static int mxs_saif_set_clk(struct mxs_saif *saif,
				  unsigned int mclk,
				  unsigned int rate)
{
	u32 scr;
	int ret;
	struct mxs_saif *master_saif;

	dev_dbg(saif->dev, "mclk %d rate %d\n", mclk, rate);

	/*                                          */
	master_saif = mxs_saif_get_master(saif);
	if (!master_saif)
		return -EINVAL;

	dev_dbg(saif->dev, "master saif%d\n", master_saif->id);

	/*                                                    */
	if (master_saif->ongoing && rate != master_saif->cur_rate) {
		dev_err(saif->dev,
			"can not change clock, master saif%d(rate %d) is ongoing\n",
			master_saif->id, master_saif->cur_rate);
		return -EINVAL;
	}

	scr = __raw_readl(master_saif->base + SAIF_CTRL);
	scr &= ~BM_SAIF_CTRL_BITCLK_MULT_RATE;
	scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;

	/*
                  
   
                                                     
                                                                 
                                          
                                          
   
                                                        
  */
	clk_prepare_enable(master_saif->clk);

	if (master_saif->mclk_in_use) {
		if (mclk % 32 == 0) {
			scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
			ret = clk_set_rate(master_saif->clk, 512 * rate);
		} else if (mclk % 48 == 0) {
			scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE;
			ret = clk_set_rate(master_saif->clk, 384 * rate);
		} else {
			/*                                       */
			clk_disable_unprepare(master_saif->clk);
			return -EINVAL;
		}
	} else {
		ret = clk_set_rate(master_saif->clk, 512 * rate);
		scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
	}

	clk_disable_unprepare(master_saif->clk);

	if (ret)
		return ret;

	master_saif->cur_rate = rate;

	if (!master_saif->mclk_in_use) {
		__raw_writel(scr, master_saif->base + SAIF_CTRL);
		return 0;
	}

	/*
                                                
   
                                                          
                                
  */
	switch (mclk / rate) {
	case 32:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(4);
		break;
	case 64:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(3);
		break;
	case 128:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(2);
		break;
	case 256:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(1);
		break;
	case 512:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(0);
		break;
	case 48:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(3);
		break;
	case 96:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(2);
		break;
	case 192:
		scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(1);
//.........这里部分代码省略.........

static irqreturn_t atmel_ac97c_interrupt(int irq, void *dev)
{
	struct atmel_ac97c	*chip  = (struct atmel_ac97c *)dev;
	irqreturn_t		retval = IRQ_NONE;
	u32			sr     = ac97c_readl(chip, SR);
	u32			casr   = ac97c_readl(chip, CASR);
	u32			cosr   = ac97c_readl(chip, COSR);
	u32			camr   = ac97c_readl(chip, CAMR);

	if (sr & AC97C_SR_CAEVT) {
		struct snd_pcm_runtime *runtime;
		int offset, next_period, block_size;
		dev_dbg(&chip->pdev->dev, "channel A event%s%s%s%s%s%s\n",
				casr & AC97C_CSR_OVRUN   ? " OVRUN"   : "",
				casr & AC97C_CSR_RXRDY   ? " RXRDY"   : "",
				casr & AC97C_CSR_UNRUN   ? " UNRUN"   : "",
				casr & AC97C_CSR_TXEMPTY ? " TXEMPTY" : "",
				casr & AC97C_CSR_TXRDY   ? " TXRDY"   : "",
				!casr                    ? " NONE"    : "");
		if (!cpu_is_at32ap7000()) {
			if ((casr & camr) & AC97C_CSR_ENDTX) {
				runtime = chip->playback_substream->runtime;
				block_size = frames_to_bytes(runtime,
						runtime->period_size);
				chip->playback_period++;

				if (chip->playback_period == runtime->periods)
					chip->playback_period = 0;
				next_period = chip->playback_period + 1;
				if (next_period == runtime->periods)
					next_period = 0;

				offset = block_size * next_period;

				writel(runtime->dma_addr + offset,
						chip->regs + ATMEL_PDC_TNPR);
				writel(block_size / 2,
						chip->regs + ATMEL_PDC_TNCR);

				snd_pcm_period_elapsed(
						chip->playback_substream);
			}
			if ((casr & camr) & AC97C_CSR_ENDRX) {
				runtime = chip->capture_substream->runtime;
				block_size = frames_to_bytes(runtime,
						runtime->period_size);
				chip->capture_period++;

				if (chip->capture_period == runtime->periods)
					chip->capture_period = 0;
				next_period = chip->capture_period + 1;
				if (next_period == runtime->periods)
					next_period = 0;

				offset = block_size * next_period;

				writel(runtime->dma_addr + offset,
						chip->regs + ATMEL_PDC_RNPR);
				writel(block_size / 2,
						chip->regs + ATMEL_PDC_RNCR);
				snd_pcm_period_elapsed(chip->capture_substream);
			}
		}
		retval = IRQ_HANDLED;
	}

	if (sr & AC97C_SR_COEVT) {
		dev_info(&chip->pdev->dev, "codec channel event%s%s%s%s%s\n",
				cosr & AC97C_CSR_OVRUN   ? " OVRUN"   : "",
				cosr & AC97C_CSR_RXRDY   ? " RXRDY"   : "",
				cosr & AC97C_CSR_TXEMPTY ? " TXEMPTY" : "",
				cosr & AC97C_CSR_TXRDY   ? " TXRDY"   : "",
				!cosr                    ? " NONE"    : "");
		retval = IRQ_HANDLED;
	}

