@intel.com\&>
.br
Intel Corporation, 
	    
	  
.RS 4
Initial version
.RE
.PP
\fBLaurent Pinchart\fR <\&laurent.pinchart@ideasonboard.com\&>
.br
Ideas on board SPRL, 
	    
	  
.RS 4
Driver internals
.RE
.PP
\fBDaniel Vetter\fR <\&daniel.vetter@ffwll.ch\&>
.br
Intel Corporation, 
	    
	  
.RS 4
Contributions all over the place
.RE
.SH "COPYRIGHT"
.br