linux-kernel - [PATCH v1] ata: ahci_tegra: call tegra_powergate_power

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Date:   Thu, 8 Apr 2021 09:40:43 -0700
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <skomatineni@...dia.com>, <axboe@...nel.dk>,
        <thierry.reding@...il.com>, <digetx@...il.com>
CC:     <jonathanh@...dia.com>, <linux-ide@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v1] ata: ahci_tegra: call tegra_powergate_power_off only when PM domain is not present

This patch adds a check on present of PM domain and calls legacy power
domain API tegra_powergate_power_off() only when PM domain is not present.

This is a follow-up patch to Tegra186 AHCI support patch series
https://lore.kernel.org/patchwork/cover/1408752/

Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>

---
 drivers/ata/ahci_tegra.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/ahci_tegra.c b/drivers/ata/ahci_tegra.c
index 56612af..bd484dd 100644
--- a/drivers/ata/ahci_tegra.c
+++ b/drivers/ata/ahci_tegra.c
@@ -287,7 +287,8 @@ static void tegra_ahci_power_off(struct ahci_host_priv *hpriv)
 	reset_control_assert(tegra->sata_cold_rst);
 
 	clk_disable_unprepare(tegra->sata_clk);
-	tegra_powergate_power_off(TEGRA_POWERGATE_SATA);
+	if (!tegra->pdev->dev.pm_domain)
+		tegra_powergate_power_off(TEGRA_POWERGATE_SATA);
 
 	regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
 }
-- 
2.7.4