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Date: Fri, 16 Jul 2021 15:30:58 +0530
From: Rajendra Nayak <rnayak@...eaurora.org>
To: ulf.hansson@...aro.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, stephan@...hold.net,
Rajendra Nayak <rnayak@...eaurora.org>
Subject: [PATCH v4 2/2] arm64: dts: sc7180: Add required-opps 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 'required-opps' 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 a5d58eb..cd30185 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -785,8 +785,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi0: spi@...000 {
@@ -837,8 +839,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi1: spi@...000 {
@@ -889,8 +893,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
uart2: serial@...000 {
@@ -923,8 +929,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi3: spi@...000 {
@@ -975,8 +983,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
uart4: serial@...000 {
@@ -1009,8 +1019,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi5: spi@...000 {
@@ -1074,8 +1086,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi6: spi@...000 {
@@ -1126,8 +1140,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
uart7: serial@...000 {
@@ -1160,8 +1176,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi8: spi@...000 {
@@ -1212,8 +1230,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
uart9: serial@...000 {
@@ -1246,8 +1266,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi10: spi@...000 {
@@ -1298,8 +1320,10 @@
<&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>;
+ required-opps = <&rpmhpd_opp_low_svs>;
status = "disabled";
};
spi11: spi@...000 {
--
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