Revert "drm/msm/dpu: add support for clk and bw scaling for display"

This is causing multiple armv7 missing do_div() errors, so lets drop it
for now.

This reverts commit 04d9044f6c577948609c03b4e33b8fbc8b87c4b1.

Cc: Kalyan Thota <kalyan_t@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

1 files changed, 1 insertions, 36 deletions

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index a5da7aacddba..b8615d4fe8a3 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -303,28 +303,6 @@ static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms)
 	return 0;
 }
 
-static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms)
-{
-	struct icc_path *path0;
-	struct icc_path *path1;
-	struct drm_device *dev = dpu_kms->dev;
-
-	path0 = of_icc_get(dev->dev, "mdp0-mem");
-	path1 = of_icc_get(dev->dev, "mdp1-mem");
-
-	if (IS_ERR_OR_NULL(path0))
-		return PTR_ERR_OR_ZERO(path0);
-
-	dpu_kms->path[0] = path0;
-	dpu_kms->num_paths = 1;
-
-	if (!IS_ERR_OR_NULL(path1)) {
-		dpu_kms->path[1] = path1;
-		dpu_kms->num_paths++;
-	}
-	return 0;
-}
-
 static int dpu_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
 {
 	return dpu_crtc_vblank(crtc, true);
@@ -994,9 +972,6 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
 
 	dpu_vbif_init_memtypes(dpu_kms);
 
-	if (of_device_is_compatible(dev->dev->of_node, "qcom,sc7180-mdss"))
-		dpu_kms_parse_data_bus_icc_path(dpu_kms);
-
 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
 
 	return 0;
@@ -1102,7 +1077,7 @@ static int dpu_dev_remove(struct platform_device *pdev)
 
 static int __maybe_unused dpu_runtime_suspend(struct device *dev)
 {
-	int i, rc = -1;
+	int rc = -1;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
 	struct dss_module_power *mp = &dpu_kms->mp;
@@ -1111,9 +1086,6 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev)
 	if (rc)
 		DPU_ERROR("clock disable failed rc:%d\n", rc);
 
-	for (i = 0; i < dpu_kms->num_paths; i++)
-		icc_set_bw(dpu_kms->path[i], 0, 0);
-
 	return rc;
 }
 
@@ -1125,15 +1097,8 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev)
 	struct drm_encoder *encoder;
 	struct drm_device *ddev;
 	struct dss_module_power *mp = &dpu_kms->mp;
-	int i;
 
 	ddev = dpu_kms->dev;
-
-	/* Min vote of BW is required before turning on AXI clk */
-	for (i = 0; i < dpu_kms->num_paths; i++)
-		icc_set_bw(dpu_kms->path[i], 0,
-			dpu_kms->catalog->perf.min_dram_ib);
-
 	rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true);
 	if (rc) {
 		DPU_ERROR("clock enable failed rc:%d\n", rc);