[PATCH 449/459] drm/amd/display: Use macro for invalid OPP ID

[Alex Deucher]

From: Wesley Chalmers <Wesley.Chalmers at amd.com>

[WHY]
This is meant to make it clearer that 0xf is not a valid OPP ID, and
that code making use of OPP IDs should not accept this value.

Signed-off-by: Wesley Chalmers <Wesley.Chalmers at amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu at amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c         | 4 ++--
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 4 ++--
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c        | 4 ++--
 drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h              | 2 ++
 5 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
index 3f9ad09769b1..a48d314011a9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
@@ -63,7 +63,7 @@ void hubp1_set_blank(struct hubp *hubp, bool blank)
 		}
 
 		hubp->mpcc_id = 0xf;
-		hubp->opp_id = 0xf;
+		hubp->opp_id = OPP_ID_INVALID;
 	}
 }
 
@@ -1253,7 +1253,7 @@ void dcn10_hubp_construct(
 	hubp1->hubp_shift = hubp_shift;
 	hubp1->hubp_mask = hubp_mask;
 	hubp1->base.inst = inst;
-	hubp1->base.opp_id = 0xf;
+	hubp1->base.opp_id = OPP_ID_INVALID;
 	hubp1->base.mpcc_id = 0xf;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index a2d3c4fdc805..0b1503de0f7a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1085,7 +1085,7 @@ static void dcn10_init_pipes(struct dc *dc, struct dc_state *context)
 		pipe_ctx->plane_res.dpp = dpp;
 		pipe_ctx->plane_res.mpcc_inst = dpp->inst;
 		hubp->mpcc_id = dpp->inst;
-		hubp->opp_id = 0xf;
+		hubp->opp_id = OPP_ID_INVALID;
 		hubp->power_gated = false;
 
 		dc->res_pool->opps[i]->mpc_tree_params.opp_id = dc->res_pool->opps[i]->inst;
@@ -2436,7 +2436,7 @@ static void dcn10_apply_ctx_for_surface(
 		if (pipe_ctx->plane_state && !old_pipe_ctx->plane_state) {
 			if (old_pipe_ctx->stream_res.tg == tg &&
 			    old_pipe_ctx->plane_res.hubp &&
-			    old_pipe_ctx->plane_res.hubp->opp_id != 0xf)
+			    old_pipe_ctx->plane_res.hubp->opp_id != OPP_ID_INVALID)
 				dcn10_disable_plane(dc, old_pipe_ctx);
 		}
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
index 82738f126517..dcba2c5326b2 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
@@ -694,7 +694,7 @@ bool hubp2_construct(
 	hubp2->hubp_shift = hubp_shift;
 	hubp2->hubp_mask = hubp_mask;
 	hubp2->base.inst = inst;
-	hubp2->base.opp_id = 0xf;
+	hubp2->base.opp_id = OPP_ID_INVALID;
 	hubp2->base.mpcc_id = 0xf;
 
 	return true;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index 2cbffe2809b6..d55b15fbfe99 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -605,7 +605,7 @@ static void dcn20_init_hw(struct dc *dc)
 		pipe_ctx->plane_res.dpp = dpp;
 		pipe_ctx->plane_res.mpcc_inst = dpp->inst;
 		hubp->mpcc_id = dpp->inst;
-		hubp->opp_id = 0xf;
+		hubp->opp_id = OPP_ID_INVALID;
 		hubp->power_gated = false;
 		pipe_ctx->stream_res.opp = NULL;
 
@@ -1307,7 +1307,7 @@ static void dcn20_apply_ctx_for_surface(
 		if (pipe_ctx->plane_state && !old_pipe_ctx->plane_state) {
 			if (old_pipe_ctx->stream_res.tg == tg &&
 			    old_pipe_ctx->plane_res.hubp &&
-			    old_pipe_ctx->plane_res.hubp->opp_id != 0xf)
+			    old_pipe_ctx->plane_res.hubp->opp_id != OPP_ID_INVALID)
 				dcn20_disable_plane(dc, old_pipe_ctx);
 		}
 
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h
index fa98c96d0046..342477822dc0 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h
@@ -28,6 +28,8 @@
 
 #include "mem_input.h"
 
+#define OPP_ID_INVALID 0xf
+
 
 enum cursor_pitch {
 	CURSOR_PITCH_64_PIXELS = 0,
-- 
2.20.1