mfd: rtsx: Configure to enter a deeper power-saving mode in S3

Set a bit to enable rts5227 and rts5249 to enter a deeper internal
power-saving mode in S3, and recover it after resuming.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/rts5209.c b/drivers/mfd/rts5209.c
index 03a15f7..ef6a59f 100644
--- a/drivers/mfd/rts5209.c
+++ b/drivers/mfd/rts5209.c
@@ -59,7 +59,7 @@
 	}
 }
 
-static void rts5209_force_power_down(struct rtsx_pcr *pcr)
+static void rts5209_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
 {
 	rtsx_pci_write_register(pcr, FPDCTL, 0x07, 0x07);
 }