	if (retval == IRQ_NONE) {
		dev_err(&chip->pdev->dev, "spurious interrupt sr 0x%08x "
				"casr 0x%08x cosr 0x%08x\n", sr, casr, cosr);
	}

	return retval;
}

/* size of returned buffer is part of USB spec */
static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
			u16 wIndex, char *buf, u16 wLength)
{
	struct uhci_hcd *uhci = hcd_to_uhci(hcd);
	int status, lstatus, retval = 0, len = 0;
	unsigned int port = wIndex - 1;
	unsigned long port_addr = uhci->io_addr + USBPORTSC1 + 2 * port;
	u16 wPortChange, wPortStatus;
	unsigned long flags;

	if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) || uhci->dead)
		return -ETIMEDOUT;

	spin_lock_irqsave(&uhci->lock, flags);
	switch (typeReq) {

	case GetHubStatus:
		*(__le32 *)buf = cpu_to_le32(0);
		OK(4);		/* hub power */
	case GetPortStatus:
		if (port >= uhci->rh_numports)
			goto err;

		uhci_check_ports(uhci);
		status = inw(port_addr);

		/* Intel controllers report the OverCurrent bit active on.
		 * VIA controllers report it active off, so we'll adjust the
		 * bit value.  (It's not standardized in the UHCI spec.)
		 */
		if (to_pci_dev(hcd->self.controller)->vendor ==
				PCI_VENDOR_ID_VIA)
			status ^= USBPORTSC_OC;

		/* UHCI doesn't support C_RESET (always false) */
		wPortChange = lstatus = 0;
		if (status & USBPORTSC_CSC)
			wPortChange |= USB_PORT_STAT_C_CONNECTION;
		if (status & USBPORTSC_PEC)
			wPortChange |= USB_PORT_STAT_C_ENABLE;
		if ((status & USBPORTSC_OCC) && !ignore_oc)
			wPortChange |= USB_PORT_STAT_C_OVERCURRENT;

		if (test_bit(port, &uhci->port_c_suspend)) {
			wPortChange |= USB_PORT_STAT_C_SUSPEND;
			lstatus |= 1;
		}
		if (test_bit(port, &uhci->resuming_ports))
			lstatus |= 4;

		/* UHCI has no power switching (always on) */
		wPortStatus = USB_PORT_STAT_POWER;
		if (status & USBPORTSC_CCS)
			wPortStatus |= USB_PORT_STAT_CONNECTION;
		if (status & USBPORTSC_PE) {
			wPortStatus |= USB_PORT_STAT_ENABLE;
			if (status & SUSPEND_BITS)
				wPortStatus |= USB_PORT_STAT_SUSPEND;
		}
		if (status & USBPORTSC_OC)
			wPortStatus |= USB_PORT_STAT_OVERCURRENT;
		if (status & USBPORTSC_PR)
			wPortStatus |= USB_PORT_STAT_RESET;
		if (status & USBPORTSC_LSDA)
			wPortStatus |= USB_PORT_STAT_LOW_SPEED;

		if (wPortChange)
			dev_dbg(uhci_dev(uhci), "port %d portsc %04x,%02x\n",
					wIndex, status, lstatus);

		*(__le16 *)buf = cpu_to_le16(wPortStatus);
		*(__le16 *)(buf + 2) = cpu_to_le16(wPortChange);
		OK(4);
	case SetHubFeature:		/* We don't implement these */
	case ClearHubFeature:
		switch (wValue) {
		case C_HUB_OVER_CURRENT:
		case C_HUB_LOCAL_POWER:
			OK(0);
		default:
			goto err;
		}
		break;
	case SetPortFeature:
		if (port >= uhci->rh_numports)
			goto err;

		switch (wValue) {
		case USB_PORT_FEAT_SUSPEND:
			SET_RH_PORTSTAT(USBPORTSC_SUSP);
			OK(0);
		case USB_PORT_FEAT_RESET:
			SET_RH_PORTSTAT(USBPORTSC_PR);

			/* Reset terminates Resume signalling */
			uhci_finish_suspend(uhci, port, port_addr);

			/* USB v2.0 7.1.7.5 */
			uhci->ports_timeout = jiffies + msecs_to_jiffies(50);
//.........这里部分代码省略.........

static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *data, int read_write)
{
	int i, len = 0, rc = 0;
	u8 oldclock = 0;

	if (read_write == I2C_SMBUS_WRITE) {
		len = data->block[0];
		if (len < 0)
			len = 0;
		else if (len > 32)
			len = 32;
		sis630_write(SMB_COUNT, len);
		for (i=1; i <= len; i++) {
			dev_dbg(&adap->dev, "set data 0x%02x\n", data->block[i]);
			/* set data */
			sis630_write(SMB_BYTE+(i-1)%8, data->block[i]);
			if (i==8 || (len<8 && i==len)) {
				dev_dbg(&adap->dev, "start trans len=%d i=%d\n",len ,i);
				/* first transaction */
				if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock))
					return -1;
			}
			else if ((i-1)%8 == 7 || i==len) {
				dev_dbg(&adap->dev, "trans_wait len=%d i=%d\n",len,i);
				if (i>8) {
					dev_dbg(&adap->dev, "clear smbary_sts len=%d i=%d\n",len,i);
					/*
					   If this is not first transaction,
					   we must clear sticky bit.
					   clear SMBARY_STS
					*/
					sis630_write(SMB_STS,0x10);
				}
				if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
					dev_dbg(&adap->dev, "trans_wait failed\n");
					rc = -1;
					break;
				}
			}
		}
	}
	else {
		/* read request */
		data->block[0] = len = 0;
		if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock)) {
			return -1;
		}
		do {
			if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
				dev_dbg(&adap->dev, "trans_wait failed\n");
				rc = -1;
				break;
			}
			/* if this first transaction then read byte count */
			if (len == 0)
				data->block[0] = sis630_read(SMB_COUNT);

