On Tue, Feb 25, 2014 at 12:06:49AM +0800, Nicolin Chen wrote:
On Mon, Feb 24, 2014 at 03:52:24PM +0000, Austin, Brian wrote:
Wait...Regarding this clock part, I just forgot the reason I put the code:
385 cs42888->clk = devm_clk_get(&i2c->dev, "mclk"); 386 if (IS_ERR(cs42888->clk)) 387 dev_warn(&i2c->dev, "failed to get the clock: %ld\n", 388 PTR_ERR(cs42888->clk));
was because the MCLK might be provided from SoC (DAI master) so it could be totally controlled by CPU DAI driver, ESAI for example has its own dividers to derive the HCKT clock (MCLK for Tx) from ahb clock in SoC clock tree, in which case we might not easily pass a valid clock phandle via DT. (RFC to this thought.)
We should be getting those clocks visible in the clock API rather than doing this.