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Re: [Patch 3/3]: [DRM/I915] : Sync the default modes for LVDS output device
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From: yakui_zhao <yak...@in...> - 2009-03-23 02:26:17
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On Sat, 2009-03-21 at 03:59 +0800, Eric Anholt wrote:
> On Fri, 2009-03-20 at 14:13 +0800, yakui_zhao wrote:
> > Subject: [DRM/I915]: Sync the default modes for LVDS output device
> > From: Zhao Yakui <yak...@in...>
> >
> > Sync the default modes for the LVDS output device
> > This covers:
> > Add the default modes for the LVDS output device.
> > The bit of edid->feature.msc indicates whether the display device is not
> > continous-frequency. And it is used to determine whether the default modes will
> > be added to the output device.
> > But for the LVDS output device the edid->feature.msc will always be set.Even
> > when there is no edid, the corresponding bit in the fake edid will be set.
> > In such case the default modes will be added to LVDS output device.
> > If not, the modes obtained by using KMS/UMS will be different.
>
> Similar whitespace concerns in this and the previous patch as the first,
> plus a couple of review comments below.
>
> > Signed-off-by: Zhao Yakui <yak...@in...>
> > ---
> > drivers/gpu/drm/i915/intel_lvds.c | 422 +++++++++++++++++++++++++++++++++++++-
> > 1 file changed, 412 insertions(+), 10 deletions(-)
> >
> > Index: linux-2.6/drivers/gpu/drm/i915/intel_lvds.c
> > ===================================================================
> > --- linux-2.6.orig/drivers/gpu/drm/i915/intel_lvds.c 2009-03-20 11:51:53.000000000 +0800
> > +++ linux-2.6/drivers/gpu/drm/i915/intel_lvds.c 2009-03-20 13:36:03.000000000 +0800
> > @@ -36,6 +36,381 @@
> > #include "intel_drv.h"
> > #include "i915_drm.h"
> > #include "i915_drv.h"
> > +/*
> > + * the default modes, which is based on the file of
> > + * xserver/xfree86/common/xf86DefModeSet.c.
> > + */
> > +static struct drm_display_mode default_modes[] = {
> > + /* 640x350@85Hz */
> > + { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
> > + 736, 832, 0, 350, 382, 385, 445, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 320x175@85Hz */
> > + { DRM_MODE("320x175", DRM_MODE_TYPE_DRIVER, 15750, 320, 336,
> > + 368, 416, 0, 175, 191, 192, 222, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 640x400@85Hz */
> > + { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
> > + 736, 832, 0, 400, 401, 405, 445, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 320x200@85Hz */
> > + { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 15750, 320, 336,
> > + 368, 416, 0, 200, 200, 202, 222, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 720x400@85Hz */
> > + { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
> > + 828, 936, 0, 400, 401, 405, 446, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 360x200@85Hz */
> > + { DRM_MODE("360x200", DRM_MODE_TYPE_DRIVER, 17750, 360, 378,
> > + 414, 468, 0, 200, 200, 202, 223, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 640x480@60Hz */
> > + { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 600, 656,
> > + 752, 800, 0, 480, 490, 492, 525, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 320x240@60Hz */
> > + { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 12587, 320, 328,
> > + 376, 400, 0, 240, 245, 246, 262, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 640x480@72Hz */
> > + { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
> > + 704, 832, 0, 480, 489, 492, 520, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 320x240@72Hz */
> > + { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 15750, 320, 332,
> > + 352, 416, 0, 240, 244, 246, 260, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 640x480@75Hz */
> > + { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
> > + 720, 840, 0, 480, 481, 484, 500, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 320x240@75Hz */
> > + { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 15750, 320, 328,
> > + 360, 420, 0, 240, 240, 242, 250, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 640x480@85Hz */
> > + { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
> > + 752, 832, 0, 480, 481, 484, 509, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 320x240@85Hz */
> > + { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 18000, 320, 348,
> > + 376, 416, 0, 240, 240, 242, 254, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 800x600@56Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
> > + 968, 1024, 0, 600, 601, 603, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 400x300@56Hz */
> > + { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 18000, 400, 412,
> > + 484, 512, 0, 300, 300, 301, 312, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 800x600@60Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
> > + 968, 1056, 0, 600, 601, 605, 628, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 400x300@60Hz */
> > + { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 20000, 400, 426,
> > + 484, 528, 0, 300, 300, 302, 314, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 800x600@72Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
> > + 976, 1040, 0, 600, 637, 643, 666, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 400x300@72Hz */
> > + { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 25000, 400, 428,
> > + 488, 520, 0, 300, 318, 321, 333, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 800x600@75Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