			/* just to be sure */
			if (data->block[0] > 32)
				data->block[0] = 32;

			dev_dbg(&adap->dev, "block data read len=0x%x\n", data->block[0]);

			for (i=0; i < 8 && len < data->block[0]; i++,len++) {
				dev_dbg(&adap->dev, "read i=%d len=%d\n", i, len);
				data->block[len+1] = sis630_read(SMB_BYTE+i);
			}

			dev_dbg(&adap->dev, "clear smbary_sts len=%d i=%d\n",len,i);

			/* clear SMBARY_STS */
			sis630_write(SMB_STS,0x10);
		} while(len < data->block[0]);
	}

	sis630_transaction_end(adap, oldclock);

	return rc;
}

static int ltr558_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
{
	int ret = 0;
	struct ltr558_chip *chip;
	struct iio_dev *indio_dev;

	/* data memory allocation */
	indio_dev = iio_device_alloc(sizeof(*chip));
	if (indio_dev == NULL) {
		dev_err(&client->dev, "iio allocation fails\n");
		ret = -ENOMEM;
		goto exit;
	}
	chip = iio_priv(indio_dev);

	i2c_set_clientdata(client, indio_dev);
	chip->client = client;
	chip->irq = client->irq;

	if (chip->irq > 0) {
		ret = request_threaded_irq(chip->irq, NULL, threshold_isr,
						IRQF_SHARED, "LTR558_ALS", chip);
		if (ret) {
			dev_err(&client->dev, "Unable to register irq %d; "
				"ret %d\n", chip->irq, ret);
			goto exit_iio_free;
		}
	}

	mutex_init(&chip->lock);

	ret = ltr558_chip_init(client);
	if (ret)
		goto exit_irq;

	indio_dev->info = &ltr558_info;
	indio_dev->dev.parent = &client->dev;
	indio_dev->modes = INDIO_DIRECT_MODE;
	ret = iio_device_register(indio_dev);
	if (ret) {
		dev_err(&client->dev, "iio registration fails\n");
		goto exit_irq;
	}

	chip->supply[VDD] = regulator_get(&client->dev, "vdd");

	if (IS_ERR(chip->supply[VDD])) {
		dev_err(&client->dev, "could not get vdd regulator\n");
		ret = PTR_ERR(chip->supply[VDD]);
		goto exit_irq;
	}

	chip->supply[LED] = regulator_get(&client->dev, "vled");

	if (IS_ERR(chip->supply[LED])) {
		dev_err(&client->dev, "could not get vled regulator\n");
		ret = PTR_ERR(chip->supply[LED]);
		goto exit_irq;
	}

	ret = regulator_enable(chip->supply[VDD]);
	if (ret) {
		dev_err(&client->dev,
			"func:%s regulator enable failed\n", __func__);
		goto exit_irq;
	}

	ret = i2c_smbus_read_byte_data(client, LTR558_MANUFACTURER_ID);
	if (ret < 0) {
		dev_err(&client->dev, "Err in reading register %d, error %d\n",
				LTR558_MANUFACTURER_ID, ret);
		goto exit_irq;
	}

	if (ret != LTR_MANUFACTURER_ID) {
		dev_err(&client->dev, "sensor not found\n");
		goto exit_irq;
	}

	ret = regulator_disable(chip->supply[VDD]);
	if (ret) {
		dev_err(&client->dev,
			"func:%s regulator disable failed\n", __func__);
		goto exit_irq;
	}

	dev_dbg(&client->dev, "%s() success\n", __func__);
	return 0;

exit_irq:
	if (chip->irq > 0)
		free_irq(chip->irq, chip);
exit_iio_free:
	iio_device_free(indio_dev);
exit:
	return ret;
}

static int synquacer_i2c_probe(struct platform_device *pdev)
{
	struct synquacer_i2c *i2c;
	struct resource *r;
	u32 bus_speed;
	int ret;

	i2c = devm_kzalloc(&pdev->dev, sizeof(*i2c), GFP_KERNEL);
	if (!i2c)
		return -ENOMEM;

	bus_speed = i2c_acpi_find_bus_speed(&pdev->dev);
	if (!bus_speed)
		device_property_read_u32(&pdev->dev, "clock-frequency",
					 &bus_speed);

	device_property_read_u32(&pdev->dev, "socionext,pclk-rate",
				 &i2c->pclkrate);

	i2c->pclk = devm_clk_get(&pdev->dev, "pclk");
	if (IS_ERR(i2c->pclk) && PTR_ERR(i2c->pclk) == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (!IS_ERR_OR_NULL(i2c->pclk)) {
		dev_dbg(&pdev->dev, "clock source %p\n", i2c->pclk);

		ret = clk_prepare_enable(i2c->pclk);
		if (ret) {
			dev_err(&pdev->dev, "failed to enable clock (%d)\n",
				ret);
			return ret;
		}
		i2c->pclkrate = clk_get_rate(i2c->pclk);
	}

	if (i2c->pclkrate < SYNQUACER_I2C_MIN_CLK_RATE ||
	    i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE) {
		dev_err(&pdev->dev, "PCLK missing or out of range (%d)\n",
			i2c->pclkrate);
		return -EINVAL;
	}

