[v9,28/32] i2c: tegra: Clean up variable names

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 823d5baadd68..1a1388339660 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -247,15 +247,15 @@  struct tegra_i2c_hw_feature {
  * @msg_buf_remaining: size of unsent data in the message buffer
  * @msg_read: identifies read transfers
  * @bus_clk_rate: current I2C bus clock rate
- * @is_multimaster_mode: track if I2C controller is in multi-master mode
+ * @multimaster_mode: indicates that I2C controller is in multi-master mode
  * @tx_dma_chan: DMA transmit channel
  * @rx_dma_chan: DMA receive channel
  * @dma_phys: handle to DMA resources
  * @dma_buf: pointer to allocated DMA buffer
  * @dma_buf_size: DMA buffer size
- * @is_curr_dma_xfer: indicates active DMA transfer
+ * @dma_mode: indicates active DMA transfer
  * @dma_complete: DMA completion notifier
- * @is_curr_atomic_xfer: indicates active atomic transfer
+ * @atomic_mode: indicates active atomic transfer
  */
 struct tegra_i2c_dev {
 	struct device *dev;
@@ -287,9 +287,9 @@  struct tegra_i2c_dev {
 	dma_addr_t dma_phys;
 	void *dma_buf;
 
-	bool is_multimaster_mode;
-	bool is_curr_atomic_xfer;
-	bool is_curr_dma_xfer;
+	bool multimaster_mode;
+	bool atomic_mode;
+	bool dma_mode;
 	bool msg_read;
 	bool is_dvc;
 	bool is_vi;
@@ -526,7 +526,7 @@  static int tegra_i2c_poll_register(struct tegra_i2c_dev *i2c_dev,
 	void __iomem *addr = i2c_dev->base + tegra_i2c_reg_addr(i2c_dev, reg);
 	u32 val;
 
-	if (!i2c_dev->is_curr_atomic_xfer)
+	if (!i2c_dev->atomic_mode)
 		return readl_relaxed_poll_timeout(addr, val, !(val & mask),
 						  delay_us, timeout_us);
 
@@ -674,7 +674,7 @@  static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
 	if (err)
 		return err;
 
-	if (i2c_dev->is_multimaster_mode && i2c_dev->hw->has_slcg_override_reg)
+	if (i2c_dev->multimaster_mode && i2c_dev->hw->has_slcg_override_reg)
 		i2c_writel(i2c_dev, I2C_MST_CORE_CLKEN_OVR, I2C_CLKEN_OVERRIDE);
 
 	err = tegra_i2c_wait_for_config_load(i2c_dev);
@@ -860,7 +860,7 @@  static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
 	if (i2c_dev->hw->supports_bus_clear && (status & I2C_INT_BUS_CLR_DONE))
 		goto err;
 
-	if (!i2c_dev->is_curr_dma_xfer) {
+	if (!i2c_dev->dma_mode) {
 		if (i2c_dev->msg_read && (status & I2C_INT_RX_FIFO_DATA_REQ)) {
 			if (tegra_i2c_empty_rx_fifo(i2c_dev)) {
 				/*
@@ -894,7 +894,7 @@  static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
 	 * so forcing msg_buf_remaining to 0 in DMA mode.
 	 */
 	if (status & I2C_INT_PACKET_XFER_COMPLETE) {
-		if (i2c_dev->is_curr_dma_xfer)
+		if (i2c_dev->dma_mode)
 			i2c_dev->msg_buf_remaining = 0;
 		/*
 		 * Underflow error condition: XFER_COMPLETE before message
@@ -918,7 +918,7 @@  static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
 	if (i2c_dev->is_dvc)
 		dvc_writel(i2c_dev, DVC_STATUS_I2C_DONE_INTR, DVC_STATUS);
 
-	if (i2c_dev->is_curr_dma_xfer) {
+	if (i2c_dev->dma_mode) {
 		if (i2c_dev->msg_read)
 			dmaengine_terminate_async(i2c_dev->rx_dma_chan);
 		else
@@ -938,14 +938,14 @@  static void tegra_i2c_config_fifo_trig(struct tegra_i2c_dev *i2c_dev,
 	struct dma_slave_config slv_config = {0};
 	u32 val, reg, dma_burst, reg_offset;
 	struct dma_chan *chan;
-	int ret;
+	int err;
 
 	if (i2c_dev->hw->has_mst_fifo)
 		reg = I2C_MST_FIFO_CONTROL;
 	else
 		reg = I2C_FIFO_CONTROL;
 
-	if (i2c_dev->is_curr_dma_xfer) {
+	if (i2c_dev->dma_mode) {
 		if (len & 0xF)
 			dma_burst = 1;
 		else if (len & 0x10)
@@ -978,13 +978,13 @@  static void tegra_i2c_config_fifo_trig(struct tegra_i2c_dev *i2c_dev,
 		}
 
 		slv_config.device_fc = true;
-		ret = dmaengine_slave_config(chan, &slv_config);
-		if (ret) {
+		err = dmaengine_slave_config(chan, &slv_config);
+		if (err) {
 			dev_err(i2c_dev->dev, "DMA slave config failed: %d\n",
-				ret);
+				err);
 			dev_err(i2c_dev->dev, "falling back to PIO\n");
 			tegra_i2c_release_dma(i2c_dev);
-			i2c_dev->is_curr_dma_xfer = false;
+			i2c_dev->dma_mode = false;
 		} else {
 			goto out;
 		}
@@ -1032,7 +1032,7 @@  static unsigned long tegra_i2c_wait_completion(struct tegra_i2c_dev *i2c_dev,
 {
 	unsigned long ret;
 
-	if (i2c_dev->is_curr_atomic_xfer) {
+	if (i2c_dev->atomic_mode) {
 		ret = tegra_i2c_poll_completion(i2c_dev, complete, timeout_ms);
 	} else {
 		enable_irq(i2c_dev->irq);
@@ -1060,20 +1060,20 @@  static unsigned long tegra_i2c_wait_completion(struct tegra_i2c_dev *i2c_dev,
 static int tegra_i2c_issue_bus_clear(struct i2c_adapter *adap)
 {
 	struct tegra_i2c_dev *i2c_dev = i2c_get_adapdata(adap);
-	u32 reg, time_left;
+	u32 val, time_left;
 	int err;
 
 	reinit_completion(&i2c_dev->msg_complete);
-	reg = FIELD_PREP(I2C_BC_SCLK_THRESHOLD, 9) | I2C_BC_STOP_COND |
+	val = FIELD_PREP(I2C_BC_SCLK_THRESHOLD, 9) | I2C_BC_STOP_COND |
 	      I2C_BC_TERMINATE;
-	i2c_writel(i2c_dev, reg, I2C_BUS_CLEAR_CNFG);
+	i2c_writel(i2c_dev, val, I2C_BUS_CLEAR_CNFG);
 
 	err = tegra_i2c_wait_for_config_load(i2c_dev);
 	if (err)
 		return err;
 
-	reg |= I2C_BC_ENABLE;
-	i2c_writel(i2c_dev, reg, I2C_BUS_CLEAR_CNFG);
+	val |= I2C_BC_ENABLE;
+	i2c_writel(i2c_dev, val, I2C_BUS_CLEAR_CNFG);
 	tegra_i2c_unmask_irq(i2c_dev, I2C_INT_BUS_CLR_DONE);
 
 	time_left = tegra_i2c_wait_completion(i2c_dev, &i2c_dev->msg_complete, 50);
@@ -1084,8 +1084,8 @@  static int tegra_i2c_issue_bus_clear(struct i2c_adapter *adap)
 		return -ETIMEDOUT;
 	}
 
