From: Mikko Perttunen <mperttunen@nvidia.com>
To: thierry.reding@gmail.com, jonathanh@nvidia.com
Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org,
Mikko Perttunen <mperttunen@nvidia.com>
Subject: [PATCH] drm/tegra: Bump VIC/NVDEC clock rates to Fmax
Date: Thu, 16 Sep 2021 18:09:20 +0300 [thread overview]
Message-ID: <20210916150920.2136180-1-mperttunen@nvidia.com> (raw)
To get full performance out of these engines, bump their clock rates
to maximum. In the future we may want something smarter but this
should be fine for now.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
drivers/gpu/drm/tegra/nvdec.c | 6 ++++++
drivers/gpu/drm/tegra/vic.c | 6 ++++++
2 files changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/tegra/nvdec.c b/drivers/gpu/drm/tegra/nvdec.c
index c3b6fe7fb454..48c90e26e90a 100644
--- a/drivers/gpu/drm/tegra/nvdec.c
+++ b/drivers/gpu/drm/tegra/nvdec.c
@@ -374,6 +374,12 @@ static int nvdec_probe(struct platform_device *pdev)
return PTR_ERR(nvdec->clk);
}
+ err = clk_set_rate(nvdec->clk, ULONG_MAX);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to set clock rate\n");
+ return err;
+ }
+
err = of_property_read_u32(dev->of_node, "nvidia,host1x-class", &host_class);
if (err < 0)
host_class = HOST1X_CLASS_NVDEC;
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c
index c02010ff2b7f..dec5e56f6780 100644
--- a/drivers/gpu/drm/tegra/vic.c
+++ b/drivers/gpu/drm/tegra/vic.c
@@ -441,6 +441,12 @@ static int vic_probe(struct platform_device *pdev)
return PTR_ERR(vic->clk);
}
+ err = clk_set_rate(vic->clk, ULONG_MAX);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to set clock rate\n");
+ return err;
+ }
+
if (!dev->pm_domain) {
vic->rst = devm_reset_control_get(dev, "vic");
if (IS_ERR(vic->rst)) {
--
2.32.0
next reply other threads:[~2021-09-16 15:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-16 15:09 Mikko Perttunen [this message]
2021-10-06 18:08 ` [PATCH] drm/tegra: Bump VIC/NVDEC clock rates to Fmax Thierry Reding
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