From patchwork Thu Jul 19 05:41:32 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajay Kumar Gupta X-Patchwork-Id: 1215171 Return-Path: X-Original-To: patchwork-linux-omap@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 6FA683FD4F for ; Thu, 19 Jul 2012 05:42:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753933Ab2GSFmJ (ORCPT ); Thu, 19 Jul 2012 01:42:09 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:53514 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752987Ab2GSFl4 (ORCPT ); Thu, 19 Jul 2012 01:41:56 -0400 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id q6J5fn09026544; Thu, 19 Jul 2012 00:41:50 -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 q6J5fkLi000889; Thu, 19 Jul 2012 11:11:49 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Thu, 19 Jul 2012 11:11:47 +0530 Received: from localhost.localdomain (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id q6J5feIE011434; Thu, 19 Jul 2012 11:11:46 +0530 From: Ajay Kumar Gupta To: CC: , , , , , Ajay Kumar Gupta Subject: [PATCH v3 04/11] usb: otg: nop: add support for multiple tranceiver Date: Thu, 19 Jul 2012 11:11:32 +0530 Message-ID: <1342676499-32507-5-git-send-email-ajay.gupta@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1342676499-32507-1-git-send-email-ajay.gupta@ti.com> References: <1342676499-32507-1-git-send-email-ajay.gupta@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Currently we have one single nop transceiver support as same is defined as a global variable in drivers/usb/otg/nop-usb-xceiv.c. This need to be changed to support multiple otg controller each using nop transceiver on a platform such as am335x. Signed-off-by: Ajay Kumar Gupta --- arch/arm/mach-omap2/board-omap3evm.c | 2 +- drivers/usb/musb/am35x.c | 4 ++-- drivers/usb/musb/blackfin.c | 4 ++-- drivers/usb/musb/da8xx.c | 4 ++-- drivers/usb/musb/davinci.c | 6 +++--- drivers/usb/musb/musb_dsps.c | 10 +++++----- drivers/usb/musb/tusb6010.c | 6 +++--- drivers/usb/otg/nop-usb-xceiv.c | 20 ++++++++++++-------- include/linux/usb/otg.h | 9 +++++---- 9 files changed, 35 insertions(+), 30 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index ef230a0..a3393bc 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -704,7 +704,7 @@ static void __init omap3_evm_init(void) omap_sdrc_init(mt46h32m32lf6_sdrc_params, NULL); /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */ - usb_nop_xceiv_register(); + usb_nop_xceiv_register(0); if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) { /* enable EHCI VBUS using GPIO22 */ diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 01203eb..eb6220f 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -364,7 +364,7 @@ static int am35x_musb_init(struct musb *musb) if (!rev) return -ENODEV; - usb_nop_xceiv_register(); + usb_nop_xceiv_register(musb->id); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) return -ENODEV; @@ -408,7 +408,7 @@ static int am35x_musb_exit(struct musb *musb) data->set_phy_power(0); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return 0; } diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index c848b82..03d081c 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -415,7 +415,7 @@ static int bfin_musb_init(struct musb *musb) } gpio_direction_output(musb->config->gpio_vrsel, 0); - usb_nop_xceiv_register(); + usb_nop_xceiv_register(musb->id); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) { gpio_free(musb->config->gpio_vrsel); @@ -442,7 +442,7 @@ static int bfin_musb_exit(struct musb *musb) gpio_free(musb->config->gpio_vrsel); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return 0; } diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index cebd9d7..3ce4a92 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -425,7 +425,7 @@ static int da8xx_musb_init(struct musb *musb) if (!rev) goto fail; - usb_nop_xceiv_register(); + usb_nop_xceiv_register(musb->id); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) goto fail; @@ -460,7 +460,7 @@ static int da8xx_musb_exit(struct musb *musb) phy_off(); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return 0; } diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 3f094f2..d5156b3 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -385,7 +385,7 @@ static int davinci_musb_init(struct musb *musb) void __iomem *tibase = musb->ctrl_base; u32 revision; - usb_nop_xceiv_register(); + usb_nop_xceiv_register(musb->id); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) goto unregister; @@ -447,7 +447,7 @@ static int davinci_musb_init(struct musb *musb) fail: usb_put_phy(musb->xceiv); unregister: - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return -ENODEV; } @@ -496,7 +496,7 @@ static int davinci_musb_exit(struct musb *musb) phy_off(); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return 0; } diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index a2c8a06..9fcacff 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -420,8 +420,8 @@ static int dsps_musb_init(struct musb *musb) /* mentor core register starts at offset of 0x400 from musb base */ musb->mregs += wrp->musb_core_offset; - /* NOP driver needs change if supporting dual instance */ - usb_nop_xceiv_register(); + /* Register NOP driver */ + usb_nop_xceiv_register(musb->id); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) return -ENODEV; @@ -456,7 +456,7 @@ static int dsps_musb_init(struct musb *musb) return 0; err0: usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return status; } @@ -472,9 +472,9 @@ static int dsps_musb_exit(struct musb *musb) /* Shutdown the on-chip PHY and its PLL. */ musb_dsps_phy_control(glue, musb->id, 0); - /* NOP driver needs change if supporting dual instance */ + /* Unregister NOP driver */ usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return 0; } diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 64a0e95..6b23e55 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -1078,7 +1078,7 @@ static int tusb_musb_init(struct musb *musb) void __iomem *sync = NULL; int ret; - usb_nop_xceiv_register(); + usb_nop_xceiv_register(musb->id); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) return -ENODEV; @@ -1132,7 +1132,7 @@ done: iounmap(sync); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); } return ret; } @@ -1148,7 +1148,7 @@ static int tusb_musb_exit(struct musb *musb) iounmap(musb->sync_va); usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + usb_nop_xceiv_unregister(musb->xceiv); return 0; } diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c index 803f958..2e5e889 100644 --- a/drivers/usb/otg/nop-usb-xceiv.c +++ b/drivers/usb/otg/nop-usb-xceiv.c @@ -35,15 +35,14 @@ struct nop_usb_xceiv { struct usb_phy phy; struct device *dev; + struct platform_device *pd; }; -static struct platform_device *pd; - -void usb_nop_xceiv_register(void) +void usb_nop_xceiv_register(int id) { - if (pd) - return; - pd = platform_device_register_simple("nop_usb_xceiv", -1, NULL, 0); + struct platform_device *pd; + + pd = platform_device_register_simple("nop_usb_xceiv", id, NULL, 0); if (!pd) { printk(KERN_ERR "Unable to register usb nop transceiver\n"); return; @@ -51,10 +50,13 @@ void usb_nop_xceiv_register(void) } EXPORT_SYMBOL(usb_nop_xceiv_register); -void usb_nop_xceiv_unregister(void) +void usb_nop_xceiv_unregister(struct usb_phy *phy) { + struct nop_usb_xceiv *nop = container_of(phy, + struct nop_usb_xceiv, phy); + struct platform_device *pd = nop->pd; + platform_device_unregister(pd); - pd = NULL; } EXPORT_SYMBOL(usb_nop_xceiv_unregister); @@ -107,11 +109,13 @@ static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev) return -ENOMEM; } + nop->pd = pdev; nop->dev = &pdev->dev; nop->phy.dev = nop->dev; nop->phy.label = "nop-xceiv"; nop->phy.set_suspend = nop_set_suspend; nop->phy.state = OTG_STATE_UNDEFINED; + nop->phy.id = pdev->id; nop->phy.otg->phy = &nop->phy; nop->phy.otg->set_host = nop_set_host; diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index 4636d39..36cc791 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -95,6 +95,7 @@ struct usb_phy { struct device *dev; const char *label; unsigned int flags; + u8 id; enum usb_phy_type type; enum usb_otg_state state; @@ -137,14 +138,14 @@ extern void usb_remove_phy(struct usb_phy *); #if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE)) /* sometimes transceivers are accessed only through e.g. ULPI */ -extern void usb_nop_xceiv_register(void); -extern void usb_nop_xceiv_unregister(void); +extern void usb_nop_xceiv_register(int id); +extern void usb_nop_xceiv_unregister(struct usb_phy *); #else -static inline void usb_nop_xceiv_register(void) +static inline void usb_nop_xceiv_register(int id) { } -static inline void usb_nop_xceiv_unregister(void) +static inline void usb_nop_xceiv_unregister(struct usb_phy *phy) { } #endif