// SPDX-License-Identifier: GPL-2.0-only /* * linux/drivers/pcmcia/pxa2xx_vpac270.c * * Driver for Voipac PXA270 PCMCIA and CF sockets * * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com> */ #include <linux/gpio.h> #include <linux/module.h> #include <linux/platform_device.h> #include <asm/mach-types.h> #include <mach/vpac270.h> #include "soc_common.h" static struct gpio vpac270_pcmcia_gpios[] = { { GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" }, { GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" }, }; static struct gpio vpac270_cf_gpios[] = { { GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" }, }; static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { int ret; if (skt->nr == 0) { ret = gpio_request_array(vpac270_pcmcia_gpios, ARRAY_SIZE(vpac270_pcmcia_gpios)); skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD; skt->stat[SOC_STAT_CD].name = "PCMCIA CD"; skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY; skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; } else { ret = gpio_request_array(vpac270_cf_gpios, ARRAY_SIZE(vpac270_cf_gpios)); skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD; skt->stat[SOC_STAT_CD].name = "CF CD"; skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY; skt->stat[SOC_STAT_RDY].name = "CF Ready"; } return ret; } static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { if (skt->nr == 0) gpio_free_array(vpac270_pcmcia_gpios, ARRAY_SIZE(vpac270_pcmcia_gpios)); else gpio_free_array(vpac270_cf_gpios, ARRAY_SIZE(vpac270_cf_gpios)); } static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { state->vs_3v = 1; state->vs_Xv = 0; } static int vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { if (skt->nr == 0) { gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET, (state->flags & SS_RESET)); gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN, !(state->Vcc == 33 || state->Vcc == 50)); } else { gpio_set_value(GPIO16_VPAC270_CF_RESET, (state->flags & SS_RESET)); } return 0; } static struct pcmcia_low_level vpac270_pcmcia_ops = { .owner = THIS_MODULE, .first = 0, .nr = 2, .hw_init = vpac270_pcmcia_hw_init, .hw_shutdown = vpac270_pcmcia_hw_shutdown, .socket_state = vpac270_pcmcia_socket_state, .configure_socket = vpac270_pcmcia_configure_socket, }; static struct platform_device *vpac270_pcmcia_device; static int __init vpac270_pcmcia_init(void) { int ret; if (!machine_is_vpac270()) return -ENODEV; vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); if (!vpac270_pcmcia_device) return -ENOMEM; ret = platform_device_add_data(vpac270_pcmcia_device, &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops)); if (!ret) ret = platform_device_add(vpac270_pcmcia_device); if (ret) platform_device_put(vpac270_pcmcia_device); return ret; } static void __exit vpac270_pcmcia_exit(void) { platform_device_unregister(vpac270_pcmcia_device); } module_init(vpac270_pcmcia_init); module_exit(vpac270_pcmcia_exit); MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270"); MODULE_ALIAS("platform:pxa2xx-pcmcia"); MODULE_LICENSE("GPL");