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Mon, 11 Apr 2016 12:58:01 +0900 (KST) From: Chanwoo Choi To: myungjoo.ham@samsung.com, kyungmin.park@samsung.com, k.kozlowski@samsung.com, kgene@kernel.org, s.nawrocki@samsung.com, tomasz.figa@gmail.com Subject: [PATCH v9 12/20] ARM: dts: Add DMC bus frequency for exynos3250-rinato/monk Date: Mon, 11 Apr 2016 12:57:50 +0900 Message-id: <1460347078-15175-13-git-send-email-cw00.choi@samsung.com> X-Mailer: git-send-email 1.8.0 In-reply-to: <1460347078-15175-1-git-send-email-cw00.choi@samsung.com> References: <1460347078-15175-1-git-send-email-cw00.choi@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrBIsWRmVeSWpSXmKPExsWyRsSkQPekAne4wZ0duhbXvzxntZh/5Byr Rf+bhawW516tZLSYdH8Ci8XrF4YW/Y9fM1ucbXrDbrHp8TVWi8u75rBZfO49wmgx4/w+Jot1 G2+xW9y+zGvx8sgPRoul1y8yWdxuXMFmMWH6WhaLM6cvsVq07j3CbnH4TTurRdvqD6wWq3b9 YXQQ91gzbw2jR0tzD5vH5b5eJo9bd+o9ds66y+6xcvkXNo9NqzrZPDYvqff4d4zdY8vVdhaP vi2rGD0+b5IL4InisklJzcksSy3St0vgyuia6l6wi6di+cvXjA2Mh7m6GDk4JARMJN5eDehi 5AQyxSQu3FvP1sXIxSEksIJR4uySViaIhInE+0kLoBKzGCWW9P5jB0kICXxhlOj8lgRiswlo Sex/cQOsSERgKqPE51NtLCAOs8ARZompG2+AjRIWCJP4tnYvK4jNIqAq8ffnB7BJvAJuEp8W 9bBBrJOT+LDnEVicEyS+vp0V5FQhAVeJZ5/rQGZKCBzgkLjdfZMZYo6AxLfJh1gg3pGV2HSA GWKMpMTBFTdYJjAKL2BkWMUomlqQXFCclF5krFecmFtcmpeul5yfu4kRGMGn/z3r38F494D1 IUYBDkYlHl6Ha1zhQqyJZcWVuYcYTYE2TGSWEk3OB6aJvJJ4Q2MzIwtTE1NjI3NLMyVx3oVS P4OFBNITS1KzU1MLUovii0pzUosPMTJxcEo1MGYJSJiw8c94kbJAt6nscUzxxKtqmzYq8v8v bPvyq3ebkOzmyjL12MhFPw5PYM6deET/UTOTt9sG31fnr56YqOy+7+AHT6Ovke+/HexbzbJM wEd4q6mk7WMjfXbu/fu6t/L96Htrl9tSPels9efD8iL3jutplwZavXVS2LBn2RbdYH1JjqD0 fiWW4oxEQy3mouJEAHOVc43bAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprGKsWRmVeSWpSXmKPExsVy+t9jQd2TCtzhBpfvqVlc//Kc1WL+kXOs Fv1vFrJanHu1ktFi0v0JLBavXxha9D9+zWxxtukNu8Wmx9dYLS7vmsNm8bn3CKPFjPP7mCzW bbzFbnH7Mq/FyyM/GC2WXr/IZHG7cQWbxYTpa1kszpy+xGrRuvcIu8XhN+2sFm2rP7BarNr1 h9FB3GPNvDWMHi3NPWwel/t6mTxu3an32DnrLrvHyuVf2Dw2repk89i8pN7j3zF2jy1X21k8 +rasYvT4vEkugCeqgdEmIzUxJbVIITUvOT8lMy/dVsk7ON453tTMwFDX0NLCXEkhLzE31VbJ xSdA1y0zB+hrJYWyxJxSoFBAYnGxkr4dpgmhIW66FjCNEbq+IUFwPUYGaCBhDWNG11T3gl08 FctfvmZsYDzM1cXIySEhYCLxftICNghbTOLCvfVANheHkMAsRoklvf/YQRJCAl8YJTq/JYHY bAJaEvtf3AArEhGYyijx+VQbC4jDLHCEWWLqxhtMIFXCAmES39buZQWxWQRUJf7+/AA2iVfA TeLToh6odXISH/Y8AotzgsTXtwPVcwBtc5V49rluAiPvAkaGVYwSqQXJBcVJ6blGeanlesWJ ucWleel6yfm5mxjBaeKZ9A7Gw7vcDzEKcDAq8fC+uMwVLsSaWFZcmXuIUYKDWUmE94Esd7gQ b0piZVVqUX58UWlOavEhRlOguyYyS4km5wNTWF5JvKGxiZmRpZG5oYWRsbmSOO/j/+vChATS E0tSs1NTC1KLYPqYODilGhiXrH8zu7Fh5a3pqmb9i04sdFDdrK6nY32pdcL+if1LrnyQWl2b /nhGNbviBr6Wnxeyzctk59Tc+mf+9TC/xftMl7yokrDO00vMXn2KXL58+Zx/FT1nS1Rk7c8Y yGTUTTS7wH5hm+IMbctDMdcP+s5s3zSj6zPnxTgmJolbRk1Xtuz/+pEr70OMEktxRqKhFnNR cSIAk814kykDAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160410_205833_063030_DA239248 X-CRM114-Status: GOOD ( 10.08 ) X-Spam-Score: -7.9 (-------) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, inki.dae@samsung.com, linux-samsung-soc@vger.kernel.org, linux@arm.linux.org.uk, cw00.choi@samsung.com, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, linux.amoon@gmail.com, linux-pm@vger.kernel.org, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, m.reichl@fivetechno.de, tjakobi@math.uni-bielefeld.de, devicetree@vger.kernel.org, robh+dt@kernel.org, galak@codeaurora.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-3.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RDNS_NONE,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds the DMC (Dynamic Memory Controller) bus frequency node which includes the devfreq-events and regulator properties. The bus frequency support the DVFS (Dynamic Voltage Frequency Scaling) feature with ondemand governor. The devfreq-events (ppmu_dmc0*) can monitor the utilization of DMC bus on runtime and the buck1_reg (VDD_MIF power line) supplies the power to the DMC block. Signed-off-by: Chanwoo Choi Reviewed-by: Krzysztof Kozlowski Acked-by: MyungJoo Ham --- arch/arm/boot/dts/exynos3250-monk.dts | 6 ++++++ arch/arm/boot/dts/exynos3250-rinato.dts | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts index 9e2840b59ae8..1fd7ecb5c415 100644 --- a/arch/arm/boot/dts/exynos3250-monk.dts +++ b/arch/arm/boot/dts/exynos3250-monk.dts @@ -156,6 +156,12 @@ }; }; +&bus_dmc { + devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>; + vdd-supply = <&buck1_reg>; + status = "okay"; +}; + &cpu0 { cpu0-supply = <&buck2_reg>; }; diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts index 1f102f3a1ab1..5175bd7e015f 100644 --- a/arch/arm/boot/dts/exynos3250-rinato.dts +++ b/arch/arm/boot/dts/exynos3250-rinato.dts @@ -147,6 +147,12 @@ }; }; +&bus_dmc { + devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>; + vdd-supply = <&buck1_reg>; + status = "okay"; +}; + &cpu0 { cpu0-supply = <&buck2_reg>; };