diff options
Diffstat (limited to 'drivers/misc/bcm4329_rfkill.c')
| -rw-r--r-- | drivers/misc/bcm4329_rfkill.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/misc/bcm4329_rfkill.c b/drivers/misc/bcm4329_rfkill.c index a077326f2553..9dc33fd51e59 100644 --- a/drivers/misc/bcm4329_rfkill.c +++ b/drivers/misc/bcm4329_rfkill.c @@ -44,6 +44,13 @@ static struct bcm4329_rfkill_data *bcm4329_rfkill; static int bcm4329_bt_rfkill_set_power(void *data, bool blocked) { + /* + * check if BT gpio_shutdown line status and current request are same. + * If same, then return, else perform requested operation. + */ + if (gpio_get_value(bcm4329_rfkill->gpio_shutdown) && !blocked) + return 0; + if (blocked) { if (bcm4329_rfkill->gpio_shutdown) gpio_direction_output(bcm4329_rfkill->gpio_shutdown, 0); @@ -104,7 +111,9 @@ static int bcm4329_rfkill_probe(struct platform_device *pdev) ret = gpio_request(bcm4329_rfkill->gpio_reset, "bcm4329_nreset_gpio"); } else { - pr_warn("%s : can't find reset gpio.\n", __func__); + pr_warn("%s : can't find reset gpio. " + "reset gpio may not be defined for " + "this platform \n", __func__); bcm4329_rfkill->gpio_reset = 0; } @@ -116,7 +125,9 @@ static int bcm4329_rfkill_probe(struct platform_device *pdev) ret = gpio_request(bcm4329_rfkill->gpio_shutdown, "bcm4329_nshutdown_gpio"); } else { - pr_warn("%s : can't find shutdown gpio.\n", __func__); + pr_warn("%s : can't find shutdown gpio " + "shutdown gpio may not be defined for " + "this platform \n", __func__); bcm4329_rfkill->gpio_shutdown = 0; } |