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| author | Kefeng Wang <kefeng.wang@linaro.org> | 2014-05-14 08:13:40 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-05-14 19:07:09 +0200 |
| commit | 888d91a08fa8e2be4cb0eef1e5736ef68b8f77f0 (patch) | |
| tree | 6d94d11eeb4f56442acfd21b8f6ca42ecb6e19d0 /drivers/ata | |
| parent | ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers (diff) | |
| download | linux-888d91a08fa8e2be4cb0eef1e5736ef68b8f77f0.tar.xz linux-888d91a08fa8e2be4cb0eef1e5736ef68b8f77f0.zip | |
ata: ahci: append new hflag AHCI_HFLAG_NO_FBS
Append AHCI_HFLAG_NO_FBS to force turning off FBS flag.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/ahci.h | 1 | ||||
| -rw-r--r-- | drivers/ata/libahci.c | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index 51af275b3388..60db49b95001 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -235,6 +235,7 @@ enum { port start (wait until error-handling stage) */ AHCI_HFLAG_MULTI_MSI = (1 << 16), /* multiple PCI MSIs */ + AHCI_HFLAG_NO_FBS = (1 << 17), /* no FBS */ /* ap->flags bits */ diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 6bd4f660b4e1..e1cf859876fe 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -457,6 +457,11 @@ void ahci_save_initial_config(struct device *dev, cap |= HOST_CAP_FBS; } + if ((cap & HOST_CAP_FBS) && (hpriv->flags & AHCI_HFLAG_NO_FBS)) { + dev_info(dev, "controller can't do FBS, turning off CAP_FBS\n"); + cap &= ~HOST_CAP_FBS; + } + if (force_port_map && port_map != force_port_map) { dev_info(dev, "forcing port_map 0x%x -> 0x%x\n", port_map, force_port_map); |