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From fc4570783b4552459a97dd67e20043eeb87ad09a Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 16 Mar 2022 09:51:44 +0100
Subject: [PATCH] Revert "drm/vc4: Increase the core clock based on HVS
load"
This reverts commit 02c8543cc6940f8201e9beb601bd56421d911e83.
---
drivers/gpu/drm/vc4/vc4_drv.h | 1 -
drivers/gpu/drm/vc4/vc4_kms.c | 13 +------------
2 files changed, 1 insertion(+), 13 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -326,7 +326,6 @@ struct vc4_hvs {
u32 __iomem *dlist;
struct clk *core_clk;
- struct clk_request *core_req;
/* Memory manager for CRTCs to allocate space in the display
* list. Units are dwords.
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -402,11 +402,6 @@ static void vc4_atomic_commit_tail(struc
500000000, state_rate);
core_req = clk_request_start(hvs->core_clk, core_rate);
- /*
- * And remove the previous one based on the HVS
- * requirements if any.
- */
- clk_request_done(hvs->core_req);
}
drm_atomic_helper_commit_modeset_disables(dev, state);
@@ -436,14 +431,8 @@ static void vc4_atomic_commit_tail(struc
drm_dbg(dev, "Running the core clock at %lu Hz\n",
new_hvs_state->core_clock_rate);
- /*
- * Request a clock rate based on the current HVS
- * requirements.
- */
- hvs->core_req = clk_request_start(hvs->core_clk,
- new_hvs_state->core_clock_rate);
+ clk_set_min_rate(hvs->core_clk, new_hvs_state->core_clock_rate);
- /* And drop the temporary request */
clk_request_done(core_req);
drm_dbg(dev, "Core clock actual rate: %lu Hz\n",
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