2 * arch/arm/mach-tegra/board-harmony-pcie.c
4 * Copyright (C) 2010 CompuLab, Ltd.
5 * Mike Rapoport <mike@compulab.co.il>
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 #include <linux/kernel.h>
19 #include <linux/gpio.h>
20 #include <linux/err.h>
21 #include <linux/regulator/consumer.h>
23 #include <asm/mach-types.h>
26 #include "board-harmony.h"
28 #ifdef CONFIG_TEGRA_PCI
30 int __init
harmony_pcie_init(void)
32 struct regulator
*regulator
= NULL
;
35 err
= gpio_request(TEGRA_GPIO_EN_VDD_1V05_GPIO
, "EN_VDD_1V05");
39 gpio_direction_output(TEGRA_GPIO_EN_VDD_1V05_GPIO
, 1);
41 regulator
= regulator_get(NULL
, "pex_clk");
42 if (IS_ERR_OR_NULL(regulator
))
45 regulator_enable(regulator
);
47 err
= tegra_pcie_init(true, true);
54 regulator_disable(regulator
);
55 regulator_put(regulator
);
57 gpio_free(TEGRA_GPIO_EN_VDD_1V05_GPIO
);
62 static int __init
harmony_pcie_initcall(void)
64 if (!machine_is_harmony())
67 return harmony_pcie_init();
70 /* PCI should be initialized after I2C, mfd and regulators */
71 subsys_initcall_sync(harmony_pcie_initcall
);