	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	i2c->base = devm_ioremap_resource(&pdev->dev, r);
	if (IS_ERR(i2c->base))
		return PTR_ERR(i2c->base);

	i2c->irq = platform_get_irq(pdev, 0);
	if (i2c->irq < 0) {
		dev_err(&pdev->dev, "no IRQ resource found\n");
		return -ENODEV;
	}

	ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
			       0, dev_name(&pdev->dev), i2c);
	if (ret < 0) {
		dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
		return ret;
	}

	i2c->state = STATE_IDLE;
	i2c->dev = &pdev->dev;
	i2c->adapter = synquacer_i2c_ops;
	i2c_set_adapdata(&i2c->adapter, i2c);
	i2c->adapter.dev.parent = &pdev->dev;
	i2c->adapter.nr = pdev->id;
	init_completion(&i2c->completion);

	if (bus_speed < 400000)
		i2c->speed_khz = SYNQUACER_I2C_SPEED_SM;
	else
		i2c->speed_khz = SYNQUACER_I2C_SPEED_FM;

	synquacer_i2c_hw_init(i2c);

	ret = i2c_add_numbered_adapter(&i2c->adapter);
	if (ret) {
		dev_err(&pdev->dev, "failed to add bus to i2c core\n");
		return ret;
	}

	platform_set_drvdata(pdev, i2c);

	dev_info(&pdev->dev, "%s: synquacer_i2c adapter\n",
		 dev_name(&i2c->adapter.dev));

	return 0;
}

static void axp288_charger_extcon_evt_worker(struct work_struct *work)
{
	struct axp288_chrg_info *info =
	    container_of(work, struct axp288_chrg_info, cable.work);
	int ret, current_limit;
	bool changed = false;
	struct extcon_dev *edev = info->cable.edev;
	bool old_connected = info->cable.connected;

	/* Determine cable/charger type */
	if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_SDP) > 0) {
		dev_dbg(&info->pdev->dev, "USB SDP charger  is connected");
		info->cable.connected = true;
		info->cable.chg_type = POWER_SUPPLY_TYPE_USB;
	} else if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_CDP) > 0) {
		dev_dbg(&info->pdev->dev, "USB CDP charger is connected");
		info->cable.connected = true;
		info->cable.chg_type = POWER_SUPPLY_TYPE_USB_CDP;
	} else if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_DCP) > 0) {
		dev_dbg(&info->pdev->dev, "USB DCP charger is connected");
		info->cable.connected = true;
		info->cable.chg_type = POWER_SUPPLY_TYPE_USB_DCP;
	} else {
		if (old_connected)
			dev_dbg(&info->pdev->dev, "USB charger disconnected");
		info->cable.connected = false;
		info->cable.chg_type = POWER_SUPPLY_TYPE_USB;
	}

	/* Cable status changed */
	if (old_connected != info->cable.connected)
		changed = true;

	if (!changed)
		return;

	mutex_lock(&info->lock);

	if (info->is_charger_enabled && !info->cable.connected) {
		info->enable_charger = false;
		ret = axp288_charger_enable_charger(info, info->enable_charger);
		if (ret < 0)
			dev_err(&info->pdev->dev,
				"cannot disable charger (%d)", ret);

	} else if (!info->is_charger_enabled && info->cable.connected) {
		switch (info->cable.chg_type) {
		case POWER_SUPPLY_TYPE_USB:
			current_limit = ILIM_500MA;
			break;
		case POWER_SUPPLY_TYPE_USB_CDP:
			current_limit = ILIM_1500MA;
			break;
		case POWER_SUPPLY_TYPE_USB_DCP:
			current_limit = ILIM_2000MA;
			break;
		default:
			/* Unknown */
			current_limit = 0;
			break;
		}

		/* Set vbus current limit first, then enable charger */
		ret = axp288_charger_set_vbus_inlmt(info, current_limit);
		if (ret < 0) {
			dev_err(&info->pdev->dev,
				"error setting current limit (%d)", ret);
		} else {
			info->enable_charger = (current_limit > 0);
			ret = axp288_charger_enable_charger(info,
							info->enable_charger);
			if (ret < 0)
				dev_err(&info->pdev->dev,
					"cannot enable charger (%d)", ret);
		}
	}

	if (changed)
		info->health = axp288_get_charger_health(info);

	mutex_unlock(&info->lock);

	if (changed)
		power_supply_changed(info->psy_usb);
}

static int axp288_charger_probe(struct platform_device *pdev)
{
	int ret, i, pirq;
	struct axp288_chrg_info *info;
	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
	struct power_supply_config charger_cfg = {};

	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
	if (!info)
		return -ENOMEM;

	info->pdev = pdev;
	info->regmap = axp20x->regmap;
	info->regmap_irqc = axp20x->regmap_irqc;
	info->pdata = pdev->dev.platform_data;

	if (!info->pdata) {
		/* Try ACPI provided pdata via device properties */
		if (!device_property_present(&pdev->dev,
						"axp288_charger_data\n"))
			dev_err(&pdev->dev, "failed to get platform data\n");
		return -ENODEV;
	}

	info->cable.edev = extcon_get_extcon_dev(AXP288_EXTCON_DEV_NAME);
	if (info->cable.edev == NULL) {
		dev_dbg(&pdev->dev, "%s is not ready, probe deferred\n",
			AXP288_EXTCON_DEV_NAME);
		return -EPROBE_DEFER;
	}

