Signed-off-by: Rafał Miłecki <[email protected]>
---
drivers/net/wireless/b43/phy_common.c | 5 +++++
drivers/net/wireless/b43/phy_common.h | 6 ++++++
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/b43/phy_common.c
b/drivers/net/wireless/b43/phy_common.c
index fa7f83f..0a91fc3 100644
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -231,6 +231,7 @@ void b43_radio_maskset(struct b43_wldev *dev, u16 offset,
u16 mask, u16 set)
u16 b43_phy_read(struct b43_wldev *dev, u16 reg)
{
assert_mac_suspended(dev);
+ dev->phy.writes_counter = 0;
return dev->phy.ops->phy_read(dev, reg);
}
@@ -238,6 +239,10 @@ void b43_phy_write(struct b43_wldev *dev, u16 reg, u16
value)
{
assert_mac_suspended(dev);
dev->phy.ops->phy_write(dev, reg, value);
+ if (++dev->phy.writes_counter == B43_MAX_WRITES_IN_ROW) {
+ b43_read16(dev, B43_MMIO_PHY_VER);
+ dev->phy.writes_counter = 0;
+ }
}
void b43_phy_copy(struct b43_wldev *dev, u16 destreg, u16 srcreg)
diff --git a/drivers/net/wireless/b43/phy_common.h
b/drivers/net/wireless/b43/phy_common.h
index 0e61942..2ed60e5 100644
--- a/drivers/net/wireless/b43/phy_common.h
+++ b/drivers/net/wireless/b43/phy_common.h
@@ -39,6 +39,9 @@ struct b43_c32 { s32 i, q; };
#define B43_PHYVER_TYPE_SHIFT 8
#define B43_PHYVER_VERSION 0x00FF
+/* PHY writes need to be flushed if we reach limit */
+#define B43_MAX_WRITES_IN_ROW 24
+
/**
* enum b43_interference_mitigation - Interference Mitigation mode
*
@@ -232,6 +235,9 @@ struct b43_phy {
/* PHY revision number. */
u8 rev;
+ /* Count writes since last read */
+ u8 writes_counter;
+
/* Radio versioning */
u16 radio_manuf; /* Radio manufacturer */
u16 radio_ver; /* Radio version */
--
1.6.3.3
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