Commit a9cf5e85 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

ahci: separate out ahci_do_softreset() 



Separate out ahci_do_softreset() which takes @pmp as its last
argument.  This will be used to implement ahci_pmp_softreset().

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 91c4a2e0

drivers/ata/ahci.c

+10 −4
Original line number Diff line number Diff line
@@ -1023,8 +1023,8 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp, 
	return 0;

}



static int ahci_softreset(struct ata_port *ap, unsigned int *class,

			  unsigned long deadline)

static int ahci_do_softreset(struct ata_port *ap, unsigned int *class,

			     int pmp, unsigned long deadline)

{

	const char *reason = NULL;

	unsigned long now, msecs;
@@ -1054,7 +1054,7 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class, 
		msecs = jiffies_to_msecs(deadline - now);



	tf.ctl |= ATA_SRST;

	if (ahci_exec_polled_cmd(ap, 0, &tf, 0,

	if (ahci_exec_polled_cmd(ap, pmp, &tf, 0,

				 AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY, msecs)) {

		rc = -EIO;

		reason = "1st FIS failed";
@@ -1066,7 +1066,7 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class, 


	/* issue the second D2H Register FIS */

	tf.ctl &= ~ATA_SRST;

	ahci_exec_polled_cmd(ap, 0, &tf, 0, 0, 0);

	ahci_exec_polled_cmd(ap, pmp, &tf, 0, 0, 0);



	/* spec mandates ">= 2ms" before checking status.

	 * We wait 150ms, because that was the magic delay used for
@@ -1094,6 +1094,12 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class, 
	return rc;

}



static int ahci_softreset(struct ata_port *ap, unsigned int *class,

			  unsigned long deadline)

{

	return ahci_do_softreset(ap, class, 0, deadline);

}



static int ahci_hardreset(struct ata_port *ap, unsigned int *class,

			  unsigned long deadline)

{

CRA Git | Maintained and supported by SUSTech CRA and CCSE