staging: brcm80211: remove otp power control functions

For the devices supported by brcmsmac driver the OTP device is always
powered. Functions for reading power status and changing it are not
needed.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/aiutils.c

@@ -2277,17 +2277,3 @@ bool ai_is_otp_disabled(struct si_pub *sih)
 		return false;
 	}
 }
-
-bool ai_is_otp_powered(struct si_pub *sih)
-{
-	if (PMUCTL_ENAB(sih))
-		return si_pmu_is_otp_powered(sih);
-	return true;
-}
-
-void ai_otp_power(struct si_pub *sih, bool on)
-{
-	if (PMUCTL_ENAB(sih))
-		si_pmu_otp_power(sih, on);
-	udelay(1000);
-}

drivers/staging/brcm80211/brcmsmac/aiutils.h

@@ -558,8 +558,6 @@ extern u32 ai_gpiocontrol(struct si_pub *sih, u32 mask, u32 val,
 
 /* OTP status */
 extern bool ai_is_otp_disabled(struct si_pub *sih);
-extern bool ai_is_otp_powered(struct si_pub *sih);
-extern void ai_otp_power(struct si_pub *sih, bool on);
 
 /* SPROM availability */
 extern bool ai_is_sprom_available(struct si_pub *sih);

drivers/staging/brcm80211/brcmsmac/otp.c

@@ -310,10 +310,7 @@ static void *ipxotp_init(struct si_pub *sih)
 	if (ai_is_otp_disabled(sih))
 		return NULL;
 
-	/* Make sure OTP is powered up */
-	if (!ai_is_otp_powered(sih))
-		return NULL;
-
+	/* OTP is always powered */
 	oi = &otpinfo;
 
 	/* Check for otp size */
@@ -518,15 +515,10 @@ void *otp_init(struct si_pub *sih)
 int
 otp_read_region(struct si_pub *sih, int region, u16 *data,
 				 uint *wlen) {
-	bool wasup = false;
 	void *oh;
 	int err = 0;
 
-	wasup = ai_is_otp_powered(sih);
-	if (!wasup)
-		ai_otp_power(sih, true);
-
-	if (!ai_is_otp_powered(sih) || ai_is_otp_disabled(sih)) {
+	if (ai_is_otp_disabled(sih)) {
 		err = -EPERM;
 		goto out;
 	}
@@ -540,9 +532,6 @@ otp_read_region(struct si_pub *sih, int region, u16 *data,
 	err = (((otpinfo_t *) oh)->fn->read_region) (oh, region, data, wlen);
 
  out:
-	if (!wasup)
-		ai_otp_power(sih, false);
-
 	return err;
 }