From 82ef04fb4c82542b3eda81cca461f0594ce9cd0b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 31 Jul 2008 17:02:40 +0900 Subject: 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 Signed-off-by: Jeff Garzik --- drivers/ata/sata_promise.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers/ata/sata_promise.c') diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c index 030665ba76b7..750d8cdc00cd 100644 --- a/drivers/ata/sata_promise.c +++ b/drivers/ata/sata_promise.c @@ -137,8 +137,8 @@ struct pdc_port_priv { dma_addr_t pkt_dma; }; -static int pdc_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); -static int pdc_sata_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val); +static int pdc_sata_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); +static int pdc_sata_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); static int pdc_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); static int pdc_common_port_start(struct ata_port *ap); static int pdc_sata_port_start(struct ata_port *ap); @@ -386,19 +386,21 @@ static int pdc_sata_cable_detect(struct ata_port *ap) return ATA_CBL_SATA; } -static int pdc_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) +static int pdc_sata_scr_read(struct ata_link *link, + unsigned int sc_reg, u32 *val) { if (sc_reg > SCR_CONTROL) return -EINVAL; - *val = readl(ap->ioaddr.scr_addr + (sc_reg * 4)); + *val = readl(link->ap->ioaddr.scr_addr + (sc_reg * 4)); return 0; } -static int pdc_sata_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) +static int pdc_sata_scr_write(struct ata_link *link, + unsigned int sc_reg, u32 val) { if (sc_reg > SCR_CONTROL) return -EINVAL; - writel(val, ap->ioaddr.scr_addr + (sc_reg * 4)); + writel(val, link->ap->ioaddr.scr_addr + (sc_reg * 4)); return 0; } @@ -731,7 +733,7 @@ static void pdc_error_intr(struct ata_port *ap, struct ata_queued_cmd *qc, if (sata_scr_valid(&ap->link)) { u32 serror; - pdc_sata_scr_read(ap, SCR_ERROR, &serror); + pdc_sata_scr_read(&ap->link, SCR_ERROR, &serror); ehi->serror |= serror; } -- cgit v1.2.3