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Wed, 14 Oct 2020 19:24:57 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 14 Oct 2020 20:24:55 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 15 Oct 2020 11:24:37 +0800 Received: from [172.21.77.33] (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 15 Oct 2020 11:24:36 +0800 Message-ID: <1602732276.13734.1.camel@mtkswgap22> Subject: [PATCH v8] Add MediaTek MT6779 devapc driver From: Neal Liu To: Rob Herring , Chun-Kuang Hu , Matthias Brugger Date: Thu, 15 Oct 2020 11:24:36 +0800 In-Reply-To: <1602732039-12179-1-git-send-email-neal.liu@mediatek.com> References: <1602732039-12179-1-git-send-email-neal.liu@mediatek.com> X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201014_232517_470449_C8DDB64D X-CRM114-Status: GOOD ( 16.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "devicetree@vger.kernel.org" , wsd_upstream , lkml , "linux-mediatek@lists.infradead.org" , Neal Liu , "linux-arm-kernel@lists.infradead.org" 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 add subject On Thu, 2020-10-15 at 11:20 +0800, Neal Liu wrote: > These patch series introduce a MediaTek MT6779 devapc driver. > > MediaTek bus fabric provides TrustZone security support and data protection to prevent slaves from being accessed by unexpected masters. > The security violation is logged and sent to the processor for further analysis or countermeasures. > > Any occurrence of security violation would raise an interrupt, and it will be handled by mtk-devapc driver. > The violation information is printed in order to find the murderer. > > changes since v7: > - fix VIO_MOD_TO_REG_IND calculation wrong problem. > - revise parameter type of ISR. > > changes since v6: > - remove unnecessary mask/unmask module irq during ISR. > > changes since v5: > - remove redundant write reg operation. > - use static variable of vio_dbgs instead. > - add stop_devapc() if driver is removed. > > changes since v4: > - refactor data structure. > - merge two simple functions into one. > - refactor register setting to prevent too many function call overhead. > > changes since v3: > - revise violation handling flow to make it more easily to understand > hardware behavior. > - add more comments to understand how hardware works. > > changes since v2: > - pass platform info through DT data. > - remove unnecessary function. > - remove slave_type because it always equals to 1 in current support SoC. > - use vio_idx_num instread of list all devices' index. > - add more comments to describe hardware behavior. > > changes since v1: > - move SoC specific part to DT data. > - remove unnecessary boundary check. > - remove unnecessary data type declaration. > - use read_poll_timeout() instread of for loop polling. > - revise coding style elegantly. > > > *** BLURB HERE *** > > Neal Liu (2): > dt-bindings: devapc: add bindings for mtk-devapc > soc: mediatek: add mt6779 devapc driver > > .../bindings/soc/mediatek/devapc.yaml | 58 ++++ > drivers/soc/mediatek/Kconfig | 9 + > drivers/soc/mediatek/Makefile | 1 + > drivers/soc/mediatek/mtk-devapc.c | 308 ++++++++++++++++++ > 4 files changed, 376 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/mediatek/devapc.yaml > create mode 100644 drivers/soc/mediatek/mtk-devapc.c > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel