X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Faic7xxx%2Faic79xx_pci.c;h=c25b6adffbf94f50fd5684063e7add6b04984895;hb=bdee6ac7d1c9a4a9b65db1753b0bfa0b61361dde;hp=0bada0028aa0ba0c2081f79c4bdc99477754f6bc;hpb=2c4f365ad2361c93c097e958b2b0a7a112750228;p=linux-2.6

diff --git a/drivers/scsi/aic7xxx/aic79xx_pci.c b/drivers/scsi/aic7xxx/aic79xx_pci.c
index 0bada0028a..c25b6adffb 100644
--- a/drivers/scsi/aic7xxx/aic79xx_pci.c
+++ b/drivers/scsi/aic7xxx/aic79xx_pci.c
@@ -97,7 +97,7 @@ static ahd_device_setup_t ahd_aic7901A_setup;
 static ahd_device_setup_t ahd_aic7902_setup;
 static ahd_device_setup_t ahd_aic790X_setup;
 
-static struct ahd_pci_identity ahd_pci_ident_table [] =
+static const struct ahd_pci_identity ahd_pci_ident_table[] =
 {
 	/* aic7901 based controllers */
 	{
@@ -253,7 +253,7 @@ static void	ahd_configure_termination(struct ahd_softc *ahd,
 static void	ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat);
 static void	ahd_pci_intr(struct ahd_softc *ahd);
 
-struct ahd_pci_identity *
+const struct ahd_pci_identity *
 ahd_find_pci_device(ahd_dev_softc_t pci)
 {
 	uint64_t  full_id;
@@ -261,7 +261,7 @@ ahd_find_pci_device(ahd_dev_softc_t pci)
 	uint16_t  vendor;
 	uint16_t  subdevice;
 	uint16_t  subvendor;
-	struct	  ahd_pci_identity *entry;
+	const struct ahd_pci_identity *entry;
 	u_int	  i;
 
 	vendor = ahd_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
@@ -292,7 +292,7 @@ ahd_find_pci_device(ahd_dev_softc_t pci)
 }
 
 int
-ahd_pci_config(struct ahd_softc *ahd, struct ahd_pci_identity *entry)
+ahd_pci_config(struct ahd_softc *ahd, const struct ahd_pci_identity *entry)
 {
 	struct scb_data *shared_scb_data;
 	u_int		 command;
@@ -389,6 +389,35 @@ ahd_pci_config(struct ahd_softc *ahd, struct ahd_pci_identity *entry)
 	return error;
 }
 
+#ifdef CONFIG_PM
+void
+ahd_pci_suspend(struct ahd_softc *ahd)
+{
+	/*
+	 * Save chip register configuration data for chip resets
+	 * that occur during runtime and resume events.
+	 */
+	ahd->suspend_state.pci_state.devconfig =
+	    ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
+	ahd->suspend_state.pci_state.command =
+	    ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/1);
+	ahd->suspend_state.pci_state.csize_lattime =
+	    ahd_pci_read_config(ahd->dev_softc, CSIZE_LATTIME, /*bytes*/1);
+
+}
+
+void
+ahd_pci_resume(struct ahd_softc *ahd)
+{
+	ahd_pci_write_config(ahd->dev_softc, DEVCONFIG,
+			     ahd->suspend_state.pci_state.devconfig, /*bytes*/4);
+	ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
+			     ahd->suspend_state.pci_state.command, /*bytes*/1);
+	ahd_pci_write_config(ahd->dev_softc, CSIZE_LATTIME,
+			     ahd->suspend_state.pci_state.csize_lattime, /*bytes*/1);
+}
+#endif
+
 /*
  * Perform some simple tests that should catch situations where
  * our registers are invalidly mapped.
@@ -950,7 +979,7 @@ ahd_aic790X_setup(struct ahd_softc *ahd)
 			  |  AHD_FAINT_LED_BUG;
 
 		/*
-		 * IO Cell paramter setup.
+		 * IO Cell parameter setup.
 		 */
 		AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
 
@@ -977,7 +1006,7 @@ ahd_aic790X_setup(struct ahd_softc *ahd)
 			ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG;
 
 		/*
-		 * IO Cell paramter setup.
+		 * IO Cell parameter setup.
 		 */
 		AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
 		AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVB);