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To: Peng Fan , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "jassisinghbrar@gmail.com" , "o.rempel@pengutronix.de" , Leonard Crestez Subject: RE: [PATCH V7 0/4] mailbox/firmware: imx: support SCU channel type Thread-Topic: [PATCH V7 0/4] mailbox/firmware: imx: support SCU channel type Thread-Index: AQHV/cQDu85ufqDAx06lOMhNtamjbahaF9Qw Date: Tue, 31 Mar 2020 13:34:41 +0000 Message-ID: References: <1584604193-2945-1-git-send-email-peng.fan@nxp.com> In-Reply-To: <1584604193-2945-1-git-send-email-peng.fan@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=peng.fan@nxp.com; x-originating-ip: [180.107.26.236] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 39770401-7a45-4acb-bcc3-08d7d57844a1 x-ms-traffictypediagnostic: AM0PR04MB4481:|AM0PR04MB4481: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: 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linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Jassi, > Subject: [PATCH V7 0/4] mailbox/firmware: imx: support SCU channel type Are you ok with the mailbox part? Thanks, Peng. > > From: Peng Fan > > V7: > Per Leonard's comments, added check for TE/RE Passed test from > Leonard's https://github.com/cdleonard/imx-scu-test > > V6: > Add Oleksij's R-b tag > Patch 3/4, per > https://www.kernel.org/doc/Documentation/printk-formats.txt > should use %zu for printk sizeof > > V5: > Move imx_mu_dcfg below imx_mu_priv > Add init hooks to imx_mu_dcfg > drop __packed __aligned > Add more debug msg > code style cleanup > > V4: > Drop IMX_MU_TYPE_[GENERIC, SCU] > Pack MU chans init to separate function Add separate function for SCU > chans init and xlate Add santity check to msg hdr.size Limit SCU MU chans > to 6, TX0/RX0/RXDB[0-3] > > V3: > Rebase to Shawn's for-next > Include fsl,imx8-mu-scu compatible > Per Oleksij's comments, introduce generic tx/rx and added scu mu type > Check fsl,imx8-mu-scu in firmware driver for fast_ipc > > V2: > Drop patch 1/3 which added fsl,scu property Force to use scu channel type > when machine has node compatible "fsl,imx-scu" > Force imx-scu to use fast_ipc > > I not found a generic method to make SCFW message generic enough, SCFW > message is not fixed length including TX and RX. And it use TR0/RR0 > interrupt. > > V1: > Sorry to bind the mailbox/firmware patch together. This is make it to > understand what changed to support using 1 TX and 1 RX channel for SCFW > message. > > Per i.MX8QXP Reference mannual, there are several message using examples. > One of them is: > Passing short messages: Transmit register(s) can be used to pass short > messages from one to four words in length. For example, when a four-word > message is desired, only one of the registers needs to have its corresponding > interrupt enable bit set at the receiver side. > > This patchset is to using this for SCFW message to replace four TX and four RX > method. > > Peng Fan (4): > dt-bindings: mailbox: imx-mu: add SCU MU support > mailbox: imx: restructure code to make easy for new MU > mailbox: imx: add SCU MU support > firmware: imx-scu: Support one TX and one RX > > .../devicetree/bindings/mailbox/fsl,mu.txt | 2 + > drivers/firmware/imx/imx-scu.c | 54 +++- > drivers/mailbox/imx-mailbox.c | 288 > +++++++++++++++++---- > 3 files changed, 281 insertions(+), 63 deletions(-) > > > base-commit: e506dba69a5e9aaff20fd73a108639f84e2c39d9 > -- > 2.16.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel