rt2x00: Move Move pci_dev specific access to rt2x00pci

pci_dev->irq and pci_name(pci_dev) access should be limited
to rt2x00pci only. This is more generic and allows a rt2x00 pci
driver to be controlled as PCI device but also as platform driver
(needed for rt2800pci SoC support).

Signed-off-by: Felix Fietkau <[e-mail]>
Signed-off-by: Ivo van Doorn <[e-mail]>
Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/rt2x00/rt2400pci.c

···
 	 */
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
 	rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
-	rt2x00_set_chip(rt2x00dev, RT2460, value, reg);
+	rt2x00_set_chip_rf(rt2x00dev, value, reg);
 
 	if (!rt2x00_rf(&rt2x00dev->chip, RF2420) &&
 	    !rt2x00_rf(&rt2x00dev->chip, RF2421)) {

drivers/net/wireless/rt2x00/rt2500pci.c

···
 	 */
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
 	rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
-	rt2x00_set_chip(rt2x00dev, RT2560, value, reg);
+	rt2x00_set_chip_rf(rt2x00dev, value, reg);
 
 	if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
 	    !rt2x00_rf(&rt2x00dev->chip, RF2523) &&

drivers/net/wireless/rt2x00/rt2x00.h

···
 	unsigned long flags;
 
 	/*
+	 * Device information, Bus IRQ and name (PCI, SoC)
+	 */
+	int irq;
+	const char *name;
+
+	/*
 	 * Chipset identification.
 	 */
 	struct rt2x00_chip chip;
···
 	rt2x00dev->chip.rt = rt;
 	rt2x00dev->chip.rf = rf;
 	rt2x00dev->chip.rev = rev;
+}
+
+static inline void rt2x00_set_chip_rt(struct rt2x00_dev *rt2x00dev,
+				      const u16 rt)
+{
+	rt2x00dev->chip.rt = rt;
+}
+
+static inline void rt2x00_set_chip_rf(struct rt2x00_dev *rt2x00dev,
+				      const u16 rf, const u32 rev)
+{
+	rt2x00_set_chip(rt2x00dev, rt2x00dev->chip.rt, rf, rev);
 }
 
 static inline char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip)

drivers/net/wireless/rt2x00/rt2x00pci.c

···
 
 int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
 {
-	struct pci_dev *pci_dev = to_pci_dev(rt2x00dev->dev);
 	struct data_queue *queue;
 	int status;
 
···
 	/*
 	 * Register interrupt handler.
 	 */
-	status = request_irq(pci_dev->irq, rt2x00dev->ops->lib->irq_handler,
-			     IRQF_SHARED, pci_name(pci_dev), rt2x00dev);
+	status = request_irq(rt2x00dev->irq, rt2x00dev->ops->lib->irq_handler,
+			     IRQF_SHARED, rt2x00dev->name, rt2x00dev);
 	if (status) {
 		ERROR(rt2x00dev, "IRQ %d allocation failed (error %d).\n",
-		      pci_dev->irq, status);
+		      rt2x00dev->irq, status);
 		goto exit;
 	}
 
···
 	struct ieee80211_hw *hw;
 	struct rt2x00_dev *rt2x00dev;
 	int retval;
+	u16 chip;
 
 	retval = pci_request_regions(pci_dev, pci_name(pci_dev));
 	if (retval) {
···
 	rt2x00dev->dev = &pci_dev->dev;
 	rt2x00dev->ops = ops;
 	rt2x00dev->hw = hw;
+	rt2x00dev->irq = pci_dev->irq;
+	rt2x00dev->name = pci_name(pci_dev);
+
+	/*
+	 * Determine RT chipset by reading PCI header.
+	 */
+	pci_read_config_word(pci_dev, PCI_DEVICE_ID, &chip);
+	rt2x00_set_chip_rt(rt2x00dev, chip);
 
 	retval = rt2x00pci_alloc_reg(rt2x00dev);
 	if (retval)

drivers/net/wireless/rt2x00/rt61pci.c

···
 	u32 reg;
 	u16 value;
 	u16 eeprom;
-	u16 device;
 
 	/*
 	 * Read EEPROM word for configuration.
···
 
 	/*
 	 * Identify RF chipset.
-	 * To determine the RT chip we have to read the
-	 * PCI header of the device.
 	 */
-	pci_read_config_word(to_pci_dev(rt2x00dev->dev),
-			     PCI_CONFIG_HEADER_DEVICE, &device);
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
 	rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
-	rt2x00_set_chip(rt2x00dev, device, value, reg);
+	rt2x00_set_chip_rf(rt2x00dev, value, reg);
 
 	if (!rt2x00_rf(&rt2x00dev->chip, RF5225) &&
 	    !rt2x00_rf(&rt2x00dev->chip, RF5325) &&

drivers/net/wireless/rt2x00/rt61pci.h

···
  */
 
 /*
- * PCI Configuration Header
- */
-#define PCI_CONFIG_HEADER_VENDOR	0x0000
-#define PCI_CONFIG_HEADER_DEVICE	0x0002
-
-/*
  * HOST_CMD_CSR: For HOST to interrupt embedded processor
  */
 #define HOST_CMD_CSR			0x0008