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ata: ahci_tegra: Explicitly specify PMC instance to use

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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: Damien Le Moal <dlemoal@kernel.org>
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 16:25:29 +01:00
parent 254f49634e
commit 64e609f929
1 changed files with 12 additions and 5 deletions
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17
drivers/ata/ahci_tegra.c
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@@ -175,6 +175,7 @@ struct tegra_ahci_priv {
struct reset_control *sata_cold_rst;
/* Needs special handling, cannot use ahci_platform */
struct clk *sata_clk;
struct tegra_pmc *pmc;
struct regulator_bulk_data *supplies;
const struct tegra_ahci_soc *soc;
};
@@ -246,9 +247,10 @@ static int tegra_ahci_power_on(struct ahci_host_priv *hpriv)
return ret;
if (!tegra->pdev->dev.pm_domain) {
ret = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_SATA,
tegra->sata_clk,
tegra->sata_rst);
ret = tegra_pmc_powergate_sequence_power_up(tegra->pmc,
TEGRA_POWERGATE_SATA,
tegra->sata_clk,
tegra->sata_rst);
if (ret)
goto disable_regulators;
}
@@ -269,7 +271,7 @@ static int tegra_ahci_power_on(struct ahci_host_priv *hpriv)
clk_disable_unprepare(tegra->sata_clk);
if (!tegra->pdev->dev.pm_domain)
tegra_powergate_power_off(TEGRA_POWERGATE_SATA);
tegra_pmc_powergate_power_off(tegra->pmc, TEGRA_POWERGATE_SATA);
disable_regulators:
regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
@@ -289,7 +291,7 @@ static void tegra_ahci_power_off(struct ahci_host_priv *hpriv)
clk_disable_unprepare(tegra->sata_clk);
if (!tegra->pdev->dev.pm_domain)
tegra_powergate_power_off(TEGRA_POWERGATE_SATA);
tegra_pmc_powergate_power_off(tegra->pmc, TEGRA_POWERGATE_SATA);
regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
}
@@ -571,6 +573,11 @@ static int tegra_ahci_probe(struct platform_device *pdev)
return PTR_ERR(tegra->sata_clk);
}
tegra->pmc = devm_tegra_pmc_get(&pdev->dev);
if (IS_ERR(tegra->pmc))
return dev_err_probe(&pdev->dev, PTR_ERR(tegra->pmc),
"failed to get PMC\n");
tegra->supplies = devm_kcalloc(&pdev->dev,
tegra->soc->num_supplies,
sizeof(*tegra->supplies), GFP_KERNEL);