From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/mach-omap2/common-board-devices.c | 103 ++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 kernel/arch/arm/mach-omap2/common-board-devices.c (limited to 'kernel/arch/arm/mach-omap2/common-board-devices.c') diff --git a/kernel/arch/arm/mach-omap2/common-board-devices.c b/kernel/arch/arm/mach-omap2/common-board-devices.c new file mode 100644 index 000000000..d246efd9f --- /dev/null +++ b/kernel/arch/arm/mach-omap2/common-board-devices.c @@ -0,0 +1,103 @@ +/* + * common-board-devices.c + * + * Copyright (C) 2011 CompuLab, Ltd. + * Author: Mike Rapoport + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include +#include +#include + +#include + +#include "common.h" +#include "common-board-devices.h" + +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \ + defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) +static struct omap2_mcspi_device_config ads7846_mcspi_config = { + .turbo_mode = 0, +}; + +static struct ads7846_platform_data ads7846_config = { + .x_max = 0x0fff, + .y_max = 0x0fff, + .x_plate_ohms = 180, + .pressure_max = 255, + .debounce_max = 10, + .debounce_tol = 3, + .debounce_rep = 1, + .gpio_pendown = -EINVAL, + .keep_vref_on = 1, +}; + +static struct spi_board_info ads7846_spi_board_info __initdata = { + .modalias = "ads7846", + .bus_num = -EINVAL, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &ads7846_mcspi_config, + .irq = -EINVAL, + .platform_data = &ads7846_config, +}; + +void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce, + struct ads7846_platform_data *board_pdata) +{ + struct spi_board_info *spi_bi = &ads7846_spi_board_info; + int err; + + /* + * If a board defines get_pendown_state() function, request the pendown + * GPIO and set the GPIO debounce time. + * If a board does not define the get_pendown_state() function, then + * the ads7846 driver will setup the pendown GPIO itself. + */ + if (board_pdata && board_pdata->get_pendown_state) { + err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown"); + if (err) { + pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err); + return; + } + + if (gpio_debounce) + gpio_set_debounce(gpio_pendown, gpio_debounce); + + gpio_export(gpio_pendown, 0); + } + + spi_bi->bus_num = bus_num; + spi_bi->irq = gpio_to_irq(gpio_pendown); + + ads7846_config.gpio_pendown = gpio_pendown; + + if (board_pdata) { + board_pdata->gpio_pendown = gpio_pendown; + board_pdata->gpio_pendown_debounce = gpio_debounce; + spi_bi->platform_data = board_pdata; + } + + spi_register_board_info(&ads7846_spi_board_info, 1); +} +#else +void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce, + struct ads7846_platform_data *board_pdata) +{ +} +#endif -- cgit 1.2.3-korg