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-rw-r--r--drivers/net/wireless/rt2x00/rt2400pci.c8
-rw-r--r--drivers/net/wireless/rt2x00/rt2500pci.c8
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00link.c8
3 files changed, 16 insertions, 8 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index d5f1fabe9faf..25e9dcf65c4e 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -586,9 +586,11 @@ static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev,
static inline void rt2400pci_set_vgc(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, u8 vgc_level)
{
- rt2400pci_bbp_write(rt2x00dev, 13, vgc_level);
- qual->vgc_level = vgc_level;
- qual->vgc_level_reg = vgc_level;
+ if (qual->vgc_level_reg != vgc_level) {
+ rt2400pci_bbp_write(rt2x00dev, 13, vgc_level);
+ qual->vgc_level = vgc_level;
+ qual->vgc_level_reg = vgc_level;
+ }
}
static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 096d6dbc8305..faa804cf181a 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -626,6 +626,7 @@ static inline void rt2500pci_set_vgc(struct rt2x00_dev *rt2x00dev,
{
if (qual->vgc_level_reg != vgc_level) {
rt2500pci_bbp_write(rt2x00dev, 17, vgc_level);
+ qual->vgc_level = vgc_level;
qual->vgc_level_reg = vgc_level;
}
}
@@ -700,13 +701,10 @@ dynamic_cca_tune:
* R17 is inside the dynamic tuning range,
* start tuning the link based on the false cca counter.
*/
- if (qual->false_cca > 512 && qual->vgc_level_reg < 0x40) {
+ if (qual->false_cca > 512 && qual->vgc_level_reg < 0x40)
rt2500pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level_reg);
- qual->vgc_level = qual->vgc_level_reg;
- } else if (qual->false_cca < 100 && qual->vgc_level_reg > 0x32) {
+ else if (qual->false_cca < 100 && qual->vgc_level_reg > 0x32)
rt2500pci_set_vgc(rt2x00dev, qual, --qual->vgc_level_reg);
- qual->vgc_level = qual->vgc_level_reg;
- }
}
/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index 14f1d5126289..9acfc5c70389 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -302,6 +302,7 @@ void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev)
void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna)
{
struct link_qual *qual = &rt2x00dev->link.qual;
+ u8 vgc_level = qual->vgc_level_reg;
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
@@ -318,6 +319,13 @@ void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna)
memset(qual, 0, sizeof(*qual));
/*
+ * Restore the VGC level as stored in the registers,
+ * the driver can use this to determine if the register
+ * must be updated during reset or not.
+ */
+ qual->vgc_level_reg = vgc_level;
+
+ /*
* Reset the link tuner.
*/
rt2x00dev->ops->lib->reset_tuner(rt2x00dev, qual);