[PATCH 4/7] drm/msm/dpu: enable INTF TE operations only when supported by HW

[Dmitry Baryshkov]

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. Rather than
trying to fix the DPU_INTF_TE, check for the presense of the
corresponding interrupt line.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 7ca772791a73..8abdf9553f3b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -557,7 +557,7 @@ struct dpu_hw_intf *dpu_hw_intf_init(const struct dpu_intf_cfg *cfg,
 	c->ops.setup_misr = dpu_hw_intf_setup_misr;
 	c->ops.collect_misr = dpu_hw_intf_collect_misr;
 
-	if (cfg->features & BIT(DPU_INTF_TE)) {
+	if (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;
-- 
2.39.2