github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

usb: xhci: tegra: Explicitly specify PMC instance to use

Browse Source 
Currently the kernel relies on a global variable to reference the PMC
context. Use an explicit lookup for the PMC and pass that to the public
PMC APIs.

Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2025-02-03 16:31:14 +01:00
parent 5f726aeb50
commit 258cff9857
1 changed files with 26 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/usb/host/xhci-tegra.c
View File

@ -292,6 +292,7 @@ struct tegra_xusb {
struct reset_control *host_rst;
struct reset_control *ss_rst;
struct tegra_pmc *pmc;
struct device *genpd_dev_host;
struct device *genpd_dev_ss;
bool use_genpd;
@ -1188,20 +1189,23 @@ static int tegra_xusb_unpowergate_partitions(struct tegra_xusb *tegra)
return rc;
}
} else {
rc = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_XUSBA,
tegra->ss_clk,
tegra->ss_rst);
rc = tegra_pmc_powergate_sequence_power_up(tegra->pmc,
TEGRA_POWERGATE_XUSBA,
tegra->ss_clk,
tegra->ss_rst);
if (rc < 0) {
dev_err(dev, "failed to enable XUSB SS partition\n");
return rc;
}
rc = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_XUSBC,
tegra->host_clk,
tegra->host_rst);
rc = tegra_pmc_powergate_sequence_power_up(tegra->pmc,
TEGRA_POWERGATE_XUSBC,
tegra->host_clk,
tegra->host_rst);
if (rc < 0) {
dev_err(dev, "failed to enable XUSB Host partition\n");
tegra_powergate_power_off(TEGRA_POWERGATE_XUSBA);
tegra_pmc_powergate_power_off(tegra->pmc,
TEGRA_POWERGATE_XUSBA);
return rc;
}
}
@ -1228,18 +1232,21 @@ static int tegra_xusb_powergate_partitions(struct tegra_xusb *tegra)
return rc;
}
} else {
rc = tegra_powergate_power_off(TEGRA_POWERGATE_XUSBC);
rc = tegra_pmc_powergate_power_off(tegra->pmc,
TEGRA_POWERGATE_XUSBC);
if (rc < 0) {
dev_err(dev, "failed to disable XUSB Host partition\n");
return rc;
}
rc = tegra_powergate_power_off(TEGRA_POWERGATE_XUSBA);
rc = tegra_pmc_powergate_power_off(tegra->pmc,
TEGRA_POWERGATE_XUSBA);
if (rc < 0) {
dev_err(dev, "failed to disable XUSB SS partition\n");
tegra_powergate_sequence_power_up(TEGRA_POWERGATE_XUSBC,
tegra->host_clk,
tegra->host_rst);
tegra_pmc_powergate_sequence_power_up(tegra->pmc,
TEGRA_POWERGATE_XUSBC,
tegra->host_clk,
tegra->host_rst);
return rc;
}
}
@ -1733,6 +1740,13 @@ static int tegra_xusb_probe(struct platform_device *pdev)
err);
goto put_padctl;
}
tegra->pmc = devm_tegra_pmc_get(&pdev->dev);
if (IS_ERR(tegra->pmc)) {
err = dev_err_probe(&pdev->dev, PTR_ERR(tegra->pmc),
"failed to get PMC\n");
goto put_padctl;
}
} else {
err = tegra_xusb_powerdomain_init(&pdev->dev, tegra);
if (err)