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openmptcprouter/6.12/target/linux/bcm27xx/patches-6.12/950-0697-drm-v3d-Correct-clock-settng-calls-to-new-APIs.patch
Ycarus (Yannick Chabanois) bdb9b0046f Add bcm27xx 6.12 test support
2024-12-20 14:17:26 +01:00

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1.4 KiB
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From c7d876495ffad298d7f5fa252000c80fd4fd1b74 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Mon, 9 Dec 2024 17:58:48 +0000
Subject: [PATCH 697/697] drm/v3d: Correct clock settng calls to new APIs
There was a report that 6.12 kernel has lower benchmark
scores than 6.6.
I can confirm, and found it started with 6.8 kernel
which moved some code into a new file (v3d_submit.c)
and in two places the change to the clock api were missed.
The effect of the bug is the v3d clock sometimes
unwantedly drops to a lower rate.
With this patch the benchmark scores are good again.
Fixes: 86963038cb0c0ba99dad14665ca92936ca723f89
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
drivers/gpu/drm/v3d/v3d_submit.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/v3d/v3d_submit.c
+++ b/drivers/gpu/drm/v3d/v3d_submit.c
@@ -18,7 +18,7 @@ v3d_clock_down_work(struct work_struct *
container_of(work, struct v3d_dev, clk_down_work.work);
int ret;
- ret = clk_set_rate(v3d->clk, v3d->clk_down_rate);
+ ret = clk_set_min_rate(v3d->clk, v3d->clk_down_rate);
v3d->clk_up = false;
WARN_ON_ONCE(ret != 0);
}
@@ -32,7 +32,7 @@ v3d_clock_up_get(struct v3d_dev *v3d)
if (!v3d->clk_up) {
int ret;
- ret = clk_set_rate(v3d->clk, v3d->clk_up_rate);
+ ret = clk_set_min_rate(v3d->clk, v3d->clk_up_rate);
WARN_ON_ONCE(ret != 0);
v3d->clk_up = true;
}