AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-01 17:26:39 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

rt2x00: rt2800lib: fix frequency offset boundary calculation

Browse Source 
The current code in the 'rt2800_adjust_freq_offset'
function limits the device specific frequency offset
value to FREQ_BOUND but ignores the fact that the
uppermost bit is not part of the frequency offset
value. As the result, the driver always uses the
FREQ_BOUND value if the uppermost bit is set.

Update the code to use the correct source value
for calculating the boundary.

Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.

Reference:
  RTMPAdjustFrequencyOffset function in common/rt_rf.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Gabor Juhos 2013-08-17 14:09:28 +02:00 committed by John W. Linville
parent 77f7c0f3b8
commit c1fada4e5e
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/wireless/rt2x00/rt2800lib.c
View File

@ -2496,13 +2496,14 @@ static void rt2800_config_channel_rf3053(struct rt2x00_dev *rt2x00dev,
static void rt2800_adjust_freq_offset(struct rt2x00_dev *rt2x00dev)
{
u8 freq_offset;
u8 rfcsr;
freq_offset = rt2x00_get_field8(rt2x00dev->freq_offset, RFCSR17_CODE);
freq_offset = min_t(u8, freq_offset, FREQ_OFFSET_BOUND);
rt2800_rfcsr_read(rt2x00dev, 17, &rfcsr);
if (rt2x00dev->freq_offset > FREQ_OFFSET_BOUND)
rt2x00_set_field8(&rfcsr, RFCSR17_CODE, FREQ_OFFSET_BOUND);
else
rt2x00_set_field8(&rfcsr, RFCSR17_CODE, rt2x00dev->freq_offset);
rt2x00_set_field8(&rfcsr, RFCSR17_CODE, freq_offset);
rt2800_rfcsr_write(rt2x00dev, 17, rfcsr);
}