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drm/i915/dp: Do not set master_trans bit in bitmak if INVALID_TRANSCODER

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In the port sync mode, for the master crtc, the master_transcoder is INVALID.
In that case since its value is -1, do not set the bit in the bitmask.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: d0eed1545f ("drm/i915: Fix post-fastset modeset check for port sync")
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123002415.31478-1-manasi.d.navare@intel.com
This commit is contained in:
Manasi Navare 2020-01-22 16:24:14 -08:00
parent 231946109e
commit 8c47eb8667
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/display/intel_display.c
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@ -14649,8 +14649,10 @@ static int intel_atomic_check(struct drm_device *dev,
}
if (is_trans_port_sync_mode(new_crtc_state)) {
u8 trans = new_crtc_state->sync_mode_slaves_mask |
BIT(new_crtc_state->master_transcoder);
u8 trans = new_crtc_state->sync_mode_slaves_mask;
if (new_crtc_state->master_transcoder != INVALID_TRANSCODER)
trans |= BIT(new_crtc_state->master_transcoder);
if (intel_cpu_transcoders_need_modeset(state, trans)) {
new_crtc_state->uapi.mode_changed = true;