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authorSujith Manoharan <c_manoha@qualcomm.com>2012-09-16 04:35:40 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-09-24 20:59:10 +0200
commitd85ed4196ebb065906eacfdc4b1cec824a3799dd (patch)
tree154a88ca1d397d41639231934299bb636f64c0a6 /drivers
parentath9k_hw: Use HW cap ATH9K_HW_CAP_ANT_DIV_COMB (diff)
downloadlinux-d85ed4196ebb065906eacfdc4b1cec824a3799dd.tar.xz
linux-d85ed4196ebb065906eacfdc4b1cec824a3799dd.zip
ath9k: Remove redundant variable assignment
Set main_gaintb and alt_gaintb once instead of zero'ing them in every case. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath9k/antenna.c51
1 files changed, 3 insertions, 48 deletions
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index bbcfeb3b2a60..eb61c6bc480e 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -311,6 +311,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
struct ath_ant_comb *antcomb,
int alt_ratio)
{
+ ant_conf->main_gaintb = 0;
+ ant_conf->alt_gaintb = 0;
+
if (ant_conf->div_group == 0) {
/* Adjust the fast_div_bias based on main and alt lna conf */
switch ((ant_conf->main_lna_conf << 4) |
@@ -360,18 +363,12 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->alt_lna_conf) {
case 0x01: /* A-B LNA2 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x02: /* A-B LNA1 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x03: /* A-B A+B */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x10: /* LNA2 A-B */
if (!(antcomb->scan) &&
@@ -379,13 +376,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x3f;
else
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x12: /* LNA2 LNA1 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x13: /* LNA2 A+B */
if (!(antcomb->scan) &&
@@ -393,8 +386,6 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x3f;
else
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x20: /* LNA1 A-B */
if (!(antcomb->scan) &&
@@ -402,13 +393,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x3f;
else
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x21: /* LNA1 LNA2 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x23: /* LNA1 A+B */
if (!(antcomb->scan) &&
@@ -416,23 +403,15 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x3f;
else
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x30: /* A+B A-B */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x31: /* A+B LNA2 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x32: /* A+B LNA1 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
default:
break;
@@ -443,18 +422,12 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->alt_lna_conf) {
case 0x01: /* A-B LNA2 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x02: /* A-B LNA1 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x03: /* A-B A+B */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x10: /* LNA2 A-B */
if (!(antcomb->scan) &&
@@ -462,13 +435,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x1;
else
ant_conf->fast_div_bias = 0x2;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x12: /* LNA2 LNA1 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x13: /* LNA2 A+B */
if (!(antcomb->scan) &&
@@ -476,8 +445,6 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x1;
else
ant_conf->fast_div_bias = 0x2;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x20: /* LNA1 A-B */
if (!(antcomb->scan) &&
@@ -485,13 +452,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x1;
else
ant_conf->fast_div_bias = 0x2;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x21: /* LNA1 LNA2 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x23: /* LNA1 A+B */
if (!(antcomb->scan) &&
@@ -499,23 +462,15 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
ant_conf->fast_div_bias = 0x1;
else
ant_conf->fast_div_bias = 0x2;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x30: /* A+B A-B */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x31: /* A+B LNA2 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
case 0x32: /* A+B LNA1 */
ant_conf->fast_div_bias = 0x1;
- ant_conf->main_gaintb = 0;
- ant_conf->alt_gaintb = 0;
break;
default:
break;