diff options
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index f1764ec5818b..fb7cf0e796f6 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -458,6 +458,15 @@ static const struct drm_display_mode drm_dmt_modes[] = { DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, }; +/* + * These more or less come from the DMT spec. The 720x400 modes are + * inferred from historical 80x25 practice. The 640x480@67 and 832x624@75 + * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode + * should be 1152x870, again for the Mac, but instead we use the x864 DMT + * mode. + * + * The DMT modes have been fact-checked; the rest are mild guesses. + */ static const struct drm_display_mode edid_est_modes[] = { { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, 968, 1056, 0, 600, 601, 605, 628, 0, @@ -560,7 +569,7 @@ static const struct minimode est3_modes[] = { { 1600, 1200, 75, 0 }, { 1600, 1200, 85, 0 }, { 1792, 1344, 60, 0 }, - { 1792, 1344, 85, 0 }, + { 1792, 1344, 75, 0 }, { 1856, 1392, 60, 0 }, { 1856, 1392, 75, 0 }, { 1920, 1200, 60, 1 }, @@ -1320,7 +1329,7 @@ static u32 edid_get_quirks(struct edid *edid) } #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay) -#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh)) +#define MODE_REFRESH_DIFF(c,t) (abs((c) - (t))) /** * edid_fixup_preferred - set preferred modes based on quirk list @@ -1335,6 +1344,7 @@ static void edid_fixup_preferred(struct drm_connector *connector, { struct drm_display_mode *t, *cur_mode, *preferred_mode; int target_refresh = 0; + int cur_vrefresh, preferred_vrefresh; if (list_empty(&connector->probed_modes)) return; @@ -1357,10 +1367,14 @@ static void edid_fixup_preferred(struct drm_connector *connector, if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode)) preferred_mode = cur_mode; + cur_vrefresh = cur_mode->vrefresh ? + cur_mode->vrefresh : drm_mode_vrefresh(cur_mode); + preferred_vrefresh = preferred_mode->vrefresh ? + preferred_mode->vrefresh : drm_mode_vrefresh(preferred_mode); /* At a given size, try to get closest to target refresh */ if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) && - MODE_REFRESH_DIFF(cur_mode, target_refresh) < - MODE_REFRESH_DIFF(preferred_mode, target_refresh)) { + MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) < + MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) { preferred_mode = cur_mode; } } @@ -2080,7 +2094,7 @@ drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing) u8 *est = ((u8 *)timing) + 5; for (i = 0; i < 6; i++) { - for (j = 7; j > 0; j--) { + for (j = 7; j >= 0; j--) { m = (i * 8) + (7 - j); if (m >= ARRAY_SIZE(est3_modes)) break; @@ -3473,6 +3487,19 @@ int drm_add_modes_noedid(struct drm_connector *connector, } EXPORT_SYMBOL(drm_add_modes_noedid); +void drm_set_preferred_mode(struct drm_connector *connector, + int hpref, int vpref) +{ + struct drm_display_mode *mode; + + list_for_each_entry(mode, &connector->probed_modes, head) { + if (drm_mode_width(mode) == hpref && + drm_mode_height(mode) == vpref) + mode->type |= DRM_MODE_TYPE_PREFERRED; + } +} +EXPORT_SYMBOL(drm_set_preferred_mode); + /** * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with * data from a DRM display mode |
