commit d5ae7a6bd09792ddf0e9dfaf97ad34b9ad6dc146
author Stanislaw Gruszka <stf_xl@wp.pl> Sat Mar 16 19:19:42 2013 +0100
committer John W. Linville <linville@tuxdriver.com> Mon Mar 18 16:38:33 2013 -0400
tree 42e55b0222cefd20a6e1d3c6dea1f44535ff8091
parent c267548755a184ef97301071300c1739a564e135

rt2800: 5592: setup LDO_CFG0 when configuring channel

Based on:
RT5592_ChipSwitchChannel()

from:
DPO_RT5572_LinuxSTA_2.6.1.3_20121022/chips/rt5592.c

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Tested-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800lib.c

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 93b9def..189c880 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2187,12 +2187,17 @@
 					 struct channel_info *info)
 {
 	u8 rfcsr, ep_reg;
+	u32 reg;
 	int power_bound;
 
 	/* TODO */
 	const bool is_11b = false;
 	const bool is_type_ep = false;
 
+	rt2800_register_read(rt2x00dev, LDO_CFG0, &reg);
+	rt2x00_set_field32(&reg, LDO_CFG0_LDO_CORE_VLEVEL,
+			   (rf->channel > 14 || conf_is_ht40(conf)) ? 5 : 0);
+	rt2800_register_write(rt2x00dev, LDO_CFG0, reg);
 
 	/* Order of values on rf_channel entry: N, K, mod, R */
 	rt2800_rfcsr_write(rt2x00dev, 8, rf->rf1 & 0xff);