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 c3b6fe7fb4547b8e01f923caf0e1406f4f823e5c..48c90e26e90a49b5ad81daf5a2c334e4133ab23e 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 c02010ff2b7f28da26ea7d489597e9084e00c562..dec5e56f67804a8f14d5d464c09aa9eec3884c9d 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)) {