linux-kernel - [PATCH] brcmfmac: use ISO3166 country code and 0 rev as fallback on brcmfmac43602 chips

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Date:   Sat, 23 Apr 2022 15:42:37 +0430
From:   Hamid Zamani <hzamani.cs91@...il.com>
To:     Kalle Valo <kvalo@...nel.org>
Cc:     Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Shawn Guo <shawn.guo@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Soeren Moch <smoch@....de>, linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Hamid Zamani <hzamani.cs91@...il.com>
Subject: [PATCH] brcmfmac: use ISO3166 country code and 0 rev as fallback on brcmfmac43602 chips

This uses ISO3166 country code and 0 rev on brcmfmac43602 chips.
Without this patch 80 MHz width is not selected on 5 GHz channels.

Commit a21bf90e927f ("brcmfmac: use ISO3166 country code and 0 rev as
fallback on some devices") provides a way to specify chips for using the
fallback case.

Before commit 151a7c12c4fc ("Revert "brcmfmac: use ISO3166 country code
and 0 rev as fallback"") brcmfmac43602 devices works correctly and for
this specific case 80 MHz width is selected.

Signed-off-by: Hamid Zamani <hzamani.cs91@...il.com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index f0ad1e23f3c8..360b103fe898 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -7481,6 +7481,7 @@ static bool brmcf_use_iso3166_ccode_fallback(struct brcmf_pub *drvr)
 {
 	switch (drvr->bus_if->chip) {
 	case BRCM_CC_4345_CHIP_ID:
+	case BRCM_CC_43602_CHIP_ID:
 		return true;
 	default:
 		return false;
-- 
2.35.1