diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2010-04-14 18:29:17 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-30 09:30:10 -0700 |
| commit | 6536560cabab170ed2969b005bf69a496e9c45bf (patch) | |
| tree | 0b4453d8abd63b0d44814f1fad6063edce2d157b | |
| parent | d01f42a22ef381ba973958e977209ac9a8667d57 (diff) | |
Staging: dt3155: fix 50Hz configuration
According to the header file, dt3155_io.h, the 50/60 Hz configuration
is controlled by a bit in the I2C CSR2 register (bit 2). The function
dt3155_init_isr actually reads the I2C CONFIG register into the global
I2C_CSR union variable then modifies the bit. It then does a write
to the I2C CONFIG register with the global I2C_CONFIG union variable
which is not even set with a value anywhere in the driver.
My guess is 50Hz operation doesn't even work as-is.
Fix this by actually reading and writing the correct register with
the correct value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/dt3155/dt3155_drv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/dt3155/dt3155_drv.c b/drivers/staging/dt3155/dt3155_drv.c index e2c44ec6fc4..7ac2c6d8e9a 100644 --- a/drivers/staging/dt3155/dt3155_drv.c +++ b/drivers/staging/dt3155/dt3155_drv.c @@ -464,9 +464,9 @@ static void dt3155_init_isr(int minor) /* 50/60 Hz should be set before this point but let's make sure it is */ /* right anyway */ - ReadI2C(dt3155_lbase[ minor ], CONFIG, &i2c_csr2.reg); + ReadI2C(dt3155_lbase[ minor ], CSR2, &i2c_csr2.reg); i2c_csr2.fld.HZ50 = FORMAT50HZ; - WriteI2C(dt3155_lbase[ minor ], CONFIG, i2c_config.reg); + WriteI2C(dt3155_lbase[ minor ], CSR2, i2c_csr2.reg); /* enable busmaster chip, clear flags */ |