diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-18 12:32:37 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-02-04 14:32:23 +0000 |
| commit | bbb58a1210c6fdc68b09f7b9e12096c2a1886aa1 (patch) | |
| tree | 311514f4b7b7e757e135eeedb9cf7f5bab6efafc /drivers/pcmcia | |
| parent | f793e3ab9f4cfbdba6269c8a6c522c5d665289b1 (diff) | |
| download | lwn-bbb58a1210c6fdc68b09f7b9e12096c2a1886aa1.tar.gz lwn-bbb58a1210c6fdc68b09f7b9e12096c2a1886aa1.zip | |
PCMCIA: sa11x0: cerf: convert reset handling to use GPIO subsystem
Rather than accessing GPSR and GPCR directly, use the GPIO subsystem
instead.
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/sa1100_cerf.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/pcmcia/sa1100_cerf.c b/drivers/pcmcia/sa1100_cerf.c index 9d0424ea9a4f..50df0e682b68 100644 --- a/drivers/pcmcia/sa1100_cerf.c +++ b/drivers/pcmcia/sa1100_cerf.c @@ -10,6 +10,7 @@ #include <linux/device.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/gpio.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -21,6 +22,12 @@ static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { + int ret; + + ret = gpio_request_one(CERF_GPIO_CF_RESET, GPIOF_OUT_INIT_LOW, "CF_RESET"); + if (ret) + return ret; + skt->stat[SOC_STAT_CD].gpio = CERF_GPIO_CF_CD; skt->stat[SOC_STAT_CD].name = "CF_CD"; skt->stat[SOC_STAT_BVD1].gpio = CERF_GPIO_CF_BVD1; @@ -33,6 +40,11 @@ static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt) return 0; } +static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) +{ + gpio_free(CERF_GPIO_CF_RESET); +} + static void cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { @@ -57,11 +69,7 @@ cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, return -1; } - if (state->flags & SS_RESET) { - GPSR = CERF_GPIO_CF_RESET; - } else { - GPCR = CERF_GPIO_CF_RESET; - } + gpio_set_value(CERF_GPIO_CF_RESET, !!(state->flags & SS_RESET)); return 0; } @@ -69,6 +77,7 @@ cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, static struct pcmcia_low_level cerf_pcmcia_ops = { .owner = THIS_MODULE, .hw_init = cerf_pcmcia_hw_init, + .hw_shutdown = cerf_pcmcia_hw_shutdown, .socket_state = cerf_pcmcia_socket_state, .configure_socket = cerf_pcmcia_configure_socket, }; |