-	reg = i2c_readl(i2c_dev, I2C_BUS_CLEAR_STATUS);
-	if (!(reg & I2C_BC_STATUS)) {
+	val = i2c_readl(i2c_dev, I2C_BUS_CLEAR_STATUS);
+	if (!(val & I2C_BC_STATUS)) {
 		dev_err(i2c_dev->dev,
 			"un-recovered arbitration lost\n");
 		return -EIO;
@@ -1107,14 +1107,14 @@  static void tegra_i2c_push_packet_header(struct tegra_i2c_dev *i2c_dev,
 			FIELD_PREP(PACKET_HEADER0_CONT_ID, i2c_dev->cont_id) |
 			FIELD_PREP(PACKET_HEADER0_PACKET_ID, 1);
 
-	if (i2c_dev->is_curr_dma_xfer && !i2c_dev->msg_read)
+	if (i2c_dev->dma_mode && !i2c_dev->msg_read)
 		*dma_buf++ = packet_header;
 	else
 		i2c_writel(i2c_dev, packet_header, I2C_TX_FIFO);
 
 	packet_header = msg->len - 1;
 
-	if (i2c_dev->is_curr_dma_xfer && !i2c_dev->msg_read)
+	if (i2c_dev->dma_mode && !i2c_dev->msg_read)
 		*dma_buf++ = packet_header;
 	else
 		i2c_writel(i2c_dev, packet_header, I2C_TX_FIFO);
@@ -1139,7 +1139,7 @@  static void tegra_i2c_push_packet_header(struct tegra_i2c_dev *i2c_dev,
 	if (msg->flags & I2C_M_RD)
 		packet_header |= I2C_HEADER_READ;
 
-	if (i2c_dev->is_curr_dma_xfer && !i2c_dev->msg_read)
+	if (i2c_dev->dma_mode && !i2c_dev->msg_read)
 		*dma_buf++ = packet_header;
 	else
 		i2c_writel(i2c_dev, packet_header, I2C_TX_FIFO);
@@ -1155,7 +1155,7 @@  static int tegra_i2c_error_recover(struct tegra_i2c_dev *i2c_dev,
 
 	/* start recovery upon arbitration loss in single master mode */
 	if (i2c_dev->msg_err == I2C_ERR_ARBITRATION_LOST) {
-		if (!i2c_dev->is_multimaster_mode)
+		if (!i2c_dev->multimaster_mode)
 			return i2c_recover_bus(&i2c_dev->adapter);
 
 		return -EAGAIN;
@@ -1196,9 +1196,9 @@  static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 		xfer_size = msg->len + I2C_PACKET_HEADER_SIZE;
 
 	xfer_size = ALIGN(xfer_size, BYTES_PER_FIFO_WORD);
-	i2c_dev->is_curr_dma_xfer = (xfer_size > I2C_PIO_MODE_PREFERRED_LEN) &&
-				    i2c_dev->dma_buf &&
-				    !i2c_dev->is_curr_atomic_xfer;
+	i2c_dev->dma_mode = (xfer_size > I2C_PIO_MODE_PREFERRED_LEN) &&
+			    i2c_dev->dma_buf && !i2c_dev->atomic_mode;
+
 	tegra_i2c_config_fifo_trig(i2c_dev, xfer_size);
 
 	/*
@@ -1210,7 +1210,7 @@  static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 
 	int_mask = I2C_INT_NO_ACK | I2C_INT_ARBITRATION_LOST;
 	tegra_i2c_unmask_irq(i2c_dev, int_mask);
-	if (i2c_dev->is_curr_dma_xfer) {
+	if (i2c_dev->dma_mode) {
 		if (i2c_dev->msg_read) {
 			dma_sync_single_for_device(i2c_dev->dev,
 						   i2c_dev->dma_phys,
@@ -1235,7 +1235,7 @@  static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 	tegra_i2c_push_packet_header(i2c_dev, msg, end_state);
 
