netdev - [PATCH v2] brcmfmac: Set timeout value when configuring power save

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Message-Id: <20200721112302.22718-1-nsaenzjulienne@suse.de>
Date:   Tue, 21 Jul 2020 13:23:02 +0200
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     linux-kernel@...r.kernel.org
Cc:     kvalo@...eaurora.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Arend van Spriel <arend.vanspriel@...adcom.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Chi-Hsien Lin <chi-hsien.lin@...ress.com>,
        Wright Feng <wright.feng@...ress.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        brcm80211-dev-list@...ress.com, netdev@...r.kernel.org
Subject: [PATCH v2] brcmfmac: Set timeout value when configuring power save

Set the timeout value as per cfg80211's set_power_mgmt() request. If the
requested value value is left undefined we set it to 2 seconds, the
maximum supported value.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
---

Changes since v1:
 - Use min_t()

 .../net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 5d99771c3f64..ab0da2ff982e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -84,6 +84,8 @@
 
 #define BRCMF_ND_INFO_TIMEOUT		msecs_to_jiffies(2000)
 
+#define BRCMF_PS_MAX_TIMEOUT_MS		2000
+
 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
 	(sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
 
@@ -2942,6 +2944,12 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
 		else
 			bphy_err(drvr, "error (%d)\n", err);
 	}
+
+	err = brcmf_fil_iovar_int_set(ifp, "pm2_sleep_ret",
+				min_t(u32, timeout, BRCMF_PS_MAX_TIMEOUT_MS));
+	if (err)
+		bphy_err(drvr, "Unable to set pm timeout, (%d)\n", err);
+
 done:
 	brcmf_dbg(TRACE, "Exit\n");
 	return err;
-- 
2.27.0