From: Chanwoo Choi <cw00.choi@samsung.com>
To: myungjoo.ham@samsung.com, k.kozlowski@samsung.com, kgene@kernel.org
Cc: kyungmin.park@samsung.com, robh+dt@kernel.org,
pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
linux@arm.linux.org.uk, tjakobi@math.uni-bielefeld.de,
linux.amoon@gmail.com, cw00.choi@samsung.com,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH v4 18/20] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato
Date: Mon, 14 Dec 2015 15:38:22 +0900 [thread overview]
Message-ID: <1450075104-13705-19-git-send-email-cw00.choi@samsung.com> (raw)
In-Reply-To: <1450075104-13705-1-git-send-email-cw00.choi@samsung.com>
This patch adds the bus device-tree nodes of INT (internal) block
to enable the bus frequency scaling. The following sub-blocks share
the VDD_INT power source:
- LEFTBUS (parent device)
- RIGHTBUS
- PERIL
- LCD0
- FSYS
- MCUISP / ISP
- MFC
The LEFTBUS is parent device with devfreq ondemand governor
and the rest of devices depend on the LEFTBUS device.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
arch/arm/boot/dts/exynos3250-rinato.dts | 41 +++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index 2a1c22598fdc..c29d5533ec1f 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -154,6 +154,47 @@
status = "okay";
};
+&bus_leftbus {
+ devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+ vdd-supply = <&buck3_reg>;
+ status = "okay";
+};
+
+&bus_rightbus {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_lcd0 {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_fsys {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_mcuisp {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_isp {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_peril {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
+&bus_mfc {
+ devfreq = <&bus_leftbus>;
+ status = "okay";
+};
+
&cpu0 {
cpu0-supply = <&buck2_reg>;
};
--
1.9.1
next prev parent reply other threads:[~2015-12-14 6:39 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-14 6:38 [PATCH v4 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 01/20] PM / devfreq: exynos: Add generic exynos bus frequency driver Chanwoo Choi
2015-12-15 3:41 ` Krzysztof Kozlowski
2015-12-18 0:34 ` Chanwoo Choi
2015-12-18 0:43 ` Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 02/20] PM / devfreq: exynos: Add documentation for " Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 03/20] ARM: dts: Add DMC bus node for Exynos3250 Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 04/20] ARM: dts: Add DMC bus frequency for exynos3250-rinato/monk Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 05/20] PM / devfreq: Add new passive governor Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 06/20] PM / devfreq: Add devfreq_get_devfreq_by_phandle() Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 07/20] PM / devfreq: Show the related information according to governor type Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 08/20] PM / devfreq: exynos: Add support of bus frequency of sub-blocks using passive governor Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 09/20] PM / devfreq: exynos: Update documentation for bus devices " Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 10/20] PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 11/20] PM / devfreq: exynos: Remove unused exynos4/5 busfreq driver Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 12/20] MAINTAINERS: Add samsung bus frequency driver entry Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 13/20] ARM: dts: Add bus nodes using VDD_INT for Exynos3250 Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 14/20] ARM: dts: Add bus nodes using VDD_MIF for Exynos4x12 Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 15/20] ARM: dts: Add bus nodes using VDD_INT " Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 16/20] ARM: dts: Add bus nodes using VDD_MIF for Exynos4210 Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 17/20] ARM: dts: Add exynos4412-ppmu-common dtsi to delete duplicate PPMU nodes Chanwoo Choi
2015-12-14 6:38 ` Chanwoo Choi [this message]
2015-12-14 6:38 ` [PATCH v4 19/20] ARM: dts: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3 Chanwoo Choi
2015-12-14 6:38 ` [PATCH v4 20/20] ARM: dts: Add support of bus frequency for exynos4412-trats/odroidu3 Chanwoo Choi
2015-12-15 0:34 ` Krzysztof Kozlowski
2016-01-19 9:13 ` [PATCH v4 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor Tobias Jakobi
2016-01-20 1:09 ` Chanwoo Choi
2016-01-22 11:01 ` Tobias Jakobi
2016-02-19 15:05 ` Tobias Jakobi
2016-02-22 1:00 ` Chanwoo Choi
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