From patchwork Tue Sep 11 09:09:40 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 1436151 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 3C629DFAF3 for ; Tue, 11 Sep 2012 09:15:48 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TBMVz-0005Qe-AD; Tue, 11 Sep 2012 09:12:16 +0000 Received: from comal.ext.ti.com ([198.47.26.152]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TBMVX-0005Fb-QP for linux-arm-kernel@lists.infradead.org; Tue, 11 Sep 2012 09:11:49 +0000 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id q8B9BbbP003666; Tue, 11 Sep 2012 04:11:38 -0500 Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id q8B9BbBd027433; Tue, 11 Sep 2012 14:41:37 +0530 (IST) Received: from dbdp33.itg.ti.com (172.24.170.252) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Tue, 11 Sep 2012 14:41:36 +0530 Received: from a0393678lt.apr.dhcp.ti.com (smtpvbd.itg.ti.com [172.24.170.250]) by dbdp33.itg.ti.com (8.13.8/8.13.8) with ESMTP id q8B99f5C026107; Tue, 11 Sep 2012 14:41:36 +0530 From: Kishon Vijay Abraham I To: , , , , , , , , , , , , , , , Subject: [PATCH v2 3/3] usb: musb: omap: Add device tree support for omap musb glue Date: Tue, 11 Sep 2012 14:39:40 +0530 Message-ID: <1347354580-5895-4-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1347354580-5895-1-git-send-email-kishon@ti.com> References: <1347354580-5895-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -7.3 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [198.47.26.152 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Added device tree support for omap musb driver and updated the Documentation with device tree binding information. Signed-off-by: Kishon Vijay Abraham I --- Documentation/devicetree/bindings/usb/omap-usb.txt | 33 ++++++++++++ drivers/usb/musb/omap2430.c | 54 ++++++++++++++++++++ 2 files changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt new file mode 100644 index 0000000..29a043e --- /dev/null +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt @@ -0,0 +1,33 @@ +OMAP GLUE + +OMAP MUSB GLUE + - compatible : Should be "ti,omap4-musb" or "ti,omap3-musb" + - ti,hwmods : must be "usb_otg_hs" + - multipoint : Should be "1" indicating the musb controller supports + multipoint. This is a MUSB configuration-specific setting. + - num_eps : Specifies the number of endpoints. This is also a + MUSB configuration-specific setting. Should be set to "16" + - ram_bits : Specifies the ram address size. Should be set to "12" + - interface_type : This is a board specific setting to describe the type of + interface between the controller and the phy. It should be "0" or "1" + specifying ULPI and UTMI respectively. + - mode : Should be "3" to represent OTG. "1" signifies HOST and "2" + represents PERIPHERAL. + - power : Should be "50". This signifies the controller can supply upto + 100mA when operating in host mode. + +SOC specific device node entry +usb_otg_hs: usb_otg_hs@4a0ab000 { + compatible = "ti,omap4-musb"; + ti,hwmods = "usb_otg_hs"; + multipoint = <1>; + num_eps = <16>; + ram_bits = <12>; +}; + +Board specific device node entry +&usb_otg_hs { + interface_type = <1>; + mode = <3>; + power = <50>; +}; diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index f4d9503..d96873b 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -470,8 +471,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32); static int __devinit omap2430_probe(struct platform_device *pdev) { struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct omap_musb_board_data *data; struct platform_device *musb; struct omap2430_glue *glue; + struct device_node *np = pdev->dev.of_node; + struct musb_hdrc_config *config; struct resource *res; int ret = -ENOMEM; @@ -501,6 +505,42 @@ static int __devinit omap2430_probe(struct platform_device *pdev) if (glue->control_otghs == NULL) dev_dbg(&pdev->dev, "Failed to obtain control memory\n"); + if (np) { + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&pdev->dev, + "failed to allocate musb platfrom data\n"); + ret = -ENOMEM; + goto err1; + } + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + dev_err(&pdev->dev, + "failed to allocate musb board data\n"); + ret = -ENOMEM; + goto err1; + } + + config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); + if (!data) { + dev_err(&pdev->dev, + "failed to allocate musb hdrc config\n"); + goto err1; + } + + of_property_read_u32(np, "mode", (u32 *)&pdata->mode); + of_property_read_u32(np, "interface_type", + (u32 *)&data->interface_type); + of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps); + of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits); + of_property_read_u32(np, "power", (u32 *)&pdata->power); + config->multipoint = of_property_read_bool(np, "multipoint"); + + pdata->board_data = data; + pdata->config = config; + } + pdata->platform_ops = &omap2430_ops; platform_set_drvdata(pdev, glue); @@ -597,12 +637,26 @@ static struct dev_pm_ops omap2430_pm_ops = { #define DEV_PM_OPS NULL #endif +#ifdef CONFIG_OF +static const struct of_device_id omap2430_id_table[] = { + { + .compatible = "ti,omap4-musb" + }, + { + .compatible = "ti,omap3-musb" + }, + {}, +}; +MODULE_DEVICE_TABLE(of, omap2430_id_table); +#endif + static struct platform_driver omap2430_driver = { .probe = omap2430_probe, .remove = __devexit_p(omap2430_remove), .driver = { .name = "musb-omap2430", .pm = DEV_PM_OPS, + .of_match_table = of_match_ptr(omap2430_id_table), }, };