iwlwifi: remove set_pwr_src operation

The set_pwr_src operation is only ever used from
within the same sub-driver that it is declared
in, so it can just be called directly instead of
being an operation. Also, it is never called to
set the power source to V_aux, so change the two
functions accordingly (but keep the V_aux code
for documentation purposes in a comment).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

9 files changed, 30 insertions, 46 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 8aed9ead3a75..5bdfe9dcd070 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -196,7 +196,6 @@ static struct iwl_lib_ops iwl1000_lib = {
                 .init = iwl_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl1000_nic_config,
-                .set_pwr_src = iwl_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index ba3ab04c1fba..824c9428efaa 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -816,9 +816,12 @@ static u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate)
         return sta_id;
 }
 
-static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
+static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
 {
-        if (src == IWL_PWR_SRC_VAUX) {
+/*
+ * (for documentation purposes)
+ * to set power to V_AUX, do
+
                 if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
                         iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
                                         APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
@@ -828,16 +831,14 @@ static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
                                      CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
                                      CSR_GPIO_IN_BIT_AUX_POWER, 5000);
                 }
-        } else {
-                iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
-                                APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
-                                ~APMG_PS_CTRL_MSK_PWR_SRC);
+ */
 
-                iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
-                             CSR_GPIO_IN_BIT_AUX_POWER, 5000);  /* uS */
-        }
+        iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+                        APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+                        ~APMG_PS_CTRL_MSK_PWR_SRC);
 
-        return 0;
+        iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
+                     CSR_GPIO_IN_BIT_AUX_POWER, 5000);  /* uS */
 }
 
 static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
@@ -1031,9 +1032,7 @@ int iwl3945_hw_nic_init(struct iwl_priv *priv)
         priv->cfg->ops->lib->apm_ops.init(priv);
         spin_unlock_irqrestore(&priv->lock, flags);
 
-        rc = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
-        if (rc)
-                return rc;
+        iwl3945_set_pwr_vmain(priv);
 
         priv->cfg->ops->lib->apm_ops.config(priv);
 
@@ -2707,7 +2706,6 @@ static struct iwl_lib_ops iwl3945_lib = {
                 .init = iwl3945_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl3945_nic_config,
-                .set_pwr_src = iwl3945_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index c192856bb644..cda4a319ed97 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2268,7 +2268,6 @@ static struct iwl_lib_ops iwl4965_lib = {
                 .init = iwl_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl4965_nic_config,
-                .set_pwr_src = iwl_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 084271e5e468..c90a16cdfaff 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -370,7 +370,6 @@ static struct iwl_lib_ops iwl5000_lib = {
                 .init = iwl_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl5000_nic_config,
-                .set_pwr_src = iwl_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
@@ -440,7 +439,6 @@ static struct iwl_lib_ops iwl5150_lib = {
                 .init = iwl_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl5000_nic_config,
-                .set_pwr_src = iwl_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 84f181443f02..02103a7ae1df 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -310,7 +310,6 @@ static struct iwl_lib_ops iwl6000_lib = {
                 .init = iwl_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl6000_nic_config,
-                .set_pwr_src = iwl_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
@@ -383,7 +382,6 @@ static struct iwl_lib_ops iwl6000g2b_lib = {
                 .init = iwl_apm_init,
                 .stop = iwl_apm_stop,
                 .config = iwl6000_nic_config,
-                .set_pwr_src = iwl_set_pwr_src,
         },
         .eeprom_ops = {
                 .regulatory_bands = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index ff5f2fc4d6d9..0ad0d44893ab 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -685,6 +685,23 @@ int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
         return 0;
 }
 
+static void iwlagn_set_pwr_vmain(struct iwl_priv *priv)
+{
+/*
+ * (for documentation purposes)
+ * to set power to V_AUX, do:
+
+                if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
+                        iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+                                               APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+                                               ~APMG_PS_CTRL_MSK_PWR_SRC);
+ */
+
+        iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+                               APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+                               ~APMG_PS_CTRL_MSK_PWR_SRC);
+}
+
 int iwlagn_hw_nic_init(struct iwl_priv *priv)
 {
         unsigned long flags;
@@ -700,7 +717,7 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv)
 
         spin_unlock_irqrestore(&priv->lock, flags);
 
-        ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
+        iwlagn_set_pwr_vmain(priv);
 
         priv->cfg->ops->lib->apm_ops.config(priv);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 8233c6410411..75472a3d87de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -935,22 +935,6 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
                 wake_up_interruptible(&priv->wait_command_queue);
 }
 
-int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
-{
-        if (src == IWL_PWR_SRC_VAUX) {
-                if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
-                        iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
-                                               APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
-                                               ~APMG_PS_CTRL_MSK_PWR_SRC);
-        } else {
-                iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
-                                       APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
-                                       ~APMG_PS_CTRL_MSK_PWR_SRC);
-        }
-
-        return 0;
-}
-
 static void iwl_bg_tx_flush(struct work_struct *work)
 {
         struct iwl_priv *priv =
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index f3c3d8531505..ae77279d3d98 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -119,7 +119,6 @@ struct iwl_apm_ops {
         int (*init)(struct iwl_priv *priv);
         void (*stop)(struct iwl_priv *priv);
         void (*config)(struct iwl_priv *priv);
-        int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
 };
 
 struct iwl_debugfs_ops {
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 2b04714c3a9c..2c57dbd2de19 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -282,13 +282,6 @@ struct iwl_channel_info {
  */
 #define IWL_IPAN_MCAST_QUEUE            8
 
-/* Power management (not Tx power) structures */
-
-enum iwl_pwr_src {
-        IWL_PWR_SRC_VMAIN,
-        IWL_PWR_SRC_VAUX,
-};
-
 #define IEEE80211_DATA_LEN              2304
 #define IEEE80211_4ADDR_LEN             30
 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
@@ -732,7 +725,6 @@ struct iwl_hw_params {
  *
  ****************************************************************************/
 extern void iwl_update_chain_flags(struct iwl_priv *priv);
-extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 extern const u8 iwl_bcast_addr[ETH_ALEN];
 extern int iwl_rxq_stop(struct iwl_priv *priv);
 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);