> "hsi2c_pclk" clock is optional and may not be present for some SoCs > supported by this driver. Nevertheless, in case the clock is provided but > some error happens during its getting, that error should be handled > properly. Use devm_clk_get_optional() API for that. Also report possible > errors using dev_err_probe() to handle properly -EPROBE_DEFER error (if > clock provider is not ready by the time I2C probe function is executed). > > Fixes: c93ac09df2a8 ("i2c: exynos5: Add bus clock support") > Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx> Reviewed-by: Chanho Park <chanho61.park@xxxxxxxxxxx>