Commit 81d5f1bb authored by Arend van Spriel's avatar Arend van Spriel Committed by John W. Linville
Browse files

brcmfmac: assure USB dongle firmware is reset upon module unload

Upon unloading the brcmfmac module the USB firmware should be reset
as the device remains powered. The reset assures a known device
state when a new brcmfmac driver load is being done.
Reviewed-by: default avatarPieter-Paul Giesberts <>
Reviewed-by: default avatarHante Meuleman <>
Signed-off-by: default avatarArend van Spriel <>
Signed-off-by: default avatarJohn W. Linville <>
parent ac744395
......@@ -39,6 +39,7 @@
#define BRCMF_C_GET_BSSID 23
#define BRCMF_C_GET_SSID 25
#define BRCMF_C_SET_SSID 26
#define BRCMF_C_GET_SRL 31
......@@ -154,7 +154,8 @@ static inline void brcmf_rx_packet(struct device *dev, int ifidx,
extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
/* Indication from bus module regarding removal/absence of dongle */
extern void brcmf_detach(struct device *dev);
/* Indication from bus module that dongle should be reset */
extern void brcmf_dev_reset(struct device *dev);
/* Indication from bus module to change flow-control state */
extern void brcmf_txflowblock(struct device *dev, bool state);
......@@ -845,6 +845,17 @@ static void brcmf_bus_detach(struct brcmf_pub *drvr)
void brcmf_dev_reset(struct device *dev)
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
struct brcmf_pub *drvr = bus_if->drvr;
if (drvr == NULL)
brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
void brcmf_detach(struct device *dev)
int i;
......@@ -1524,10 +1524,23 @@ static void brcmf_release_fw(struct list_head *q)
static int brcmf_usb_reset_device(struct device *dev, void *notused)
/* device past is the usb interface so we
* need to use parent here.
return 0;
void brcmf_usb_exit(void)
struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
int ret;
brcmf_dbg(USB, "Enter\n");
ret = driver_for_each_device(drv, NULL, NULL,
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