From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sat, 6 Aug 2011 10:55:18 +0000 (-0500)
Subject: rtlwifi: Eliminate raw reads and writes from PCIe portion
X-Git-Tag: firefly_0821_release~3680^2~4273^2~254^2~332
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=886e14b65a8fcaedd72cf5f5c4c76e69de028a0f;p=firefly-linux-kernel-4.4.55.git

rtlwifi: Eliminate raw reads and writes from PCIe portion

The PCIe driver used raw reads and writes on the PCIe hardware.
As all of these are only affecting the configuration space, all of
then can be converted to pci_{read,write}_config_XX calls.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 56f12358389d..9983fa18065a 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -218,7 +218,6 @@ static void rtl_pci_disable_aspm(struct ieee80211_hw *hw)
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
-	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 	u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
 	/*Retrieve original configuration settings. */
 	u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg;
@@ -254,9 +253,8 @@ static void rtl_pci_disable_aspm(struct ieee80211_hw *hw)
 	udelay(50);
 
 	/*4 Disable Pci Bridge ASPM */
-	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
-				     pcicfg_addrport + (num4bytes << 2));
-	rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, pcibridge_linkctrlreg);
+	pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
+			      pcibridge_linkctrlreg);
 
 	udelay(50);
 }
@@ -277,7 +275,6 @@ static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 	u8 pcibridge_devnum = pcipriv->ndis_adapter.pcibridge_devnum;
 	u8 pcibridge_funcnum = pcipriv->ndis_adapter.pcibridge_funcnum;
 	u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
-	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 	u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
 	u16 aspmlevel;
 	u8 u_pcibridge_aspmsetting;
@@ -293,8 +290,6 @@ static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 	}
 
 	/*4 Enable Pci Bridge ASPM */
-	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
-				     pcicfg_addrport + (num4bytes << 2));
 
 	u_pcibridge_aspmsetting =
 	    pcipriv->ndis_adapter.pcibridge_linkctrlreg |
@@ -303,7 +298,8 @@ static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 	if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL)
 		u_pcibridge_aspmsetting &= ~BIT(0);
 
-	rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, u_pcibridge_aspmsetting);
+	pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
+			      u_pcibridge_aspmsetting);
 
 	RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 		 ("PlatformEnableASPM():PciBridge busnumber[%x], "
@@ -335,25 +331,18 @@ static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 
 static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
 {
-	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
-	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
 	bool status = false;
 	u8 offset_e0;
 	unsigned offset_e4;
 
-	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
-			pcicfg_addrport + 0xE0);
-	rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 0xA0);
+	pci_write_config_byte(rtlpci->pdev, 0xe0, 0xa0);
 
-	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
-			pcicfg_addrport + 0xE0);
-	rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &offset_e0);
+	pci_read_config_byte(rtlpci->pdev, 0xe0, &offset_e0);
 
 	if (offset_e0 == 0xA0) {
-		rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
-					     pcicfg_addrport + 0xE4);
-		rtl_pci_raw_read_port_ulong(PCI_CONF_DATA, &offset_e4);
+		pci_read_config_dword(rtlpci->pdev, 0xe4, &offset_e4);
 		if (offset_e4 & BIT(23))
 			status = true;
 	}
@@ -364,17 +353,15 @@ static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
 static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw)
 {
 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
+	struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
 	u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
-	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 	u8 linkctrl_reg;
 	u8 num4bbytes;
 
 	num4bbytes = (capabilityoffset + 0x10) / 4;
 
 	/*Read  Link Control Register */
-	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
-				     pcicfg_addrport + (num4bbytes << 2));
-	rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &linkctrl_reg);
+	pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &linkctrl_reg);
 
 	pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg;
 }
@@ -1718,10 +1705,6 @@ static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
 		    PCI_SLOT(bridge_pdev->devfn);
 		pcipriv->ndis_adapter.pcibridge_funcnum =
 		    PCI_FUNC(bridge_pdev->devfn);
-		pcipriv->ndis_adapter.pcicfg_addrport =
-		    (pcipriv->ndis_adapter.pcibridge_busnum << 16) |
-		    (pcipriv->ndis_adapter.pcibridge_devnum << 11) |
-		    (pcipriv->ndis_adapter.pcibridge_funcnum << 8) | (1 << 31);
 		pcipriv->ndis_adapter.pcibridge_pciehdr_offset =
 		    pci_pcie_cap(bridge_pdev);
 		pcipriv->ndis_adapter.num4bytes =