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ARM: sa1100/simpad: switch simpad CF to use gpiod APIs

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Switch simpad's CF implementation to use the gpiod APIs.  The inverted
detection is handled using gpiolib's native inversion abilities.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2016-08-31 08:49:48 +01:00
parent b51af86559
commit 64b2f129c3
2 changed files with 14 additions and 9 deletions
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11
arch/arm/mach-sa1100/simpad.c
View File

@ -4,6 +4,7 @@
*/
#include <linux/module.h>
#include <linux/gpio/machine.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
@ -364,6 +365,15 @@ static struct platform_device *devices[] __initdata = {
&simpad_i2c,
};
/* Compact Flash */
static struct gpiod_lookup_table simpad_cf_gpio_table = {
.dev_id = "sa11x0-pcmcia",
.table = {
GPIO_LOOKUP("gpio", GPIO_CF_IRQ, "cf-ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", GPIO_CF_CD, "cf-detect", GPIO_ACTIVE_HIGH),
{ },
},
};
static int __init simpad_init(void)
@ -385,6 +395,7 @@ static int __init simpad_init(void)
pm_power_off = simpad_power_off;
sa11x0_register_pcmcia(-1, &simpad_cf_gpio_table);
sa11x0_ppc_configure_mcp();
sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));

12
drivers/pcmcia/sa1100_simpad.c
View File

@ -12,7 +12,6 @@
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/simpad.h>
#include "sa1100_generic.h"
@ -21,12 +20,10 @@ static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
skt->stat[SOC_STAT_CD].gpio = GPIO_CF_CD;
skt->stat[SOC_STAT_CD].name = "CF_CD";
skt->stat[SOC_STAT_RDY].gpio = GPIO_CF_IRQ;
skt->stat[SOC_STAT_RDY].name = "CF_RDY";
skt->stat[SOC_STAT_CD].name = "cf-detect";
skt->stat[SOC_STAT_RDY].name = "cf-ready";
return 0;
return soc_pcmcia_request_gpiods(skt);
}
static void simpad_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
@ -42,9 +39,6 @@ simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
{
long cs3reg = simpad_get_cs3_ro();
/* the detect signal is inverted - fix that up here */
state->detect = !state->detect;
state->bvd1 = 1; /* Might be cs3reg & PCMCIA_BVD1 */
state->bvd2 = 1; /* Might be cs3reg & PCMCIA_BVD2 */