From patchwork Thu Feb 28 10:57:04 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Kleine-Budde X-Patchwork-Id: 2196941 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 76945DF2A2 for ; Thu, 28 Feb 2013 11:01:40 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UB1CA-0000CZ-U5; Thu, 28 Feb 2013 10:58:38 +0000 Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UB1As-00082b-SZ for linux-arm-kernel@lists.infradead.org; Thu, 28 Feb 2013 10:57:21 +0000 Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:21e:67ff:fe11:9c5c]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1UB1Af-0001Qq-TE; Thu, 28 Feb 2013 11:57:05 +0100 Received: from mkl by dude.hi.pengutronix.de with local (Exim 4.80) (envelope-from ) id 1UB1Af-000384-Ia; Thu, 28 Feb 2013 11:57:05 +0100 From: Marc Kleine-Budde To: linux-usb@vger.kernel.org Subject: [PATCH 5/5] USB chipidea i.MX: use devm_usb_get_phy_by_phandle to get phy Date: Thu, 28 Feb 2013 11:57:04 +0100 Message-Id: <1362049024-11383-6-git-send-email-mkl@pengutronix.de> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1362049024-11383-1-git-send-email-mkl@pengutronix.de> References: <1362049024-11383-1-git-send-email-mkl@pengutronix.de> X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130228_055719_737363_5147D5D7 X-CRM114-Status: GOOD ( 16.34 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -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: alexander.shishkin@linux.intel.com, Sascha Hauer , balbi@ti.com, kishon@ti.com, Marc Kleine-Budde , peter.chen@freescale.com, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Sascha Hauer This patch replaces the hand crafted code to retrieve the phy's phandle from the DT by the helper function devm_usb_get_phy_by_phandle() which has been added in commit: "5d3c28b usb: otg: add device tree support to otg library" Reviewed-by: Kishon Vijay Abraham I Reviewed-by: Peter Chen Signed-off-by: Sascha Hauer Signed-off-by: Marc Kleine-Budde --- drivers/usb/chipidea/ci13xxx_imx.c | 38 ++++++++++++++++-------------------- 1 file changed, 17 insertions(+), 21 deletions(-) diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c index b598bb8..6e720ce 100644 --- a/drivers/usb/chipidea/ci13xxx_imx.c +++ b/drivers/usb/chipidea/ci13xxx_imx.c @@ -30,7 +30,6 @@ ((struct usb_phy *)platform_get_drvdata(pdev)) struct ci13xxx_imx_data { - struct device_node *phy_np; struct usb_phy *phy; struct platform_device *ci_pdev; struct clk *clk; @@ -90,12 +89,12 @@ static int ci13xxx_imx_probe(struct platform_device *pdev) { struct ci13xxx_imx_data *data; struct ci13xxx_platform_data *pdata; - struct platform_device *plat_ci, *phy_pdev; - struct device_node *phy_np; + struct platform_device *plat_ci; struct resource *res; struct regulator *reg_vbus; struct pinctrl *pinctrl; int ret; + struct usb_phy *phy; if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL) && !usbmisc_ops) @@ -147,19 +146,20 @@ static int ci13xxx_imx_probe(struct platform_device *pdev) return ret; } - phy_np = of_parse_phandle(pdev->dev.of_node, "fsl,usbphy", 0); - if (phy_np) { - data->phy_np = phy_np; - phy_pdev = of_find_device_by_node(phy_np); - if (phy_pdev) { - struct usb_phy *phy; - phy = pdev_to_phy(phy_pdev); - if (phy && - try_module_get(phy_pdev->dev.driver->owner)) { - usb_phy_init(phy); - data->phy = phy; - } + phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0); + if (PTR_ERR(phy) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_clk; + } + + if (!IS_ERR(phy)) { + ret = usb_phy_init(phy); + if (ret) { + dev_err(&pdev->dev, "unable to init phy: %d\n", ret); + goto err_clk; } + + data->phy = phy; } /* we only support host now, so enable vbus here */ @@ -170,7 +170,7 @@ static int ci13xxx_imx_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to enable vbus regulator, err=%d\n", ret); - goto put_np; + goto err_clk; } data->reg_vbus = reg_vbus; } else { @@ -222,9 +222,7 @@ static int ci13xxx_imx_probe(struct platform_device *pdev) err: if (reg_vbus) regulator_disable(reg_vbus); -put_np: - if (phy_np) - of_node_put(phy_np); +err_clk: clk_disable_unprepare(data->clk); return ret; } @@ -244,8 +242,6 @@ static int ci13xxx_imx_remove(struct platform_device *pdev) module_put(data->phy->dev->driver->owner); } - of_node_put(data->phy_np); - clk_disable_unprepare(data->clk); platform_set_drvdata(pdev, NULL);