Commit 065e63b0 authored by Wey-Yi Guy's avatar Wey-Yi Guy Committed by John W. Linville
Browse files

iwlwifi: fix gain computation for 5000 series and up 



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: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 1a5c3d61

drivers/net/wireless/iwlwifi/iwl-5000.c

+1 −1
Original line number Diff line number Diff line
@@ -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] =