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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

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* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  sata_mv: shorten register names
  sata_mv: workaround errata SATA#13
  sata_mv: cosmetic renames
  sata_mv: workaround errata SATA#26
  sata_mv: workaround errata PCI#7
  sata_mv: replace 0x1f with ATA_PIO4 (v2)
  sata_mv: fix irq mask races
  sata_mv: revert SoC irq breakage
  libata: ahci enclosure management bios workaround
  ata: Add TRIM infrastructure
  ata_piix: VGN-BX297XP wants the controller power up on suspend
  libata: Remove some redundant casts from pata_octeon_cf.c
  pata_artop: typo
This commit is contained in:
Linus Torvalds
2009-04-07 08:53:02 -07:00
parent 0e26da0f22 cae5a29d3c
commit 132ea5e9aa
6 changed files with 344 additions and 216 deletions
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17
drivers/ata/ahci.c
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@ -78,6 +78,7 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
ssize_t size);
#define MAX_SLOTS 8
#define MAX_RETRY 15
enum {
AHCI_PCI_BAR = 5,
@ -1115,6 +1116,8 @@ static void ahci_start_port(struct ata_port *ap)
struct ahci_port_priv *pp = ap->private_data;
struct ata_link *link;
struct ahci_em_priv *emp;
ssize_t rc;
int i;
/* enable FIS reception */
ahci_start_fis_rx(ap);
@ -1126,7 +1129,17 @@ static void ahci_start_port(struct ata_port *ap)
if (ap->flags & ATA_FLAG_EM) {
ata_for_each_link(link, ap, EDGE) {
emp = &pp->em_priv[link->pmp];
ahci_transmit_led_message(ap, emp->led_state, 4);
/* EM Transmit bit maybe busy during init */
for (i = 0; i < MAX_RETRY; i++) {
rc = ahci_transmit_led_message(ap,
emp->led_state,
4);
if (rc == -EBUSY)
udelay(100);
else
break;
}
}
}
@ -1331,7 +1344,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
em_ctl = readl(mmio + HOST_EM_CTL);
if (em_ctl & EM_CTL_TM) {
spin_unlock_irqrestore(ap->lock, flags);
return -EINVAL;
return -EBUSY;
}
/*