[PATCH] drm/i915/gvt: changed DDI mode emulation type

[Zhenyu Wang]

On 2018.06.21 14:33:43 +0800, Xiaolin Zhang wrote:
> changed gvt display transcode DDI mode from DP_SST to
> DVI to address below calltrace issue during guest booting
> up which is caused by zero dotclock initial value with DP_SST
> mode. transcode DVI mode emulation also align with native with DP
> connection.
> 
> [drm:drm_calc_timestamping_constants]
> ERROR crtc 41: Can't calculate constants, dotclock = 0!
> 
> WARNING: at drivers/gpu/drm/drm_vblank.c:620
> drm_calc_vbltimestamp_from_scanoutpos
> 
> Call Trace:
> ? drm_calc_timestamping_constants+0x144/0x150 [drm]
> drm_get_last_vbltimestamp+0x54/0x90 [drm]
> drm_reset_vblank_timestamp+0x59/0xd0 [drm]
> drm_crtc_vblank_on+0x7b/0xd0 [drm]
> intel_modeset_setup_hw_state+0xb67/0xfd0 [i915]
> ? gen2_read32+0x110/0x110 [i915]
> ? drm_modeset_lock+0x30/0xa0 [drm]
> intel_modeset_init+0x794/0x19d0 [i915]
> ? intel_setup_gmbus+0x232/0x2e0 [i915]
> i915_driver_load+0xb4a/0xf40 [i915]

applied this one, thanks!

-- 
Open Source Technology Center, Intel ltd.

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