PWM_IMX_TPM_SC_CMOD
cmod = FIELD_GET(PWM_IMX_TPM_SC_CMOD, val);
val &= ~PWM_IMX_TPM_SC_CMOD;
#define PWM_IMX_TPM_SC_CMOD_INC_EVERY_CLK FIELD_PREP(PWM_IMX_TPM_SC_CMOD, 1)