diff options
| author | Jon Hunter <jonathanh@nvidia.com> | 2016-08-26 15:08:59 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2016-08-30 21:58:03 +0200 |
| commit | f5076685b3aa4f292ca322404886fee8d3d4f03d (patch) | |
| tree | c892ba02b4ba7253864eee622639049d6daba4b9 /drivers/i2c/busses/i2c-tegra.c | |
| parent | i2c: tegra: Use BIT macro (diff) | |
| download | linux-f5076685b3aa4f292ca322404886fee8d3d4f03d.tar.xz linux-f5076685b3aa4f292ca322404886fee8d3d4f03d.zip | |
i2c: tegra: Fix missing blank lines after declarations
Checkpatch warns about missing blank lines after declarations in the
Tegra I2C driver and so fix these.
Note that the initialisation of 'val' to zero in tegra_dvc_init() is
unnecessary and so remove this.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/busses/i2c-tegra.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 98d13437eb42..7a7f899936a3 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -245,15 +245,17 @@ static void i2c_readsl(struct tegra_i2c_dev *i2c_dev, void *data, static void tegra_i2c_mask_irq(struct tegra_i2c_dev *i2c_dev, u32 mask) { - u32 int_mask = i2c_readl(i2c_dev, I2C_INT_MASK); - int_mask &= ~mask; + u32 int_mask; + + int_mask = i2c_readl(i2c_dev, I2C_INT_MASK) & ~mask; i2c_writel(i2c_dev, int_mask, I2C_INT_MASK); } static void tegra_i2c_unmask_irq(struct tegra_i2c_dev *i2c_dev, u32 mask) { - u32 int_mask = i2c_readl(i2c_dev, I2C_INT_MASK); - int_mask |= mask; + u32 int_mask; + + int_mask = i2c_readl(i2c_dev, I2C_INT_MASK) | mask; i2c_writel(i2c_dev, int_mask, I2C_INT_MASK); } @@ -261,6 +263,7 @@ static int tegra_i2c_flush_fifos(struct tegra_i2c_dev *i2c_dev) { unsigned long timeout = jiffies + HZ; u32 val = i2c_readl(i2c_dev, I2C_FIFO_CONTROL); + val |= I2C_FIFO_CONTROL_TX_FLUSH | I2C_FIFO_CONTROL_RX_FLUSH; i2c_writel(i2c_dev, val, I2C_FIFO_CONTROL); @@ -386,7 +389,8 @@ static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev) */ static void tegra_dvc_init(struct tegra_i2c_dev *i2c_dev) { - u32 val = 0; + u32 val; + val = dvc_readl(i2c_dev, DVC_CTRL_REG3); val |= DVC_CTRL_REG3_SW_PROG; val |= DVC_CTRL_REG3_I2C_DONE_INTR_EN; @@ -400,6 +404,7 @@ static void tegra_dvc_init(struct tegra_i2c_dev *i2c_dev) static inline int tegra_i2c_clock_enable(struct tegra_i2c_dev *i2c_dev) { int ret; + if (!i2c_dev->hw->has_single_clk_source) { ret = clk_enable(i2c_dev->fast_clk); if (ret < 0) { @@ -461,11 +466,11 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) if (!i2c_dev->is_dvc) { u32 sl_cfg = i2c_readl(i2c_dev, I2C_SL_CNFG); + sl_cfg |= I2C_SL_CNFG_NACK | I2C_SL_CNFG_NEWSL; i2c_writel(i2c_dev, sl_cfg, I2C_SL_CNFG); i2c_writel(i2c_dev, 0xfc, I2C_SL_ADDR1); i2c_writel(i2c_dev, 0x00, I2C_SL_ADDR2); - } val = 7 << I2C_FIFO_CONTROL_TX_TRIG_SHIFT | @@ -680,6 +685,7 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], for (i = 0; i < num; i++) { enum msg_end_type end_type = MSG_END_STOP; + if (i < (num - 1)) { if (msgs[i + 1].flags & I2C_M_NOSTART) end_type = MSG_END_CONTINUE; @@ -956,6 +962,7 @@ unprepare_fast_clk: static int tegra_i2c_remove(struct platform_device *pdev) { struct tegra_i2c_dev *i2c_dev = platform_get_drvdata(pdev); + i2c_del_adapter(&i2c_dev->adapter); if (i2c_dev->is_multimaster_mode) |