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ata: ahci_brcm: Add back regulators management

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[ Upstream commit 10340f8d7b6dd54e616339c8ccb2f397133ebea0 ]

While reworking the resources management and departing from using
ahci_platform_enable_resources() which did not allow a proper step
separation like we need, we unfortunately lost the ability to control
AHCI regulators. This broke some Broadcom STB systems that do expect
regulators to be turned on to link up with attached hard drives.

Fixes: c0cdf2ac4b ("ata: ahci_brcm: Fix AHCI resources management")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Florian Fainelli 2021-01-29 10:28:45 -08:00 committed by Greg Kroah-Hartman
parent 61a1f0ad45
commit 9e61730083
1 changed files with 13 additions and 1 deletions
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14
drivers/ata/ahci_brcm.c
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@ -377,6 +377,10 @@ static int __maybe_unused brcm_ahci_resume(struct device *dev)
if (ret)
return ret;
ret = ahci_platform_enable_regulators(hpriv);
if (ret)
goto out_disable_clks;
brcm_sata_init(priv);
brcm_sata_phys_enable(priv);
brcm_sata_alpm_init(hpriv);
@ -406,6 +410,8 @@ static int __maybe_unused brcm_ahci_resume(struct device *dev)
ahci_platform_disable_phys(hpriv);
out_disable_phys:
brcm_sata_phys_disable(priv);
ahci_platform_disable_regulators(hpriv);
out_disable_clks:
ahci_platform_disable_clks(hpriv);
return ret;
}
@ -490,6 +496,10 @@ static int brcm_ahci_probe(struct platform_device *pdev)
if (ret)
goto out_reset;
ret = ahci_platform_enable_regulators(hpriv);
if (ret)
goto out_disable_clks;
/* Must be first so as to configure endianness including that
* of the standard AHCI register space.
*/
@ -499,7 +509,7 @@ static int brcm_ahci_probe(struct platform_device *pdev)
priv->port_mask = brcm_ahci_get_portmask(hpriv, priv);
if (!priv->port_mask) {
ret = -ENODEV;
goto out_disable_clks;
goto out_disable_regulators;
}
/* Must be done before ahci_platform_enable_phys() */
@ -524,6 +534,8 @@ static int brcm_ahci_probe(struct platform_device *pdev)
ahci_platform_disable_phys(hpriv);
out_disable_phys:
brcm_sata_phys_disable(priv);
out_disable_regulators:
ahci_platform_disable_regulators(hpriv);
out_disable_clks:
ahci_platform_disable_clks(hpriv);
out_reset: