r8152: fix incorrect register write to USB_UPHY_XTAL

[ Upstream commit 48afd51 ]

The old code used ocp_write_byte() to clear the OOBS_POLLING bit
(BIT(8)) in the USB_UPHY_XTAL register, but this doesn't correctly
clear a bit in the upper byte of the 16-bit register.

Fix this by using ocp_write_word() instead.

Fixes: 195aae3 ("r8152: support new chips")
Signed-off-by: Chih Kai Hsu <hsu.chih.kai@realtek.com>
Reviewed-by: Hayes Wang <hayeswang@realtek.com>
Link: https://patch.msgid.link/20260326073925.32976-454-nic_swsd@realtek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: Chih Kai Hsu

drivers/net/usb/r8152.c

@@ -3859,7 +3859,7 @@ static void r8156_ups_en(struct r8152 *tp, bool enable)
 		case RTL_VER_15:
 			ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPHY_XTAL);
 			ocp_data &= ~OOBS_POLLING;
-			ocp_write_byte(tp, MCU_TYPE_USB, USB_UPHY_XTAL, ocp_data);
+			ocp_write_word(tp, MCU_TYPE_USB, USB_UPHY_XTAL, ocp_data);
 			break;
 		default:
 			break;