drm/msm/sde: update proper error message for rm failure

Resource manager failure just prints the error message but
it does not indicate cause for it. This patch prints error
message for each cause to help debugging.

Change-Id: I1f5ab716d09b5f29913e2679b1c8d800bc76b8a8
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

1 files changed, 22 insertions, 8 deletions

diff --git a/drivers/gpu/drm/msm/sde/sde_rm.c b/drivers/gpu/drm/msm/sde/sde_rm.c
index 37db9eec8dc9..b17ac828d110 100644
--- a/drivers/gpu/drm/msm/sde/sde_rm.c
+++ b/drivers/gpu/drm/msm/sde/sde_rm.c
@@ -342,6 +342,7 @@ int sde_rm_init(struct sde_rm *rm,
 	if (IS_ERR_OR_NULL(rm->hw_mdp)) {
 		rc = PTR_ERR(rm->hw_mdp);
 		rm->hw_mdp = NULL;
+		SDE_ERROR("failed: mdp hw not available\n");
 		goto fail;
 	}
 
@@ -356,8 +357,10 @@ int sde_rm_init(struct sde_rm *rm,
 
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_LM,
 				cat->mixer[i].id, &cat->mixer[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: lm hw not available\n");
 			goto fail;
+		}
 
 		if (!rm->lm_max_width) {
 			rm->lm_max_width = lm->sblk->maxwidth;
@@ -375,15 +378,19 @@ int sde_rm_init(struct sde_rm *rm,
 	for (i = 0; i < cat->dspp_count; i++) {
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_DSPP,
 				cat->dspp[i].id, &cat->dspp[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: dspp hw not available\n");
 			goto fail;
+		}
 	}
 
 	for (i = 0; i < cat->pingpong_count; i++) {
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_PINGPONG,
 				cat->pingpong[i].id, &cat->pingpong[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: pp hw not available\n");
 			goto fail;
+		}
 	}
 
 	for (i = 0; i < cat->intf_count; i++) {
@@ -394,35 +401,42 @@ int sde_rm_init(struct sde_rm *rm,
 
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_INTF,
 				cat->intf[i].id, &cat->intf[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: intf hw not available\n");
 			goto fail;
+		}
 	}
 
 	for (i = 0; i < cat->wb_count; i++) {
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_WB,
 				cat->wb[i].id, &cat->wb[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: wb hw not available\n");
 			goto fail;
+		}
 	}
 
 	for (i = 0; i < cat->ctl_count; i++) {
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_CTL,
 				cat->ctl[i].id, &cat->ctl[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: ctl hw not available\n");
 			goto fail;
+		}
 	}
 
 	for (i = 0; i < cat->cdm_count; i++) {
 		rc = _sde_rm_hw_blk_create(rm, cat, mmio, SDE_HW_BLK_CDM,
 				cat->cdm[i].id, &cat->cdm[i]);
-		if (rc)
+		if (rc) {
+			SDE_ERROR("failed: cdm hw not available\n");
 			goto fail;
+		}
 	}
 
 	return 0;
 
 fail:
-	SDE_ERROR("failed to init sde kms resources\n");
 	sde_rm_destroy(rm);
 
 	return rc;