1 files changed, 45 insertions, 51 deletions

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 41b6341be7b5..823d5baadd68 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -259,42 +259,49 @@ struct tegra_i2c_hw_feature {
  */
 struct tegra_i2c_dev {
 	struct device *dev;
-	const struct tegra_i2c_hw_feature *hw;
 	struct i2c_adapter adapter;
-	struct clk *div_clk;
-	struct clk_bulk_data clocks[2];
-	unsigned int nclocks;
+
+	const struct tegra_i2c_hw_feature *hw;
 	struct reset_control *rst;
-	void __iomem *base;
-	phys_addr_t base_phys;
 	unsigned int cont_id;
 	unsigned int irq;
-	bool is_dvc;
-	bool is_vi;
+
+	phys_addr_t base_phys;
+	void __iomem *base;
+
+	struct clk_bulk_data clocks[2];
+	unsigned int nclocks;
+
+	struct clk *div_clk;
+	u32 bus_clk_rate;
+
 	struct completion msg_complete;
+	size_t msg_buf_remaining;
 	int msg_err;
 	u8 *msg_buf;
-	size_t msg_buf_remaining;
-	bool msg_read;
-	u32 bus_clk_rate;
-	bool is_multimaster_mode;
+
+	struct completion dma_complete;
 	struct dma_chan *tx_dma_chan;
 	struct dma_chan *rx_dma_chan;
+	unsigned int dma_buf_size;
 	dma_addr_t dma_phys;
 	void *dma_buf;
-	unsigned int dma_buf_size;
-	bool is_curr_dma_xfer;
-	struct completion dma_complete;
+
+	bool is_multimaster_mode;
 	bool is_curr_atomic_xfer;
+	bool is_curr_dma_xfer;
+	bool msg_read;
+	bool is_dvc;
+	bool is_vi;
 };
 
 static void dvc_writel(struct tegra_i2c_dev *i2c_dev, u32 val,
-		       unsigned long reg)
+		       unsigned int reg)
 {
 	writel_relaxed(val, i2c_dev->base + reg);
 }
 
-static u32 dvc_readl(struct tegra_i2c_dev *i2c_dev, unsigned long reg)
+static u32 dvc_readl(struct tegra_i2c_dev *i2c_dev, unsigned int reg)
 {
 	return readl_relaxed(i2c_dev->base + reg);
 }
@@ -303,8 +310,7 @@ static u32 dvc_readl(struct tegra_i2c_dev *i2c_dev, unsigned long reg)
  * i2c_writel and i2c_readl will offset the register if necessary to talk
  * to the I2C block inside the DVC block
  */
-static unsigned long tegra_i2c_reg_addr(struct tegra_i2c_dev *i2c_dev,
-					unsigned long reg)
+static u32 tegra_i2c_reg_addr(struct tegra_i2c_dev *i2c_dev, unsigned int reg)
 {
 	if (i2c_dev->is_dvc)
 		reg += (reg >= I2C_TX_FIFO) ? 0x10 : 0x40;
@@ -313,8 +319,7 @@ static unsigned long tegra_i2c_reg_addr(struct tegra_i2c_dev *i2c_dev,
 	return reg;
 }
 
-static void i2c_writel(struct tegra_i2c_dev *i2c_dev, u32 val,
-		       unsigned long reg)
+static void i2c_writel(struct tegra_i2c_dev *i2c_dev, u32 val, unsigned int reg)
 {
 	writel_relaxed(val, i2c_dev->base + tegra_i2c_reg_addr(i2c_dev, reg));
 
@@ -323,19 +328,19 @@ static void i2c_writel(struct tegra_i2c_dev *i2c_dev, u32 val,
 		readl_relaxed(i2c_dev->base + tegra_i2c_reg_addr(i2c_dev, reg));
 }
 
-static u32 i2c_readl(struct tegra_i2c_dev *i2c_dev, unsigned long reg)
+static u32 i2c_readl(struct tegra_i2c_dev *i2c_dev, unsigned int reg)
 {
 	return readl_relaxed(i2c_dev->base + tegra_i2c_reg_addr(i2c_dev, reg));
 }
 
 static void i2c_writesl(struct tegra_i2c_dev *i2c_dev, void *data,
-			unsigned long reg, unsigned int len)
+			unsigned int reg, unsigned int len)
 {
 	writesl(i2c_dev->base + tegra_i2c_reg_addr(i2c_dev, reg), data, len);
 }
 
 static void i2c_readsl(struct tegra_i2c_dev *i2c_dev, void *data,
-		       unsigned long reg, unsigned int len)
+		       unsigned int reg, unsigned int len)
 {
 	readsl(i2c_dev->base + tegra_i2c_reg_addr(i2c_dev, reg), data, len);
 }
@@ -410,8 +415,8 @@ static void tegra_i2c_release_dma(struct tegra_i2c_dev *i2c_dev)
 static int tegra_i2c_init_dma(struct tegra_i2c_dev *i2c_dev)
 {
 	struct dma_chan *chan;
-	u32 *dma_buf;
 	dma_addr_t dma_phys;
+	u32 *dma_buf;
 	int err;
 