	/* Register for extcon notification */
	INIT_WORK(&info->cable.work, axp288_charger_extcon_evt_worker);
	info->cable.nb.notifier_call = axp288_charger_handle_cable_evt;
	ret = extcon_register_notifier(info->cable.edev, EXTCON_CHG_USB_SDP,
					&info->cable.nb);
	if (ret) {
		dev_err(&info->pdev->dev,
			"failed to register extcon notifier for SDP %d\n", ret);
		return ret;
	}

	ret = extcon_register_notifier(info->cable.edev, EXTCON_CHG_USB_CDP,
					&info->cable.nb);
	if (ret) {
		dev_err(&info->pdev->dev,
			"failed to register extcon notifier for CDP %d\n", ret);
		extcon_unregister_notifier(info->cable.edev,
				EXTCON_CHG_USB_SDP, &info->cable.nb);
		return ret;
	}

	ret = extcon_register_notifier(info->cable.edev, EXTCON_CHG_USB_DCP,
					&info->cable.nb);
	if (ret) {
		dev_err(&info->pdev->dev,
			"failed to register extcon notifier for DCP %d\n", ret);
		extcon_unregister_notifier(info->cable.edev,
				EXTCON_CHG_USB_SDP, &info->cable.nb);
		extcon_unregister_notifier(info->cable.edev,
				EXTCON_CHG_USB_CDP, &info->cable.nb);
		return ret;
	}

	platform_set_drvdata(pdev, info);
	mutex_init(&info->lock);

	/* Register with power supply class */
	charger_cfg.drv_data = info;
	info->psy_usb = power_supply_register(&pdev->dev, &axp288_charger_desc,
						&charger_cfg);
	if (IS_ERR(info->psy_usb)) {
		dev_err(&pdev->dev, "failed to register power supply charger\n");
		ret = PTR_ERR(info->psy_usb);
		goto psy_reg_failed;
	}

	/* Register for OTG notification */
	INIT_WORK(&info->otg.work, axp288_charger_otg_evt_worker);
	info->otg.id_nb.notifier_call = axp288_charger_handle_otg_evt;
	ret = extcon_register_notifier(info->otg.cable, EXTCON_USB_HOST,
				       &info->otg.id_nb);
	if (ret)
		dev_warn(&pdev->dev, "failed to register otg notifier\n");

	if (info->otg.cable)
		info->otg.id_short = extcon_get_cable_state_(
					info->otg.cable, EXTCON_USB_HOST);

	/* Register charger interrupts */
	for (i = 0; i < CHRG_INTR_END; i++) {
		pirq = platform_get_irq(info->pdev, i);
		info->irq[i] = regmap_irq_get_virq(info->regmap_irqc, pirq);
		if (info->irq[i] < 0) {
			dev_warn(&info->pdev->dev,
				"failed to get virtual interrupt=%d\n", pirq);
			ret = info->irq[i];
			goto intr_reg_failed;
		}
		ret = devm_request_threaded_irq(&info->pdev->dev, info->irq[i],
//.........这里部分代码省略.........

static int diagfwd_runtime_resume(struct device *dev)
{
	dev_dbg(dev, "pm_runtime: resuming...\n");
	return 0;
}

static int __init davinci_vc_probe(struct platform_device *pdev)
{
	struct davinci_vc *davinci_vc;
	struct resource *res, *mem;
	struct mfd_cell *cell = NULL;
	int ret;

	davinci_vc = kzalloc(sizeof(struct davinci_vc), GFP_KERNEL);
	if (!davinci_vc) {
		dev_dbg(&pdev->dev,
			    "could not allocate memory for private data\n");
		return -ENOMEM;
	}

	davinci_vc->clk = clk_get(&pdev->dev, NULL);
	if (IS_ERR(davinci_vc->clk)) {
		dev_dbg(&pdev->dev,
			    "could not get the clock for voice codec\n");
		ret = -ENODEV;
		goto fail1;
	}
	clk_enable(davinci_vc->clk);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(&pdev->dev, "no mem resource\n");
		ret = -ENODEV;
		goto fail2;
	}

	davinci_vc->pbase = res->start;
	davinci_vc->base_size = resource_size(res);

	mem = request_mem_region(davinci_vc->pbase, davinci_vc->base_size,
				 pdev->name);
	if (!mem) {
		dev_err(&pdev->dev, "VCIF region already claimed\n");
		ret = -EBUSY;
		goto fail2;
	}

	davinci_vc->base = ioremap(davinci_vc->pbase, davinci_vc->base_size);
	if (!davinci_vc->base) {
		dev_err(&pdev->dev, "can't ioremap mem resource.\n");
		ret = -ENOMEM;
		goto fail3;
	}

	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
	if (!res) {
		dev_err(&pdev->dev, "no DMA resource\n");
		ret = -ENXIO;
		goto fail4;
	}

	davinci_vc->davinci_vcif.dma_tx_channel = res->start;
	davinci_vc->davinci_vcif.dma_tx_addr =
		(dma_addr_t)(io_v2p(davinci_vc->base) + DAVINCI_VC_WFIFO);

	res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
	if (!res) {
		dev_err(&pdev->dev, "no DMA resource\n");
		ret = -ENXIO;
		goto fail4;
	}

	davinci_vc->davinci_vcif.dma_rx_channel = res->start;
	davinci_vc->davinci_vcif.dma_rx_addr =
		(dma_addr_t)(io_v2p(davinci_vc->base) + DAVINCI_VC_RFIFO);

	davinci_vc->dev = &pdev->dev;
	davinci_vc->pdev = pdev;

