diff options
| author | Tejun Heo <tj@kernel.org> | 2008-07-31 12:02:40 +0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-09-29 08:22:28 +0400 |
| commit | 82ef04fb4c82542b3eda81cca461f0594ce9cd0b (patch) | |
| tree | e513df5ad8dc9f7400830bfc8786afb6bec90fb6 /drivers/ata/sata_sis.c | |
| parent | 6ef190cc92e33565accff6a320f0e7d90480bfe7 (diff) | |
| download | linux-82ef04fb4c82542b3eda81cca461f0594ce9cd0b.tar.xz | |
libata: make SCR access ops per-link
Logically, SCR access ops should take @link; however, there was no
compelling reason to convert all SCR access ops when adding @link
abstraction as there's one-to-one mapping between a port and a non-PMP
link. However, that assumption won't hold anymore with the scheduled
addition of slave link.
Make SCR access ops per-link.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/sata_sis.c')
| -rw-r--r-- | drivers/ata/sata_sis.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c index 1010b3069bd5..9c43b4e7c4a6 100644 --- a/drivers/ata/sata_sis.c +++ b/drivers/ata/sata_sis.c @@ -64,8 +64,8 @@ enum { }; static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); -static int sis_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); -static int sis_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val); +static int sis_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); +static int sis_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); static const struct pci_device_id sis_pci_tbl[] = { { PCI_VDEVICE(SI, 0x0180), sis_180 }, /* SiS 964/180 */ @@ -134,10 +134,11 @@ static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg) return addr; } -static u32 sis_scr_cfg_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) +static u32 sis_scr_cfg_read(struct ata_link *link, + unsigned int sc_reg, u32 *val) { - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg); + struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); + unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg); u32 val2 = 0; u8 pmr; @@ -158,10 +159,11 @@ static u32 sis_scr_cfg_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) return 0; } -static int sis_scr_cfg_write(struct ata_port *ap, unsigned int sc_reg, u32 val) +static int sis_scr_cfg_write(struct ata_link *link, + unsigned int sc_reg, u32 val) { - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg); + struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); + unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg); u8 pmr; if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */ @@ -178,8 +180,9 @@ static int sis_scr_cfg_write(struct ata_port *ap, unsigned int sc_reg, u32 val) return 0; } -static int sis_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) +static int sis_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) { + struct ata_port *ap = link->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 pmr; @@ -187,7 +190,7 @@ static int sis_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) return -EINVAL; if (ap->flags & SIS_FLAG_CFGSCR) - return sis_scr_cfg_read(ap, sc_reg, val); + return sis_scr_cfg_read(link, sc_reg, val); pci_read_config_byte(pdev, SIS_PMR, &pmr); @@ -202,8 +205,9 @@ static int sis_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) return 0; } -static int sis_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) +static int sis_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) { + struct ata_port *ap = link->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 pmr; @@ -213,7 +217,7 @@ static int sis_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) pci_read_config_byte(pdev, SIS_PMR, &pmr); if (ap->flags & SIS_FLAG_CFGSCR) - return sis_scr_cfg_write(ap, sc_reg, val); + return sis_scr_cfg_write(link, sc_reg, val); else { iowrite32(val, ap->ioaddr.scr_addr + (sc_reg * 4)); if ((pdev->device == 0x0182) || (pdev->device == 0x0183) || |