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110 lines
2.6 KiB
110 lines
2.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* linux/drivers/pcmcia/pxa2xx_palmld.c |
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* |
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* Driver for Palm LifeDrive PCMCIA |
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* |
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* Copyright (C) 2006 Alex Osborne <[email protected]> |
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* Copyright (C) 2007-2011 Marek Vasut <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/gpio.h> |
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#include <asm/mach-types.h> |
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#include <mach/palmld.h> |
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#include "soc_common.h" |
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static struct gpio palmld_pcmcia_gpios[] = { |
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{ GPIO_NR_PALMLD_PCMCIA_POWER, GPIOF_INIT_LOW, "PCMCIA Power" }, |
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{ GPIO_NR_PALMLD_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, |
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}; |
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static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
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{ |
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int ret; |
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ret = gpio_request_array(palmld_pcmcia_gpios, |
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ARRAY_SIZE(palmld_pcmcia_gpios)); |
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skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMLD_PCMCIA_READY; |
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skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; |
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return ret; |
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} |
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static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) |
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{ |
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gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios)); |
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} |
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static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt, |
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struct pcmcia_state *state) |
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{ |
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state->detect = 1; /* always inserted */ |
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state->vs_3v = 1; |
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state->vs_Xv = 0; |
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} |
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static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, |
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const socket_state_t *state) |
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{ |
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gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1); |
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gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET, |
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!!(state->flags & SS_RESET)); |
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return 0; |
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} |
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static struct pcmcia_low_level palmld_pcmcia_ops = { |
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.owner = THIS_MODULE, |
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.first = 1, |
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.nr = 1, |
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.hw_init = palmld_pcmcia_hw_init, |
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.hw_shutdown = palmld_pcmcia_hw_shutdown, |
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.socket_state = palmld_pcmcia_socket_state, |
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.configure_socket = palmld_pcmcia_configure_socket, |
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}; |
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static struct platform_device *palmld_pcmcia_device; |
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static int __init palmld_pcmcia_init(void) |
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{ |
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int ret; |
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if (!machine_is_palmld()) |
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return -ENODEV; |
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palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); |
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if (!palmld_pcmcia_device) |
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return -ENOMEM; |
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ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops, |
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sizeof(palmld_pcmcia_ops)); |
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if (!ret) |
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ret = platform_device_add(palmld_pcmcia_device); |
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if (ret) |
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platform_device_put(palmld_pcmcia_device); |
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return ret; |
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} |
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static void __exit palmld_pcmcia_exit(void) |
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{ |
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platform_device_unregister(palmld_pcmcia_device); |
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} |
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module_init(palmld_pcmcia_init); |
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module_exit(palmld_pcmcia_exit); |
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MODULE_AUTHOR("Alex Osborne <[email protected]>," |
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" Marek Vasut <[email protected]>"); |
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MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive"); |
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MODULE_ALIAS("platform:pxa2xx-pcmcia"); |
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MODULE_LICENSE("GPL");
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