From patchwork Thu Jan 16 14:42:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= X-Patchwork-Id: 11337183 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F1C00184C for ; Thu, 16 Jan 2020 14:42:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CFD8220684 for ; Thu, 16 Jan 2020 14:42:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="kykSK39w" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726785AbgAPOmn (ORCPT ); Thu, 16 Jan 2020 09:42:43 -0500 Received: from mailout1.w1.samsung.com ([210.118.77.11]:34829 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726574AbgAPOmn (ORCPT ); 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Thu, 16 Jan 2020 14:42:41 +0000 (GMT) From: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , georgi.djakov@linaro.org, cw00.choi@samsung.com, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, krzk@kernel.org Subject: [PATCH v4 1/3] interconnect: Export of_icc_get_from_provider() Date: Thu, 16 Jan 2020 15:42:00 +0100 Message-Id: <20200116144202.12116-2-a.swigon@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200116144202.12116-1-a.swigon@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrMKsWRmVeSWpSXmKPExsWy7djPc7qJZQpxBmd3WFvcn9fKaLFxxnpW i+tfnrNaTN+7ic3i/PkN7BaXd81hs/jce4TRYsb5fUwWa4/cZXfg9Ni0qpPN4861PWwefVtW MXp83iQXwBLFZZOSmpNZllqkb5fAlXFr0Rf2gq0CFauWHGZvYGzi62Lk5JAQMJHon9vO3MXI xSEksIJRovfmARYI5wujxPYNF6Ccz4wSL3vvssO0PNr4DiqxnFHiw/51jHAtd09NZAapYhNw lJg09QFYh4hAvMTHbf/AOpgFdjJKHPn7hwkkISzgLvHsDMRYFgFVif0fJrOA2LwClhI/T11k glgnL7F6wwGgoRwcnAJWEp8fq0KUCEqcnPkErJwZqKR562ywJyQE1rFLnNvTwwbR6yLx8uVV KFtY4tXxLVAvyEicntzDAmEXSzzdeZ8VormBUWLTsiPMEAlriTvnfrGBLGYW0JRYv0sfIuwo 8fTETbCwhACfxI23ghA38ElM2jadGSLMK9HRJgRhKknsmgkNagmJptXXoGZ7SMz/vZd9AqPi LCTPzELyzCyEtQsYmVcxiqeWFuempxYb5aWW6xUn5haX5qXrJefnbmIEJp3T/45/2cG460/S IUYBDkYlHt4ZQQpxQqyJZcWVuYcYJTiYlUR4T86QjRPiTUmsrEotyo8vKs1JLT7EKM3BoiTO a7zoZayQQHpiSWp2ampBahFMlomDU6qBcfpKMcaT93ql0kTPt/+54F3QY5LpfOexg9HhREYL 6w6HM99d1gpfMeP/tpxj9+sjlwu6cr7X5C3pFQwuyHjawv5x0+Rvoou//g5xMcjWFp1lb9DC kmewd9O+B9LslyZMjru/6OSU1NiZfPcDpB9cEsoNvvy+6bBw4/ud0/qYI+eequD/VHYlQYml OCPRUIu5qDgRANcwnb02AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrBIsWRmVeSWpSXmKPExsVy+t/xe7qJZQpxBmduqlrcn9fKaLFxxnpW i+tfnrNaTN+7ic3i/PkN7BaXd81hs/jce4TRYsb5fUwWa4/cZXfg9Ni0qpPN4861PWwefVtW MXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwea2VkqqRvZ5OSmpNZllqk b5egl3Fr0Rf2gq0CFauWHGZvYGzi62Lk5JAQMJF4tPEdSxcjF4eQwFJGiYVHzrFDJCQkPq6/ wQphC0v8udbFBlH0iVHix6/HTCAJNgFHiUlTH4A1iAgkStx69JgZpIhZYD+jxMs7bWwgCWEB d4lnZ+6CFbEIqErs/zCZBcTmFbCU+HnqIhPEBnmJ1RsOADVzcHAKWEl8fqwKEhYCKrm9sZsV olxQ4uTMJywgJcwC6hLr5wmBhJmBOpu3zmaewCg4C0nVLISqWUiqFjAyr2IUSS0tzk3PLTbS K07MLS7NS9dLzs/dxAiMpW3Hfm7Zwdj1LvgQowAHoxIP74wghTgh1sSy4srcQ4wSHMxKIrwn Z8jGCfGmJFZWpRblxxeV5qQWH2I0BfpsIrOUaHI+MM7zSuINTQ3NLSwNzY3Njc0slMR5OwQO xggJpCeWpGanphakFsH0MXFwSjUwutcavy241yqYpr/2WaTcpQYd9rwLwjd/ZW5337bDcd77 4yd3b0u/dXKqwQL9OXPOLha7ImvBwixsmnrANVV+ab2J6+v6gIbcgyqRCzsPzO54ZVv++mRM CMvHOn6X8LqC/tRZD1ek90k+eNxhtEMg5MqxwyyS649YJCWsvuLIUn74U7SupZqyEktxRqKh