drm/tegra: Bump VIC/NVDEC clock rates to Fmax

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>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/tegra/nvdec.c b/drivers/gpu/drm/tegra/nvdec.c
index c3b6fe7..48c90e2 100644 (file)
--- 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 c02010f..dec5e56 100644 (file)
--- 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)) {