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41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
From bcadaaa097c7ec103fe75f9da41f8fe52693b644 Mon Sep 17 00:00:00 2001
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From: Arend Van Spriel <arend.vanspriel@broadcom.com>
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Date: Tue, 19 Dec 2017 13:47:12 +0100
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Subject: [PATCH] brcmfmac: More efficient and slightly easier to read fixup
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for 4339 chips
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Its more efficient to test the register we're interested in first,
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potentially avoiding two more comparisons, and therefore always avoiding
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one comparison per call on all other chips.
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Signed-off-by: Ian Molton <ian@mnementh.co.uk>
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[arend: fix some checkpatch warnings]
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Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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@@ -3772,15 +3772,16 @@ static u32 brcmf_sdio_buscore_read32(voi
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val = brcmf_sdiod_readl(sdiodev, addr, NULL);
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- if ((sdiodev->func[1]->device == SDIO_DEVICE_ID_BROADCOM_4335_4339 ||
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- sdiodev->func[1]->device == SDIO_DEVICE_ID_BROADCOM_4339) &&
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- addr == CORE_CC_REG(SI_ENUM_BASE, chipid)) {
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+ if (addr == CORE_CC_REG(SI_ENUM_BASE, chipid) &&
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+ (sdiodev->func[1]->device == SDIO_DEVICE_ID_BROADCOM_4339 ||
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+ sdiodev->func[1]->device == SDIO_DEVICE_ID_BROADCOM_4335_4339)) {
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rev = (val & CID_REV_MASK) >> CID_REV_SHIFT;
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if (rev >= 2) {
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val &= ~CID_ID_MASK;
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val |= BRCM_CC_4339_CHIP_ID;
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}
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}
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+
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return val;
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}
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