soc/tegra: pmc: Don't power-up XUSB power-domains (3bb2f843) · Commits · 戴 / test

Now that the Tegra xHCI driver manages the XUSB power-domains itself, remove the code to power-up the power-domains used by the xHCI device from the PMC driver on boot. Signed-off-by:

Jon Hunter <jonathanh@nvidia.com> Acked-by:

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

Thierry Reding <treding@nvidia.com>

drivers/soc/tegra/pmc.c

+0 −16

Original line number	Diff line number	Diff line
		@@ -847,22 +847,6 @@ static void tegra_powergate_add(struct tegra_pmc pmc, struct device_node np)
		goto remove_resets;
		}

		/*
		* FIXME: If XHCI is enabled for Tegra, then power-up the XUSB
		* host and super-speed partitions. Once the XHCI driver
		* manages the partitions itself this code can be removed. Note
		* that we don't register these partitions with the genpd core
		* to avoid it from powering down the partitions as they appear
		* to be unused.
		*/
		if (IS_ENABLED(CONFIG_USB_XHCI_TEGRA) &&
		(id == TEGRA_POWERGATE_XUSBA \|\| id == TEGRA_POWERGATE_XUSBC)) {
		if (off)
		WARN_ON(tegra_powergate_power_up(pg, true));

		goto remove_resets;
		}

		err = pm_genpd_init(&pg->genpd, NULL, off);
		if (err < 0) {
		pr_err("failed to initialise PM domain %pOFn: %d\n", np,

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