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From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	David Lechner <david@lechnology.com>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH 3/4] ARM: dts: da850-evm: enable cpufreq
Date: Thu, 21 Mar 2019 15:10:09 +0100	[thread overview]
Message-ID: <20190321141010.19612-4-brgl@bgdev.pl> (raw)
In-Reply-To: <20190321141010.19612-1-brgl@bgdev.pl>

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Enable cpufreq-dt support for da850-evm. The cvdd regulator is fixed
at 1.2V on this board so disable the lower operating points and enable
the 375MHz opp.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 arch/arm/boot/dts/da850-evm.dts | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index f04bc3e15332..f63867692da4 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -151,6 +151,15 @@
 			system-clock-frequency = <24576000>;
 		};
 	};
+
+	cvdd: regulator0 {
+		compatible = "regulator-fixed";
+		regulator-name = "cvdd";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
 };
 
 &ecap2 {
@@ -191,6 +200,27 @@
 	};
 };
 
+&cpu {
+	cpu-supply = <&cvdd>;
+};
+
+/*
+ * DA850-EVM has a fixed CVDD of 1.2V - we cannot go below 300MHz or
+ * above 375MHz.
+ */
+
+&opp_100 {
+	status = "disabled";
+};
+
+&opp_200 {
+	status = "disabled";
+};
+
+&opp_375 {
+	status = "okay";
+};
+
 &sata {
 	status = "okay";
 };
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	David Lechner <david@lechnology.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH 3/4] ARM: dts: da850-evm: enable cpufreq
Date: Thu, 21 Mar 2019 15:10:09 +0100	[thread overview]
Message-ID: <20190321141010.19612-4-brgl@bgdev.pl> (raw)
In-Reply-To: <20190321141010.19612-1-brgl@bgdev.pl>

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Enable cpufreq-dt support for da850-evm. The cvdd regulator is fixed
at 1.2V on this board so disable the lower operating points and enable
the 375MHz opp.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 arch/arm/boot/dts/da850-evm.dts | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index f04bc3e15332..f63867692da4 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -151,6 +151,15 @@
 			system-clock-frequency = <24576000>;
 		};
 	};
+
+	cvdd: regulator0 {
+		compatible = "regulator-fixed";
+		regulator-name = "cvdd";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
 };
 
 &ecap2 {
@@ -191,6 +200,27 @@
 	};
 };
 
+&cpu {
+	cpu-supply = <&cvdd>;
+};
+
+/*
+ * DA850-EVM has a fixed CVDD of 1.2V - we cannot go below 300MHz or
+ * above 375MHz.
+ */
+
+&opp_100 {
+	status = "disabled";
+};
+
+&opp_200 {
+	status = "disabled";
+};
+
+&opp_375 {
+	status = "okay";
+};
+
 &sata {
 	status = "okay";
 };
-- 
2.20.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-03-21 14:10 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-21 14:10 [PATCH 0/4] ARM: da850: enable cpufreq in DT mode Bartosz Golaszewski
2019-03-21 14:10 ` Bartosz Golaszewski
2019-03-21 14:10 ` [PATCH 1/4] ARM: davinci: fix cpufreq registration on da850-evm Bartosz Golaszewski
2019-03-21 14:10   ` Bartosz Golaszewski
2019-03-21 14:10 ` [PATCH 2/4] ARM: dts: da850: add cpu node and operating points to DT Bartosz Golaszewski
2019-03-21 14:10   ` Bartosz Golaszewski
2019-03-21 15:56   ` David Lechner
2019-03-21 15:56     ` David Lechner
2019-03-21 14:10 ` Bartosz Golaszewski [this message]
2019-03-21 14:10   ` [PATCH 3/4] ARM: dts: da850-evm: enable cpufreq Bartosz Golaszewski
2019-03-21 15:53   ` David Lechner
2019-03-21 15:53     ` David Lechner
2019-03-21 16:36     ` Bartosz Golaszewski
2019-03-21 16:36       ` Bartosz Golaszewski
2019-03-21 16:43       ` Bartosz Golaszewski
2019-03-21 16:43         ` Bartosz Golaszewski
2019-03-21 17:13         ` Bartosz Golaszewski
2019-03-21 17:13           ` Bartosz Golaszewski
2019-03-21 14:10 ` [PATCH 4/4] ARM: davinci_all_defconfig: Enable CPUFREQ_DT Bartosz Golaszewski
2019-03-21 14:10   ` Bartosz Golaszewski
2019-03-21 15:29 ` [PATCH 0/4] ARM: da850: enable cpufreq in DT mode David Lechner
2019-03-21 15:29   ` David Lechner
2019-03-21 15:40   ` Bartosz Golaszewski
2019-03-21 15:40     ` Bartosz Golaszewski

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