 	if (!i2c_dev->msg_read) {
-		if (i2c_dev->is_curr_dma_xfer) {
+		if (i2c_dev->dma_mode) {
 			memcpy(i2c_dev->dma_buf + I2C_PACKET_HEADER_SIZE,
 			       msg->buf, msg->len);
 			dma_sync_single_for_device(i2c_dev->dev,
@@ -1256,7 +1256,7 @@  static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 
 	if (i2c_dev->hw->has_per_pkt_xfer_complete_irq)
 		int_mask |= I2C_INT_PACKET_XFER_COMPLETE;
-	if (!i2c_dev->is_curr_dma_xfer) {
+	if (!i2c_dev->dma_mode) {
 		if (msg->flags & I2C_M_RD)
 			int_mask |= I2C_INT_RX_FIFO_DATA_REQ;
 		else if (i2c_dev->msg_buf_remaining)
@@ -1267,7 +1267,7 @@  static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 	dev_dbg(i2c_dev->dev, "unmasked irq: %02x\n",
 		i2c_readl(i2c_dev, I2C_INT_MASK));
 
-	if (i2c_dev->is_curr_dma_xfer) {
+	if (i2c_dev->dma_mode) {
 		time_left = tegra_i2c_wait_completion(i2c_dev,
 						      &i2c_dev->dma_complete,
 						      xfer_time);
@@ -1316,7 +1316,7 @@  static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 		time_left, completion_done(&i2c_dev->msg_complete),
 		i2c_dev->msg_err);
 
-	i2c_dev->is_curr_dma_xfer = false;
+	i2c_dev->dma_mode = false;
 
 	err = tegra_i2c_error_recover(i2c_dev, msg);
 	if (err)
@@ -1363,9 +1363,9 @@  static int tegra_i2c_xfer_atomic(struct i2c_adapter *adap,
 	struct tegra_i2c_dev *i2c_dev = i2c_get_adapdata(adap);
 	int ret;
 
-	i2c_dev->is_curr_atomic_xfer = true;
+	i2c_dev->atomic_mode = true;
 	ret = tegra_i2c_xfer(adap, msgs, num);
-	i2c_dev->is_curr_atomic_xfer = false;
+	i2c_dev->atomic_mode = false;
 
 	return ret;
 }
@@ -1590,15 +1590,15 @@  static void tegra_i2c_parse_dt(struct tegra_i2c_dev *i2c_dev)
 {
 	struct device_node *np = i2c_dev->dev->of_node;
 	bool multi_mode;
-	int ret;
+	int err;
 
-	ret = of_property_read_u32(np, "clock-frequency",
+	err = of_property_read_u32(np, "clock-frequency",
 				   &i2c_dev->bus_clk_rate);
-	if (ret)
+	if (err)
 		i2c_dev->bus_clk_rate = I2C_MAX_STANDARD_MODE_FREQ; /* default clock rate */
 
 	multi_mode = of_property_read_bool(np, "multi-master");
-	i2c_dev->is_multimaster_mode = multi_mode;
+	i2c_dev->multimaster_mode = multi_mode;
 
 	if (of_device_is_compatible(np, "nvidia,tegra20-i2c-dvc"))
 		i2c_dev->is_dvc = true;
@@ -1630,7 +1630,7 @@  static int tegra_i2c_init_clocks(struct tegra_i2c_dev *i2c_dev)
 
 	i2c_dev->div_clk = i2c_dev->clocks[0].clk;
 