	/* Voice codec interface client */
	cell = &davinci_vc->cells[DAVINCI_VC_VCIF_CELL];
	cell->name = "davinci-vcif";
	cell->mfd_data = davinci_vc;

	/* Voice codec CQ93VC client */
	cell = &davinci_vc->cells[DAVINCI_VC_CQ93VC_CELL];
	cell->name = "cq93vc-codec";
	cell->mfd_data = davinci_vc;

	ret = mfd_add_devices(&pdev->dev, pdev->id, davinci_vc->cells,
			      DAVINCI_VC_CELLS, NULL, 0);
	if (ret != 0) {
		dev_err(&pdev->dev, "fail to register client devices\n");
		goto fail4;
	}

	return 0;

fail4:
	iounmap(davinci_vc->base);
fail3:
	release_mem_region(davinci_vc->pbase, davinci_vc->base_size);
fail2:
	clk_disable(davinci_vc->clk);
	clk_put(davinci_vc->clk);
	davinci_vc->clk = NULL;
//.........这里部分代码省略.........

static int diagfwd_runtime_suspend(struct device *dev)
{
	dev_dbg(dev, "pm_runtime: suspending...\n");
	return 0;
}

/**
 * mei_reset - resets host and fw.
 *
 * @dev: the device structure
 *
 * Return: 0 on success or < 0 if the reset hasn't succeeded
 */
int mei_reset(struct mei_device *dev)
{
	enum mei_dev_state state = dev->dev_state;
	bool interrupts_enabled;
	int ret;

	if (state != MEI_DEV_INITIALIZING &&
	    state != MEI_DEV_DISABLED &&
	    state != MEI_DEV_POWER_DOWN &&
	    state != MEI_DEV_POWER_UP) {
		char fw_sts_str[MEI_FW_STATUS_STR_SZ];

		mei_fw_status_str(dev, fw_sts_str, MEI_FW_STATUS_STR_SZ);
		dev_warn(dev->dev, "unexpected reset: dev_state = %s fw status = %s\n",
			 mei_dev_state_str(state), fw_sts_str);
	}

	mei_clear_interrupts(dev);

	/* we're already in reset, cancel the init timer
	 * if the reset was called due the hbm protocol error
	 * we need to call it before hw start
	 * so the hbm watchdog won't kick in
	 */
	mei_hbm_idle(dev);

	/* enter reset flow */
	interrupts_enabled = state != MEI_DEV_POWER_DOWN;
	dev->dev_state = MEI_DEV_RESETTING;

	dev->reset_count++;
	if (dev->reset_count > MEI_MAX_CONSEC_RESET) {
		dev_err(dev->dev, "reset: reached maximal consecutive resets: disabling the device\n");
		dev->dev_state = MEI_DEV_DISABLED;
		return -ENODEV;
	}

	ret = mei_hw_reset(dev, interrupts_enabled);
	/* fall through and remove the sw state even if hw reset has failed */

	/* no need to clean up software state in case of power up */
	if (state != MEI_DEV_INITIALIZING && state != MEI_DEV_POWER_UP)
		mei_cl_all_disconnect(dev);

	mei_hbm_reset(dev);

	memset(dev->rd_msg_hdr, 0, sizeof(dev->rd_msg_hdr));

	if (ret) {
		dev_err(dev->dev, "hw_reset failed ret = %d\n", ret);
		return ret;
	}

	if (state == MEI_DEV_POWER_DOWN) {
		dev_dbg(dev->dev, "powering down: end of reset\n");
		dev->dev_state = MEI_DEV_DISABLED;
		return 0;
	}

	ret = mei_hw_start(dev);
	if (ret) {
		dev_err(dev->dev, "hw_start failed ret = %d\n", ret);
		return ret;
	}

	dev_dbg(dev->dev, "link is established start sending messages.\n");

	dev->dev_state = MEI_DEV_INIT_CLIENTS;
	ret = mei_hbm_start_req(dev);
	if (ret) {
		dev_err(dev->dev, "hbm_start failed ret = %d\n", ret);
		dev->dev_state = MEI_DEV_RESETTING;
		return ret;
	}

	return 0;
}

static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev)
{
	int result;
	struct usb_hcd *hcd;
	unsigned int virq;
	static u64 dummy_mask = DMA_BIT_MASK(32);

	if (usb_disabled()) {
		result = -ENODEV;
		goto fail_start;
	}

	result = ps3_open_hv_device(dev);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
			__func__, __LINE__);
		goto fail_open;
	}

	result = ps3_dma_region_create(dev->d_region);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
			"(%d)\n", __func__, __LINE__, result);
		BUG_ON("check region type");
		goto fail_dma_region;
	}

	result = ps3_mmio_region_create(dev->m_region);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
			__func__, __LINE__);
		result = -EPERM;
		goto fail_mmio_region;
	}

	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
		__LINE__, dev->m_region->lpar_addr);

	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
			__func__, __LINE__, virq);
		result = -EPERM;
		goto fail_irq;
	}

