[PATCH 2/3] arm64: dts: sc7180: Add assigned-performance-states for i2c

Roja Rani Yarubandi
2020-12-24T11:14:21Z

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: Roja Rani Yarubandi <rojay@codeaurora.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 22b832fc62e3..70d74215ba8b 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -782,6 +782,8 @@ i2c0: i2c@880000 {
<&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";
};

@@ -834,6 +836,8 @@ i2c1: i2c@884000 {
<&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";
};

@@ -886,6 +890,8 @@ i2c2: i2c@888000 {
<&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";
};

@@ -920,6 +926,8 @@ i2c3: i2c@88c000 {
<&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";
};

@@ -972,6 +980,8 @@ i2c4: i2c@890000 {
<&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";
};

@@ -1006,6 +1016,8 @@ i2c5: i2c@894000 {
<&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";
};

@@ -1073,6 +1085,8 @@ i2c6: i2c@a80000 {
<&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";
};

@@ -1125,6 +1139,8 @@ i2c7: i2c@a84000 {
<&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";
};

@@ -1159,6 +1175,8 @@ i2c8: i2c@a88000 {
<&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";
};

@@ -1211,6 +1229,8 @@ i2c9: i2c@a8c000 {
<&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";
};

@@ -1245,6 +1265,8 @@ i2c10: i2c@a90000 {
<&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";
};

@@ -1297,6 +1319,8 @@ i2c11: i2c@a94000 {
<&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";
};

--
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