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ath6kl: add suspend_cutpower module parameter 

This is to force ath6kl to power off hardware during suspend even if
sdio support keep power. This is needed, for example, when sdio
controller is buggy or maximum powersaving is desired.

Usage:

insmod ath6kl.ko suspend_cutpower=1

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Kalle Valo 2011-11-03 12:18:31 +02:00
parent cf97fa9fdf
commit 8277de15ef
3 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/ath/ath6kl/core.h
View File

@ -166,6 +166,7 @@ struct ath6kl_fw_ie {
#define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN BIT(1)
#define ATH6KL_CONF_ENABLE_11N BIT(2)
#define ATH6KL_CONF_ENABLE_TX_BURST BIT(3)
#define ATH6KL_CONF_SUSPEND_CUTPOWER BIT(4)
enum wlan_low_pwr_state {
WLAN_POWER_STATE_ON,

5
drivers/net/wireless/ath/ath6kl/init.c
View File

@ -27,9 +27,11 @@
unsigned int debug_mask;
static unsigned int testmode;
static bool suspend_cutpower;
module_param(debug_mask, uint, 0644);
module_param(testmode, uint, 0644);
module_param(suspend_cutpower, bool, 0444);
/*
* Include definitions here that can be used to tune the WLAN module
@ -1596,6 +1598,9 @@ int ath6kl_core_init(struct ath6kl *ar)
ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
if (suspend_cutpower)
ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER;
ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
WIPHY_FLAG_HAVE_AP_SME;

3
drivers/net/wireless/ath/ath6kl/sdio.c
View File

@ -784,7 +784,8 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar)
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio suspend pm_caps 0x%x\n", flags);
if (!(flags & MMC_PM_KEEP_POWER)) {
if (!(flags & MMC_PM_KEEP_POWER) ||
(ar->conf_flags & ATH6KL_CONF_SUSPEND_CUTPOWER)) {
/* as host doesn't support keep power we need to cut power */
return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_CUTPOWER);
}