From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EC1DC433F5 for ; Fri, 8 Apr 2022 05:23:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234738AbiDHFZc (ORCPT ); Fri, 8 Apr 2022 01:25:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234701AbiDHFZS (ORCPT ); Fri, 8 Apr 2022 01:25:18 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1586122201; Thu, 7 Apr 2022 22:23:13 -0700 (PDT) X-UUID: 9d04cdf6699e4e189e4cbf124821d550-20220408 X-UUID: 9d04cdf6699e4e189e4cbf124821d550-20220408 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1811526773; Fri, 08 Apr 2022 13:23:05 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 Apr 2022 13:23:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 8 Apr 2022 13:23:05 +0800 From: Johnson Wang To: , , , CC: , , , , , , , , Johnson Wang Subject: [PATCH v2 0/2] Introduce MediaTek CCI devfreq driver Date: Fri, 8 Apr 2022 13:21:48 +0800 Message-ID: <20220408052150.22536-1-johnson.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Cache Coherent Interconnect (CCI) is the management of cache coherency by hardware. CCI DEVFREQ is DVFS driver for power saving by scaling clock frequency and supply voltage of CCI. CCI uses the same input clock source and power rail as LITTLE CPUs on Mediatek SoCs. This series depends on: Chanwoo's repo: kernel/git/chanwoo/linux.git branch: devfreq-testing [1]: PM / devfreq: Export devfreq_get_freq_range symbol within devfreq [2]: PM / devfreq: Add cpu based scaling support to passive governor [3]: PM / devfreq: passive: Reduce duplicate code when passive_devfreq case [4]: PM / devfreq: passive: Update frequency when start governor Changes in v2: - Take MT8183 as example in binding document. - Use dev_err() instead of pr_err(). - Use 'goto' statement to handle error case. - Clean up driver code. Johnson Wang (2): dt-bindings: devfreq: mediatek: Add mtk cci devfreq dt-bindings PM / devfreq: mediatek: Introduce MediaTek CCI devfreq driver .../devicetree/bindings/devfreq/mtk-cci.yaml | 72 +++ drivers/devfreq/Kconfig | 10 + drivers/devfreq/Makefile | 1 + drivers/devfreq/mtk-cci-devfreq.c | 479 ++++++++++++++++++ 4 files changed, 562 insertions(+) create mode 100644 Documentation/devicetree/bindings/devfreq/mtk-cci.yaml create mode 100644 drivers/devfreq/mtk-cci-devfreq.c -- 2.18.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 89745C433F5 for ; Fri, 8 Apr 2022 05:32:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=UxQeOCsZQsoiEx11BG42pzEM0szJwcYaWNWFpszJ3rU=; b=wEOvlB6o4L89Gl pS2qOgpUmLUe9YL4s1r4AM32mvFoYpredU56cIAyMa+U2pYt6J96HlNIvf5+7jYdCxplmBWeYGSx/ t+mJuoLAI+qUy14pyr1vSMgm00mn81IypmrLsV1Sz00Rh4yKSTGK4XysD+fbINyReCP4SprzyBQ1R gyfARovlGoMzSeb3R3MBRzYd56Y5Z0BS0cmvRbfj502tJPq+tU0/8AUr0QN9+r3igo+olFypoJbfu z7Wiina1g5aqqKCmNT15A/8XfdnVuU7cqQhRaQw/38sOtZG3J3dSOrI6SwzNNd23pSALKeM8vIz1m yz4Iffb9Cdqa8MrD80xQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nchEH-00F9Pp-T5; Fri, 08 Apr 2022 05:32:17 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nchEF-00F9P9-Cv; Fri, 08 Apr 2022 05:32:16 +0000 X-UUID: 93a1722b9767422c8882efddb0a8ff00-20220407 X-UUID: 93a1722b9767422c8882efddb0a8ff00-20220407 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 922121296; Thu, 07 Apr 2022 22:32:12 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 7 Apr 2022 22:23:06 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 Apr 2022 13:23:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 8 Apr 2022 13:23:05 +0800 From: Johnson Wang To: , , , CC: , , , , , , , , Johnson Wang Subject: [PATCH v2 0/2] Introduce MediaTek CCI devfreq driver Date: Fri, 8 Apr 2022 13:21:48 +0800 Message-ID: <20220408052150.22536-1-johnson.