drivers: usb: udc: prevent USB clock disable in sleep mode

Prevent disabling OTG HS and USBPHY clocks
during sleep on STM32U5 series

Disabling these clocks during sleep mode
was causing USB device initialization issues

Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <[email protected]>

Author: marwaiehm-st

drivers/usb/udc/udc_stm32.c

@@ -1143,9 +1143,6 @@ static int priv_clock_enable(void)
 	LL_AHB1_GRP1_DisableClockSleep(LL_AHB1_GRP1_PERIPH_USB1OTGHSULPI);
 #elif defined(CONFIG_SOC_SERIES_STM32U5X)
 	LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_USBPHY);
-	/* Both OTG HS and USBPHY sleep clock MUST be disabled here at the same time */
-	LL_AHB2_GRP1_DisableClockStopSleep(LL_AHB2_GRP1_PERIPH_OTG_HS |
-						LL_AHB2_GRP1_PERIPH_USBPHY);
 #elif DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_otghs)
 	/* Reset specific configuration bits before setting new values */
 	USB1_HS_PHYC->USBPHYC_CR &= ~USB_USBPHYC_CR_FSEL_Msk;