diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/sdio.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/sdio.c | 83 |
1 files changed, 34 insertions, 49 deletions
diff --git a/drivers/net/wireless/wl12xx/sdio.c b/drivers/net/wireless/wl12xx/sdio.c index 536e5065454b..5cf18c2c23f0 100644 --- a/drivers/net/wireless/wl12xx/sdio.c +++ b/drivers/net/wireless/wl12xx/sdio.c @@ -23,7 +23,6 @@ #include <linux/irq.h> #include <linux/module.h> -#include <linux/crc7.h> #include <linux/vmalloc.h> #include <linux/mmc/sdio_func.h> #include <linux/mmc/sdio_ids.h> @@ -45,7 +44,7 @@ #define SDIO_DEVICE_ID_TI_WL1271 0x4076 #endif -static const struct sdio_device_id wl1271_devices[] = { +static const struct sdio_device_id wl1271_devices[] __devinitconst = { { SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) }, {} }; @@ -107,14 +106,6 @@ static void wl1271_sdio_enable_interrupts(struct wl1271 *wl) enable_irq(wl->irq); } -static void wl1271_sdio_reset(struct wl1271 *wl) -{ -} - -static void wl1271_sdio_init(struct wl1271 *wl) -{ -} - static void wl1271_sdio_raw_read(struct wl1271 *wl, int addr, void *buf, size_t len, bool fixed) { @@ -170,15 +161,17 @@ static int wl1271_sdio_power_on(struct wl1271 *wl) struct sdio_func *func = wl_to_func(wl); int ret; - /* Make sure the card will not be powered off by runtime PM */ - ret = pm_runtime_get_sync(&func->dev); - if (ret < 0) - goto out; - - /* Runtime PM might be disabled, so power up the card manually */ - ret = mmc_power_restore_host(func->card->host); - if (ret < 0) - goto out; + /* If enabled, tell runtime PM not to power off the card */ + if (pm_runtime_enabled(&func->dev)) { + ret = pm_runtime_get_sync(&func->dev); + if (ret) + goto out; + } else { + /* Runtime PM is disabled: power up the card manually */ + ret = mmc_power_restore_host(func->card->host); + if (ret < 0) + goto out; + } sdio_claim_host(func); sdio_enable_func(func); @@ -195,13 +188,16 @@ static int wl1271_sdio_power_off(struct wl1271 *wl) sdio_disable_func(func); sdio_release_host(func); - /* Runtime PM might be disabled, so power off the card manually */ + /* Power off the card manually, even if runtime PM is enabled. */ ret = mmc_power_save_host(func->card->host); if (ret < 0) return ret; - /* Let runtime PM know the card is powered off */ - return pm_runtime_put_sync(&func->dev); + /* If enabled, let runtime PM know the card is powered off */ + if (pm_runtime_enabled(&func->dev)) + ret = pm_runtime_put_sync(&func->dev); + + return ret; } static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) @@ -215,8 +211,6 @@ static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) static struct wl1271_if_operations sdio_ops = { .read = wl1271_sdio_raw_read, .write = wl1271_sdio_raw_write, - .reset = wl1271_sdio_reset, - .init = wl1271_sdio_init, .power = wl1271_sdio_set_power, .dev = wl1271_sdio_wl_to_dev, .enable_irq = wl1271_sdio_enable_interrupts, @@ -278,17 +272,19 @@ static int __devinit wl1271_probe(struct sdio_func *func, goto out_free; } - enable_irq_wake(wl->irq); - device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1); + ret = enable_irq_wake(wl->irq); + if (!ret) { + wl->irq_wake_enabled = true; + device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1); - disable_irq(wl->irq); - - /* if sdio can keep power while host is suspended, enable wow */ - mmcflags = sdio_get_host_pm_caps(func); - wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags); + /* if sdio can keep power while host is suspended, enable wow */ + mmcflags = sdio_get_host_pm_caps(func); + wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags); - if (mmcflags & MMC_PM_KEEP_POWER) - hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY; + if (mmcflags & MMC_PM_KEEP_POWER) + hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY; + } + disable_irq(wl->irq); ret = wl1271_init_ieee80211(wl); if (ret) @@ -303,8 +299,6 @@ static int __devinit wl1271_probe(struct sdio_func *func, /* Tell PM core that we don't need the card to be powered now */ pm_runtime_put_noidle(&func->dev); - wl1271_notice("initialized"); - return 0; out_irq: @@ -324,8 +318,10 @@ static void __devexit wl1271_remove(struct sdio_func *func) pm_runtime_get_noresume(&func->dev); wl1271_unregister_hw(wl); - device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0); - disable_irq_wake(wl->irq); + if (wl->irq_wake_enabled) { + device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0); + disable_irq_wake(wl->irq); + } free_irq(wl->irq, wl); wl1271_free_hw(wl); } @@ -402,23 +398,12 @@ static struct sdio_driver wl1271_sdio_driver = { static int __init wl1271_init(void) { - int ret; - - ret = sdio_register_driver(&wl1271_sdio_driver); - if (ret < 0) { - wl1271_error("failed to register sdio driver: %d", ret); - goto out; - } - -out: - return ret; + return sdio_register_driver(&wl1271_sdio_driver); } static void __exit wl1271_exit(void) { sdio_unregister_driver(&wl1271_sdio_driver); - - wl1271_notice("unloaded"); } module_init(wl1271_init); |