-	if (!i2c_dev->is_multimaster_mode)
+	if (!i2c_dev->multimaster_mode)
 		return 0;
 
 	err = clk_enable(i2c_dev->div_clk);
@@ -1649,7 +1649,7 @@  static int tegra_i2c_init_clocks(struct tegra_i2c_dev *i2c_dev)
 
 static void tegra_i2c_release_clocks(struct tegra_i2c_dev *i2c_dev)
 {
-	if (i2c_dev->is_multimaster_mode)
+	if (i2c_dev->multimaster_mode)
 		clk_disable(i2c_dev->div_clk);
 
 	clk_bulk_unprepare(i2c_dev->nclocks, i2c_dev->clocks);
@@ -1674,7 +1674,7 @@  static int tegra_i2c_probe(struct platform_device *pdev)
 {
 	struct tegra_i2c_dev *i2c_dev;
 	struct resource *res;
-	int ret;
+	int err;
 
 	i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL);
 	if (!i2c_dev)
@@ -1695,36 +1695,36 @@  static int tegra_i2c_probe(struct platform_device *pdev)
 
 	i2c_dev->base_phys = res->start;
 
-	ret = platform_get_irq(pdev, 0);
-	if (ret < 0)
-		return ret;
+	err = platform_get_irq(pdev, 0);
+	if (err < 0)
+		return err;
 
-	i2c_dev->irq = ret;
+	i2c_dev->irq = err;
 
 	/* interrupt will be enabled during of transfer time */
 	irq_set_status_flags(i2c_dev->irq, IRQ_NOAUTOEN);
 
-	ret = devm_request_irq(&pdev->dev, i2c_dev->irq, tegra_i2c_isr,
-			       IRQF_NO_SUSPEND, dev_name(&pdev->dev),
+	err = devm_request_irq(i2c_dev->dev, i2c_dev->irq, tegra_i2c_isr,
+			       IRQF_NO_SUSPEND, dev_name(i2c_dev->dev),
 			       i2c_dev);
-	if (ret)
-		return ret;
+	if (err)
+		return err;
 
-	i2c_dev->rst = devm_reset_control_get_exclusive(&pdev->dev, "i2c");
+	i2c_dev->rst = devm_reset_control_get_exclusive(i2c_dev->dev, "i2c");
 	if (IS_ERR(i2c_dev->rst)) {
-		dev_err_probe(&pdev->dev, PTR_ERR(i2c_dev->rst),
+		dev_err_probe(i2c_dev->dev, PTR_ERR(i2c_dev->rst),
 			      "failed to get reset control\n");
 		return PTR_ERR(i2c_dev->rst);
 	}
 
 	tegra_i2c_parse_dt(i2c_dev);
 
-	ret = tegra_i2c_init_clocks(i2c_dev);
-	if (ret)
-		return ret;
+	err = tegra_i2c_init_clocks(i2c_dev);
+	if (err)
+		return err;
 
-	ret = tegra_i2c_init_dma(i2c_dev);
-	if (ret)
+	err = tegra_i2c_init_dma(i2c_dev);
+	if (err)
 		goto release_clocks;
 
 	/*
@@ -1735,16 +1735,16 @@  static int tegra_i2c_probe(struct platform_device *pdev)
 	 * not be used for atomic transfers.
 	 */
 	if (!i2c_dev->is_vi)
-		pm_runtime_irq_safe(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
+		pm_runtime_irq_safe(i2c_dev->dev);
+	pm_runtime_enable(i2c_dev->dev);
 
-	ret = tegra_i2c_init_hardware(i2c_dev);
-	if (ret)
+	err = tegra_i2c_init_hardware(i2c_dev);
+	if (err)
 		goto release_rpm;
 
 	i2c_set_adapdata(&i2c_dev->adapter, i2c_dev);
-	i2c_dev->adapter.dev.of_node = pdev->dev.of_node;
-	i2c_dev->adapter.dev.parent = &pdev->dev;
+	i2c_dev->adapter.dev.of_node = i2c_dev->dev->of_node;
+	i2c_dev->adapter.dev.parent = i2c_dev->dev;
 	i2c_dev->adapter.retries = 1;
 	i2c_dev->adapter.timeout = 6 * HZ;
 	i2c_dev->adapter.quirks = i2c_dev->hw->quirks;
@@ -1756,23 +1756,23 @@  static int tegra_i2c_probe(struct platform_device *pdev)
 	if (i2c_dev->hw->supports_bus_clear)
 		i2c_dev->adapter.bus_recovery_info = &tegra_i2c_recovery_info;
 