FnNRcSIAv2xK1bsCAAA= X-CMS-MailID: 20200116144241eucas1p18dcf099873015e955d71d90712bbe9e0 X-Msg-Generator: CA X-RootMTR: 20200116144241eucas1p18dcf099873015e955d71d90712bbe9e0 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200116144241eucas1p18dcf099873015e955d71d90712bbe9e0 References: <20200116144202.12116-1-a.swigon@samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch makes the above function public (for use in exynos-bus devfreq driver). Signed-off-by: Artur Świgoń Reviewed-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi --- drivers/interconnect/core.c | 3 ++- include/linux/interconnect-provider.h | 6 ++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index f277e467156f..0be1764d3528 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -330,7 +330,7 @@ EXPORT_SYMBOL_GPL(of_icc_xlate_onecell); * Returns a valid pointer to struct icc_node on success or ERR_PTR() * on failure. */ -static struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec) +struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec) { struct icc_node *node = ERR_PTR(-EPROBE_DEFER); struct icc_provider *provider; @@ -349,6 +349,7 @@ static struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec) return node; } +EXPORT_SYMBOL_GPL(of_icc_get_from_provider); /** * of_icc_get() - get a path handle from a DT node based on name diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h index 0c494534b4d3..cc965b8fab53 100644 --- a/include/linux/interconnect-provider.h +++ b/include/linux/interconnect-provider.h @@ -103,6 +103,7 @@ void icc_node_del(struct icc_node *node); int icc_nodes_remove(struct icc_provider *provider); int icc_provider_add(struct icc_provider *provider); int icc_provider_del(struct icc_provider *provider); +struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec); #else @@ -154,6 +155,11 @@ static inline int icc_provider_del(struct icc_provider *provider) return -ENOTSUPP; } +struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec) +{ + return ERR_PTR(-ENOTSUPP); +} + #endif /* CONFIG_INTERCONNECT */ #endif /* __LINUX_INTERCONNECT_PROVIDER_H */ From patchwork Thu Jan 16 14:42:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= X-Patchwork-Id: 11337181 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B2F3C1820 for ; Thu, 16 Jan 2020 14:42:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 916C520684 for ; 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Thu, 16 Jan 2020 14:42:42 +0000 (GMT) X-AuditID: cbfec7f4-0cbff7000001ed07-43-5e20766272a8 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 95.64.08375.266702E5; Thu, 16 Jan 2020 14:42:42 +0000 (GMT) Received: from AMDC3555.digital.local (unknown [106.120.51.67]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20200116144241eusmtip27154e268eeeee0ec6f2693221b6a5bc9~qZRVWCd1a2133821338eusmtip2j; Thu, 16 Jan 2020 14:42:41 +0000 (GMT) From: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , georgi.djakov@linaro.org, cw00.choi@samsung.com, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, krzk@kernel.org Subject: [PATCH