From patchwork Mon Mar 18 12:29:39 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Venu Byravarasu X-Patchwork-Id: 228484 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4FEB42C00C3 for ; Mon, 18 Mar 2013 23:34:38 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752222Ab3CRMdp (ORCPT ); Mon, 18 Mar 2013 08:33:45 -0400 Received: from hqemgate03.nvidia.com ([216.228.121.140]:6431 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751810Ab3CRMdn (ORCPT ); Mon, 18 Mar 2013 08:33:43 -0400 Received: from hqnvupgp08.nvidia.com (Not Verified[216.228.121.13]) by hqemgate03.nvidia.com id ; Mon, 18 Mar 2013 05:39:00 -0700 Received: from hqemhub02.nvidia.com ([172.17.108.22]) by hqnvupgp08.nvidia.com (PGP Universal service); Mon, 18 Mar 2013 05:26:38 -0700 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Mon, 18 Mar 2013 05:26:38 -0700 Received: from localhost.localdomain (172.20.144.16) by hqemhub02.nvidia.com (172.20.150.31) with Microsoft SMTP Server (TLS) id 8.3.298.1; Mon, 18 Mar 2013 05:33:40 -0700 From: Venu Byravarasu To: , , CC: , , , , , Venu Byravarasu Subject: [PATCH 5/7] usb: phy: tegra: get ULPI reset GPIO info using DT. Date: Mon, 18 Mar 2013 17:59:39 +0530 Message-ID: <1363609781-4045-6-git-send-email-vbyravarasu@nvidia.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1363609781-4045-1-git-send-email-vbyravarasu@nvidia.com> References: <1363609781-4045-1-git-send-email-vbyravarasu@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org As GPIO information is avail through DT, used it to get Tegra ULPI reset GPIO number. Added a new member to tegra_usb_phy structure to store this number. Signed-off-by: Venu Byravarasu --- drivers/usb/phy/tegra_usb_phy.c | 25 +++++++++++-------------- include/linux/usb/tegra_usb_phy.h | 1 + 2 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c index b5b2037..29c5ac4 100644 --- a/drivers/usb/phy/tegra_usb_phy.c +++ b/drivers/usb/phy/tegra_usb_phy.c @@ -541,11 +541,10 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy) int ret; unsigned long val; void __iomem *base = phy->regs; - struct tegra_ulpi_config *config = phy->config; - gpio_direction_output(config->reset_gpio, 0); + gpio_direction_output(phy->reset_gpio, 0); msleep(5); - gpio_direction_output(config->reset_gpio, 1); + gpio_direction_output(phy->reset_gpio, 1); clk_prepare_enable(phy->clk); msleep(1); @@ -603,10 +602,8 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy) static int ulpi_phy_power_off(struct tegra_usb_phy *phy) { - struct tegra_ulpi_config *config = phy->config; - clk_disable(phy->clk); - return gpio_direction_output(config->reset_gpio, 0); + return gpio_direction_output(phy->reset_gpio, 0); } static int tegra_phy_init(struct usb_phy *x) @@ -622,18 +619,18 @@ static int tegra_phy_init(struct usb_phy *x) pr_err("%s: can't get ulpi clock\n", __func__); return PTR_ERR(phy->clk); } - if (!gpio_is_valid(ulpi_config->reset_gpio)) - ulpi_config->reset_gpio = - of_get_named_gpio(phy->dev->of_node, - "nvidia,phy-reset-gpio", 0); - if (!gpio_is_valid(ulpi_config->reset_gpio)) { + + phy->reset_gpio = + of_get_named_gpio(phy->dev->of_node, + "nvidia,phy-reset-gpio", 0); + if (!gpio_is_valid(phy->reset_gpio)) { pr_err("%s: invalid reset gpio: %d\n", __func__, - ulpi_config->reset_gpio); + phy->reset_gpio); err = -EINVAL; goto err1; } - gpio_request(ulpi_config->reset_gpio, "ulpi_phy_reset_b"); - gpio_direction_output(ulpi_config->reset_gpio, 0); + gpio_request(phy->reset_gpio, "ulpi_phy_reset_b"); + gpio_direction_output(phy->reset_gpio, 0); phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0); phy->ulpi->io_priv = phy->regs + ULPI_VIEWPORT; } else { diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h index a7af923..6cfb8f1 100644 --- a/include/linux/usb/tegra_usb_phy.h +++ b/include/linux/usb/tegra_usb_phy.h @@ -62,6 +62,7 @@ struct tegra_usb_phy { struct device *dev; bool is_legacy_phy; bool is_ulpi_phy; + int reset_gpio; }; struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,