iwlwifi: kill bus_apm_config

This handler was called from the transport layer only. Merge it
to the transport's apm_init.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-bus.h b/drivers/net/wireless/iwlwifi/iwl-bus.h
index 2065c5b741629ea4779bd3c8b67b36145ccdf3e5..d385f692ef1186e65df3fff54e41df80c4bd2a8a 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-bus.h
+++ b/drivers/net/wireless/iwlwifi/iwl-bus.h
@@ -121,13 +121,11 @@ struct iwl_bus;
 /**
  * struct iwl_bus_ops - bus specific operations
  * @get_pm_support: must returns true if the bus can go to sleep
- * @apm_config: will be called during the config of the APM
  * @get_hw_id_string: prints the hw_id in the provided buffer
  * @get_hw_id: get hw_id in u32
  */
 struct iwl_bus_ops {
        bool (*get_pm_support)(struct iwl_bus *bus);
-       void (*apm_config)(struct iwl_bus *bus);
        void (*get_hw_id_string)(struct iwl_bus *bus, char buf[], int buf_len);
        u32 (*get_hw_id)(struct iwl_bus *bus);
 };
@@ -156,11 +154,6 @@ static inline bool bus_get_pm_support(struct iwl_bus *bus)
        return bus->ops->get_pm_support(bus);
 }
 
-static inline void bus_apm_config(struct iwl_bus *bus)
-{
-       bus->ops->apm_config(bus);
-}
-
 static inline void bus_get_hw_id_string(struct iwl_bus *bus, char buf[],
                int buf_len)
 {

diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c
index 6451739aed2eac47f72155bba7846312aa55bb33..353022d406eae583c0a07506eeb145e269dc1c4e 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-pci.c
+++ b/drivers/net/wireless/iwlwifi/iwl-pci.c
@@ -106,34 +106,6 @@ static bool iwl_pci_is_pm_supported(struct iwl_bus *bus)
        return !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
 }
 
-static void iwl_pci_apm_config(struct iwl_bus *bus)
-{
-       /*
-        * HW bug W/A for instability in PCIe bus L0S->L1 transition.
-        * Check if BIOS (or OS) enabled L1-ASPM on this device.
-        * If so (likely), disable L0S, so device moves directly L0->L1;
-        *    costs negligible amount of power savings.
-        * If not (unlikely), enable L0S, so there is at least some
-        *    power savings, even without L1.
-        */
-       u16 lctl = iwl_pciexp_link_ctrl(bus);
-
-       if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
-                               PCI_CFG_LINK_CTRL_VAL_L1_EN) {
-               /* L1-ASPM enabled; disable(!) L0S */
-               iwl_set_bit(trans(bus), CSR_GIO_REG,
-                               CSR_GIO_REG_VAL_L0S_ENABLED);
-               dev_printk(KERN_INFO, trans(bus)->dev,
-                          "L1 Enabled; Disabling L0S\n");
-       } else {
-               /* L1-ASPM disabled; enable(!) L0S */
-               iwl_clear_bit(trans(bus), CSR_GIO_REG,
-                               CSR_GIO_REG_VAL_L0S_ENABLED);
-               dev_printk(KERN_INFO, trans(bus)->dev,
-                          "L1 Disabled; Enabling L0S\n");
-       }
-}
-
 static void iwl_pci_get_hw_id_string(struct iwl_bus *bus, char buf[],
                              int buf_len)
 {
@@ -152,7 +124,6 @@ static u32 iwl_pci_get_hw_id(struct iwl_bus *bus)
 
 static const struct iwl_bus_ops bus_ops_pci = {
        .get_pm_support = iwl_pci_is_pm_supported,
-       .apm_config = iwl_pci_apm_config,
        .get_hw_id_string = iwl_pci_get_hw_id_string,
        .get_hw_id = iwl_pci_get_hw_id,
 };

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
index 1030a2524059f74aa760b5f6462dbe6f35c5741f..c9fe8889ad8259f0f45f2a7c9e8dd8968f5ad31f 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -633,6 +633,51 @@ static void iwl_set_pwr_vmain(struct iwl_trans *trans)
                               ~APMG_PS_CTRL_MSK_PWR_SRC);
 }
 
+/* PCI registers */
+#define PCI_CFG_RETRY_TIMEOUT  0x041
+#define PCI_CFG_LINK_CTRL_VAL_L0S_EN   0x01
+#define PCI_CFG_LINK_CTRL_VAL_L1_EN    0x02
+
+static u16 iwl_pciexp_link_ctrl(struct iwl_trans *trans)
+{
+       int pos;
+       u16 pci_lnk_ctl;
+       struct iwl_trans_pcie *trans_pcie =
+               IWL_TRANS_GET_PCIE_TRANS(trans);
+
+       struct pci_dev *pci_dev = trans_pcie->pci_dev;
+
+       pos = pci_pcie_cap(pci_dev);
+       pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
+       return pci_lnk_ctl;
+}
+
+static void iwl_apm_config(struct iwl_trans *trans)
+{
+       /*
+        * HW bug W/A for instability in PCIe bus L0S->L1 transition.
+        * Check if BIOS (or OS) enabled L1-ASPM on this device.
+        * If so (likely), disable L0S, so device moves directly L0->L1;
+        *    costs negligible amount of power savings.
+        * If not (unlikely), enable L0S, so there is at least some
+        *    power savings, even without L1.
+        */
+       u16 lctl = iwl_pciexp_link_ctrl(trans);
+
+       if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
+                               PCI_CFG_LINK_CTRL_VAL_L1_EN) {
+               /* L1-ASPM enabled; disable(!) L0S */
+               iwl_set_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
+               dev_printk(KERN_INFO, trans->dev,
+                          "L1 Enabled; Disabling L0S\n");
+       } else {
+               /* L1-ASPM disabled; enable(!) L0S */
+               iwl_clear_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
+               dev_printk(KERN_INFO, trans->dev,
+                          "L1 Disabled; Enabling L0S\n");
+       }
+}
+
 /*
  * Start up NIC's basic functionality after it has been reset
  * (e.g. after platform boot, or shutdown via iwl_apm_stop())
@@ -669,7 +714,7 @@ static int iwl_apm_init(struct iwl_trans *trans)
        iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
                                    CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
 
-       bus_apm_config(bus(trans));
+       iwl_apm_config(trans);
 
        /* Configure analog phase-lock-loop before activating to D0A */
        if (cfg(trans)->base_params->pll_cfg_val)
@@ -2187,9 +2232,6 @@ const struct iwl_trans_ops trans_ops_pcie = {
        .read32 = iwl_trans_pcie_read32,
 };
 
-/* PCI registers */
-#define PCI_CFG_RETRY_TIMEOUT  0x041
-
 struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd,
                                       struct pci_dev *pdev,
                                       const struct pci_device_id *ent)