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220407_223215_466218_E49B68B1 X-CRM114-Status: GOOD ( 11.71 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org The Cache Coherent Interconnect (CCI) is the management of cache coherency by hardware. CCI DEVFREQ is DVFS driver for power saving by scaling clock frequency and supply voltage of CCI. CCI uses the same input clock source and power rail as LITTLE CPUs on Mediatek SoCs. This series depends on: Chanwoo's repo: kernel/git/chanwoo/linux.git branch: devfreq-testing [1]: PM / devfreq: Export devfreq_get_freq_range symbol within devfreq [2]: PM / devfreq: Add cpu based scaling support to passive governor [3]: PM / devfreq: passive: Reduce duplicate code when passive_devfreq case [4]: PM / devfreq: passive: Update frequency when start governor Changes in v2: - Take MT8183 as example in binding document. - Use dev_err() instead of pr_err(). - Use 'goto' statement to handle error case. - Clean up driver code. Johnson Wang (2): dt-bindings: devfreq: mediatek: Add mtk cci devfreq dt-bindings PM / devfreq: mediatek: Introduce MediaTek CCI devfreq driver .../devicetree/bindings/devfreq/mtk-cci.yaml | 72 +++ drivers/devfreq/Kconfig | 10 + drivers/devfreq/Makefile | 1 + drivers/devfreq/mtk-cci-devfreq.c | 479 ++++++++++++++++++ 4 files changed, 562 insertions(+) create mode 100644 Documentation/devicetree/bindings/devfreq/mtk-cci.yaml create mode 100644 drivers/devfreq/mtk-cci-devfreq.c -- 2.18.0 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1E4FBC433F5 for ; Fri, 8 Apr 2022 05:33:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=ae2WCqBit9/4E4ulYDSG/Y8lrZpssErLDedZn1wiMPg=; b=j9Nssm4ZPzB9zZ aFpBkmIUYf0Pv3ubCAls9thpoAYw73guIgZ7c0o4SuK9l+1J6E1rMUGymwDwrwbcZPueO5TpD02hG sQlrM5L7yfAc6FVzMedDm4tcjulXtM/p/VjqGhPfrDJURcdAxos3BO9jZzIh9xmKJS9YphqtFob3P pFWSwAzEE0otNNPsfbbwv7pKxQNDM4NdR2C+nMRJRoN+PUIaHCKjq3Vks7inh/B/ikZM2eIr2Tuye g4EvVAkmAV/+YZGihJ68Jz2xALYafjrWZHhPCx47MtdIXMQ7qSjHL0W5dSho+lfneex67cmq17UxT SOj5frPW+REpKbb9sw3A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nchEI-00F9Px-VT; Fri, 08 Apr 2022 05:32:19 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nchEF-00F9P9-Cv; Fri, 08 Apr 2022 05:32:16 +0000 X-UUID: 93a1722b9767422c8882efddb0a8ff00-20220407 X-UUID: 93a1722b9767422c8882efddb0a8ff00-20220407 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 922121296; Thu, 07 Apr 2022 22:32:12 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 7 Apr 2022 22:23:06 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 Apr 2022 13:23:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 8 Apr 2022 13:23:05 +0800 From: Johnson Wang To: , , , CC: , , , , , , , , Johnson Wang Subject: [PATCH v2 0/2] Introduce MediaTek CCI devfreq driver Date: Fri, 8 Apr 2022 13:21:48 +0800 Message-ID: <20220408052150.22536-1-johnson.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220407_223215_466218_E49B68B1 X-CRM114-Status: GOOD ( 11.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Cache Coherent Interconnect (CCI) is the management of cache coherency by hardware. CCI DEVFREQ is DVFS driver for power saving by scaling clock frequency and supply voltage of CCI. CCI uses the same input clock source and power rail as LITTLE CPUs on Mediatek SoCs. This series depends on: Chanwoo's repo: kernel/git/chanwoo/linux.git branch: devfreq-testing [1]: PM / devfreq: Export devfreq_get_freq_range symbol within devfreq [2]: PM / devfreq: Add cpu based scaling support to passive governor [3]: PM / devfreq: passive: Reduce duplicate code when passive_devfreq case [4]: PM / devfreq: passive: Update frequency when start governor Changes in v2: - Take MT8183 as example in binding document. - Use dev_err() instead of pr_err(). - Use 'goto' statement to handle error case. - Clean up driver code. Johnson Wang (2): dt-bindings: devfreq: mediatek: Add mtk cci devfreq dt-bindings PM / devfreq: mediatek: Introduce MediaTek CCI devfreq driver .../devicetree/bindings/devfreq/mtk-cci.yaml | 72 +++ drivers/devfreq/Kconfig | 10 + drivers/devfreq/Makefile | 1 + drivers/devfreq/mtk-cci-devfreq.c | 479 ++++++++++++++++++ 4 files changed, 562 insertions(+) create mode 100644 Documentation/devicetree/bindings/devfreq/mtk-cci.yaml create mode 100644 drivers/devfreq/mtk-cci-devfreq.c -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel