projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 072eb693 CR |
1 | /* |
| 2 | * Abilis Systems TB10x platform initialisation | |
| 3 | * | |
| 4 | * Copyright (C) Abilis Systems 2012 | |
| 5 | * | |
| 6 | * Author: Christian Ruppert <christian.ruppert@abilis.com> | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 20 | */ | |
| 21 | ||
| 22 | ||
| 23 | #include <linux/init.h> | |
| 24 | #include <linux/of_platform.h> | |
| 25 | #include <linux/clk-provider.h> | |
| 26 | #include <linux/pinctrl/consumer.h> | |
| 27 | ||
| 28 | #include <asm/mach_desc.h> | |
| 29 | ||
| 30 | ||
| 31 | static void __init tb10x_platform_init(void) | |
| 32 | { | |
| 33 | of_clk_init(NULL); | |
| 34 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); | |
| 35 | } | |
| 36 | ||
| 37 | static void __init tb10x_platform_late_init(void) | |
| 38 | { | |
| 39 | struct device_node *dn; | |
| 40 | ||
| 41 | /* | |
| 42 | * Pinctrl documentation recommends setting up the iomux here for | |
| 43 | * all modules which don't require control over the pins themselves. | |
| 44 | * Modules which need this kind of assistance are compatible with | |
| 45 | * "abilis,simple-pinctrl", i.e. we can easily iterate over them. | |
| 46 | * TODO: Does this recommended method work cleanly with pins required | |
| 47 | * by modules? | |
| 48 | */ | |
| 49 | for_each_compatible_node(dn, NULL, "abilis,simple-pinctrl") { | |
| 50 | struct platform_device *pd = of_find_device_by_node(dn); | |
| 51 | struct pinctrl *pctl; | |
| 52 | ||
| 53 | pctl = pinctrl_get_select(&pd->dev, "abilis,simple-default"); | |
| 54 | if (IS_ERR(pctl)) { | |
| 55 | int ret = PTR_ERR(pctl); | |
| 56 | dev_err(&pd->dev, "Could not set up pinctrl: %d\n", | |
| 57 | ret); | |
| 58 | } | |
| 59 | } | |
| 60 | } | |
| 61 | ||
| 62 | static const char *tb10x_compat[] __initdata = { | |
| 63 | "abilis,arc-tb10x", | |
| 64 | NULL, | |
| 65 | }; | |
| 66 | ||
| 67 | MACHINE_START(TB10x, "tb10x") | |
| 68 | .dt_compat = tb10x_compat, | |
| 69 | .init_machine = tb10x_platform_init, | |
| 70 | .init_late = tb10x_platform_late_init, | |
| 71 | MACHINE_END |