Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752465Ab3GHKoD (ORCPT ); Mon, 8 Jul 2013 06:44:03 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:49544 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752334Ab3GHKn7 (ORCPT ); Mon, 8 Jul 2013 06:43:59 -0400 From: George Cherian To: CC: , , , , , , George Cherian Subject: [PATCH 5/5] usb: musb: dsps: Remove the phy control from glue and add phy driver APIs Date: Mon, 8 Jul 2013 16:13:21 +0530 Message-ID: <1373280201-31785-6-git-send-email-george.cherian@ti.com> X-Mailer: git-send-email 1.8.1 In-Reply-To: <1373280201-31785-1-git-send-email-george.cherian@ti.com> References: <1373280201-31785-1-git-send-email-george.cherian@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5879 Lines: 196 Remove usb phy control module access from platform glue. The same is now done using amxxxx phy driver and phy-omap-control. Signed-off-by: George Cherian --- drivers/usb/musb/musb_dsps.c | 105 +++++++++++++++---------------------------- 1 file changed, 36 insertions(+), 69 deletions(-) diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 41f135a..8f4e04a 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -123,49 +123,11 @@ struct dsps_glue { const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */ struct timer_list timer[2]; /* otg_workaround timer */ unsigned long last_timer[2]; /* last timer data for each instance */ - u32 __iomem *usb_ctrl[2]; }; -#define DSPS_AM33XX_CONTROL_MODULE_PHYS_0 0x44e10620 -#define DSPS_AM33XX_CONTROL_MODULE_PHYS_1 0x44e10628 +#define glue_to_musb(g, i) platform_get_drvdata(g->musb[i]) -static const resource_size_t dsps_control_module_phys[] = { - DSPS_AM33XX_CONTROL_MODULE_PHYS_0, - DSPS_AM33XX_CONTROL_MODULE_PHYS_1, -}; - -#define USBPHY_CM_PWRDN (1 << 0) -#define USBPHY_OTG_PWRDN (1 << 1) -#define USBPHY_OTGVDET_EN (1 << 19) -#define USBPHY_OTGSESSEND_EN (1 << 20) - -/** - * musb_dsps_phy_control - phy on/off - * @glue: struct dsps_glue * - * @id: musb instance - * @on: flag for phy to be switched on or off - * - * This is to enable the PHY using usb_ctrl register in system control - * module space. - * - * XXX: This function will be removed once we have a seperate driver for - * control module - */ -static void musb_dsps_phy_control(struct dsps_glue *glue, u8 id, u8 on) -{ - u32 usbphycfg; - usbphycfg = readl(glue->usb_ctrl[id]); - - if (on) { - usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN); - usbphycfg |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN; - } else { - usbphycfg |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN; - } - - writel(usbphycfg, glue->usb_ctrl[id]); -} /** * dsps_musb_enable - enable interrupts */ @@ -411,16 +373,31 @@ static int dsps_musb_init(struct musb *musb) void __iomem *reg_base = musb->ctrl_base; u32 rev, val; int status; + char phyname[12]; /* 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(); - musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); + if (dev->parent->of_node) { + snprintf(phyname , 12, "am335x-usb%d", pdev->id); + musb->phy = devm_phy_get(dev->parent, phyname); + musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent, + "phys", pdev->id); + } else { + snprintf(phyname , 12, "am335x-usb%d", pdev->id); + musb->phy = devm_phy_get(dev, musb->phy_label); + musb->xceiv = devm_usb_get_phy_dev(dev, pdev->id); + } + if (IS_ERR_OR_NULL(musb->xceiv)) return -EPROBE_DEFER; + if (IS_ERR_OR_NULL(musb->phy)) { + pr_err("no PHY configured\n"); + return -EPROBE_DEFER; + } + + /* Returns zero if e.g. not clocked */ rev = dsps_readl(reg_base, wrp->revision); if (!rev) { @@ -434,7 +411,8 @@ static int dsps_musb_init(struct musb *musb) dsps_writel(reg_base, wrp->control, (1 << wrp->reset)); /* Start the on-chip PHY and its PLL. */ - musb_dsps_phy_control(glue, pdev->id, 1); + phy_init(musb->phy); + phy_power_on(musb->phy); musb->isr = dsps_interrupt; @@ -448,8 +426,7 @@ static int dsps_musb_init(struct musb *musb) return 0; err0: - usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + devm_phy_put(dev->parent, musb->phy); return status; } @@ -462,11 +439,8 @@ static int dsps_musb_exit(struct musb *musb) del_timer_sync(&glue->timer[pdev->id]); /* Shutdown the on-chip PHY and its PLL. */ - musb_dsps_phy_control(glue, pdev->id, 0); - - /* NOP driver needs change if supporting dual instance */ - usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + phy_power_off(musb->phy); + phy_exit(musb->phy); return 0; } @@ -496,16 +470,6 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) char res_name[11]; int ret; - resources[0].start = dsps_control_module_phys[id]; - resources[0].end = resources[0].start + SZ_4 - 1; - resources[0].flags = IORESOURCE_MEM; - - glue->usb_ctrl[id] = devm_ioremap_resource(&pdev->dev, resources); - if (IS_ERR(glue->usb_ctrl[id])) { - ret = PTR_ERR(glue->usb_ctrl[id]); - goto err0; - } - /* first resource is for usbss, so start index from 1 */ res = platform_get_resource(pdev, IORESOURCE_MEM, id + 1); if (!res) { @@ -692,26 +656,29 @@ static int dsps_remove(struct platform_device *pdev) #ifdef CONFIG_PM_SLEEP static int dsps_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev->parent); - struct dsps_glue *glue = platform_get_drvdata(pdev); + struct dsps_glue *glue = dev_get_drvdata(dev); const struct dsps_musb_wrapper *wrp = glue->wrp; + struct musb *musb; int i; - for (i = 0; i < wrp->instances; i++) - musb_dsps_phy_control(glue, i, 0); - + for (i = 0; i < wrp->instances; i++) { + musb = glue_to_musb(glue, i); + phy_power_off(musb->phy); + } return 0; } static int dsps_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev->parent); - struct dsps_glue *glue = platform_get_drvdata(pdev); + struct dsps_glue *glue = dev_get_drvdata(dev); const struct dsps_musb_wrapper *wrp = glue->wrp; + struct musb *musb; int i; - for (i = 0; i < wrp->instances; i++) - musb_dsps_phy_control(glue, i, 1); + for (i = 0; i < wrp->instances; i++) { + musb = glue_to_musb(glue, i); + phy_power_on(musb->phy); + } return 0; } -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/