From patchwork Sat Aug 10 07:44:15 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: manjunath.goudar@linaro.org X-Patchwork-Id: 18987 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-gh0-f198.google.com (mail-gh0-f198.google.com [209.85.160.198]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id B4895248EC for ; Sat, 10 Aug 2013 07:44:37 +0000 (UTC) Received: by mail-gh0-f198.google.com with SMTP id r13sf5800649ghr.5 for ; Sat, 10 Aug 2013 00:44:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-gm-message-state:delivered-to:from:to:cc:subject :date:message-id:in-reply-to:references:x-original-sender :x-original-authentication-results:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-unsubscribe; bh=EIvfvQoheRMaQoktk5YDipY0hdULsvh/rXMBlzx2G4Q=; b=nx2YFu+Aa3BrjMgDyAG4zHz0X9D0emZ1TEMsxwntWo7oMWGp0RGhBylDLYYtAH6Pfx 419/CaAEu6iVGWB8edzdy6jrBXpFQC0w2UBWNcBVLdCaWTqkbR5u/TpaWQtGYHzEsLgQ rt6gQ0Jvxih1wFxMb+WYFSKsG8x8COxq3BJKo9LzHy5/YfByr6o1H9xM6yqKKm5B+T0b /L62DuLatQR32M1+d4rT99/KMnZaoOfTf61g72EGhY5NCLI/1x/d5D+ON2dTcWFboAWn V5zt2okzfMtqHWCtQ4rtyyusYgmYOGQz6sI4mJBiq9MfkYCXe39u0N/MSUgYhjixOeLi gz3w== X-Received: by 10.224.169.1 with SMTP id w1mr16106870qay.4.1376120677344; Sat, 10 Aug 2013 00:44:37 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.49.130.196 with SMTP id og4ls1744961qeb.69.gmail; Sat, 10 Aug 2013 00:44:37 -0700 (PDT) X-Received: by 10.58.73.202 with SMTP id n10mr2256850vev.7.1376120677236; Sat, 10 Aug 2013 00:44:37 -0700 (PDT) Received: from mail-vb0-f43.google.com (mail-vb0-f43.google.com [209.85.212.43]) by mx.google.com with ESMTPS id gn1si5716261vec.143.2013.08.10.00.44.37 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 10 Aug 2013 00:44:37 -0700 (PDT) Received-SPF: neutral (google.com: 209.85.212.43 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) client-ip=209.85.212.43; Received: by mail-vb0-f43.google.com with SMTP id h11so4597816vbh.30 for ; Sat, 10 Aug 2013 00:44:37 -0700 (PDT) X-Gm-Message-State: ALoCoQkhbGz4a97QdMWvjHcluGFGomW/dWXpUGJOvx8Z1Up4y9qUzzj+gsKFS5SytiJt4muo1jbG X-Received: by 10.220.164.138 with SMTP id e10mr8598130vcy.27.1376120677131; Sat, 10 Aug 2013 00:44:37 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patches@linaro.org Received: by 10.220.174.196 with SMTP id u4csp1610vcz; Sat, 10 Aug 2013 00:44:36 -0700 (PDT) X-Received: by 10.68.48.166 with SMTP id m6mr14886977pbn.105.1376120675951; Sat, 10 Aug 2013 00:44:35 -0700 (PDT) Received: from mail-pa0-f43.google.com (mail-pa0-f43.google.com [209.85.220.43]) by mx.google.com with ESMTPS id ei3si14780691pbb.67.2013.08.10.00.44.35 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 10 Aug 2013 00:44:35 -0700 (PDT) Received-SPF: neutral (google.com: 209.85.220.43 is neither permitted nor denied by best guess record for domain of manjunath.goudar@linaro.org) client-ip=209.85.220.43; Received: by mail-pa0-f43.google.com with SMTP id hz10so5705330pad.30 for ; Sat, 10 Aug 2013 00:44:35 -0700 (PDT) X-Received: by 10.66.192.132 with SMTP id hg4mr15247835pac.84.1376120675437; Sat, 10 Aug 2013 00:44:35 -0700 (PDT) Received: from localhost.localdomain ([223.239.128.199]) by mx.google.com with ESMTPSA id ht5sm24413823pbb.29.2013.08.10.00.44.30 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 10 Aug 2013 00:44:34 -0700 (PDT) From: Manjunath Goudar To: linux-arm-kernel@lists.infradead.org Cc: patches@linaro.org, arnd@linaro.org, dsaxena@linaro.org, manjunath.goudar@linaro.org, linaro-kernel@lists.linaro.org, Arnd Bergmann , Greg KH , linux-usb@vger.kernel.org Subject: [PATCH V2] USB: OHCI: make ohci-nxp a separate driver Date: Sat, 10 Aug 2013 13:14:15 +0530 Message-Id: <1376120655-31149-1-git-send-email-manjunath.goudar@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1372585818-8441-1-git-send-email-manjunath.goudar@linaro.org> References: <1372585818-8441-1-git-send-email-manjunath.goudar@linaro.org> X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: manjunath.goudar@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.212.43 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org List-ID: X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Separate the OHCI NXP host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Many place function name and struct name started with usb, current scenario replaced usb with ohci for proper naming. Signed-off-by: Manjunath Goudar Signed-off-by: Deepak Saxena Acked-by: Alan Stern Cc: Arnd Bergmann Cc: Greg KH Cc: linux-usb@vger.kernel.org V2: - Directive check NXP_PLATFORM_DRIVER block has been removed. --- drivers/usb/host/Kconfig | 8 +++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-hcd.c | 18 ------- drivers/usb/host/ohci-nxp.c | 124 +++++++++++++++++-------------------------- 4 files changed, 58 insertions(+), 93 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 795d14d..0519769 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -398,6 +398,14 @@ config USB_OHCI_HCD_S3CXXXX Enables support for the on-chip OHCI controller on S3CXXXX chips. +config USB_OHCI_HCD_LPC32XX + tristate "Support for LPC on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_LPC32XX + default y + ---help--- + Enables support for the on-chip OHCI controller on + NXP chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index d3e9e66..0835c39 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_USB_OHCI_HCD_OMAP3) += ohci-omap3.o obj-$(CONFIG_USB_OHCI_HCD_SPEAR) += ohci-spear.o obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o +obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index f3dcaa2..39d14f0 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1194,11 +1194,6 @@ MODULE_LICENSE ("GPL"); #define EP93XX_PLATFORM_DRIVER ohci_hcd_ep93xx_driver #endif -#ifdef CONFIG_ARCH_LPC32XX -#include "ohci-nxp.c" -#define NXP_PLATFORM_DRIVER usb_hcd_nxp_driver -#endif - #ifdef CONFIG_ARCH_DAVINCI_DA8XX #include "ohci-da8xx.c" #define DAVINCI_PLATFORM_DRIVER ohci_hcd_da8xx_driver @@ -1301,12 +1296,6 @@ static int __init ohci_hcd_mod_init(void) goto error_ep93xx; #endif -#ifdef NXP_PLATFORM_DRIVER - retval = platform_driver_register(&NXP_PLATFORM_DRIVER); - if (retval < 0) - goto error_nxp; -#endif - #ifdef DAVINCI_PLATFORM_DRIVER retval = platform_driver_register(&DAVINCI_PLATFORM_DRIVER); if (retval < 0) @@ -1320,10 +1309,6 @@ static int __init ohci_hcd_mod_init(void) platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER); error_davinci: #endif -#ifdef NXP_PLATFORM_DRIVER - platform_driver_unregister(&NXP_PLATFORM_DRIVER); - error_nxp: -#endif #ifdef EP93XX_PLATFORM_DRIVER platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); error_ep93xx: @@ -1368,9 +1353,6 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef DAVINCI_PLATFORM_DRIVER platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER); #endif -#ifdef NXP_PLATFORM_DRIVER - platform_driver_unregister(&NXP_PLATFORM_DRIVER); -#endif #ifdef EP93XX_PLATFORM_DRIVER platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); #endif diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index 7d7d507..8d6eecf 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -19,10 +19,19 @@ * or implied. */ #include -#include +#include +#include #include +#include +#include #include +#include #include +#include +#include + +#include "ohci.h" + #include #include @@ -57,6 +66,11 @@ #define start_int_umask(irq) #endif +#define DRIVER_DESC "OHCI NXP driver" + +static const char hcd_name[] = "ohci-nxp"; +static struct hc_driver __read_mostly ohci_nxp_hc_driver; + static struct i2c_client *isp1301_i2c_client; extern int usb_disabled(void); @@ -132,14 +146,14 @@ static inline void isp1301_vbus_off(void) OTG1_VBUS_DRV); } -static void nxp_start_hc(void) +static void ohci_nxp_start_hc(void) { unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN; __raw_writel(tmp, USB_OTG_STAT_CONTROL); isp1301_vbus_on(); } -static void nxp_stop_hc(void) +static void ohci_nxp_stop_hc(void) { unsigned long tmp; isp1301_vbus_off(); @@ -147,68 +161,9 @@ static void nxp_stop_hc(void) __raw_writel(tmp, USB_OTG_STAT_CONTROL); } -static int ohci_nxp_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start\n"); - ohci_stop(hcd); - return ret; - } - return 0; -} - -static const struct hc_driver ohci_nxp_hc_driver = { - .description = hcd_name, - .product_desc = "nxp OHCI", - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - .hcd_priv_size = sizeof(struct ohci_hcd), - /* - * basic lifecycle operations - */ - .start = ohci_nxp_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -static int usb_hcd_nxp_probe(struct platform_device *pdev) +static int ohci_hcd_nxp_probe(struct platform_device *pdev) { struct usb_hcd *hcd = 0; - struct ohci_hcd *ohci; const struct hc_driver *driver = &ohci_nxp_hc_driver; struct resource *res; int ret = 0, irq; @@ -313,17 +268,15 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev) goto fail_resource; } - nxp_start_hc(); + ohci_nxp_start_hc(); platform_set_drvdata(pdev, hcd); - ohci = hcd_to_ohci(hcd); - ohci_hcd_init(ohci); dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq); ret = usb_add_hcd(hcd, irq, 0); if (ret == 0) return ret; - nxp_stop_hc(); + ohci_nxp_stop_hc(); fail_resource: usb_put_hcd(hcd); fail_hcd: @@ -345,12 +298,12 @@ fail_disable: return ret; } -static int usb_hcd_nxp_remove(struct platform_device *pdev) +static int ohci_hcd_nxp_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); usb_remove_hcd(hcd); - nxp_stop_hc(); + ohci_nxp_stop_hc(); usb_put_hcd(hcd); clk_disable(usb_pll_clk); clk_put(usb_pll_clk); @@ -366,20 +319,41 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev) MODULE_ALIAS("platform:usb-ohci"); #ifdef CONFIG_OF -static const struct of_device_id usb_hcd_nxp_match[] = { +static const struct of_device_id ohci_hcd_nxp_match[] = { { .compatible = "nxp,ohci-nxp" }, {}, }; -MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match); +MODULE_DEVICE_TABLE(of, ohci_hcd_nxp_match); #endif -static struct platform_driver usb_hcd_nxp_driver = { +static struct platform_driver ohci_hcd_nxp_driver = { .driver = { .name = "usb-ohci", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(usb_hcd_nxp_match), + .of_match_table = of_match_ptr(ohci_hcd_nxp_match), }, - .probe = usb_hcd_nxp_probe, - .remove = usb_hcd_nxp_remove, + .probe = ohci_hcd_nxp_probe, + .remove = ohci_hcd_nxp_remove, }; +static int __init ohci_nxp_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_nxp_hc_driver, NULL); + return platform_driver_register(&ohci_hcd_nxp_driver); +} +module_init(ohci_nxp_init); + +static void __exit ohci_nxp_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_nxp_driver); +} +module_exit(ohci_nxp_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL v2"); +