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From: Andrew Lunn <andrew@lunn.ch>
To: mark.rutland@arm.com
Cc: rjw@rjwysocki.net, Jason Cooper <jason@lakedaemon.net>,
	linux ARM <linux-arm-kernel@lists.infradead.org>,
	linux-pm@vger.kernel.org,
	Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>,
	Andrew Lunn <andrew@lunn.ch>
Subject: [RFC PATCH v5 4/4] mvebu: Dove: Add PMU node for cpufreq driver
Date: Tue, 17 Dec 2013 22:41:13 +0100	[thread overview]
Message-ID: <1387316473-3250-5-git-send-email-andrew@lunn.ch> (raw)
In-Reply-To: <1387316473-3250-1-git-send-email-andrew@lunn.ch>

The cpufreq driver uses the PMU node in the device tree, since it is
part of the PMU device. The dove-cpufreq driver needs access to the
DDR and CPU clock, which are the two clocks the CPU can use. There is
also an interrupt generated when the DFS hardware completes a change
of frequencey. Add these to the DT.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 arch/arm/boot/dts/dove.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 4c8028513133..42b9810e96c1 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -136,6 +136,16 @@
 				marvell,#interrupts = <5>;
 			};
 
+			pmu: pmu@d0000 {
+				compatible = "marvell,dove-pmu";
+				reg = <0xd0000 0x0700>,
+				      <0xd8000 0x0140>;
+				clocks = <&core_clk 1>, <&core_clk 3>;
+				clock-names = "cpu", "ddr";
+				interrupt-parent = <&pmu_intc>;
+				interrupts = <0>;
+			};
+
 			pmu_intc: pmu-interrupt-ctrl@d0050 {
 				compatible = "marvell,dove-pmu-intc";
 				interrupt-controller;
-- 
1.8.5.1


WARNING: multiple messages have this Message-ID (diff)
From: andrew@lunn.ch (Andrew Lunn)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v5 4/4] mvebu: Dove: Add PMU node for cpufreq driver
Date: Tue, 17 Dec 2013 22:41:13 +0100	[thread overview]
Message-ID: <1387316473-3250-5-git-send-email-andrew@lunn.ch> (raw)
In-Reply-To: <1387316473-3250-1-git-send-email-andrew@lunn.ch>

The cpufreq driver uses the PMU node in the device tree, since it is
part of the PMU device. The dove-cpufreq driver needs access to the
DDR and CPU clock, which are the two clocks the CPU can use. There is
also an interrupt generated when the DFS hardware completes a change
of frequencey. Add these to the DT.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 arch/arm/boot/dts/dove.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 4c8028513133..42b9810e96c1 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -136,6 +136,16 @@
 				marvell,#interrupts = <5>;
 			};
 
+			pmu: pmu at d0000 {
+				compatible = "marvell,dove-pmu";
+				reg = <0xd0000 0x0700>,
+				      <0xd8000 0x0140>;
+				clocks = <&core_clk 1>, <&core_clk 3>;
+				clock-names = "cpu", "ddr";
+				interrupt-parent = <&pmu_intc>;
+				interrupts = <0>;
+			};
+
 			pmu_intc: pmu-interrupt-ctrl at d0050 {
 				compatible = "marvell,dove-pmu-intc";
 				interrupt-controller;
-- 
1.8.5.1

  parent reply	other threads:[~2013-12-17 21:42 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-04 14:17 [PATCH v4 0/4] Dove cpufreq driver Andrew Lunn
2013-12-04 14:17 ` Andrew Lunn
2013-12-04 14:17 ` [PATCH v4 1/4] cpufreq: Add a cpufreq driver for Marvell Dove Andrew Lunn
2013-12-04 14:17   ` Andrew Lunn
2013-12-04 14:33   ` Jason Cooper
2013-12-04 14:33     ` Jason Cooper
2013-12-04 14:56     ` Andrew Lunn
2013-12-04 14:56       ` Andrew Lunn
2013-12-04 15:01       ` Jason Cooper
2013-12-04 15:01         ` Jason Cooper
2013-12-04 14:54   ` Mark Rutland
2013-12-04 14:54     ` Mark Rutland
2013-12-04 15:27     ` Andrew Lunn
2013-12-04 15:27       ` Andrew Lunn
2013-12-05 18:23       ` Mark Rutland
2013-12-05 18:23         ` Mark Rutland
2013-12-17 21:41     ` [RFC PATCH v5 0/4] Dove Cpufreq driver Andrew Lunn
2013-12-17 21:41       ` Andrew Lunn
2013-12-17 21:41       ` [RFC PATCH v5 1/4] cpufreq: Add a cpufreq driver for Marvell Dove Andrew Lunn
2013-12-17 21:41         ` Andrew Lunn
2013-12-20  3:32         ` Jason Cooper
2013-12-20  3:32           ` Jason Cooper
2013-12-21 16:26           ` Andrew Lunn
2013-12-21 16:26             ` Andrew Lunn
2013-12-21 19:25             ` Jason Cooper
2013-12-21 19:25               ` Jason Cooper
2013-12-21 21:54               ` Andrew Lunn
2013-12-21 21:54                 ` Andrew Lunn
2013-12-22  4:00                 ` Jason Cooper
2013-12-22  4:00                   ` Jason Cooper
2013-12-17 21:41       ` [RFC PATCH v5 2/4] mvebu: Dove: Indicate the architecture supports cpufreq Andrew Lunn
2013-12-17 21:41         ` Andrew Lunn
2013-12-17 21:41       ` [RFC PATCH v5 3/4] mvebu: Dove: Enable cpufreq driver in defconfig Andrew Lunn
2013-12-17 21:41         ` Andrew Lunn
2013-12-17 21:41       ` Andrew Lunn [this message]
2013-12-17 21:41         ` [RFC PATCH v5 4/4] mvebu: Dove: Add PMU node for cpufreq driver Andrew Lunn
2013-12-16  8:40   ` [PATCH v4 1/4] cpufreq: Add a cpufreq driver for Marvell Dove Viresh Kumar
2013-12-16  8:40     ` Viresh Kumar
2013-12-17 22:06     ` Andrew Lunn
2013-12-17 22:06       ` Andrew Lunn
2013-12-04 14:17 ` [PATCH v4 2/4] mvebu: Dove: Instantiate cpufreq driver Andrew Lunn
2013-12-04 14:17   ` Andrew Lunn
2013-12-04 14:36   ` Mark Rutland
2013-12-04 14:36     ` Mark Rutland
2013-12-04 15:02     ` Andrew Lunn
2013-12-04 15:02       ` Andrew Lunn
2013-12-05 17:54       ` Mark Rutland
2013-12-05 17:54         ` Mark Rutland
2013-12-05 18:29         ` Andrew Lunn
2013-12-05 18:29           ` Andrew Lunn
2013-12-08  0:50           ` Jason Cooper
2013-12-08  0:50             ` Jason Cooper
2013-12-04 14:17 ` [PATCH v4 3/4] mvebu: Dove: Enable cpufreq driver in defconfig Andrew Lunn
2013-12-04 14:17   ` Andrew Lunn
2013-12-04 14:17 ` [PATCH v4 4/4] mvebu: Dove: Add clocks and DFS interrupt to cpu node in DT Andrew Lunn
2013-12-04 14:17   ` Andrew Lunn
2013-12-04 14:39   ` Mark Rutland
2013-12-04 14:39     ` Mark Rutland
2013-12-04 14:55     ` Mark Rutland
2013-12-04 14:55       ` Mark Rutland
2013-12-04 14:43   ` Jason Cooper
2013-12-04 14:43     ` Jason Cooper

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