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-rw-r--r--drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 81eb776218bb..08686147b59d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -3772,6 +3772,13 @@ static u32 brcmf_sdio_buscore_read32(void *ctx, u32 addr)
val = brcmf_sdiod_readl(sdiodev, addr, NULL);
+ /*
+ * this is a bit of special handling if reading the chipcommon chipid
+ * register. The 4339 is a next-gen of the 4335. It uses the same
+ * SDIO device id as 4335 and the chipid register returns 4335 as well.
+ * It can be identified as 4339 by looking at the chip revision. It
+ * is corrected here so the chip.c module has the right info.
+ */
if (addr == CORE_CC_REG(SI_ENUM_BASE, chipid) &&
(sdiodev->func1->device == SDIO_DEVICE_ID_BROADCOM_4339 ||
sdiodev->func1->device == SDIO_DEVICE_ID_BROADCOM_4335_4339)) {