> > + 896, 1056, 0, 600, 601, 604, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 400x300@75Hz */
> > + { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 24750, 400, 408,
> > + 448, 528, 0, 300, 300, 302, 312, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 800x600@85Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56300, 800, 832,
> > + 896, 1048, 0, 600, 601, 604, 631, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 400x300@85Hz */
> > + { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 28150, 400, 416,
> > + 448, 524, 0, 300, 300, 302, 315, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1024x768@43Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
> > + 1208, 1264, 0, 768, 768, 776, 817, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 512x384@43Hz */
> > + { DRM_MODE("512x384", DRM_MODE_TYPE_DRIVER, 22450, 512, 516,
> > + 604, 632, 0, 384, 384, 388, 408, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1024x768@60Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
> > + 1184, 1344, 0, 768, 771, 777, 806, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 512x384@60Hz */
> > + { DRM_MODE("512x384", DRM_MODE_TYPE_DRIVER, 32500, 512, 524,
> > + 592, 672, 0, 384, 385, 388, 403, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1024x768@70Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1020, 1048,
> > + 1184, 1328, 0, 768, 771, 777, 806, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 512x384@70Hz */
> > + { DRM_MODE("512x384", DRM_MODE_TYPE_DRIVER, 37500, 510, 524,
> > + 592, 664, 0, 384, 385, 388, 403, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1024x768@75Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
> > + 1136, 1312, 0, 768, 769, 772, 800, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 512x384@75Hz */
> > + { DRM_MODE("512x384", DRM_MODE_TYPE_DRIVER, 39375, 512, 520,
> > + 568, 656, 0, 384, 384, 386, 400, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1024x768@85Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
> > + 1168, 1376, 0, 768, 769, 772, 808, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 512x384@85Hz */
> > + { DRM_MODE("512x384", DRM_MODE_TYPE_DRIVER, 47250, 512, 536,
> > + 584, 688, 0, 384, 384, 386, 404, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1152x864@75Hz */
> > + { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
> > + 1344, 1600, 0, 864, 865, 868, 900, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 576x432@85Hz */
> > + { DRM_MODE("576x432", DRM_MODE_TYPE_DRIVER, 54000, 576, 608,
> > + 672, 800, 0, 432, 432, 434, 450, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1280x960@60Hz */
> > + { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
> > + 1488, 1800, 0, 960, 961, 964, 1000, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 1280x960@60Hz */
> > + { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 540000, 640, 684,
> > + 744, 900, 0, 480, 480, 482, 500, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1280x960@85Hz */
> > + { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
> > + 1504, 1728, 0, 960, 961, 964, 1011, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 1280x960@85Hz */
> > + { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 74250, 640, 672,
> > + 752, 864, 0, 480, 480, 482, 505, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1280x1024@60Hz */
> > + { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
> > + 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 640x512@60Hz */
> > + { DRM_MODE("640x512", DRM_MODE_TYPE_DRIVER, 54000, 640, 664,
> > + 720, 744, 0, 512, 512, 514, 533, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1280x1024@75Hz */
> > + { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
> > + 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 640x512@75Hz */
> > + { DRM_MODE("640x512", DRM_MODE_TYPE_DRIVER, 67500, 640, 648,
> > + 720, 844, 0, 512, 512, 514, 533, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1280x1024@85Hz */
> > + { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
> > + 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 640x512@85Hz */
> > + { DRM_MODE("640x512", DRM_MODE_TYPE_DRIVER, 78750, 640, 672,
> > + 752, 864, 0, 512, 512, 514, 536, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1600x1200@60Hz */
> > + { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
> > + 1854, 2160, 0, 1200, 1201, 1205, 1250, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 800x600@60Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 81000, 800, 832,
> > + 928, 1080, 0, 600, 600, 602, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1600x1200@65Hz */
> > + { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
> > + 1854, 2160, 0, 1200, 1201, 1205, 1250, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 800x600@65Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 87750, 800, 832,
> > + 928, 1080, 0, 600, 600, 602, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1600x1200@70Hz */
> > + { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
> > + 1854, 2160, 0, 1200, 1201, 1205, 1250, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 800x600@70Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 94500, 800, 832,
> > + 928, 1080, 0, 600, 600, 602, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1600x1200@75Hz */
> > + { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
> > + 1854, 2160, 0, 1200, 1201, 1205, 1250, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 800x600@75Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 101250, 800, 832,
