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)) {