[PATCH] clk: qcom: gcc-sm8250: Use retention mode for USB GDSCs

* [PATCH] clk: qcom: gcc-sm8250: Use retention mode for USB GDSCs
@ 2022-11-01 17:33 Manivannan Sadhasivam
  2022-11-01 18:22 ` Stephen Boyd
  0 siblings, 1 reply; 2+ messages in thread
From: Manivannan Sadhasivam @ 2022-11-01 17:33 UTC (permalink / raw)
  To: andersson
  Cc: konrad.dybcio, mturquette, sboyd, linux-arm-msm, linux-clk,
	linux-kernel, Manivannan Sadhasivam

USB controllers on SM8250 doesn't work after coming back from suspend.
This can be fixed by keeping the USB GDSCs in retention mode so that
hardware can keep them ON and put into rentention mode once the parent
domain goes to a low power state.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/clk/qcom/gcc-sm8250.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/qcom/gcc-sm8250.c b/drivers/clk/qcom/gcc-sm8250.c
index 9755ef4888c1..a0ba37656b07 100644
--- a/drivers/clk/qcom/gcc-sm8250.c
+++ b/drivers/clk/qcom/gcc-sm8250.c
@@ -3267,7 +3267,7 @@ static struct gdsc usb30_prim_gdsc = {
 	.pd = {
 		.name = "usb30_prim_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 };
 
 static struct gdsc usb30_sec_gdsc = {
@@ -3275,7 +3275,7 @@ static struct gdsc usb30_sec_gdsc = {
 	.pd = {
 		.name = "usb30_sec_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 };
 
 static struct gdsc hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc = {
-- 
2.25.1


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