> > + 928, 1080, 0, 600, 600, 602, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1600x1200@85Hz */
> > + { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
> > + 1854, 2160, 0, 1200, 1201, 1205, 1250, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 800x600@85Hz */
> > + { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 114750, 800, 832,
> > + 928, 1080, 0, 600, 600, 602, 625, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1792x1344@60Hz */
> > + { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204800, 1792, 1920,
> > + 2104, 2448, 0, 1344, 1345, 1348, 1394, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 896x672@60Hz */
> > + { DRM_MODE("896x672", DRM_MODE_TYPE_DRIVER, 102400, 896, 960,
> > + 1052, 1224, 0, 672, 672, 674, 697, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1792x1344@75Hz */
> > + { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
> > + 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 896x672@75Hz */
> > + { DRM_MODE("896x672", DRM_MODE_TYPE_DRIVER, 130500, 896, 944,
> > + 1052, 1228, 0, 672, 672, 674, 708, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1856x1392@60Hz */
> > + { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218300, 1856, 1952,
> > + 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 928x696@60Hz */
> > + { DRM_MODE("928x696", DRM_MODE_TYPE_DRIVER, 109150, 928, 976,
> > + 1088, 1264, 0, 696, 696, 698, 719, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1856x1392@75Hz */
> > + { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1792, 1984,
> > + 2208, 2560, 0, 1392, 1393, 1396, 1500, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 928x696@75Hz */
> > + { DRM_MODE("928x696", DRM_MODE_TYPE_DRIVER, 144000, 896, 992,
> > + 1104, 1280, 0, 696, 696, 698, 750, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1920x1440@60Hz */
> > + { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
> > + 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 960x720@60Hz */
> > + { DRM_MODE("960x720", DRM_MODE_TYPE_DRIVER, 117000, 960, 1024,
> > + 1128, 1300, 0, 720, 720, 722, 750, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 1920x1440@75Hz */
> > + { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
> > + 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 960x720@75Hz */
> > + { DRM_MODE("960x720", DRM_MODE_TYPE_DRIVER, 148500, 960, 1032,
> > + 1144, 1320, 0, 720, 720, 722, 750, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* 832x624@75Hz (fix if the official/Apple spec is different) */
> > + { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
> > + 928, 1152, 0, 624, 625, 628, 667, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* 416x312@75Hz (fix if the official/Apple spec is different) */
> > + { DRM_MODE("416x312", DRM_MODE_TYPE_DRIVER, 28642, 416, 432,
> > + 464, 576, 0, 312, 312, 314, 333, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* vesa GTF 1400x1050@60Hz */
> > + { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 122200, 1400, 1488,
> > + 1640, 1880, 0, 1050, 1052, 1064, 1082, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* vesa GTF 700x525@60Hz */
> > + { DRM_MODE("700x525", DRM_MODE_TYPE_DRIVER, 61100, 700, 744,
> > + 820, 940, 0, 525, 526, 532, 541, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* vesa GTF 1400x1050@75Hz */
> > + { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 155800, 1400, 1464,
> > + 1784, 1912, 0, 1050, 1052, 1064, 1090, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* vesa GTF 700x525@75Hz */
> > + { DRM_MODE("700x525", DRM_MODE_TYPE_DRIVER, 77900, 700, 732,
> > + 892, 956, 0, 525, 526, 532, 545, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* vesa GTF 1920x1440@85Hz */
> > + { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 341350, 1920, 2072,
> > + 2288, 2656, 0, 1440, 1441, 1444, 1512, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* vesa GFT 960x720@85Hz */
> > + { DRM_MODE("960x720", DRM_MODE_TYPE_DRIVER, 170675, 960, 1036,
> > + 1144, 1328, 0, 720, 720, 722, 756, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* vesa GTF 2048x1536@60Hz */
> > + { DRM_MODE("2048x1536", DRM_MODE_TYPE_DRIVER, 266950, 2048, 2200,
> > + 2424, 2800, 0, 1536, 1537, 1540, 1589, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* vesa GTF 1024x768@60Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 133475, 1024, 1100,
> > + 1212, 1400, 0, 768, 768, 770, 794, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* vesa GTF 2048x1536@75Hz */
> > + { DRM_MODE("2048x1536", DRM_MODE_TYPE_DRIVER, 340480, 2048, 2216,
> > + 2440, 2832, 0, 1536, 1537, 1540, 1603, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* vesa GTF 1024x768@75Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 170240, 1024, 1108,
> > + 1220, 1416, 0, 768, 768, 770, 801, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > + /* vesa GTF 2048x1536@85Hz */
> > + { DRM_MODE("2048x1536", DRM_MODE_TYPE_DRIVER, 388040, 2048, 2216,
> > + 2440, 2832, 0, 1536, 1537, 1540, 1612, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
> > + /* vesa GTF 1024x768@85Hz */
> > + { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 194020, 1024, 1108,
> > + 1220, 1416, 0, 768, 768, 770, 806, 0,
> > + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
> > + DRM_MODE_FLAG_DBLSCAN) },
> > +};
>
> This modes list looks like the EDID established modes plus a few extra
> GTF modes. Why are we statically putting this list in intel_lvds.c
> instead of accessing the established modes plus cooking up a few GTF
> modes on the fly?
