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| author |   Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> | 2011-05-13 12:30:42 +0200 |
|---|---|---|
| committer |   Ben Dooks <ben-linux@fluff.org> | 2011-05-25 00:20:50 +0100 |
| commit | b5e890f7e70707d1e10e8d4844806d2223e8b36d (patch) | |
| tree | 5cda127810c3426ebcdc5ff7c52250f652d4a6a6 /drivers/i2c | |
| parent | i2c-nomadik: change the TX and RX threshold (diff) | |
| download | linux-dev-b5e890f7e70707d1e10e8d4844806d2223e8b36d.tar.xz linux-dev-b5e890f7e70707d1e10e8d4844806d2223e8b36d.zip | |
i2c-nomadik: remove the unnecessary delay
The delay in the driver seems to be not needed, so remove it.
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Reviewed-by: Markus Grape <markus.grape@stericsson.com>
Tested-by: Per Persson <per.xb.persson@stericsson.com>
Tested-by: Chethan Krishna N <chethan.krishna@stericsson.com>
Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-nomadik.c | 20 |
1 files changed, 2 insertions, 18 deletions
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c index e3cd62e40df5..b2de1a56dc8d 100644 --- a/drivers/i2c/busses/i2c-nomadik.c +++ b/drivers/i2c/busses/i2c-nomadik.c @@ -15,7 +15,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/delay.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/i2c.h> @@ -105,9 +104,6 @@ /* maximum threshold value */ #define MAX_I2C_FIFO_THRESHOLD 15 -/* per-transfer delay, required for the hardware to stabilize */ -#define I2C_DELAY 150 - enum i2c_status { I2C_NOP, I2C_ON_GOING, @@ -269,12 +265,6 @@ static int init_hw(struct nmk_i2c_dev *dev) dev->cli.operation = I2C_NO_OPERATION; exit: - /* - * TODO: What is this delay for? - * Must be pretty pointless since the hw block - * is frozen. Or? - */ - udelay(I2C_DELAY); return stat; } @@ -652,7 +642,6 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap, break; } - udelay(I2C_DELAY); } if (status == 0) break; @@ -778,13 +767,8 @@ static irqreturn_t i2c_irq_handler(int irq, void *arg) } } - i2c_set_bit(dev->virtbase + I2C_ICR, I2C_IT_MTD); - i2c_set_bit(dev->virtbase + I2C_ICR, I2C_IT_MTDWS); - - disable_interrupts(dev, - (I2C_IT_TXFNE | I2C_IT_TXFE | I2C_IT_TXFF - | I2C_IT_TXFOVR | I2C_IT_RXFNF - | I2C_IT_RXFF | I2C_IT_RXFE)); + disable_all_interrupts(dev); + clear_all_interrupts(dev); if (dev->cli.count) { dev->result = -EIO; |