brcm80211: fmac: move chip detach function to sdio_chip.c

This patch is part of the abstracting chip backplane handle code
series.

Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

@@ -3967,15 +3967,6 @@ brcmf_sdbrcm_watchdog(unsigned long data)
 	}
 }
 
-static void
-brcmf_sdbrcm_chip_detach(struct brcmf_bus *bus)
-{
-	brcmf_dbg(TRACE, "Enter\n");
-
-	kfree(bus->ci);
-	bus->ci = NULL;
-}
-
 static void brcmf_sdbrcm_release_dongle(struct brcmf_bus *bus)
 {
 	brcmf_dbg(TRACE, "Enter\n");
@@ -3983,7 +3974,7 @@ static void brcmf_sdbrcm_release_dongle(struct brcmf_bus *bus)
 	if (bus->ci) {
 		brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
 		brcmf_sdbrcm_clkctl(bus, CLK_NONE, false);
-		brcmf_sdbrcm_chip_detach(bus);
+		brcmf_sdio_chip_detach(&bus->ci);
 		if (bus->vars && bus->varsz)
 			kfree(bus->vars);
 		bus->vars = NULL;

drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c

@@ -354,3 +354,12 @@ err:
 	kfree(ci);
 	return ret;
 }
+
+void
+brcmf_sdio_chip_detach(struct chip_info **ci_ptr)
+{
+	brcmf_dbg(TRACE, "Enter\n");
+
+	kfree(*ci_ptr);
+	*ci_ptr = NULL;
+}

drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h

@@ -141,5 +141,6 @@ extern void brcmf_sdio_chip_coredisable(struct brcmf_sdio_dev *sdiodev,
 					u32 corebase);
 extern int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
 				  struct chip_info **ci_ptr, u32 regs);
+extern void brcmf_sdio_chip_detach(struct chip_info **ci_ptr);
 
 #endif		/* _BRCMFMAC_SDIO_CHIP_H_ */