-	strlcpy(i2c_dev->adapter.name, dev_name(&pdev->dev),
+	strlcpy(i2c_dev->adapter.name, dev_name(i2c_dev->dev),
 		sizeof(i2c_dev->adapter.name));
 
-	ret = i2c_add_numbered_adapter(&i2c_dev->adapter);
-	if (ret)
+	err = i2c_add_numbered_adapter(&i2c_dev->adapter);
+	if (err)
 		goto release_rpm;
 
 	return 0;
 
 release_rpm:
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_disable(i2c_dev->dev);
 
 	tegra_i2c_release_dma(i2c_dev);
 release_clocks:
 	tegra_i2c_release_clocks(i2c_dev);
 
-	return ret;
+	return err;
 }
 
 static int tegra_i2c_remove(struct platform_device *pdev)
@@ -1781,7 +1781,7 @@  static int tegra_i2c_remove(struct platform_device *pdev)
 
 	i2c_del_adapter(&i2c_dev->adapter);
 
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_disable(i2c_dev->dev);
 
 	tegra_i2c_release_dma(i2c_dev);
 	tegra_i2c_release_clocks(i2c_dev);
@@ -1791,15 +1791,15 @@  static int tegra_i2c_remove(struct platform_device *pdev)
 static int __maybe_unused tegra_i2c_runtime_resume(struct device *dev)
 {
 	struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev);
-	int ret;
+	int err;
 
-	ret = pinctrl_pm_select_default_state(i2c_dev->dev);
-	if (ret)
-		return ret;
+	err = pinctrl_pm_select_default_state(dev);
+	if (err)
+		return err;
 
-	ret = clk_bulk_enable(i2c_dev->nclocks, i2c_dev->clocks);
-	if (ret)
-		return ret;
+	err = clk_bulk_enable(i2c_dev->nclocks, i2c_dev->clocks);
+	if (err)
+		return err;
 
 	/*
 	 * VI I2C device is attached to VE power domain which goes through
@@ -1808,8 +1808,8 @@  static int __maybe_unused tegra_i2c_runtime_resume(struct device *dev)
 	 * domain ON.
 	 */
 	if (i2c_dev->is_vi) {
-		ret = tegra_i2c_init(i2c_dev);
-		if (ret)
+		err = tegra_i2c_init(i2c_dev);
+		if (err)
 			goto disable_clocks;
 	}
 
@@ -1818,7 +1818,7 @@  static int __maybe_unused tegra_i2c_runtime_resume(struct device *dev)
 disable_clocks:
 	clk_bulk_disable(i2c_dev->nclocks, i2c_dev->clocks);
 
-	return ret;
+	return err;
 }
 
 static int __maybe_unused tegra_i2c_runtime_suspend(struct device *dev)
@@ -1827,20 +1827,23 @@  static int __maybe_unused tegra_i2c_runtime_suspend(struct device *dev)
 
 	clk_bulk_disable(i2c_dev->nclocks, i2c_dev->clocks);
 
-	return pinctrl_pm_select_idle_state(i2c_dev->dev);
+	return pinctrl_pm_select_idle_state(dev);
 }
 
 static int __maybe_unused tegra_i2c_suspend(struct device *dev)
 {
 	struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev);
-	int err = 0;
+	int err;
 
 	i2c_mark_adapter_suspended(&i2c_dev->adapter);
 
-	if (!pm_runtime_status_suspended(dev))
+	if (!pm_runtime_status_suspended(dev)) {
 		err = tegra_i2c_runtime_suspend(dev);
+		if (err)
+			return err;
+	}
 
-	return err;
+	return 0;
 }
 
 static int __maybe_unused tegra_i2c_resume(struct device *dev)