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path: root/drivers/ata/sata_qstor.c
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Diffstat (limited to 'drivers/ata/sata_qstor.c')
-rw-r--r--drivers/ata/sata_qstor.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
index 9ab554da89bf..c8f9242e7f44 100644
--- a/drivers/ata/sata_qstor.c
+++ b/drivers/ata/sata_qstor.c
@@ -111,8 +111,8 @@ struct qs_port_priv {
111 qs_state_t state; 111 qs_state_t state;
112}; 112};
113 113
114static u32 qs_scr_read (struct ata_port *ap, unsigned int sc_reg); 114static int qs_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
115static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); 115static int qs_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
116static int qs_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); 116static int qs_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
117static int qs_port_start(struct ata_port *ap); 117static int qs_port_start(struct ata_port *ap);
118static void qs_host_stop(struct ata_host *host); 118static void qs_host_stop(struct ata_host *host);
@@ -255,18 +255,20 @@ static void qs_eng_timeout(struct ata_port *ap)
255 ata_eng_timeout(ap); 255 ata_eng_timeout(ap);
256} 256}
257 257
258static u32 qs_scr_read (struct ata_port *ap, unsigned int sc_reg) 258static int qs_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
259{ 259{
260 if (sc_reg > SCR_CONTROL) 260 if (sc_reg > SCR_CONTROL)
261 return ~0U; 261 return -EINVAL;
262 return readl(ap->ioaddr.scr_addr + (sc_reg * 8)); 262 *val = readl(ap->ioaddr.scr_addr + (sc_reg * 8));
263 return 0;
263} 264}
264 265
265static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) 266static int qs_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
266{ 267{
267 if (sc_reg > SCR_CONTROL) 268 if (sc_reg > SCR_CONTROL)
268 return; 269 return -EINVAL;
269 writel(val, ap->ioaddr.scr_addr + (sc_reg * 8)); 270 writel(val, ap->ioaddr.scr_addr + (sc_reg * 8));
271 return 0;
270} 272}
271 273
272static unsigned int qs_fill_sg(struct ata_queued_cmd *qc) 274static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
@@ -337,7 +339,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
337 buf[28] = dflags; 339 buf[28] = dflags;
338 340
339 /* frame information structure (FIS) */ 341 /* frame information structure (FIS) */
340 ata_tf_to_fis(&qc->tf, &buf[32], 0); 342 ata_tf_to_fis(&qc->tf, 0, 1, &buf[32]);
341} 343}
342 344
343static inline void qs_packet_start(struct ata_queued_cmd *qc) 345static inline void qs_packet_start(struct ata_queued_cmd *qc)