From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753442AbbLIEJp (ORCPT ); Tue, 8 Dec 2015 23:09:45 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:42691 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751585AbbLIEIW (ORCPT ); Tue, 8 Dec 2015 23:08:22 -0500 X-AuditID: cbfee690-f79646d000001316-cd-5667a93036f5 From: Chanwoo Choi 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 v2 04/19] ARM: dts: Add DMC bus frequency for exynos3250-rinato/monk Date: Wed, 09 Dec 2015 13:07:56 +0900 Message-id: <1449634091-1842-5-git-send-email-cw00.choi@samsung.com> X-Mailer: git-send-email 1.8.0 In-reply-to: <1449634091-1842-1-git-send-email-cw00.choi@samsung.com> References: <1449634091-1842-1-git-send-email-cw00.choi@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprDIsWRmVeSWpSXmKPExsWyRsSkWNdgZXqYwdONHBbXvzxntZh/5Byr Rf+bhawW516tZLR4/cLQov/xa2aLs01v2C0u75rDZvG59wijxYzz+5gs1m28xW5x+zKvxdLr F5ksbjeuYLOYMH0ti0Xr3iPsFm2rP7A6CHqsmbeG0aOluYfN43JfL5PHzll32T1WLv/C5rFp VSebx79j7B59W1YxenzeJBfAGcVlk5Kak1mWWqRvl8CVcbn1F2vBVe6Kxk8hDYwvOLsYOTkk BEwkVt19ygphi0lcuLeeDcQWEljBKHHqtwpMzYLDd5i6GLmA4rMYJY5+PssG4XxhlPh8rRWs g01AS2L/ixtgtoiAu8TXe7vBipgFvjBJtE7+zgySEBYIk1hx6hlLFyMHB4uAqsSpByYgJq+A i8S606EQy+QkPux5xA5icwq4SlzZ/o4R4iAXiWNPm8COkBD4yy6x8UYjE0iCRUBA4tvkQ2Aj JQRkJTYdYIaYIylxcMUNlgmMwgsYGVYxiqYWJBcUJ6UXmegVJ+YWl+al6yXn525iBEba6X/P JuxgvHfA+hCjAAejEg/vBZf0MCHWxLLiytxDjKZAGyYyS4km5wPjOa8k3tDYzMjC1MTU2Mjc 0kxJnPe11M9gIYH0xJLU7NTUgtSi+KLSnNTiQ4xMHJxSDYwpb1ys30qeYle13mZxeJnUOiHG W59vC2/7GSR3oObiab213rNUNv6ViGddJZWi3H7bKqD7HNvv9MBLPf1iAr6V6/7VXOur3KEW I3WQ56SxZqW296UJ7w7YiP5/aT3l+wIJlVUHAqYybmMKrHnmulD9bzrvldA1DjZdgWdnFBcm Cm1RkV7u/0mJpTgj0VCLuag4EQA3mES5rwIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrFIsWRmVeSWpSXmKPExsVy+t9jQV2DlelhBi1XmSyuf3nOajH/yDlW i/43C1ktzr1ayWjx+oWhRf/j18wWZ5vesFtc3jWHzeJz7xFGixnn9zFZrNt4i93i9mVei6XX LzJZ3G5cwWYxYfpaFovWvUfYLdpWf2B1EPRYM28No0dLcw+bx+W+XiaPnbPusnusXP6FzWPT qk42j3/H2D36tqxi9Pi8SS6AM6qB0SYjNTEltUghNS85PyUzL91WyTs43jne1MzAUNfQ0sJc SSEvMTfVVsnFJ0DXLTMH6BUlhbLEnFKgUEBicbGSvh2mCaEhbroWMI0Rur4hQXA9RgZoIGEN Y8bl1l+sBVe5Kxo/hTQwvuDsYuTkkBAwkVhw+A4ThC0mceHeerYuRi4OIYFZjBJHP5+Fcr4w Sny+1soGUsUmoCWx/8UNMFtEwF3i673dYEXMAl+YJFonf2cGSQgLhEmsOPWMpYuRg4NFQFXi 1AMTEJNXwEVi3elQiGVyEh/2PGIHsTkFXCWubH/HCGILAZUce9rENIGRdwEjwypGidSC5ILi pPRcw7zUcr3ixNzi0rx0veT83E2M4Hh+JrWD8eAu90OMAhyMSjy8F1zSw4RYE8uKK3MPMUpw MCuJ8GrVAoV4UxIrq1KL8uOLSnNSiw8xmgKdNZFZSjQ5H5hq8kriDY1NzIwsjcwNLYyMzZXE eWsvRYYJCaQnlqRmp6YWpBbB9DFxcEo1MK58X17lNGGlgP+kn/UFH6Y6dFV1PDsxaal4jf9y jllFK7f4/VggwhheYO/546xrYnJxGvtGX20/tXVPkpRXL/u033nh9Un7dpSsn1m/9Y+pvK3q rLM3jevdjb19H3PH39rXza4V+kCo8UVRRb6Ccuz5nw/WMwk/kkr5vdvRyGIpw1Qr5jQvYSWW 4oxEQy3mouJEAPq8Ewr9AgAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 443a35085846..d982586a6533 100644 --- a/arch/arm/boot/dts/exynos3250-monk.dts +++ b/arch/arm/boot/dts/exynos3250-monk.dts @@ -498,6 +498,12 @@ }; }; +&bus_dmc { + devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>; + vdd-supply = <&buck1_reg>; + status = "okay"; +}; + &xusbxti { clock-frequency = <24000000>; }; diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts index 3e64d5dcdd60..61477943015b 100644 --- a/arch/arm/boot/dts/exynos3250-rinato.dts +++ b/arch/arm/boot/dts/exynos3250-rinato.dts @@ -675,6 +675,12 @@ }; }; +&bus_dmc { + devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>; + vdd-supply = <&buck1_reg>; + status = "okay"; +}; + &xusbxti { clock-frequency = <24000000>; }; -- 1.9.1