	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */

	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));

	if (!hcd) {
		dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
			__LINE__);
		result = -ENOMEM;
		goto fail_create_hcd;
	}

	hcd->rsrc_start = dev->m_region->lpar_addr;
	hcd->rsrc_len = dev->m_region->len;

	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
		dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
			__func__, __LINE__);

	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);

	if (!hcd->regs) {
		dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
			__LINE__);
		result = -EPERM;
		goto fail_ioremap;
	}

	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
		(unsigned long)hcd->rsrc_start);
	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len   %lxh\n", __func__, __LINE__,
		(unsigned long)hcd->rsrc_len);
	dev_dbg(&dev->core, "%s:%d: hcd->regs       %lxh\n", __func__, __LINE__,
		(unsigned long)hcd->regs);
	dev_dbg(&dev->core, "%s:%d: virq            %lu\n", __func__, __LINE__,
		(unsigned long)virq);

	ps3_system_bus_set_drvdata(dev, hcd);

	result = usb_add_hcd(hcd, virq, 0);

	if (result) {
		dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
			__func__, __LINE__, result);
		goto fail_add_hcd;
	}

	return result;

fail_add_hcd:
	iounmap(hcd->regs);
//.........这里部分代码省略.........

/* always call with the tx_lock held */
static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd)
{
    struct request *req = blk_mq_rq_from_pdu(cmd);
    int result, flags;
    struct nbd_request request;
    unsigned long size = blk_rq_bytes(req);
    u32 type;

    if (req->cmd_type == REQ_TYPE_DRV_PRIV)
        type = NBD_CMD_DISC;
    else if (req_op(req) == REQ_OP_DISCARD)
        type = NBD_CMD_TRIM;
    else if (req_op(req) == REQ_OP_FLUSH)
        type = NBD_CMD_FLUSH;
    else if (rq_data_dir(req) == WRITE)
        type = NBD_CMD_WRITE;
    else
        type = NBD_CMD_READ;

    memset(&request, 0, sizeof(request));
    request.magic = htonl(NBD_REQUEST_MAGIC);
    request.type = htonl(type);
    if (type != NBD_CMD_FLUSH && type != NBD_CMD_DISC) {
        request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9);
        request.len = htonl(size);
    }
    memcpy(request.handle, &req->tag, sizeof(req->tag));

    dev_dbg(nbd_to_dev(nbd), "request %p: sending control (%[email protected]%llu,%uB)\n",
            cmd, nbdcmd_to_ascii(type),
            (unsigned long long)blk_rq_pos(req) << 9, blk_rq_bytes(req));
    result = sock_xmit(nbd, 1, &request, sizeof(request),
                       (type == NBD_CMD_WRITE) ? MSG_MORE : 0);
    if (result <= 0) {
        dev_err(disk_to_dev(nbd->disk),
                "Send control failed (result %d)\n", result);
        return -EIO;
    }

    if (type == NBD_CMD_WRITE) {
        struct req_iterator iter;
        struct bio_vec bvec;
        /*
         * we are really probing at internals to determine
         * whether to set MSG_MORE or not...
         */
        rq_for_each_segment(bvec, req, iter) {
            flags = 0;
            if (!rq_iter_last(bvec, iter))
                flags = MSG_MORE;
            dev_dbg(nbd_to_dev(nbd), "request %p: sending %d bytes data\n",
                    cmd, bvec.bv_len);
            result = sock_send_bvec(nbd, &bvec, flags);
            if (result <= 0) {
                dev_err(disk_to_dev(nbd->disk),
                        "Send data failed (result %d)\n",
                        result);
                return -EIO;
            }
        }
    }

static void sharpsl_battery_thread(struct work_struct *private_)
{
	int voltage, percent, apm_status, i = 0;

	if (!sharpsl_pm.machinfo)
		return;

	sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE);

	/* Corgi cannot confirm when battery fully charged so periodically kick! */
	if (!sharpsl_pm.machinfo->batfull_irq && (sharpsl_pm.charge_mode == CHRG_ON)
			&& time_after(jiffies, sharpsl_pm.charge_start_time +  SHARPSL_CHARGE_ON_TIME_INTERVAL))
		schedule_delayed_work(&toggle_charger, 0);

	while(1) {
		voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT);

		if (voltage > 0) break;
		if (i++ > 5) {
			voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage;
			dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n");
			break;
		}
	}

	voltage = sharpsl_average_value(voltage);
	apm_status = get_apm_status(voltage);
	percent = get_percentage(voltage);

	/* At low battery voltages, the voltage has a tendency to start
           creeping back up so we try to avoid this here */
	if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) || (apm_status == APM_BATTERY_STATUS_HIGH) ||  percent <= sharpsl_pm.battstat.mainbat_percent) {
		sharpsl_pm.battstat.mainbat_voltage = voltage;
		sharpsl_pm.battstat.mainbat_status = apm_status;
		sharpsl_pm.battstat.mainbat_percent = percent;
	}

	dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %ld\n", voltage,
			sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies);

#ifdef CONFIG_BACKLIGHT_CORGI
	/* If battery is low. limit backlight intensity to save power. */
	if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE)
			&& ((sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_LOW) ||
			(sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL))) {
		if (!(sharpsl_pm.flags & SHARPSL_BL_LIMIT)) {
			sharpsl_pm.machinfo->backlight_limit(1);
			sharpsl_pm.flags |= SHARPSL_BL_LIMIT;
		}
	} else if (sharpsl_pm.flags & SHARPSL_BL_LIMIT) {
		sharpsl_pm.machinfo->backlight_limit(0);
		sharpsl_pm.flags &= ~SHARPSL_BL_LIMIT;
	}
#endif

	/* Suspend if critical battery level */
	if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE)
			&& (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL)
			&& !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) {
		sharpsl_pm.flags |= SHARPSL_APM_QUEUED;
		dev_err(sharpsl_pm.dev, "Fatal Off\n");
		apm_queue_event(APM_CRITICAL_SUSPEND);
	}

	schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME);
}

static int arizona_runtime_resume(struct device *dev)
{
	struct arizona *arizona = dev_get_drvdata(dev);
	int ret;

	dev_dbg(arizona->dev, "Leaving AoD mode\n");

	ret = regulator_enable(arizona->dcvdd);
	if (ret != 0) {
		dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
		return ret;
	}

	regcache_cache_only(arizona->regmap, false);

	switch (arizona->type) {
	case WM5102:
		if (arizona->external_dcvdd) {
			ret = regmap_update_bits(arizona->regmap,
						 ARIZONA_ISOLATION_CONTROL,
						 ARIZONA_ISOLATE_DCVDD1, 0);
			if (ret != 0) {
				dev_err(arizona->dev,
					"Failed to connect DCVDD: %d\n", ret);
				goto err;
			}
		}

		ret = wm5102_patch(arizona);
		if (ret != 0) {
			dev_err(arizona->dev, "Failed to apply patch: %d\n",
				ret);
			goto err;
		}

		ret = arizona_apply_hardware_patch(arizona);
		if (ret != 0) {
			dev_err(arizona->dev,
				"Failed to apply hardware patch: %d\n",
				ret);
			goto err;
		}
		break;
	default:
		ret = arizona_wait_for_boot(arizona);
		if (ret != 0) {
			goto err;
		}

		if (arizona->external_dcvdd) {
			ret = regmap_update_bits(arizona->regmap,
						 ARIZONA_ISOLATION_CONTROL,
						 ARIZONA_ISOLATE_DCVDD1, 0);
			if (ret != 0) {
				dev_err(arizona->dev,
					"Failed to connect DCVDD: %d\n", ret);
				goto err;
			}
		}
		break;
	}

	switch (arizona->type) {
	case WM5102:
		ret = wm5102_patch(arizona);
		if (ret != 0) {
			dev_err(arizona->dev, "Failed to apply patch: %d\n",
				ret);
			goto err;
		}
	default:
		break;
	}

	ret = regcache_sync(arizona->regmap);
	if (ret != 0) {
		dev_err(arizona->dev, "Failed to restore register cache\n");
		goto err;
	}

	return 0;

err:
	regcache_cache_only(arizona->regmap, true);
	regulator_disable(arizona->dcvdd);
	return ret;
}

/*
 * Charging Control while suspended
 * Return 1 - go straight to sleep
 * Return 0 - sleep or wakeup depending on other factors
 */
static int sharpsl_off_charge_battery(void)
{
	int time;

	dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode);

	if (sharpsl_pm.charge_mode == CHRG_OFF) {
		dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n");

		/* AC Check */
		if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0))
			return sharpsl_off_charge_error();

		/* Start Charging */
		sharpsl_pm_led(SHARPSL_LED_ON);
		sharpsl_pm.machinfo->charge(0);
		mdelay(SHARPSL_CHARGE_WAIT_TIME);
		sharpsl_pm.machinfo->charge(1);

		sharpsl_pm.charge_mode = CHRG_ON;
		sharpsl_pm.full_count = 0;

		return 1;
	} else if (sharpsl_pm.charge_mode != CHRG_ON) {
		return 1;
	}

	if (sharpsl_pm.full_count == 0) {
		int time;

		dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n");

		if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0))
			return sharpsl_off_charge_error();

		sharpsl_pm.machinfo->charge(0);
		mdelay(SHARPSL_CHARGE_WAIT_TIME);
		sharpsl_pm.machinfo->charge(1);
		sharpsl_pm.charge_mode = CHRG_ON;

		mdelay(SHARPSL_CHARGE_CO_CHECK_TIME);

		time = RCNR;
		while(1) {
			/* Check if any wakeup event had occurred */
			if (sharpsl_pm.machinfo->charger_wakeup() != 0)
				return 0;
			/* Check for timeout */
			if ((RCNR - time) > SHARPSL_WAIT_CO_TIME)
				return 1;
			if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) {
				dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occurred. Retrying to check\n");
	   			sharpsl_pm.full_count++;
				sharpsl_pm.machinfo->charge(0);
				mdelay(SHARPSL_CHARGE_WAIT_TIME);
				sharpsl_pm.machinfo->charge(1);
				return 1;
			}
		}
	}

	dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n");

	mdelay(SHARPSL_CHARGE_CO_CHECK_TIME);

	time = RCNR;
	while(1) {
		/* Check if any wakeup event had occurred */
		if (sharpsl_pm.machinfo->charger_wakeup() != 0)
			return 0;
		/* Check for timeout */
		if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) {
			if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) {
				dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n");
				sharpsl_pm.full_count = 0;
			}
			sharpsl_pm.full_count++;
			return 1;
		}
		if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) {
			dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n");
			sharpsl_pm_led(SHARPSL_LED_OFF);
			sharpsl_pm.machinfo->charge(0);
			sharpsl_pm.charge_mode = CHRG_DONE;
			return 1;
		}
	}
}