FSL_PWM_CLK_EXT
ext_rate = clk_get_rate(fpc->clk[FSL_PWM_CLK_EXT]);
m1 = FSL_PWM_CLK_EXT;
m0 = FSL_PWM_CLK_EXT;
fpc->clk[FSL_PWM_CLK_EXT] = devm_clk_get(&pdev->dev, "ftm_ext");
if (IS_ERR(fpc->clk[FSL_PWM_CLK_EXT]))
return PTR_ERR(fpc->clk[FSL_PWM_CLK_EXT]);