Hi Nicolin, On Tue, Feb 25, 2014 at 12:46 AM, Nicolin Chen <Guangyu.Chen@xxxxxxxxxxxxx> wrote: >> So register it from the ESAI driver then. > > Then I think I need to find a way to pass the clock to CODEC driver... Does this example from mxs-saif help? commit 7c9e6150f2e7cbd60e0bc9a19118ca1dc97d2780 Author: Shawn Guo <shawn.guo@xxxxxxxxxx> Date: Mon Jul 1 16:16:10 2013 +0800 ASoC: mxs: register saif mclk to clock framework Mostly the mxs system design uses saif0 mclk output as the clock source of codec. Since the mclk is implemented as a general divider with the saif clk as the parent clock, let's register the mclk as a basic clk-divider to common clock framework. Then with it being a clock provdier, clk_get() call in codec driver probe function will just work. Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html