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path: root/drivers/net/wireless/iwlwifi/iwl-eeprom.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-eeprom.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-eeprom.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 9429cb1c69b..8a0709e81a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -533,6 +533,10 @@ int iwl_eeprom_init(struct iwl_priv *priv)
goto err;
}
if (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) {
+
+ /* OTP reads require powered-up chip */
+ priv->cfg->ops->lib->apm_ops.init(priv);
+
ret = iwl_init_otp_access(priv);
if (ret) {
IWL_ERR(priv, "Failed to initialize OTP access.\n");
@@ -563,6 +567,13 @@ int iwl_eeprom_init(struct iwl_priv *priv)
e[cache_addr / 2] = eeprom_data;
cache_addr += sizeof(u16);
}
+
+ /*
+ * Now that OTP reads are complete, reset chip to save
+ * power until we load uCode during "up".
+ */
+ priv->cfg->ops->lib->apm_ops.stop(priv);
+
} else {
/* eeprom is an array of 16bit values */
for (addr = 0; addr < sz; addr += sizeof(u16)) {