[PATCH 1/9] ata: ahci_tegra: Explicitly specify PMC instance to use

[Thierry Reding]

From: Thierry Reding <treding@xxxxxxxxxx>

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.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
 drivers/ata/ahci_tegra.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/ahci_tegra.c b/drivers/ata/ahci_tegra.c
index 44584eed6374..554f05e09f98 100644
--- a/drivers/ata/ahci_tegra.c
+++ b/drivers/ata/ahci_tegra.c
@@ -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);

-- 
2.52.0