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iwlwifi: fix gain computation for 5000 series and up

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In Rx gain balancing (chain noise) computation for 5000 series and up,
the delta gain calculation should use the average noise of default
chain, not "chain 0" which do not exist for all the devices.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2009-10-23 13:42:20 -07:00 committed by John W. Linville
parent 1a5c3d6199
commit 065e63b00c
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/iwlwifi/iwl-5000.c
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@ -236,7 +236,7 @@ static void iwl5000_gain_computation(struct iwl_priv *priv,
data->delta_gain_code[i] = 0;
continue;
}
delta_g = (1000 * ((s32)average_noise[0] -
delta_g = (1000 * ((s32)average_noise[default_chain] -
(s32)average_noise[i])) / 1500;
/* bound gain by 2 bits value max, 3rd bit is sign */
data->delta_gain_code[i] =