PWM not working on TIM2 channel 1 on STM32H753XIH6

[Npiet.1]

We are using PWM here to change the brightness of LCD display, but PWM is not working , as of now I don't have CRO's as I'm working remotely. Is there anything wrong in the below code??

#include "stm32h7xx.h"
 
void PwmGpioInitalize()
{
 /* Timer GPIO Pin Enabling */
 RCC->AHB4ENR |= RCC_AHB4ENR_GPIOAEN;
 GPIOA->MODER |= (2<<(2*15));// PA15 - 10 Alternate Function mode;
 GPIOA->PUPDR &= ~((1<<30)|(2<<30)); //PA15 - 00 NO PULL UP or PULL DOWN
 GPIOA->OTYPER &= ~(1<<15); // 0 - PA15 Selected Push Pull type
 GPIOA->OSPEEDR &= ~((1<<30)|(2<<30)); // PA15 - 00 Low Speed Selected
 GPIOA->AFR[1] |= (1<<(4*7)); // Timer2 PWM Channel 1 selected as Alternate function1
}
 
void BacklightPinGpioInitalize()
{
 /* Backlight GPIO Pin Enabling */
 RCC->AHB4ENR |= RCC_AHB4ENR_GPIOEEN;
 GPIOE->MODER |= (1<<(2*2)); //PE2 - Output Mode
 GPIOE->PUPDR &= ~((1<<4)|(2<<4));// NO PULL UP or PULL DOWN
 GPIOE->OTYPER &= ~(1<<2);// PE2 Selected Push Pull type
 GPIOE->OSPEEDR |= (2<<(2*2)); // HighSpeed is selected
}
 
/** Timer_Clock = 2 x APB2_clock = 200 MHz */
/** PWM_freq = Timer_Clock /(Period x (Prescaler + 1))*/
/** PWM_freq = (200*1000000)/(40000*1) = 5000 Hz*/
 
void PwmTimerInit(void)
{
 RCC->APB1LENR |=RCC_APB1LENR_TIM2EN; 					 // Timer2 Clock Enable
 PwmGpioInitalize(); 								 // Initialize the PWM Channel 1 GPIO - PA15
 TIM2->CCMR1 = 0X00000000;								// y De initialize
 TIM2->CR1 = 0x0000; 									// No clock division, Up counter mode,Edge Aligned mode
 TIM2->PSC = 0; 		 					// Precale value TODO:Needs to fix the PWM Frequency
 TIM2->ARR = 40000 ; 					// Set to maximum
 TIM2->CCR1 = 20000 ; 						 		// 50 % duty cycle set
 TIM2->CCMR1 |= (TIM_CCMR1_OC1M_1|TIM_CCMR1_OC1M_2);		// y 0110 - Pwm Mode 1 is selected
 TIM2->CCMR1 |= TIM_CCMR1_OC1PE; 						 // y Preload register enabled
 TIM2->CR1 |= TIM_CR1_ARPE; 						 // Auto preload register enabled
 TIM2->CR1 &= ~TIM_CR1_DIR; //ch Countermodedirup
 TIM2->CCER &= ~TIM_CCER_CC1P; 						 // Output Polarity high
 TIM2->CCER |= TIM_CCER_CC1E; 							// Signal output enable on the pin
 TIM2->CR1 |= TIM_CR1_CEN; 								// Timer Enable
}
 
void LcdSetBrightness( uint8_t BrightnessValue )
{
 uint32_t Pulse;
 /* Setting up pulse value for brightness */
 Pulse = (uint32_t)((40000 * BrightnessValue) / 100);
 
 /* Set the Capture Compare Register value */
 TIM2->CCR1 = Pulse;
}
 
void LcdBacklightOn( void )
{
 GPIOE->ODR |= 1<<2;
}
 
void LcdBacklightOff( void )
{
 GPIOE->ODR &= ~(1<<2);
}
 
int main()
{
 BacklightPinGpioInitalize();
 PwmTimerInit();
 LcdBacklightOn;
 LcdBacklightOff;
 LcdSetBrightness(60);
}