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Revert "brcmfmac: Disable power management"

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Shortly after the release of the Pi 3B, a loss of SSH connectivity
over WiFi was traced to the power management handling, so power
management was disabled. And so it has remained ever since.

Enabling power management saves 55mA (~270mW) on a Pi 4B, so is very
much worth the minimal effort of reverting this patch, which was
squashed and rebased many times since then to the commit hash is
meaningless.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
This commit is contained in:
Phil Elwell
2019-11-13 16:28:10 +00:00
committed by popcornmix
parent d56c8c2ba6
commit a874724953
1 changed files with 1 additions and 3 deletions
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4
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@@ -2767,8 +2767,6 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
* preference in cfg struct to apply this to
* FW later while initializing the dongle
*/
pr_info("power management disabled\n");
enabled = false;
cfg->pwr_save = enabled;
if (!check_vif_up(ifp->vif)) {
@@ -2782,7 +2780,7 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
pm = PM_OFF;
}
brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
brcmf_err("power save %s\n", (pm ? "enabled" : "disabled"));
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
if (err) {