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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-01-22 19:31:46 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-02-08 17:50:20 +0000 |
| commit | 0e9ae109e4eece027ede4f3f0edc8e659f8298c9 (patch) | |
| tree | 9d4276cb34160a629ee14b732ecbd371a0850342 /drivers/i2c/busses/i2c-omap.c | |
| parent | 1d14de087dd1cab0436fb7c9d5e38d852f33df69 (diff) | |
| download | lwn-0e9ae109e4eece027ede4f3f0edc8e659f8298c9.tar.gz lwn-0e9ae109e4eece027ede4f3f0edc8e659f8298c9.zip | |
[ARM] omap: i2c: remove armxor_ck
On OMAP1, the I2C functional clock (fck) is the armxor_ck, so there's
no need to get "armxor_ck" separately.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/i2c/busses/i2c-omap.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-omap.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 19f86e1eefa1..96814fb67155 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -312,15 +312,14 @@ static int omap_i2c_init(struct omap_i2c_dev *dev) omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0); if (cpu_class_is_omap1()) { - struct clk *armxor_ck; - - armxor_ck = clk_get(NULL, "armxor_ck"); - if (IS_ERR(armxor_ck)) - dev_warn(dev->dev, "Could not get armxor_ck\n"); - else { - fclk_rate = clk_get_rate(armxor_ck); - clk_put(armxor_ck); - } + /* + * The I2C functional clock is the armxor_ck, so there's + * no need to get "armxor_ck" separately. Now, if OMAP2420 + * always returns 12MHz for the functional clock, we can + * do this bit unconditionally. + */ + fclk_rate = clk_get_rate(dev->fclk); + /* TRM for 5912 says the I2C clock must be prescaled to be * between 7 - 12 MHz. The XOR input clock is typically * 12, 13 or 19.2 MHz. So we should have code that produces: |