i2c: designware: Call i2c_dw_clk_rate() only when calculating timings
authorJarkko Nikula <jarkko.nikula@linux.intel.com>
Mon, 1 Oct 2018 11:49:05 +0000 (14:49 +0300)
committerWolfram Sang <wsa@the-dreams.de>
Fri, 5 Oct 2018 11:40:05 +0000 (13:40 +0200)
commit9ce7610e6d201e3923c0b2f454f2e1d54f5da49e
tree9cb5f7d68703b30af79028e3d58e49559a05248e
parent08d9db00fe0e300d6df976e6c294f974988226dd
i2c: designware: Call i2c_dw_clk_rate() only when calculating timings

There are platforms which don't provide input clock rate but provide
I2C timing parameters. Commit 3bd4f277274b ("i2c: designware: Call
i2c_dw_clk_rate() only once in i2c_dw_init_master()") causes needless
warning during probe on those platforms since i2c_dw_clk_rate(), which
causes the warning when input clock is unknown, is called even when
there is no need to calculate timing parameters.

Fixes: 3bd4f277274b ("i2c: designware: Call i2c_dw_clk_rate() only once in i2c_dw_init_master()")
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org> # 4.19
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/busses/i2c-designware-master.c