Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
6d341675 MV |
2 | /* |
3 | * linux/drivers/pcmcia/pxa2xx_palmld.c | |
4 | * | |
5 | * Driver for Palm LifeDrive PCMCIA | |
6 | * | |
7 | * Copyright (C) 2006 Alex Osborne <ato@meshy.org> | |
9ed3fbf1 | 8 | * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com> |
6d341675 MV |
9 | */ |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/platform_device.h> | |
13 | #include <linux/gpio.h> | |
14 | ||
15 | #include <asm/mach-types.h> | |
16 | #include <mach/palmld.h> | |
17 | #include "soc_common.h" | |
18 | ||
2070417d MV |
19 | static struct gpio palmld_pcmcia_gpios[] = { |
20 | { GPIO_NR_PALMLD_PCMCIA_POWER, GPIOF_INIT_LOW, "PCMCIA Power" }, | |
21 | { GPIO_NR_PALMLD_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, | |
2070417d MV |
22 | }; |
23 | ||
6d341675 MV |
24 | static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
25 | { | |
26 | int ret; | |
27 | ||
2070417d MV |
28 | ret = gpio_request_array(palmld_pcmcia_gpios, |
29 | ARRAY_SIZE(palmld_pcmcia_gpios)); | |
6d341675 | 30 | |
a9bb5a4b RK |
31 | skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMLD_PCMCIA_READY; |
32 | skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; | |
6d341675 | 33 | |
6d341675 MV |
34 | return ret; |
35 | } | |
36 | ||
37 | static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
38 | { | |
2070417d | 39 | gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios)); |
6d341675 MV |
40 | } |
41 | ||
42 | static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |
43 | struct pcmcia_state *state) | |
44 | { | |
45 | state->detect = 1; /* always inserted */ | |
6d341675 MV |
46 | state->vs_3v = 1; |
47 | state->vs_Xv = 0; | |
48 | } | |
49 | ||
50 | static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
51 | const socket_state_t *state) | |
52 | { | |
53 | gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1); | |
54 | gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET, | |
55 | !!(state->flags & SS_RESET)); | |
56 | ||
57 | return 0; | |
58 | } | |
59 | ||
6d341675 MV |
60 | static struct pcmcia_low_level palmld_pcmcia_ops = { |
61 | .owner = THIS_MODULE, | |
62 | ||
d66ea8d4 MV |
63 | .first = 1, |
64 | .nr = 1, | |
6d341675 MV |
65 | |
66 | .hw_init = palmld_pcmcia_hw_init, | |
67 | .hw_shutdown = palmld_pcmcia_hw_shutdown, | |
68 | ||
69 | .socket_state = palmld_pcmcia_socket_state, | |
70 | .configure_socket = palmld_pcmcia_configure_socket, | |
6d341675 MV |
71 | }; |
72 | ||
73 | static struct platform_device *palmld_pcmcia_device; | |
74 | ||
75 | static int __init palmld_pcmcia_init(void) | |
76 | { | |
77 | int ret; | |
78 | ||
79 | if (!machine_is_palmld()) | |
80 | return -ENODEV; | |
81 | ||
82 | palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | |
83 | if (!palmld_pcmcia_device) | |
84 | return -ENOMEM; | |
85 | ||
86 | ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops, | |
87 | sizeof(palmld_pcmcia_ops)); | |
88 | ||
89 | if (!ret) | |
90 | ret = platform_device_add(palmld_pcmcia_device); | |
91 | ||
92 | if (ret) | |
93 | platform_device_put(palmld_pcmcia_device); | |
94 | ||
95 | return ret; | |
96 | } | |
97 | ||
98 | static void __exit palmld_pcmcia_exit(void) | |
99 | { | |
100 | platform_device_unregister(palmld_pcmcia_device); | |
101 | } | |
102 | ||
103 | module_init(palmld_pcmcia_init); | |
104 | module_exit(palmld_pcmcia_exit); | |
105 | ||
106 | MODULE_AUTHOR("Alex Osborne <ato@meshy.org>," | |
107 | " Marek Vasut <marek.vasut@gmail.com>"); | |
108 | MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive"); | |
109 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | |
110 | MODULE_LICENSE("GPL"); |