[PATCH 1/3] drm/i915/psr: Allow writing PSR2_MAN_TRK_CTL using DSB

[Jouni Högander]

Allow writing PSR2_MAN_TRK_CTL using DSB by using intel_de_write_dsb. Do
not check intel_dp->psr.lock being held when using DSB. This assertion
doesn't make sense as in case of using DSB the actual write happens later.

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 15b70a1127d4..2229e07e1fff 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -2355,20 +2355,24 @@ void intel_psr2_program_trans_man_trk_ctl(const struct intel_crtc_state *crtc_st
 					     crtc_state->uapi.encoder_mask) {
 		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
-		lockdep_assert_held(&intel_dp->psr.lock);
+		if (!crtc_state->use_dsb)
+			lockdep_assert_held(&intel_dp->psr.lock);
+
 		if (intel_dp->psr.psr2_sel_fetch_cff_enabled)
 			return;
 		break;
 	}
 
-	intel_de_write(display, PSR2_MAN_TRK_CTL(display, cpu_transcoder),
-		       crtc_state->psr2_man_track_ctl);
+	intel_de_write_dsb(display, crtc_state->dsb_commit,
+			   PSR2_MAN_TRK_CTL(display, cpu_transcoder),
+			   crtc_state->psr2_man_track_ctl);
 
 	if (!crtc_state->enable_psr2_su_region_et)
 		return;
 
-	intel_de_write(display, PIPE_SRCSZ_ERLY_TPT(crtc->pipe),
-		       crtc_state->pipe_srcsz_early_tpt);
+	intel_de_write_dsb(display, crtc_state->dsb_commit,
+			   PIPE_SRCSZ_ERLY_TPT(crtc->pipe),
+			   crtc_state->pipe_srcsz_early_tpt);
 }
 
 static void psr2_man_trk_ctl_calc(struct intel_crtc_state *crtc_state,
-- 
2.34.1