Fix the issue that some registers not configured properly after
restarting testmode.
(e.g. change state from idle to off, and off to idle)
Signed-off-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx>
---
v2: only need to backup once
---
.../wireless/mediatek/mt76/mt7915/testmode.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
index 89aae32..af80c2c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
@@ -361,16 +361,15 @@ mt7915_tm_reg_backup_restore(struct mt7915_phy *phy)
return;
}
- if (b)
- return;
-
- b = devm_kzalloc(dev->mt76.dev, 4 * n_regs, GFP_KERNEL);
- if (!b)
- return;
+ if (!b) {
+ b = devm_kzalloc(dev->mt76.dev, 4 * n_regs, GFP_KERNEL);
+ if (!b)
+ return;
- phy->test.reg_backup = b;
- for (i = 0; i < n_regs; i++)
- b[i] = mt76_rr(dev, reg_backup_list[i].band[ext_phy]);
+ phy->test.reg_backup = b;
+ for (i = 0; i < n_regs; i++)
+ b[i] = mt76_rr(dev, reg_backup_list[i].band[ext_phy]);
+ }
mt76_clear(dev, MT_AGG_PCR0(ext_phy, 0), MT_AGG_PCR0_MM_PROT |
MT_AGG_PCR0_GF_PROT | MT_AGG_PCR0_ERP_PROT |
--
2.25.1
