diff options
| author | Ido Yariv <ido@wizery.com> | 2011-03-01 15:14:39 +0200 |
|---|---|---|
| committer | Luciano Coelho <coelho@ti.com> | 2011-03-03 16:10:46 +0200 |
| commit | 606ea9fa0b2c01ffafb6beae92ea8e2b1473520b (patch) | |
| tree | 8a7c4b0978e896fa26d0e2211823afa8f17507c9 /drivers/net/wireless/wl12xx/boot.c | |
| parent | 8aad24642a7c06832a75f1d20e8e3112b4fbd815 (diff) | |
wl12xx: Do end-of-transactions transfers only if needed
On newer hardware revisions, there is no need to write the host's
counter at the end of a RX transaction. The same applies to writing the
number of packets at the end of a TX transaction.
It is generally a good idea to avoid unnecessary SDIO/SPI transfers.
Throughput and CPU usage are improved when avoiding these.
Send the host's RX counter and the TX packet count only if needed, based
on the hardware revision.
[Changed WL12XX_QUIRK_END_OF_TRANSACTION to use BIT(0) -- Luca]
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/boot.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/boot.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c index 1ffbad67d2d8..6934dffd5174 100644 --- a/drivers/net/wireless/wl12xx/boot.c +++ b/drivers/net/wireless/wl12xx/boot.c @@ -488,6 +488,9 @@ static void wl1271_boot_hw_version(struct wl1271 *wl) fuse = (fuse & PG_VER_MASK) >> PG_VER_OFFSET; wl->hw_pg_ver = (s8)fuse; + + if (((wl->hw_pg_ver & PG_MAJOR_VER_MASK) >> PG_MAJOR_VER_OFFSET) < 3) + wl->quirks |= WL12XX_QUIRK_END_OF_TRANSACTION; } /* uploads NVS and firmware */ |