WORKAROUND: clk: qcom: gcc-qcs8300: Use PWRSTS_RET_ON for USB GDSCs

The USB GDSCs on QCS8300 are currently configured with PWRSTS_OFF_ON,
which allows the GDSC framework to fully collapse these power domains
during gdsc_disable(). When these GDSCs collapse, the corresponding USB
PHY configurations are not retained in USB host mode use-cases and this
breaks the resume of USB controller from suspend.

To avoid this, configure the USB GDSC power states to PWRSTS_RET_ON. This
prevents the GDSC from powering off during gdsc_disable(), and allows
hardware to retain the PHY configurations across USB host mode use-cases.

Signed-off-by: Imran Shaik <imran.shaik@oss.qualcomm.com>

Author: imrashai

drivers/clk/qcom/gcc-qcs8300.c

@@ -3306,7 +3306,7 @@ static struct gdsc gcc_usb20_prim_gdsc = {
 	.pd = {
 		.name = "gcc_usb20_prim_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 	.flags = RETAIN_FF_ENABLE | POLL_CFG_GDSCR,
 };
 
@@ -3318,7 +3318,7 @@ static struct gdsc gcc_usb30_prim_gdsc = {
 	.pd = {
 		.name = "gcc_usb30_prim_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 	.flags = RETAIN_FF_ENABLE | POLL_CFG_GDSCR,
 };