static int read_pod(struct zd_chip *chip, u8 *rf_type)
{
	int r;
	u32 value;

	ZD_ASSERT(mutex_is_locked(&chip->mutex));
	r = zd_ioread32_locked(chip, &value, E2P_POD);
	if (r)
		goto error;
	dev_dbg_f(zd_chip_dev(chip), "E2P_POD %#010x\n", value);

	/* FIXME: AL2230 handling (Bit 7 in POD) */
	*rf_type = value & 0x0f;
	chip->pa_type = (value >> 16) & 0x0f;
	chip->patch_cck_gain = (value >> 8) & 0x1;
	chip->patch_cr157 = (value >> 13) & 0x1;
	chip->patch_6m_band_edge = (value >> 21) & 0x1;
	chip->new_phy_layout = (value >> 31) & 0x1;
	chip->al2230s_bit = (value >> 7) & 0x1;
	chip->link_led = ((value >> 4) & 1) ? LED1 : LED2;
	chip->supports_tx_led = 1;
	if (value & (1 << 24)) { /* LED scenario */
		if (value & (1 << 29))
			chip->supports_tx_led = 0;
	}

	dev_dbg_f(zd_chip_dev(chip),
		"RF %s %#01x PA type %#01x patch CCK %d patch CR157 %d "
		"patch 6M %d new PHY %d link LED%d tx led %d\n",
		zd_rf_name(*rf_type), *rf_type,
		chip->pa_type, chip->patch_cck_gain,
		chip->patch_cr157, chip->patch_6m_band_edge,
		chip->new_phy_layout,
		chip->link_led == LED1 ? 1 : 2,
		chip->supports_tx_led);
	return 0;
error:
	*rf_type = 0;
	chip->pa_type = 0;
	chip->patch_cck_gain = 0;
	chip->patch_cr157 = 0;
	chip->patch_6m_band_edge = 0;
	chip->new_phy_layout = 0;
	return r;
}
int zd_rf_init_hw(struct zd_rf *rf, u8 type)
{
	int r = 0;
	int t;
	struct zd_chip *chip = zd_rf_to_chip(rf);

	ZD_ASSERT(mutex_is_locked(&chip->mutex));
	switch (type) {
	case RF2959_RF:
		r = zd_rf_init_rf2959(rf);
		break;
	case AL2230_RF:
	case AL2230S_RF:
		r = zd_rf_init_al2230(rf);
		break;
	case AL7230B_RF:
		r = zd_rf_init_al7230b(rf);
		break;
	case MAXIM_NEW_RF:
	case UW2453_RF:
		r = zd_rf_init_uw2453(rf);
		break;
	default:
		dev_err(zd_chip_dev(chip),
			"RF %s %#x is not supported\n", zd_rf_name(type), type);
		rf->type = 0;
		return -ENODEV;
	}

	if (r)
		return r;

	rf->type = type;

	r = zd_chip_lock_phy_regs(chip);
	if (r)
		return r;
	t = rf->init_hw(rf);
	r = zd_chip_unlock_phy_regs(chip);
	if (t)
		r = t;
	return r;
}
int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size)
{
	return scnprintf(buffer, size, "%s", zd_rf_name(rf->type));
}