The above default modes are copied from the file of xf86DefModeSet.c. It
includes the VESA default mode and the VESA extra timing mode.
And the vesa default mode seems more than the EDID established modes.
At the same time the doublescan modes are also included.
In the UMS mode this is added to the mode list by the xserver according
to the flag of edid->feature.msc bit. And this is applied to all the
output devices with the EDID.(For the LVDS device the fake EDID will be
constructed even when no EDID is obtained. And the default modes will be
added to mode list.)
In the KMS mode I don't know whether the default modes should be added
to the mode list for other output device with the EDID besides the LVDS.
So the default modes are added to the mode list only for LVDS device.
>
> > /*
> > * the following four scaling options are defined.
> > @@ -481,6 +856,22 @@
> > }
> >
> > /**
> > + * Add the default mode to .
> > + */
>
> Sentence fragment?
>
> > +static int lvds_add_default_modes(struct drm_connector *connector)
> > +{
> > + int i, num_modes = 0;
> > + struct drm_device *dev = connector->dev;
> > + num_modes = sizeof(default_modes)/sizeof(struct drm_display_mode);
> > + for (i = 0; i < num_modes; i++) {
> > + struct drm_display_mode *mode;
> > +
> > + mode = drm_mode_duplicate(dev, &default_modes[i]);
> > + drm_mode_probed_add(connector, mode);
> > + }
> > + return num_modes;
> > +}
> > +/**
> > * Return the list of DDC modes if available, or the BIOS fixed mode otherwise.
> > */
> > static int intel_lvds_get_modes(struct drm_connector *connector)
> > @@ -488,13 +879,24 @@
> > struct drm_device *dev = connector->dev;
> > struct intel_output *intel_output = to_intel_output(connector);
> > struct drm_i915_private *dev_priv = dev->dev_private;
> > - int ret = 0;
> > -
> > - ret = intel_ddc_get_modes(intel_output);
> > -
> > - if (ret)
> > - return ret;
> > + int ddc_ret = 0, ret = 0, fixed_ret = 0;
> >
> > + ddc_ret = intel_ddc_get_modes(intel_output);
>
> Could we rename ret to "mode_count" or something? int ret is usually "0
> or a -ESOMETHING", while here it's a count of modes we've added to the
> output.
>
> > + /*
> > + * When there exists the EDID info, the bit of feature.msc will always
> > + * be set.
> > + * It seems that bit of feature.msc will also be set even when the
> > + * bogus edid_mon is constructed in 2D driver.
> > + * So in such case the default mode will be added.
> > + */
> > + if (ddc_ret) {
> > + /*
> > + * If the mode can be parsed from the EDID info, we will try
> > + * to add the default mode
> > + */
> > + fixed_ret = 0;
> > + goto add_default_mode;
> > + }
>
> Please just put the non-DDC path following this goto under if (!ddc_ret)
> {} and don't do this goto.
>
> > /* Didn't get an EDID, so
> > * Set wide sync ranges so we get all modes
> > * handed to valid_mode for checking
> > @@ -509,11 +911,11 @@
> >
> > mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode);
> > drm_mode_probed_add(connector, mode);
> > -
> > - return 1;
> > + fixed_ret = 1;
> > }
> > -
> > - return 0;
> > +add_default_mode:
> > + ret = lvds_add_default_modes(connector);
> > + return ddc_ret + fixed_ret + ret;
> > }
> >
> > /**
> >
> >
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