FSL_PWM_CLK_SYS
ret = fsl_pwm_calculate_period_clk(fpc, period_ns, FSL_PWM_CLK_SYS,
fpc->clk[FSL_PWM_CLK_SYS] = devm_clk_get(&pdev->dev, "ftm_sys");
if (IS_ERR(fpc->clk[FSL_PWM_CLK_SYS])) {
return PTR_ERR(fpc->clk[FSL_PWM_CLK_SYS]);
fpc->ipg_clk = fpc->clk[FSL_PWM_CLK_SYS];