Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

PCMCIA: sa11x0: h3600: convert to use new irq/gpio management

Browse source 
Convert iPAQ socket driver to use the new irq/gpio management.  As
this already uses the GPIO subsystem, these changes are localized
to just the PCMCIA directory.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2012-01-13 23:07:26 +00:00
parent b1d8a5f917
commit 65474b457c
1 changed files with 15 additions and 80 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

95
drivers/pcmcia/sa1100_h3600.c
View file

@ -19,36 +19,20 @@
#include "sa1100_generic.h"
static struct pcmcia_irqs irqs[] = {
{ .sock = 0, .str = "PCMCIA CD0" }, /* .irq will be filled later */
{ .sock = 1, .str = "PCMCIA CD1" }
};
static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int err;
switch (skt->nr) {
case 0:
err = gpio_request(H3XXX_GPIO_PCMCIA_IRQ0, "PCMCIA IRQ0");
if (err)
goto err00;
err = gpio_direction_input(H3XXX_GPIO_PCMCIA_IRQ0);
if (err)
goto err01;
skt->socket.pci_irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_IRQ0);
err = gpio_request(H3XXX_GPIO_PCMCIA_CD0, "PCMCIA CD0");
if (err)
goto err01;
err = gpio_direction_input(H3XXX_GPIO_PCMCIA_CD0);
if (err)
goto err02;
irqs[0].irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_CD0);
skt->stat[SOC_STAT_CD].gpio = H3XXX_GPIO_PCMCIA_CD0;
skt->stat[SOC_STAT_CD].name = "PCMCIA CD0";
skt->stat[SOC_STAT_RDY].gpio = H3XXX_GPIO_PCMCIA_IRQ0;
skt->stat[SOC_STAT_RDY].name = "PCMCIA IRQ0";
err = gpio_request(H3XXX_EGPIO_OPT_NVRAM_ON, "OPT NVRAM ON");
if (err)
goto err02;
goto err01;
err = gpio_direction_output(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
if (err)
goto err03;
@ -68,32 +52,14 @@ static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
if (err)
goto err05;
err = gpio_direction_output(H3XXX_EGPIO_CARD_RESET, 0);
if (err)
goto err06;
err = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
if (err)
goto err06;
break;
case 1:
err = gpio_request(H3XXX_GPIO_PCMCIA_IRQ1, "PCMCIA IRQ1");
if (err)
goto err10;
err = gpio_direction_input(H3XXX_GPIO_PCMCIA_IRQ1);
if (err)
goto err11;
skt->socket.pci_irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_IRQ1);
err = gpio_request(H3XXX_GPIO_PCMCIA_CD1, "PCMCIA CD1");
if (err)
goto err11;
err = gpio_direction_input(H3XXX_GPIO_PCMCIA_CD1);
if (err)
goto err12;
irqs[1].irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_CD1);
err = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
if (err)
goto err12;
skt->stat[SOC_STAT_CD].gpio = H3XXX_GPIO_PCMCIA_CD1;
skt->stat[SOC_STAT_CD].name = "PCMCIA CD1";
skt->stat[SOC_STAT_RDY].gpio = H3XXX_GPIO_PCMCIA_IRQ1;
skt->stat[SOC_STAT_RDY].name = "PCMCIA IRQ1";
break;
}
return 0;
@ -102,19 +68,12 @@ err06: gpio_free(H3XXX_EGPIO_CARD_RESET);
err05: gpio_free(H3XXX_EGPIO_OPT_RESET);
err04: gpio_free(H3XXX_EGPIO_OPT_ON);
err03: gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
err02: gpio_free(H3XXX_GPIO_PCMCIA_CD0);
err01: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
err00: return err;
err12: gpio_free(H3XXX_GPIO_PCMCIA_CD0);
err11: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
err10: return err;
return err;
}
static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
switch (skt->nr) {
case 0:
/* Disable CF bus: */
@ -126,12 +85,8 @@ static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
gpio_free(H3XXX_EGPIO_OPT_RESET);
gpio_free(H3XXX_EGPIO_OPT_ON);
gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
gpio_free(H3XXX_GPIO_PCMCIA_CD0);
gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
break;
case 1:
gpio_free(H3XXX_GPIO_PCMCIA_CD1);
gpio_free(H3XXX_GPIO_PCMCIA_IRQ1);
break;
}
}
@ -139,27 +94,11 @@ static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
static void
h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
switch (skt->nr) {
case 0:
state->detect = !gpio_get_value(H3XXX_GPIO_PCMCIA_CD0);
state->ready = !!gpio_get_value(H3XXX_GPIO_PCMCIA_IRQ0);
state->bvd1 = 0;
state->bvd2 = 0;
state->wrprot = 0; /* Not available on H3600. */
state->vs_3v = 0;
state->vs_Xv = 0;
break;
case 1:
state->detect = !gpio_get_value(H3XXX_GPIO_PCMCIA_CD1);
state->ready = !!gpio_get_value(H3XXX_GPIO_PCMCIA_IRQ1);
state->bvd1 = 0;
state->bvd2 = 0;
state->wrprot = 0; /* Not available on H3600. */
state->vs_3v = 0;
state->vs_Xv = 0;
break;
}
state->bvd1 = 0;
state->bvd2 = 0;
state->wrprot = 0; /* Not available on H3600. */
state->vs_3v = 0;
state->vs_Xv = 0;
}
static int
@ -186,14 +125,10 @@ static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
gpio_set_value(H3XXX_EGPIO_OPT_RESET, 0);
msleep(10);
soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
/*
* FIXME: This doesn't fit well. We don't have the mechanism in
* the generic PCMCIA layer to deal with the idea of two sockets