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From:   Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To:     andersson@kernel.org, mturquette@baylibre.com, sboyd@kernel.org
Cc:     konrad.dybcio@linaro.org, johan+linaro@kernel.org,
        linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Subject: [PATCH v3] clk: qcom: gcc-sc8280xp: Allow PCIe GDSCs to enter retention state
Date:   Fri,  7 Jul 2023 13:29:26 +0530
Message-Id: <20230707075926.11726-1-manivannan.sadhasivam@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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With the minimal system suspend support in place for the PCIe driver that
keeps the interconnect path voted, the ALWAYS_ON flag can now be dropped.

Also, the pwrsts PWRSTS_RET_ON flag should be used to allow the GDSCs to
enter the retention state when the parent domain get's turned off during
system suspend.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---

This patch depends on: https://lore.kernel.org/linux-arm-msm/20230620-topic-sc8280_gccgdsc-v2-0-562c1428c10d@linaro.org/

Changes in v3:

* Fixed the erroneous PWRSTS_RET_ON assignment
* Rebased on top of Konrad's series

Changes in v2:

* Changed the patch from simple revert to changing the ALWAYS_ON flag to
  PWRSTS_RET_ON.

 drivers/clk/qcom/gcc-sc8280xp.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/clk/qcom/gcc-sc8280xp.c b/drivers/clk/qcom/gcc-sc8280xp.c
index 57bbd609151c..39c46b7ee09a 100644
--- a/drivers/clk/qcom/gcc-sc8280xp.c
+++ b/drivers/clk/qcom/gcc-sc8280xp.c
@@ -6785,8 +6785,8 @@ static struct gdsc pcie_2a_gdsc = {
 	.pd = {
 		.name = "pcie_2a_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
+	.pwrsts = PWRSTS_RET_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc pcie_2b_gdsc = {
@@ -6796,8 +6796,8 @@ static struct gdsc pcie_2b_gdsc = {
 	.pd = {
 		.name = "pcie_2b_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
+	.pwrsts = PWRSTS_RET_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc pcie_3a_gdsc = {
@@ -6807,8 +6807,8 @@ static struct gdsc pcie_3a_gdsc = {
 	.pd = {
 		.name = "pcie_3a_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
+	.pwrsts = PWRSTS_RET_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc pcie_3b_gdsc = {
@@ -6818,8 +6818,8 @@ static struct gdsc pcie_3b_gdsc = {
 	.pd = {
 		.name = "pcie_3b_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
+	.pwrsts = PWRSTS_RET_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc pcie_4_gdsc = {
@@ -6829,8 +6829,8 @@ static struct gdsc pcie_4_gdsc = {
 	.pd = {
 		.name = "pcie_4_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
+	.pwrsts = PWRSTS_RET_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc ufs_card_gdsc = {
-- 
2.25.1