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-rw-r--r--src/portable/wch/dcd_ch32h417_usb30.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/portable/wch/dcd_ch32h417_usb30.c b/src/portable/wch/dcd_ch32h417_usb30.c
index e79e1e478..dcdc0678f 100644
--- a/src/portable/wch/dcd_ch32h417_usb30.c
+++ b/src/portable/wch/dcd_ch32h417_usb30.c
@@ -117,10 +117,10 @@ static void usbss_rcc_init(bool enable) {
}
}
-static uint32_t usbss_phy_cfg(uint8_t addr, uint16_t data) {
+static void usbss_phy_cfg(uint8_t addr, uint16_t data) {
USBSS_PHY_CFG_CR = (1u << 23) | ((uint32_t)addr << 16) | data;
USBSS_PHY_CFG_DAT = 0x01;
- return USBSS_PHY_CFG_DAT;
+ (void)USBSS_PHY_CFG_DAT; // read-back strobe; the returned value is not used
}
static void usbss_cfg_mod(void) {