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[v2,5/8] drm/msm/dpu: enable INTF TE operations only when supported by HW

Message ID 20230730003518.349197-6-dmitry.baryshkov@linaro.org
State Superseded
Headers show
Series drm/msm/dpu: drop DPU_INTF_TE and DPU_PINGPONG_TE | expand

Commit Message

Dmitry Baryshkov July 30, 2023, 12:35 a.m. UTC 
The DPU_INTF_TE bit is set for all INTF blocks on DPU >= 5.0, however
only INTF_1 and INTF_2 actually support tearing control (both are
INTF_DSI). Rather than trying to limit the DPU_INTF_TE feature bit to
those two INTF instances, check for the major && INTF type.

Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
index dd67686f5403..95ff2f5ebbaa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -558,7 +558,10 @@  struct dpu_hw_intf *dpu_hw_intf_init(const struct dpu_intf_cfg *cfg,
 	if (cfg->features & BIT(DPU_INTF_INPUT_CTRL))
 		c->ops.bind_pingpong_blk = dpu_hw_intf_bind_pingpong_blk;
 
-	if (cfg->features & BIT(DPU_INTF_TE)) {
+	/* INTF TE is only for DSI interfaces */
+	if (mdss_rev->core_major_ver >= 5 && cfg->type == INTF_DSI) {
+		WARN_ON(!cfg->intr_tear_rd_ptr);
+
 		c->ops.enable_tearcheck = dpu_hw_intf_enable_te;
 		c->ops.disable_tearcheck = dpu_hw_intf_disable_te;
 		c->ops.connect_external_te = dpu_hw_intf_connect_external_te;