diff options
| author | Pali Rohár <pali@kernel.org> | 2020-10-09 11:42:44 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-10-09 21:47:56 +0300 |
| commit | 45aefe3d2251e4e229d7662052739f96ad1d08d9 (patch) | |
| tree | 67b5e4d78935fbb8accd86bc3f145c153ca30534 /drivers/ata/libahci_platform.c | |
| parent | fd86194aca1f64df1c5fe2ed9e4c2a84f625ff48 (diff) | |
| download | linux-45aefe3d2251e4e229d7662052739f96ad1d08d9.tar.xz | |
ata: ahci: mvebu: Make SATA PHY optional for Armada 3720
Older ATF does not provide SMC call for SATA phy power on functionality and
therefore initialization of ahci_mvebu is failing when older version of ATF
is using. In this case phy_power_on() function returns -EOPNOTSUPP.
This patch adds a new hflag AHCI_HFLAG_IGN_NOTSUPP_POWER_ON which cause
that ahci_platform_enable_phys() would ignore -EOPNOTSUPP errors from
phy_power_on() call.
It fixes initialization of ahci_mvebu on Espressobin boards where is older
Marvell's Arm Trusted Firmware without SMC call for SATA phy power.
This is regression introduced in commit 8e18c8e58da64 ("arm64: dts: marvell:
armada-3720-espressobin: declare SATA PHY property") where SATA phy was
defined and therefore ahci_platform_enable_phys() on Espressobin started
failing.
Fixes: 8e18c8e58da64 ("arm64: dts: marvell: armada-3720-espressobin: declare SATA PHY property")
Signed-off-by: Pali Rohár <pali@kernel.org>
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Cc: <stable@vger.kernel.org> # 5.1+: ea17a0f153af: phy: marvell: comphy: Convert internal SMCC firmware return codes to errno
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ata/libahci_platform.c')
| -rw-r--r-- | drivers/ata/libahci_platform.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index 86261deeb4c5..de638dafce21 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -59,7 +59,7 @@ int ahci_platform_enable_phys(struct ahci_host_priv *hpriv) } rc = phy_power_on(hpriv->phys[i]); - if (rc) { + if (rc && !(rc == -EOPNOTSUPP && (hpriv->flags & AHCI_HFLAG_IGN_NOTSUPP_POWER_ON))) { phy_exit(hpriv->phys[i]); goto disable_phys; } |