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>
diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c
index 1ffbad6..6934dffd 100644
--- a/drivers/net/wireless/wl12xx/boot.c
+++ b/drivers/net/wireless/wl12xx/boot.c
@@ -488,6 +488,9 @@
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 */