diff options
| author | Xinyu Chen <xinyu.chen@freescale.com> | 2008-04-01 16:49:02 +0800 |
|---|---|---|
| committer | Daniel Schaeffer <daniel.schaeffer@timesys.com> | 2008-08-25 15:20:57 -0400 |
| commit | 8fb857971d9b67ac9373ff1af66d6f15063381fc (patch) | |
| tree | 78fdb0e2938e80556f4f946c3c330e3c3e1bd68e | |
| parent | 29e8216465abeb09c718897cc01418b44b1945c2 (diff) | |
ENGR00070270 MX31 3Stack TV-out(CH7024) I2C access failed
Add delay time between GPO1/3 power on and I2C access.
Signed-off-by: Xinyu Chen <xinyu.chen@freescale.com>
| -rw-r--r-- | drivers/video/mxc/ch7024.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/video/mxc/ch7024.c b/drivers/video/mxc/ch7024.c index 8a6b1ed35af5..eff448f55618 100644 --- a/drivers/video/mxc/ch7024.c +++ b/drivers/video/mxc/ch7024.c @@ -367,6 +367,7 @@ static int ch7024_enable(void) regulator_enable(core_reg); regulator_enable(io_reg); regulator_enable(analog_reg); + msleep(200); enabled = 1; ch7024_write_reg(CH7024_POWER, 0x00); pr_debug("CH7024 power on.\n"); @@ -399,7 +400,6 @@ static int ch7024_detect(void) set_irq_type(ch7024_client->irq, IRQF_TRIGGER_FALLING); en = ch7024_enable(); - msleep(100); ch7024_write_reg(CH7024_DAC_TRIM, 0xB4); msleep(50); @@ -426,7 +426,7 @@ static irqreturn_t hp_detect_handler(int irq, void *data) static void hp_detect_wq_handler(struct work_struct *work) { int detect; - struct mxc_hw_event event = {HWE_PHONEJACK_PLUG, 0}; + struct mxc_hw_event event = { HWE_PHONEJACK_PLUG, 0 }; detect = ch7024_detect(); @@ -692,7 +692,7 @@ static int ch7024_probe(struct i2c_client *client) regulator_enable(io_reg); regulator_enable(core_reg); regulator_enable(analog_reg); - msleep(10); + msleep(200); id = ch7024_read_reg(CH7024_DEVID); |