From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753667AbbK0AeL (ORCPT ); Thu, 26 Nov 2015 19:34:11 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:49727 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753546AbbK0AeE convert rfc822-to-8bit (ORCPT ); Thu, 26 Nov 2015 19:34:04 -0500 X-AuditID: cbfee68f-f79666d0000076bb-7d-5657a4f9c6fa MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-transfer-encoding: 8BIT Message-id: <5657A4F8.4080003@samsung.com> Date: Fri, 27 Nov 2015 09:34:00 +0900 From: Chanwoo Choi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 To: Anand Moon Cc: MyungJoo Ham , Kyungmin Park , Kukjin Kim , =?UTF-8?B?S3J6eXN6dG9mIEtvesWCb3dza2k=?= , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , Tobias Jakobi , LKML , Linux PM list , Linux Samsung SoC , devicetree Subject: Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver References: <1448545659-32287-1-git-send-email-cw00.choi@samsung.com> <1448545659-32287-2-git-send-email-cw00.choi@samsung.com> In-reply-to: X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrBIsWRmVeSWpSXmKPExsWyRsSkSPfnkvAwgyuvuCzmHznHatH/ZiGr xblXKxktXr8wtOh//JrZ4mzTG3aLy7vmsFl87j3CaDHj/D4mi3Ubb7Fb3L7Ma7H0+kUmi+eb OlktJkxfy2LRuvcIu0Xb6g+sDgIea+atYfRoae5h87jc18vksXPWXXaPlcu/sHlsWtXJ5vHv GLtH35ZVjB6fN8kFcEZx2aSk5mSWpRbp2yVwZSybcoup4C5fxf+tK5gaGN9xdzFyckgImEis mLWYHcIWk7hwbz1bFyMXh5DACkaJx78Os8EUbeo6yQqRWMoo0dw+gREkwSsgKPFj8j2WLkYO DmYBdYkpU3JBwswCIhJHJ7SxQNjaEssWvmaG6H3AKDH/3AlmkHpeAS2JkxOVQWpYBFQl2s+e BRvJBhTe/+IGG0iJqECERPeJSpCwiICaxJWnK8BOYBboZJX4u+0m2G3CAnESxz+/YIeYf41J 4uCtJ8wgCU6BYIlHy/eDdUgIbOGQ2Pt1GSvENgGJb5MPgR0tISArsekAM8STkhIHV9xgmcAo PgvJa7MQXpuF5LVZSF5bwMiyilE0tSC5oDgpvchYrzgxt7g0L10vOT93EyMwQZz+96x/B+Pd A9aHGAU4GJV4eCXSw8OEWBPLiitzDzGaAh00kVlKNDkfmIbySuINjc2MLExNTI2NzC3NlMR5 F0r9DBYSSE8sSc1OTS1ILYovKs1JLT7EyMTBKdXA2JNtxBT6IvONwfaVZQFCRcfMQ3onH5a6 w7GseFfpBP8w66Rl3mZ7OmIEVJ+r8L/bKfb01YyY90Ef7vjfs2RknX/d+u6/n7bCwrtNt50/ e0U8fo/vmuCOnbNczA0NIgJNWE9nSVccl+Kf+1zyyeXGOlsroxMvFMKY8uRyT38MWFX9lXH9 6SYhJZbijERDLeai4kQAYse6TAsDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNKsWRmVeSWpSXmKPExsVy+t9jAd2fS8LDDDo6WCzmHznHatH/ZiGr xblXKxktXr8wtOh//JrZ4mzTG3aLy7vmsFl87j3CaDHj/D4mi3Ubb7Fb3L7Ma7H0+kUmi+eb OlktJkxfy2LRuvcIu0Xb6g+sDgIea+atYfRoae5h87jc18vksXPWXXaPlcu/sHlsWtXJ5vHv GLtH35ZVjB6fN8kFcEY1MNpkpCampBYppOYl56dk5qXbKnkHxzvHm5oZGOoaWlqYKynkJeam 2iq5+AToumXmAH2hpFCWmFMKFApILC5W0rfDNCE0xE3XAqYxQtc3JAiux8gADSSsYcz4f2MR W8FxvoppvcuZGhhvcHcxcnJICJhIbOo6yQphi0lcuLeerYuRi0NIYCmjRHP7BEaQBK+AoMSP yfdYuhg5OJgF5CWOXMqGMNUlpkzJhSh/wCgx/9wJZpA4r4CWxMmJyiCdLAKqEu1nz4JNYQMK 739xgw2kRFQgQqL7RCVIWERATeLK0xWsIGOYBTpZJf5uu8kGkhAWiJM4/vkFO8T8a0wSB289 YQZJcAoESzxavp91AqPALCTXzUK4bhbCdQsYmVcxSqQWJBcUJ6XnGuallusVJ+YWl+al6yXn 525iBCeUZ1I7GA/ucj/EKMDBqMTDeyAlPEyINbGsuDL3EKMEB7OSCG/hdKAQb0piZVVqUX58 UWlOavEhRlOg/yYyS4km5wOTXV5JvKGxiZmRpZG5oYWRsbmSOO+F/X5hQgLpiSWp2ampBalF MH1MHJxSDYyBZ5SX+5V8X/jwDYO48pL2ibLTJt5bER+ZFnG5VWHyZ5MH6xzOJsz0D1AuV5Od cT7Sy2L/6Qntdtm95aH2+lGpERe4JtoLqCxR08nkehyaELU2flOaR9TyG7N5fdme3VjewvjQ 2u3Y4pkPXU3+fphmzmflJXv1WW5+UiJ/XWhywOyrfhsr5yixFGckGmoxFxUnAgBOZoXRPgMA AA== 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 Hi Anand, On 2015년 11월 27일 02:17, Anand Moon wrote: > Hi Chanwoo, > > On 26 November 2015 at 21:42, Chanwoo Choi wrote: >> On Thu, Nov 26, 2015 at 11:00 PM, MyungJoo Ham wrote: >>> On Thu, Nov 26, 2015 at 10:47 PM, Chanwoo Choi wrote: >>>> This patch adds the generic exynos bus frequency driver for AMBA AXI bus >>>> of sub-blocks in exynos SoC with DEVFREQ framework. The Samsung Exynos SoC >>>> have the common architecture for bus between DRAM and sub-blocks in SoC. >>>> This driver can support the generic bus frequency driver for Exynos SoCs. >>>> >>>> In devicetree, Each bus block has a bus clock, regulator, operation-point >>>> and devfreq-event devices which measure the utilization of each bus block. >>>> >>>> Signed-off-by: Chanwoo Choi >>>> --- >>>> drivers/devfreq/Kconfig | 15 ++ >>>> drivers/devfreq/Makefile | 1 + >>>> drivers/devfreq/exynos/Makefile | 1 + >>>> drivers/devfreq/exynos/exynos-bus.c | 443 ++++++++++++++++++++++++++++++++++++ >>>> 4 files changed, 460 insertions(+) >>>> create mode 100644 drivers/devfreq/exynos/exynos-bus.c >>>> >>> >>> Are we finally getting a common Exynos bus driver with full DT support? >>> (can this replace both Exynos4/5 drivers and support Exynos7 series?) >> >> Yes. >> This patch-set would support all Exynos SoCs for bus frequency driver. >> To make sure the support for Exynos7 series, I need to check the TRM >> document of Exynos7. I think it is possible for support Exynos7. >> >> I'm going to test this driver on various Exynos-based board. >> >> Regards, >> Chanwoo Choi > > Please do consider Exynos 542x series as well. Sure. I'll to test it on Exynos5422-based Odroid-XU3. Regards, Chanwoo Choi