Set the clock source in KL27 PWMOUT driver

By default the TPM clock source is disabled

Signed-off-by: Mahadevan Mahesh <[email protected]>

Author: mmahadevan108

hal/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL27Z/pwmout_api.c

@@ -34,6 +34,9 @@ void pwmout_init(pwmout_t* obj, PinName pin) {
     obj->pwm_name = pwm;
 
     uint32_t pwm_base_clock;
+
+    /* Set the TPM clock source to be IRC 48M */
+    CLOCK_SetTpmClock(1U);
     pwm_base_clock = CLOCK_GetFreq(kCLOCK_McgIrc48MClk);
     float clkval = (float)pwm_base_clock / 1000000.0f;
     uint32_t clkdiv = 0;