linux-kernel - [PATCH v2 1/3] clk: qcom: gcc-sc8280xp: Add missing GDSC flags

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Message-Id: <20230620-topic-sc8280_gccgdsc-v2-1-562c1428c10d@linaro.org>
Date:   Mon, 26 Jun 2023 19:48:06 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v2 1/3] clk: qcom: gcc-sc8280xp: Add missing GDSC flags

All of the 8280's GCC GDSCs can and should use the retain registers so
as not to lose their state when entering lower power modes.

Fixes: d65d005f9a6c ("clk: qcom: add sc8280xp GCC driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/clk/qcom/gcc-sc8280xp.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/qcom/gcc-sc8280xp.c b/drivers/clk/qcom/gcc-sc8280xp.c
index b90c71637814..64bea886322d 100644
--- a/drivers/clk/qcom/gcc-sc8280xp.c
+++ b/drivers/clk/qcom/gcc-sc8280xp.c
@@ -6761,7 +6761,7 @@ static struct gdsc pcie_0_tunnel_gdsc = {
 		.name = "pcie_0_tunnel_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc pcie_1_tunnel_gdsc = {
@@ -6772,7 +6772,7 @@ static struct gdsc pcie_1_tunnel_gdsc = {
 		.name = "pcie_1_tunnel_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE,
+	.flags = VOTABLE | RETAIN_FF_ENABLE,
 };
 
 /*
@@ -6787,7 +6787,7 @@ static struct gdsc pcie_2a_gdsc = {
 		.name = "pcie_2a_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | ALWAYS_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
 };
 
 static struct gdsc pcie_2b_gdsc = {
@@ -6798,7 +6798,7 @@ static struct gdsc pcie_2b_gdsc = {
 		.name = "pcie_2b_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | ALWAYS_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
 };
 
 static struct gdsc pcie_3a_gdsc = {
@@ -6809,7 +6809,7 @@ static struct gdsc pcie_3a_gdsc = {
 		.name = "pcie_3a_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | ALWAYS_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
 };
 
 static struct gdsc pcie_3b_gdsc = {
@@ -6820,7 +6820,7 @@ static struct gdsc pcie_3b_gdsc = {
 		.name = "pcie_3b_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | ALWAYS_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
 };
 
 static struct gdsc pcie_4_gdsc = {
@@ -6831,7 +6831,7 @@ static struct gdsc pcie_4_gdsc = {
 		.name = "pcie_4_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE | ALWAYS_ON,
+	.flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON,
 };
 
 static struct gdsc ufs_card_gdsc = {
@@ -6840,6 +6840,7 @@ static struct gdsc ufs_card_gdsc = {
 		.name = "ufs_card_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct gdsc ufs_phy_gdsc = {
@@ -6848,6 +6849,7 @@ static struct gdsc ufs_phy_gdsc = {
 		.name = "ufs_phy_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct gdsc usb30_mp_gdsc = {
@@ -6856,6 +6858,7 @@ static struct gdsc usb30_mp_gdsc = {
 		.name = "usb30_mp_gdsc",
 	},
 	.pwrsts = PWRSTS_RET_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct gdsc usb30_prim_gdsc = {
@@ -6864,6 +6867,7 @@ static struct gdsc usb30_prim_gdsc = {
 		.name = "usb30_prim_gdsc",
 	},
 	.pwrsts = PWRSTS_RET_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct gdsc usb30_sec_gdsc = {
@@ -6872,6 +6876,7 @@ static struct gdsc usb30_sec_gdsc = {
 		.name = "usb30_sec_gdsc",
 	},
 	.pwrsts = PWRSTS_RET_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct gdsc emac_0_gdsc = {
@@ -6880,6 +6885,7 @@ static struct gdsc emac_0_gdsc = {
 		.name = "emac_0_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct gdsc emac_1_gdsc = {
@@ -6888,6 +6894,7 @@ static struct gdsc emac_1_gdsc = {
 		.name = "emac_1_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
+	.flags = RETAIN_FF_ENABLE,
 };
 
 static struct clk_regmap *gcc_sc8280xp_clocks[] = {

-- 
2.41.0