From patchwork Fri Apr 12 23:37:36 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergei Shtylyov X-Patchwork-Id: 2439371 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 41B1A3FD40 for ; Fri, 12 Apr 2013 23:38:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754692Ab3DLXig (ORCPT ); Fri, 12 Apr 2013 19:38:36 -0400 Received: from mail-lb0-f180.google.com ([209.85.217.180]:51813 "EHLO mail-lb0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754646Ab3DLXif (ORCPT ); Fri, 12 Apr 2013 19:38:35 -0400 Received: by mail-lb0-f180.google.com with SMTP id t11so3098358lbi.39 for ; Fri, 12 Apr 2013 16:38:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:to:subject:cc:from:organization:date:mime-version :content-type:content-transfer-encoding:message-id :x-gm-message-state; bh=p6os5IEl2UGA64/wCVhRoq8M8EP6xw9/yMmmMaSL/Ww=; b=dDzy1T9UETwn3xwxCO/XYpJTymjPD9eENTB9kfkmruVQwBtZAPjk0DuFn54j5zV+9x McCl5lCyi/SHUVKQ9QG7iMVIN9mOhDj1oZ4zueQZVliFsy1RTPk36rHE0xKe1TNhY+1d waF9jM7nvuiuV7xyEwVePZjNFUCuY8WPVTPioPgYBkr2qESHdyPtnXTG5X+MM+1tiBIT AGwEfkjDrQ3ssAgtNnVm7DaQyPwXirXxiZ7lIOcUhwCxct5UIOam8M3pMjDaksi6VXsA Nyr0NBN/LMKfsDd2E7Ao52G6bgrJbIc0NsCxwX4fDQTTzNzF0wbLN8ScONzIS2h4/xeY c3VA== X-Received: by 10.152.110.167 with SMTP id ib7mr6326976lab.22.1365809913263; Fri, 12 Apr 2013 16:38:33 -0700 (PDT) Received: from wasted.dev.rtsoft.ru (ppp91-79-80-224.pppoe.mtu-net.ru. [91.79.80.224]) by mx.google.com with ESMTPS id or9sm4038994lbb.8.2013.04.12.16.38.31 (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 12 Apr 2013 16:38:32 -0700 (PDT) To: linux-usb@vger.kernel.org, gregkh@linuxfoundation.org, balbi@ti.com Subject: [PATCH v4 9/9] rcar-phy: handle platform data Cc: linux-sh@vger.kernel.org From: Sergei Shtylyov Organization: Cogent Embedded Date: Sat, 13 Apr 2013 03:37:36 +0400 MIME-Version: 1.0 Message-Id: <201304130337.37259.sergei.shtylyov@cogentembedded.com> X-Gm-Message-State: ALoCoQkPERpBnwEWM3evDTXOdq1IA+ouh4U2Frrm8/lrDh4Mx/e0IXK9FonYJfz9hp0wytDK52rA Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Set the USBPCTRL0 register from the passed platform data in rcar_usb_phy_init(); don't reset it to 0 in rcar_usb_phy_shutdown() anymore as that does not make sense. Also, don't allow the driver's probe to succeed when the platform data are not supplied with a device. The patch has been tested on the Marzen and BOCK-W boards. Signed-off-by: Sergei Shtylyov Acked-by: Kuninori Morimoto Acked-by: Simon Horman --- Changes since version 3: - moved USBPCTRL0 register bit #define's from patch #7, removing the prefixes; - implemented parsing of the platform data to set USBPCTRL0 register. Changes since version 2: - added a note about testing to the changelog; - added ACKs from Simon Horman and Kuninori Morimoto. drivers/usb/phy/rcar-phy.c | 53 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 46 insertions(+), 7 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Index: renesas/drivers/usb/phy/rcar-phy.c =================================================================== --- renesas.orig/drivers/usb/phy/rcar-phy.c +++ renesas/drivers/usb/phy/rcar-phy.c @@ -1,8 +1,9 @@ /* * Renesas R-Car USB phy driver * - * Copyright (C) 2012 Renesas Solutions Corp. + * Copyright (C) 2012-2013 Renesas Solutions Corp. * Kuninori Morimoto + * Copyright (C) 2013 Cogent Embedded, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -11,10 +12,11 @@ #include #include -#include #include #include #include +#include +#include /* REGS block */ #define USBPCTRL0 0x00 @@ -24,6 +26,25 @@ #define USBOH0 0x1C #define USBCTL0 0x58 +/* USBPCTRL0 */ +#define OVC2 (1 << 10) /* Switches the OVC input pin for port 2: */ + /* 1: USB_OVC2, 0: OVC2 */ +#define OVC1_VBUS1 (1 << 9) /* Switches the OVC input pin for port 1: */ + /* 1: USB_OVC1, 0: OVC1/VBUS1 */ + /* Function mode: set to 0 */ +#define OVC0 (1 << 8) /* Switches the OVC input pin for port 0: */ + /* 1: USB_OVC0 pin, 0: OVC0 */ +#define OVC2_ACT (1 << 6) /* Host mode: OVC2 polarity: */ + /* 1: active-high, 0: active-low */ +#define PENC (1 << 4) /* Function mode: output level of PENC1 pin: */ + /* 1: high, 0: low */ +#define OVC0_ACT (1 << 3) /* Host mode: OVC0 polarity: */ + /* 1: active-high, 0: active-low */ +#define OVC1_ACT (1 << 1) /* Host mode: OVC1 polarity: */ + /* 1: active-high, 0: active-low */ + /* Function mode: be sure to set to 1 */ +#define PORT1 (1 << 0) /* Selects port 1 mode: */ + /* 1: function, 0: host */ /* USBPCTRL1 */ #define PHY_RST (1 << 2) #define PLL_ENB (1 << 1) @@ -55,7 +76,9 @@ static int rcar_usb_phy_init(struct usb_ { struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy); struct device *dev = phy->dev; + struct rcar_phy_platform_data *pdata = dev->platform_data; void __iomem *reg0 = priv->reg0; + const u8 ovcn_act[] = { OVC0_ACT, OVC1_ACT, OVC2_ACT }; int i; u32 val; unsigned long flags; @@ -89,8 +112,21 @@ static int rcar_usb_phy_init(struct usb_ /* (4) USB-PHY reset clear */ iowrite32(PHY_ENB | PLL_ENB | PHY_RST, (reg0 + USBPCTRL1)); - /* set platform specific port settings */ - iowrite32(0x00000000, (reg0 + USBPCTRL0)); + /* Board specific port settings */ + val = 0; + if (pdata->port1_func) + val |= PORT1; + if (pdata->penc1) + val |= PENC; + for (i = 0; i < 3; i++) { + /* OVCn bits follow each other in the right order */ + if (pdata->ovc_pin[i].select_3_3v) + val |= OVC0 << i; + /* OVCn_ACT bits are spaced by irregular intervals */ + if (pdata->ovc_pin[i].active_high) + val |= ovcn_act[i]; + } + iowrite32(val, (reg0 + USBPCTRL0)); /* * Bus alignment settings @@ -117,10 +153,8 @@ static void rcar_usb_phy_shutdown(struct spin_lock_irqsave(&priv->lock, flags); - if (priv->counter-- == 1) { /* last user */ - iowrite32(0x00000000, (reg0 + USBPCTRL0)); + if (priv->counter-- == 1) /* last user */ iowrite32(0x00000000, (reg0 + USBPCTRL1)); - } spin_unlock_irqrestore(&priv->lock, flags); } @@ -133,6 +167,11 @@ static int rcar_usb_phy_probe(struct pla void __iomem *reg0; int ret; + if (!pdev->dev.platform_data) { + dev_err(dev, "No platform data\n"); + return -EINVAL; + } + res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res0) { dev_err(dev, "Not enough platform resources\n");