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Message-Id: <1622095949-2014-4-git-send-email-rnayak@codeaurora.org>
Date: Thu, 27 May 2021 11:42:29 +0530
From: Rajendra Nayak <rnayak@...eaurora.org>
To: ulf.hansson@...aro.org, robh+dt@...nel.org,
bjorn.andersson@...aro.org, viresh.kumar@...aro.org
Cc: linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
swboyd@...omium.org, rojay@...eaurora.org,
Rajendra Nayak <rnayak@...eaurora.org>
Subject: [PATCH v2 3/3] arm64: dts: sc7180: Add assigned-performance-states for i2c
qup-i2c devices on sc7180 are clocked with a fixed clock (19.2 MHz)
Though qup-i2c does not support DVFS, it still needs to vote for a
performance state on 'CX' to satisfy the 19.2 Mhz clock frequency
requirement.
Use 'assigned-performance-states' to pass this information from
device tree, and also add the power-domains property to specify
the cx power-domain.
Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 6228ba2..7914084 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -786,8 +786,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>,
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi0: spi@...000 {
@@ -838,8 +840,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>,
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi1: spi@...000 {
@@ -890,8 +894,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>,
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
uart2: serial@...000 {
@@ -924,8 +930,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>,
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi3: spi@...000 {
@@ -976,8 +984,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>,
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
uart4: serial@...000 {
@@ -1010,8 +1020,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>,
<&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi5: spi@...000 {
@@ -1077,8 +1089,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>,
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi6: spi@...000 {
@@ -1129,8 +1143,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>,
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
uart7: serial@...000 {
@@ -1163,8 +1179,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>,
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi8: spi@...000 {
@@ -1215,8 +1233,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>,
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
uart9: serial@...000 {
@@ -1249,8 +1269,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>,
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi10: spi@...000 {
@@ -1301,8 +1323,10 @@
<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>,
<&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>;
interconnect-names = "qup-core", "qup-config",
"qup-memory";
+ power-domains = <&rpmhpd SC7180_CX>;
+ assigned-performance-states = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
status = "disabled";
};
spi11: spi@...000 {
--
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