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drm/tegra: hub: Add Tegra194 support

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The display hub integrated into Tegra194 is almost identical to the one
found on Tegra186. However, it doesn't support DSC (display stream
compression) so it isn't fully compatible.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2018-09-21 12:27:43 +02:00
parent 759d706f7c
commit 5725daaab5
3 changed files with 17 additions and 4 deletions
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19
drivers/gpu/drm/tegra/hub.c
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@@ -758,10 +758,12 @@ static int tegra_display_hub_probe(struct platform_device *pdev)
return err;
}
hub->clk_dsc = devm_clk_get(&pdev->dev, "dsc");
if (IS_ERR(hub->clk_dsc)) {
err = PTR_ERR(hub->clk_dsc);
return err;
if (hub->soc->supports_dsc) {
hub->clk_dsc = devm_clk_get(&pdev->dev, "dsc");
if (IS_ERR(hub->clk_dsc)) {
err = PTR_ERR(hub->clk_dsc);
return err;
}
}
hub->clk_hub = devm_clk_get(&pdev->dev, "hub");
@@ -890,10 +892,19 @@ static const struct dev_pm_ops tegra_display_hub_pm_ops = {
static const struct tegra_display_hub_soc tegra186_display_hub = {
.num_wgrps = 6,
.supports_dsc = true,
};
static const struct tegra_display_hub_soc tegra194_display_hub = {
.num_wgrps = 6,
.supports_dsc = false,
};
static const struct of_device_id tegra_display_hub_of_match[] = {
{
.compatible = "nvidia,tegra194-display",
.data = &tegra194_display_hub
}, {
.compatible = "nvidia,tegra186-display",
.data = &tegra186_display_hub
}, {