v4 2/3] interconnect: Relax requirement in of_icc_get_from_provider() Date: Thu, 16 Jan 2020 15:42:01 +0100 Message-Id: <20200116144202.12116-3-a.swigon@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200116144202.12116-1-a.swigon@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrMKsWRmVeSWpSXmKPExsWy7djP87pJZQpxBrNnqVrcn9fKaLFxxnpW i+tfnrNaTN+7ic3i/PkN7BaXd81hs/jce4TRYsb5fUwWa4/cZXfg9Ni0qpPN4861PWwefVtW MXp83iQXwBLFZZOSmpNZllqkb5fAlbH783Tmgk8cFe2fFjA1MO5j72Lk5JAQMJF4+GEGWxcj F4eQwApGiW9Pe5khnC+MEgfudDNCOJ8ZJe4sO84C07L78XKoluWMEkf//WCCa1nx6gDYYDYB R4lJUx+A2SIC8RIft/1jASliFtjJKHHk7x8mkISwQLhE+7HVYDaLgKrEzZk72UBsXgFLidbp D6AulJdYveEA0FEcHJwCVhKfH6tClAhKnJz5BOwiZqCS5q2zwe6WEFjGLjHx/hVGiF4Xic2/ /0KdLSzx6vgWqJkyEqcn90DFiyWe7rzPCtHcwCixadkRZoiEtcSdc7/YQBYzC2hKrN+lDxF2 lDh05DILSFhCgE/ixltBiBv4JCZtm84MEeaV6GgTgjCVJHbN5INolJBoWn0NaraHxN9Zj9kn MCrOQvLMLCTPzEJYu4CReRWjeGppcW56arFRXmq5XnFibnFpXrpecn7uJkZg0jn97/iXHYy7 /iQdYhTgYFTi4Z0RpBAnxJpYVlyZe4hRgoNZSYT35AzZOCHelMTKqtSi/Pii0pzU4kOM0hws SuK8xotexgoJpCeWpGanphakFsFkmTg4pRoYlxyedSO8SuiE1o9FMV/Ee78yG9dOt9P/z+Ag 8jHt51Pnls5TX3nr74h92HTPlHFhBl9jw8IpDuIn0g6aNvR81TH9lGXp8OzxHf/tHXahM75V lZ1/9bMwcqKtetK6PUJyvucMv0ROXrpPjifJc0FLwLmThq9Plxjf+77/5DGVlSGuc2oF03rP KLEUZyQaajEXFScCAIVa5SY2AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrBIsWRmVeSWpSXmKPExsVy+t/xe7pJZQpxBp1vuC3uz2tltNg4Yz2r xfUvz1ktpu/dxGZx/vwGdovLu+awWXzuPcJoMeP8PiaLtUfusjtwemxa1cnmcefaHjaPvi2r GD0+b5ILYInSsynKLy1JVcjILy6xVYo2tDDSM7S00DMysdQzNDaPtTIyVdK3s0lJzcksSy3S t0vQy9j9eTpzwSeOivZPC5gaGPexdzFyckgImEjsfrycrYuRi0NIYCmjxMs376ESEhIf199g hbCFJf5c64Iq+sQocW/PGkaQBJuAo8SkqQ/AGkQEEiVuPXrMDFLELLAfaNKdNjaQhLBAqMTi x1vAGlgEVCVuztwJFucVsJRonf4Aapu8xOoNB4CaOTg4BawkPj9WBQkLAZXc3tjNClEuKHFy 5hMWkBJmAXWJ9fOEQMLMQJ3NW2czT2AUnIWkahZC1SwkVQsYmVcxiqSWFuem5xYb6hUn5haX 5qXrJefnbmIExtK2Yz8372C8tDH4EKMAB6MSD++MIIU4IdbEsuLK3EOMEhzMSiK8J2fIxgnx piRWVqUW5ccXleakFh9iNAX6bCKzlGhyPjDO80riDU0NzS0sDc2NzY3NLJTEeTsEDsYICaQn lqRmp6YWpBbB9DFxcEo1MEoW3vqtH7BeNaCGIY3z2HVGt7OWvw+lPmmT4jIwfbrBcM/LDQHb RWL+1T+1s3o4eUrhfcNfgbfV5T+ynd2tYO+mq3ZSnvlyzRIRFX/TdfZ5+4pX3hZpUxXlYteS CdYpnTBF7av0gy1LzU9smL+G89CxcmENpb1XvFvf9EzzeBNc7Pxi6hHZJiWW4oxEQy3mouJE AMh6sPi7AgAA X-CMS-MailID: 20200116144242eucas1p2bf8b4df91355974c8c96778f4ec117f7 X-Msg-Generator: CA X-RootMTR: 20200116144242eucas1p2bf8b4df91355974c8c96778f4ec117f7 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200116144242eucas1p2bf8b4df91355974c8c96778f4ec117f7 References: <20200116144202.12116-1-a.swigon@samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch relaxes the condition in of_icc_get_from_provider() so that it is no longer required to set '#interconnect-cells' to <1> in the DT, and therefore it is not required to supply dummy node IDs in the 'interconnects' property when node IDs are dynamically generated rather than hardcoded (statically allocated). In case of the devfreq driver for exynos-bus, node IDs are dynamically allocated and '#interconnect-cells' is always zero. Signed-off-by: Artur Świgoń Acked-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi --- drivers/interconnect/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 0be1764d3528..5ea270af5ff4 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -335,7 +335,7 @@ struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec) struct icc_node *node = ERR_PTR(-EPROBE_DEFER); struct icc_provider *provider; - if (!spec || spec->args_count != 1) + if (!spec) return ERR_PTR(-EINVAL); mutex_lock(&icc_lock); From patchwork Thu Jan 16 14:42:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= X-Patchwork-Id: 11337175 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9B23C1820 for ; 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Thu, 16 Jan 2020 14:42:42 +0000 (GMT) X-AuditID: cbfec7f4-0e5ff7000001ed07-46-5e20766382e1 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 8A.E4.07950.266702E5; Thu, 16 Jan 2020 14:42:42 +0000 (GMT) Received: from AMDC3555.digital.local (unknown [106.120.51.67]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20200116144242eusmtip2bc90f6c9b952b9436eed055b20fd4699~qZRV4a8Ie2554125541eusmtip2e; Thu, 16 Jan 2020 14:42:42 +0000 (GMT) From: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , georgi.djakov@linaro.org, cw00.choi@samsung.com, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, krzk@kernel.org Subject: [PATCH v4 3/3] interconnect: Allow inter-provider pairs to be configured Date: Thu, 16 Jan 2020 15:42:02 +0100 Message-Id: <20200116144202.12116-4-a.swigon@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200116144202.12116-1-a.swigon@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprLKsWRmVeSWpSXmKPExsWy7djP87rJZQpxBh/ui1jcn9fKaLFxxnpW i+tfnrNaTN+7ic3i/PkN7BaXd81hs/jce4TRYsb5fUwWa4/cZXfg9Ni0qpPN4861PWwefVtW MXp83iQXwBLFZZOSmpNZllqkb5fAlTHl4W7mgkMiFQ+mLWZqYDwp0MXIwSEhYCKxbKpEFyMn h5DACkaJ5jv5XYxcQPYXRom9e2YyQTifGSUmLuxmhmmYe8QcIr6cUWLX6rNMcB0X729lBBnF JuAoMWnqA3YQW0QgXuLjtn8sIEXMAjsZJY78/cMEMklYIFii9YIYSA2LgKrEnsVHwHp5BSwl dk1vAuuVEJCXWL3hANhiTgEric+PVSFKBCVOznzCAmIzA5U0b53NDDJeQmAdu8S3hmagBDuQ 4yKxPgJiirDEq+NboCbKSJye3MMCYRdLPN15nxWitYFRYtOyI8wQCWuJO+d+sYGsZRbQlFi/ Sx8i7Cixb+t6Fkgw8EnceCsIcQGfxKRt06GhwyvR0SYEYSpJ7JrJB9EoIdG0+hrUbA+J9wc7 2SYwKs5C8sosJK/MQli7gJF5FaN4amlxbnpqsVFearlecWJucWleul5yfu4mRmCiOf3v+Jcd jLv+JB1iFOBgVOLhnRGkECfEmlhWXJl7iFGCg1lJhPfkDNk4Id6UxMqq1KL8+KLSnNTiQ4zS HCxK4rzGi17GCgmkJ5akZqemFqQWwWSZODilGhhlHeNFLKotv9T9XMIYcSerPsp8vrCc172n 6z799lR+0dvPpuzxb3Py4xWOs6SEdsXddP9016vCXMLl49ycA+enrQt8Gv1xWvyFcGNT7d9M 3u8/9JvuzDjcO6eyQUnLY88bx4lb5Y9su8t75em1Uy++zkr2fn2a++v9B4eL5l/J8alW+X8x ZrGlEktxRqKhFnNRcSIA+8imlzADAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOIsWRmVeSWpSXmKPExsVy+t/xe7pJZQpxBt9/G1vcn9fKaLFxxnpW i+tfnrNaTN+7ic3i/PkN7BaXd81hs/jce4TRYsb5fUwWa4/cZXfg9Ni0qpPN4861PWwefVtW MXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwea2VkqqRvZ5OSmpNZllqk b5eglzHl4W7mgkMiFQ+mLWZqYDwp0MXIwSEhYCIx94h5FyMXh5DAUkaJySv3s3UxcgLFJSQ+ rr/BCmELS/y51sUGUfSJUeL9/vNgCTYBR4lJUx+wg9giAokStx49ZgYpYhbYzyjx8k4b2CRh gUCJzTsPgtksAqoSexYfYQSxeQUsJXZNb2KH2CAvsXrDAWaQizgFrCQ+P1YFCQsBldze2M0K US4ocXLmExaQEmYBdYn184RAwsxAnc1bZzNPYBSchaRqFkLVLCRVCxiZVzGKpJYW56bnFhvp