From patchwork Mon Jul 9 16:48:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Faiz Abbas X-Patchwork-Id: 10515293 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C75316032C for ; Mon, 9 Jul 2018 16:48:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B526128D1F for ; Mon, 9 Jul 2018 16:48:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A924528DBB; Mon, 9 Jul 2018 16:48:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 498A728D1F for ; Mon, 9 Jul 2018 16:48:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933701AbeGIQr3 (ORCPT ); Mon, 9 Jul 2018 12:47:29 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:32984 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933616AbeGIQr0 (ORCPT ); Mon, 9 Jul 2018 12:47:26 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id w69Gl8NB080866; Mon, 9 Jul 2018 11:47:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1531154828; bh=1hcz4JYQaJoTM2Q/b8QyenKJ6UGVNK4Wn5L4ovfGhEI=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=bUvDjwp1kXHDtXanGs0Yb6Ip+YJTXDCHoBK+xwgOQuA9hPFXNmi0sRXbbv131cmBW 4zDYQvqPnQyyDyHyKm76TyHyREir+QasbU7v/G5OYOg+9eScInhGAUiHONJFuxc7TX 71ubxsr/6iTNj2gZWsLEhRMZp2+bMnhBn3kaRblw= Received: from DLEE102.ent.ti.com (dlee102.ent.ti.com [157.170.170.32]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id w69Gl8oe012753; Mon, 9 Jul 2018 11:47:08 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Mon, 9 Jul 2018 11:47:07 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Mon, 9 Jul 2018 11:47:07 -0500 Received: from a0230074-OptiPlex-7010.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id w69GkpWD001873; Mon, 9 Jul 2018 11:47:04 -0500 From: Faiz Abbas To: , , , , CC: , , , , , , , Subject: [PATCH v5 3/6] bus: ti-sysc: Add support for using ti-sysc for MCAN on dra76x Date: Mon, 9 Jul 2018 22:18:38 +0530 Message-ID: <20180709164841.14182-4-faiz_abbas@ti.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180709164841.14182-1-faiz_abbas@ti.com> References: <20180709164841.14182-1-faiz_abbas@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The dra76x MCAN generic interconnect module has a its own format for the bits in the control registers. Therefore add a new module type, new regbits and new capabilities specific to the MCAN module. Acked-by: Rob Herring CC: Tony Lindgren Signed-off-by: Faiz Abbas --- .../devicetree/bindings/bus/ti-sysc.txt | 1 + drivers/bus/ti-sysc.c | 18 ++++++++++++++++++ include/dt-bindings/bus/ti-sysc.h | 2 ++ include/linux/platform_data/ti-sysc.h | 1 + 4 files changed, 22 insertions(+) diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.txt b/Documentation/devicetree/bindings/bus/ti-sysc.txt index d8ed5b780ed9..91dc2333af01 100644 --- a/Documentation/devicetree/bindings/bus/ti-sysc.txt +++ b/Documentation/devicetree/bindings/bus/ti-sysc.txt @@ -36,6 +36,7 @@ Required standard properties: "ti,sysc-omap-aes" "ti,sysc-mcasp" "ti,sysc-usb-host-fs" + "ti,sysc-dra7-mcan" - reg shall have register areas implemented for the interconnect target module in question such as revision, sysc and syss diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 1cc29629d238..ad1cd6888757 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1552,6 +1552,23 @@ static const struct sysc_capabilities sysc_omap4_usb_host_fs = { .regbits = &sysc_regbits_omap4_usb_host_fs, }; +static const struct sysc_regbits sysc_regbits_dra7_mcan = { + .dmadisable_shift = -ENODEV, + .midle_shift = -ENODEV, + .sidle_shift = -ENODEV, + .clkact_shift = -ENODEV, + .enwkup_shift = 4, + .srst_shift = 0, + .emufree_shift = -ENODEV, + .autoidle_shift = -ENODEV, +}; + +static const struct sysc_capabilities sysc_dra7_mcan = { + .type = TI_SYSC_DRA7_MCAN, + .sysc_mask = SYSC_DRA7_MCAN_ENAWAKEUP | SYSC_OMAP4_SOFTRESET, + .regbits = &sysc_regbits_dra7_mcan, +}; + static int sysc_init_pdata(struct sysc *ddata) { struct ti_sysc_platform_data *pdata = dev_get_platdata(ddata->dev); @@ -1743,6 +1760,7 @@ static const struct of_device_id sysc_match[] = { { .compatible = "ti,sysc-mcasp", .data = &sysc_omap4_mcasp, }, { .compatible = "ti,sysc-usb-host-fs", .data = &sysc_omap4_usb_host_fs, }, + { .compatible = "ti,sysc-dra7-mcan", .data = &sysc_dra7_mcan, }, { }, }; MODULE_DEVICE_TABLE(of, sysc_match); diff --git a/include/dt-bindings/bus/ti-sysc.h b/include/dt-bindings/bus/ti-sysc.h index 2c005376ac0e..7138384e2ef9 100644 --- a/include/dt-bindings/bus/ti-sysc.h +++ b/include/dt-bindings/bus/ti-sysc.h @@ -15,6 +15,8 @@ /* SmartReflex sysc found on 36xx and later */ #define SYSC_OMAP3_SR_ENAWAKEUP (1 << 26) +#define SYSC_DRA7_MCAN_ENAWAKEUP (1 << 4) + /* SYSCONFIG STANDBYMODE/MIDLEMODE/SIDLEMODE supported by hardware */ #define SYSC_IDLE_FORCE 0 #define SYSC_IDLE_NO 1 diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h index 990aad477458..2efa3470a451 100644 --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -14,6 +14,7 @@ enum ti_sysc_module_type { TI_SYSC_OMAP4_SR, TI_SYSC_OMAP4_MCASP, TI_SYSC_OMAP4_USB_HOST_FS, + TI_SYSC_DRA7_MCAN, }; struct ti_sysc_cookie {