From patchwork Fri Jan 18 12:17:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 2001551 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 2CDB9DF280 for ; Fri, 18 Jan 2013 12:22:04 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TwAui-0006jF-3P; Fri, 18 Jan 2013 12:19:16 +0000 Received: from bear.ext.ti.com ([192.94.94.41]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TwAtJ-00069C-Vz for linux-arm-kernel@lists.infradead.org; Fri, 18 Jan 2013 12:17:51 +0000 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0ICHiEn020733; Fri, 18 Jan 2013 06:17:44 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0ICHi0Z003089; Fri, 18 Jan 2013 06:17:44 -0600 Received: from dlelxv22.itg.ti.com (172.17.1.197) by dfle73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.1.323.3; Fri, 18 Jan 2013 06:17:44 -0600 Received: from rockdesk.itg.ti.com (h0-82.vpn.ti.com [172.24.0.82]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0ICHPrx027831; Fri, 18 Jan 2013 06:17:42 -0600 From: Roger Quadros To: , , Subject: [PATCH v8 06/22] mfd: omap-usb-tll: introduce and use mode_needs_tll() Date: Fri, 18 Jan 2013 14:17:09 +0200 Message-ID: <1358511445-26656-7-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1358511445-26656-1-git-send-email-rogerq@ti.com> References: <1358511445-26656-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130118_071750_168432_74F28EBB X-CRM114-Status: GOOD ( 12.90 ) X-Spam-Score: -4.6 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [192.94.94.41 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -0.0 SPF_PASS SPF: sender matches SPF record -0.7 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] Cc: linux@arm.linux.org.uk, sshtylyov@mvista.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, kishon@ti.com, linux-arm-kernel@lists.infradead.org, bjorn@mork.no, rogerq@ti.com 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 This is a handy macro to check if the port requires the USB TLL module or not. Use it to Enable the TLL module and manage the clocks. Signed-off-by: Roger Quadros Reviewed-by: Felipe Balbi --- drivers/mfd/omap-usb-tll.c | 20 ++++++++++++-------- 1 files changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c index 4ce134b..6a43391 100644 --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -95,6 +95,10 @@ #define is_ehci_tll_mode(x) (x == OMAP_EHCI_PORT_MODE_TLL) +/* only PHY and UNUSED modes don't need TLL */ +#define omap_usb_mode_needs_tll(x) ((x != OMAP_USBHS_PORT_MODE_UNUSED) &&\ + (x != OMAP_EHCI_PORT_MODE_PHY)) + struct usbtll_omap { int nch; /* num. of channels */ struct usbhs_omap_platform_data *pdata; @@ -211,6 +215,7 @@ static int usbtll_omap_probe(struct platform_device *pdev) unsigned long flags; int ret = 0; int i, ver; + bool needs_tll; dev_dbg(dev, "starting TI HSUSB TLL Controller\n"); @@ -281,12 +286,11 @@ static int usbtll_omap_probe(struct platform_device *pdev) spin_lock_irqsave(&tll->lock, flags); - if (is_ehci_tll_mode(pdata->port_mode[0]) || - is_ehci_tll_mode(pdata->port_mode[1]) || - is_ehci_tll_mode(pdata->port_mode[2]) || - is_ohci_port(pdata->port_mode[0]) || - is_ohci_port(pdata->port_mode[1]) || - is_ohci_port(pdata->port_mode[2])) { + needs_tll = false; + for (i = 0; i < tll->nch; i++) + needs_tll |= omap_usb_mode_needs_tll(pdata->port_mode[i]); + + if (needs_tll) { /* Program Common TLL register */ reg = usbtll_read(base, OMAP_TLL_SHARED_CONF); @@ -374,7 +378,7 @@ static int usbtll_runtime_resume(struct device *dev) spin_lock_irqsave(&tll->lock, flags); for (i = 0; i < tll->nch; i++) { - if (is_ehci_tll_mode(pdata->port_mode[i])) { + if (omap_usb_mode_needs_tll(pdata->port_mode[i])) { int r; if (!tll->ch_clk[i]) @@ -410,7 +414,7 @@ static int usbtll_runtime_suspend(struct device *dev) spin_lock_irqsave(&tll->lock, flags); for (i = 0; i < tll->nch; i++) { - if (is_ehci_tll_mode(pdata->port_mode[i])) { + if (omap_usb_mode_needs_tll(pdata->port_mode[i])) { if (tll->ch_clk[i]) clk_disable(tll->ch_clk[i]); }