From: Pavel Machek <pavel@denx.de>
To: Sasha Levin <sashal@kernel.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Tony Lindgren <tony@atomide.com>,
Carl Philipp Klemm <philipp@uvos.xyz>,
Kalle Valo <kvalo@codeaurora.org>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH AUTOSEL 5.10 082/137] wlcore/wl12xx: Fix wl12xx get_mac error if device is in ELP
Date: Tue, 13 Jul 2021 00:03:43 +0200 [thread overview]
Message-ID: <20210712220343.GA9766@amd> (raw)
In-Reply-To: <20210706112203.2062605-82-sashal@kernel.org>
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Hi!
> From: Tony Lindgren <tony@atomide.com>
>
> [ Upstream commit 11ef6bc846dcdce838f0b00c5f6a562c57e5d43b ]
>
> At least on wl12xx, reading the MAC after boot can fail with a warning
> at drivers/net/wireless/ti/wlcore/sdio.c:78 wl12xx_sdio_raw_read.
> The failed call comes from wl12xx_get_mac() that wlcore_nvs_cb() calls
> after request_firmware_work_func().
> +++ b/drivers/net/wireless/ti/wl12xx/main.c
> @@ -1503,6 +1503,13 @@ static int wl12xx_get_fuse_mac(struct wl1271 *wl)
> u32 mac1, mac2;
> int ret;
>
> + /* Device may be in ELP from the bootloader or kexec */
> + ret = wlcore_write32(wl, WL12XX_WELP_ARM_COMMAND, WELP_ARM_COMMAND_VAL);
> + if (ret < 0)
> + goto out;
> +
> + usleep_range(500000, 700000);
> +
While this probably improves things.... I don't believe delaying boot
by extra 200msec is good idea. This should simply be msleep(500),
AFAICT.
Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2021-07-12 22:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210706112203.2062605-1-sashal@kernel.org>
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 082/137] wlcore/wl12xx: Fix wl12xx get_mac error if device is in ELP Sasha Levin
2021-07-12 22:03 ` Pavel Machek [this message]
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 083/137] wl1251: Fix possible buffer overflow in wl1251_cmd_scan Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 084/137] cw1200: add missing MODULE_DEVICE_TABLE Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 090/137] mt76: mt7615: fix fixed-rate tx status reporting Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 097/137] mt76: mt7915: fix IEEE80211_HE_PHY_CAP7_MAX_NC for station mode Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 098/137] rtl8xxxu: Fix device info for RTL8192EU devices Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 105/137] iwlwifi: mvm: don't change band on bound PHY contexts Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 106/137] iwlwifi: mvm: fix error print when session protection ends Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 107/137] iwlwifi: mvm: support LONG_GROUP for WOWLAN_GET_STATUSES version Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 108/137] iwlwifi: pcie: free IML DMA memory allocation Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 109/137] iwlwifi: pcie: fix context info freeing Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 113/137] wireless: wext-spy: Fix out-of-bounds warning Sasha Levin
2021-07-06 14:08 ` Johannes Berg
2021-07-07 10:45 ` Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 114/137] cfg80211: fix default HE tx bitrate mask in 2G band Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 115/137] mac80211: consider per-CPU statistics if present Sasha Levin
2021-07-06 11:21 ` [PATCH AUTOSEL 5.10 116/137] mac80211_hwsim: add concurrent channels scanning support over virtio Sasha Levin
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