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Commit 2c883136 authored by Chuanxiao Dong's avatar Chuanxiao Dong Committed by Zhenyu Wang
Browse files

drm/i915/gvt: add more resolutions in virtual edid 



The current virtual edid can only support the resolution up
to 1024x768. Update the virtual edid so that can support more
resoltions. With this new virtual edid, resolution can
be up to 1920x1200.

V2: add detailed modeline description in edid code comments

Signed-off-by: default avatarChuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 18566aca

drivers/gpu/drm/i915/gvt/display.c

+12 −7
Original line number Diff line number Diff line
@@ -83,7 +83,7 @@ static int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe) 
	return 0;

}



/* EDID with 1024x768 as its resolution */

/* EDID with 1920x1200 as its resolution */

static unsigned char virtual_dp_monitor_edid[] = {

	/*Header*/

	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
@@ -97,11 +97,16 @@ static unsigned char virtual_dp_monitor_edid[] = { 
	0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54,

	/* Established Timings: maximum resolution is 1024x768 */

	0x21, 0x08, 0x00,

	/* Standard Timings. All invalid */

	0x00, 0xc0, 0x00, 0xc0, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00,

	0x00, 0x40, 0x00, 0x00, 0x00, 0x01,

	/* 18 Byte Data Blocks 1: invalid */

	0x00, 0x00, 0x80, 0xa0, 0x70, 0xb0,

	/*

	 * Standard Timings.

	 * below new resolutions can be supported:

	 * 1920x1080, 1280x720, 1280x960, 1280x1024,

	 * 1440x900, 1600x1200, 1680x1050

	 */

	0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00,

	0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01,

	/* 18 Byte Data Blocks 1: max resolution is 1920x1200 */

	0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0,

	0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a,

	/* 18 Byte Data Blocks 2: invalid */

	0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a,
@@ -115,7 +120,7 @@ static unsigned char virtual_dp_monitor_edid[] = { 
	/* Extension Block Count */

	0x00,

	/* Checksum */

	0xef,

	0x45,

};



#define DPCD_HEADER_SIZE        0xb