firewire: ohci: add a function for reading PHY registers

	reg_read(ohci, OHCI1394_Version);

}

static int ohci_update_phy_reg(struct fw_card *card, int addr,

			       int clear_bits, int set_bits)

static int read_phy_reg(struct fw_card *card, int addr, u32 *value)

{

	struct fw_ohci *ohci = fw_ohci(card);

	u32 val, old;

	u32 val;

	reg_write(ohci, OHCI1394_PhyControl, OHCI1394_PhyControl_Read(addr));

	flush_writes(ohci);

	msleep(2);

	val = reg_read(ohci, OHCI1394_PhyControl);

	if ((val & OHCI1394_PhyControl_ReadDone) == 0) {

		fw_error("failed to set phy reg bits.\n");

		fw_error("failed to read phy reg bits\n");

		return -EBUSY;

	}

	old = OHCI1394_PhyControl_ReadData(val);

	*value = OHCI1394_PhyControl_ReadData(val);

	return 0;

}

static int ohci_update_phy_reg(struct fw_card *card, int addr,

			       int clear_bits, int set_bits)

{

	struct fw_ohci *ohci = fw_ohci(card);

	u32 old;

	int err;

	err = read_phy_reg(card, addr, &old);

	if (err < 0)

		return err;

	old = (old & ~clear_bits) | set_bits;

	reg_write(ohci, OHCI1394_PhyControl,

		  OHCI1394_PhyControl_Write(addr, old));