 	if (!i2c_dev->hw->has_apb_dma || i2c_dev->is_vi)
@@ -577,12 +582,8 @@ static int tegra_i2c_wait_for_config_load(struct tegra_i2c_dev *i2c_dev)
 
 static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
 {
-	u32 val;
+	u32 val, clk_divisor, clk_multiplier, tsu_thd, tlow, thigh, non_hs_mode;
 	int err;
-	u32 clk_divisor, clk_multiplier;
-	u32 non_hs_mode;
-	u32 tsu_thd;
-	u8 tlow, thigh;
 
 	/*
 	 * The reset shouldn't ever fail in practice. The failure will be a
@@ -704,11 +705,10 @@ static int tegra_i2c_disable_packet_mode(struct tegra_i2c_dev *i2c_dev)
 
 static int tegra_i2c_empty_rx_fifo(struct tegra_i2c_dev *i2c_dev)
 {
-	u32 val;
-	unsigned int rx_fifo_avail;
-	u8 *buf = i2c_dev->msg_buf;
 	size_t buf_remaining = i2c_dev->msg_buf_remaining;
-	unsigned int words_to_transfer;
+	unsigned int words_to_transfer, rx_fifo_avail;
+	u8 *buf = i2c_dev->msg_buf;
+	u32 val;
 
 	/*
 	 * Catch overflow due to message fully sent
@@ -765,11 +765,10 @@ static int tegra_i2c_empty_rx_fifo(struct tegra_i2c_dev *i2c_dev)
 
 static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev)
 {
-	u32 val;
-	unsigned int tx_fifo_avail;
-	u8 *buf = i2c_dev->msg_buf;
 	size_t buf_remaining = i2c_dev->msg_buf_remaining;
-	unsigned int words_to_transfer;
+	unsigned int words_to_transfer, tx_fifo_avail;
+	u8 *buf = i2c_dev->msg_buf;
+	u32 val;
 
 	if (i2c_dev->hw->has_mst_fifo) {
 		val = i2c_readl(i2c_dev, I2C_MST_FIFO_STATUS);
@@ -830,9 +829,9 @@ static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev)
 
 static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
 {
-	u32 status;
 	const u32 status_err = I2C_INT_NO_ACK | I2C_INT_ARBITRATION_LOST;
 	struct tegra_i2c_dev *i2c_dev = dev_id;
+	u32 status;
 
 	status = i2c_readl(i2c_dev, I2C_INT_STATUS);
 
@@ -936,12 +935,10 @@ done:
 static void tegra_i2c_config_fifo_trig(struct tegra_i2c_dev *i2c_dev,
 				       size_t len)
 {
-	u32 val, reg;
-	u8 dma_burst;
 	struct dma_slave_config slv_config = {0};
+	u32 val, reg, dma_burst, reg_offset;
 	struct dma_chan *chan;
 	int ret;
-	unsigned long reg_offset;
 
 	if (i2c_dev->hw->has_mst_fifo)
 		reg = I2C_MST_FIFO_CONTROL;
@@ -1063,9 +1060,8 @@ 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;
 	int err;
-	unsigned long time_left;
-	u32 reg;
 
 	reinit_completion(&i2c_dev->msg_complete);
 	reg = FIELD_PREP(I2C_BC_SCLK_THRESHOLD, 9) | I2C_BC_STOP_COND |
@@ -1179,11 +1175,10 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 			      struct i2c_msg *msg,
 			      enum msg_end_type end_state)
 {
-	u32 int_mask;
-	unsigned long time_left;
+	unsigned long time_left, xfer_time = 100;
 	size_t xfer_size;
-	int err = 0;
-	u16 xfer_time = 100;
+	u32 int_mask;
+	int err;
 
 	err = tegra_i2c_flush_fifos(i2c_dev);
 	if (err)
@@ -1334,8 +1329,7 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
 			  int num)
 {
 	struct tegra_i2c_dev *i2c_dev = i2c_get_adapdata(adap);
-	int i;
-	int ret;
+	int i, ret;
 
 	ret = pm_runtime_get_sync(i2c_dev->dev);
 	if (ret < 0) {
@@ -1595,8 +1589,8 @@ MODULE_DEVICE_TABLE(of, tegra_i2c_of_match);
 static void tegra_i2c_parse_dt(struct tegra_i2c_dev *i2c_dev)
 {
 	struct device_node *np = i2c_dev->dev->of_node;
-	int ret;
 	bool multi_mode;
+	int ret;
 
 	ret = of_property_read_u32(np, "clock-frequency",
 				   &i2c_dev->bus_clk_rate);