summaryrefslogtreecommitdiff
path: root/drivers/pcmcia/sa1100_nanoengine.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pcmcia/sa1100_nanoengine.c')
-rw-r--r--drivers/pcmcia/sa1100_nanoengine.c132
1 files changed, 23 insertions, 109 deletions
diff --git a/drivers/pcmcia/sa1100_nanoengine.c b/drivers/pcmcia/sa1100_nanoengine.c
index 93b9c9ba57c3..35c30ff41e81 100644
--- a/drivers/pcmcia/sa1100_nanoengine.c
+++ b/drivers/pcmcia/sa1100_nanoengine.c
@@ -19,6 +19,7 @@
*/
#include <linux/device.h>
#include <linux/errno.h>
+#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/init.h>
@@ -34,43 +35,23 @@
#include "sa1100_generic.h"
-static struct pcmcia_irqs irqs_skt0[] = {
- /* socket, IRQ, name */
- { 0, NANOENGINE_IRQ_GPIO_PC_CD0, "PC CD0" },
-};
-
-static struct pcmcia_irqs irqs_skt1[] = {
- /* socket, IRQ, name */
- { 1, NANOENGINE_IRQ_GPIO_PC_CD1, "PC CD1" },
-};
-
struct nanoengine_pins {
- unsigned input_pins;
unsigned output_pins;
unsigned clear_outputs;
- unsigned transition_pins;
- unsigned pci_irq;
- struct pcmcia_irqs *pcmcia_irqs;
- unsigned pcmcia_irqs_size;
+ int gpio_rst;
+ int gpio_cd;
+ int gpio_rdy;
};
static struct nanoengine_pins nano_skts[] = {
{
- .input_pins = GPIO_PC_READY0 | GPIO_PC_CD0,
- .output_pins = GPIO_PC_RESET0,
- .clear_outputs = GPIO_PC_RESET0,
- .transition_pins = NANOENGINE_IRQ_GPIO_PC_CD0,
- .pci_irq = NANOENGINE_IRQ_GPIO_PC_READY0,
- .pcmcia_irqs = irqs_skt0,
- .pcmcia_irqs_size = ARRAY_SIZE(irqs_skt0)
+ .gpio_rst = GPIO_PC_RESET0,
+ .gpio_cd = GPIO_PC_CD0,
+ .gpio_rdy = GPIO_PC_READY0,
}, {
- .input_pins = GPIO_PC_READY1 | GPIO_PC_CD1,
- .output_pins = GPIO_PC_RESET1,
- .clear_outputs = GPIO_PC_RESET1,
- .transition_pins = NANOENGINE_IRQ_GPIO_PC_CD1,
- .pci_irq = NANOENGINE_IRQ_GPIO_PC_READY1,
- .pcmcia_irqs = irqs_skt1,
- .pcmcia_irqs_size = ARRAY_SIZE(irqs_skt1)
+ .gpio_rst = GPIO_PC_RESET1,
+ .gpio_cd = GPIO_PC_CD1,
+ .gpio_rdy = GPIO_PC_READY1,
}
};
@@ -79,58 +60,38 @@ unsigned num_nano_pcmcia_sockets = ARRAY_SIZE(nano_skts);
static int nanoengine_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
unsigned i = skt->nr;
+ int ret;
if (i >= num_nano_pcmcia_sockets)
return -ENXIO;
- GPDR &= ~nano_skts[i].input_pins;
- GPDR |= nano_skts[i].output_pins;
- GPCR = nano_skts[i].clear_outputs;
- irq_set_irq_type(nano_skts[i].transition_pins, IRQ_TYPE_EDGE_BOTH);
- skt->socket.pci_irq = nano_skts[i].pci_irq;
+ ret = gpio_request_one(nano_skts[i].gpio_rst, GPIOF_OUT_INIT_LOW,
+ i ? "PC RST1" : "PC RST0");
+ if (ret)
+ return ret;
+
+ skt->stat[SOC_STAT_CD].gpio = nano_skts[i].gpio_cd;
+ skt->stat[SOC_STAT_CD].name = i ? "PC CD1" : "PC CD0";
+ skt->stat[SOC_STAT_RDY].gpio = nano_skts[i].gpio_rdy;
+ skt->stat[SOC_STAT_RDY].name = i ? "PC RDY1" : "PC RDY0";
- return soc_pcmcia_request_irqs(skt,
- nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
+ return 0;
}
-/*
- * Release all resources.
- */
static void nanoengine_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
- unsigned i = skt->nr;
-
- if (i >= num_nano_pcmcia_sockets)
- return;
-
- soc_pcmcia_free_irqs(skt,
- nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
+ gpio_free(nano_skts[skt->nr].gpio_rst);
}
static int nanoengine_pcmcia_configure_socket(
struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
- unsigned reset;
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return -ENXIO;
- switch (i) {
- case 0:
- reset = GPIO_PC_RESET0;
- break;
- case 1:
- reset = GPIO_PC_RESET1;
- break;
- default:
- return -ENXIO;
- }
-
- if (state->flags & SS_RESET)
- GPSR = reset;
- else
- GPCR = reset;
+ gpio_set_value(nano_skts[skt->nr].gpio_rst, !!(state->flags & SS_RESET));
return 0;
}
@@ -138,62 +99,17 @@ static int nanoengine_pcmcia_configure_socket(
static void nanoengine_pcmcia_socket_state(
struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
- unsigned long levels = GPLR;
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return;
- memset(state, 0, sizeof(struct pcmcia_state));
- switch (i) {
- case 0:
- state->ready = (levels & GPIO_PC_READY0) ? 1 : 0;
- state->detect = !(levels & GPIO_PC_CD0) ? 1 : 0;
- break;
- case 1:
- state->ready = (levels & GPIO_PC_READY1) ? 1 : 0;
- state->detect = !(levels & GPIO_PC_CD1) ? 1 : 0;
- break;
- default:
- return;
- }
state->bvd1 = 1;
state->bvd2 = 1;
- state->wrprot = 0; /* Not available */
state->vs_3v = 1; /* Can only apply 3.3V */
state->vs_Xv = 0;
}
-/*
- * Enable card status IRQs on (re-)initialisation. This can
- * be called at initialisation, power management event, or
- * pcmcia event.
- */
-static void nanoengine_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
-{
- unsigned i = skt->nr;
-
- if (i >= num_nano_pcmcia_sockets)
- return;
-
- soc_pcmcia_enable_irqs(skt,
- nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
-}
-
-/*
- * Disable card status IRQs on suspend.
- */
-static void nanoengine_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
-{
- unsigned i = skt->nr;
-
- if (i >= num_nano_pcmcia_sockets)
- return;
-
- soc_pcmcia_disable_irqs(skt,
- nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
-}
-
static struct pcmcia_low_level nanoengine_pcmcia_ops = {
.owner = THIS_MODULE,
@@ -202,8 +118,6 @@ static struct pcmcia_low_level nanoengine_pcmcia_ops = {
.configure_socket = nanoengine_pcmcia_configure_socket,
.socket_state = nanoengine_pcmcia_socket_state,
- .socket_init = nanoengine_pcmcia_socket_init,
- .socket_suspend = nanoengine_pcmcia_socket_suspend,
};
int pcmcia_nanoengine_init(struct device *dev)