staging: brcm80211: remove fullmac module_param brcmf_idletime

Use constant for idle time setting.
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/dhd.h

@@ -808,5 +808,6 @@ extern void brcmf_c_pktfilter_offload_enable(struct brcmf_pub *drvr, char *arg,
 #define BRCMF_IDLE_IMMEDIATE	(-1)
 #define BRCMF_IDLE_ACTIVE	0	/* Do not request any SD clock change
 				 when idle */
+#define BRCMF_IDLE_INTERVAL	1
 
 #endif				/* _BRCMF_H_ */

drivers/staging/brcm80211/brcmfmac/dhd_sdio.c

@@ -747,9 +747,6 @@ module_param(brcmf_txbound, uint, 0);
 module_param(brcmf_rxbound, uint, 0);
 static uint brcmf_txminmax;
 
-int brcmf_idletime = 1;
-module_param(brcmf_idletime, int, 0);
-
 #define SDIO_DRIVE_STRENGTH	6	/* in milliamps */
 
 /* Use polling */
@@ -4650,7 +4647,7 @@ static bool brcmf_sdbrcm_probe_init(struct brcmf_bus *bus)
 
 	/* ...and initialize clock/power states */
 	bus->clkstate = CLK_SDONLY;
-	bus->idletime = (s32) brcmf_idletime;
+	bus->idletime = BRCMF_IDLE_INTERVAL;
 	bus->idleclock = BRCMF_IDLE_ACTIVE;
 
 	/* Query the F2 block size, set roundup accordingly */