From a5bdc197972b70f82c58735f726859cdd0851ab5 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 29 Jul 2015 13:50:48 +0200
Subject: [PATCH] phy: fix tx power delta parsing

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
 eeprom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eeprom.c b/eeprom.c
index 7687e1e4..ad570cda 100644
--- a/eeprom.c
+++ b/eeprom.c
@@ -497,7 +497,7 @@ mt76_get_power_info_5g(struct mt76_dev *dev, struct mt76_tx_power_info *t,
 	t->chain[chain].tssi_slope = data[0];
 	t->chain[chain].tssi_offset = data[1];
 	t->chain[chain].target_power = data[2];
-	t->chain[chain].delta = data[delta_idx];
+	t->chain[chain].delta = mt76_sign_extend_optional(data[delta_idx], 7);
 
 	val = mt76_eeprom_get(dev, MT_EE_RF_2G_RX_HIGH_GAIN);
 	t->target_power = val & 0xff;