FSfmFpfmpesl5+duYgRG0rZjP7fsYOx6F3yIUYCDUYmHd0aQQpwQa2JZcWXuIUYJDmYlEd6T M2TjhHhTEiurUovy44tKc1KLDzGaAn02kVlKNDkfGOV5JfGGpobmFpaG5sbmxmYWSuK8HQIH Y4QE0hNLUrNTUwtSi2D6mDg4pRoYI3d2/E7Ya91760jclcqwSfxrvNYVpYoKZEXmR98tLU/U /nTSVneBjdyMxbnMOVqx1ybdsPUuiW+NvNY047e8qK935aQH8x+bFB+R51Z+/n3vUZek6QZt nwR2PzyaoHX+ZET+/TOhGnY7bq7cuzeq6ATPPK3JK6oinmzKvcTR3r6zcs1eJ6UVSizFGYmG WsxFxYkALfUZGboCAAA= X-CMS-MailID: 20200116144242eucas1p1b66d8ca0d111f140c48b80c5064ca4ff X-Msg-Generator: CA X-RootMTR: 20200116144242eucas1p1b66d8ca0d111f140c48b80c5064ca4ff X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200116144242eucas1p1b66d8ca0d111f140c48b80c5064ca4ff References: <20200116144202.12116-1-a.swigon@samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch adds support for a new boolean 'inter_set' field in struct icc_provider. Setting it to 'true' enables calling '->set' for inter-provider node pairs. All existing users of the interconnect framework allocate this structure with kzalloc, and are therefore unaffected by this change. This makes it easier for hierarchies like exynos-bus, where every bus is probed separately and registers a separate interconnect provider, to model constraints between buses (or between buses and DMC, handled by two separate drivers in case of Exynos5422). Signed-off-by: Artur Świgoń --- drivers/interconnect/core.c | 11 +++++------ include/linux/interconnect-provider.h | 2 ++ 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 5ea270af5ff4..caa9e35f06a3 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -259,23 +259,22 @@ static int aggregate_requests(struct icc_node *node) static int apply_constraints(struct icc_path *path) { struct icc_node *next, *prev = NULL; + struct icc_provider *p; int ret = -EINVAL; int i; for (i = 0; i < path->num_nodes; i++) { next = path->reqs[i].node; + p = next->provider; - /* - * Both endpoints should be valid master-slave pairs of the - * same interconnect provider that will be configured. - */ - if (!prev || next->provider != prev->provider) { + /* both endpoints should be valid master-slave pairs */ + if (!prev || (p != prev->provider && !p->inter_set)) { prev = next; continue; } /* set the constraints */ - ret = next->provider->set(prev, next); + ret = p->set(prev, next); if (ret) goto out; diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h index cc965b8fab53..b6ae0ee686c5 100644 --- a/include/linux/interconnect-provider.h +++ b/include/linux/interconnect-provider.h @@ -41,6 +41,7 @@ struct icc_node *of_icc_xlate_onecell(struct of_phandle_args *spec, * @xlate: provider-specific callback for mapping nodes from phandle arguments * @dev: the device this interconnect provider belongs to * @users: count of active users + * @inter_set: whether inter-provider pairs will be configured with @set * @data: pointer to private data */ struct icc_provider { @@ -53,6 +54,7 @@ struct icc_provider { struct icc_node* (*xlate)(struct of_phandle_args *spec, void *data); struct device *dev; int users; + bool inter_set; void *data; };