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ARM: pxa: mainstone: use new pxa_cplds driver

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As the interrupt handling was transferred to the pxa_cplds driver,
make the switch in mainstone platform code.

Fixes: 157d2644cb ("ARM: pxa: change gpio to platform device")
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Robert Jarzmik 2015-04-24 23:22:35 +02:00
parent aa8d6b73ea
commit 277688639f
2 changed files with 31 additions and 90 deletions
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6
arch/arm/mach-pxa/include/mach/mainstone.h
View File

@ -120,7 +120,9 @@
#define MST_PCMCIA_PWR_VCC_50 0x4 /* voltage VCC = 5.0V */
/* board specific IRQs */
#define MAINSTONE_IRQ(x) (IRQ_BOARD_START + (x))
#define MAINSTONE_NR_IRQS IRQ_BOARD_START
#define MAINSTONE_IRQ(x) (MAINSTONE_NR_IRQS + (x))
#define MAINSTONE_MMC_IRQ MAINSTONE_IRQ(0)
#define MAINSTONE_USIM_IRQ MAINSTONE_IRQ(1)
#define MAINSTONE_USBC_IRQ MAINSTONE_IRQ(2)
@ -136,6 +138,4 @@
#define MAINSTONE_S1_STSCHG_IRQ MAINSTONE_IRQ(14)
#define MAINSTONE_S1_IRQ MAINSTONE_IRQ(15)
#define MAINSTONE_NR_IRQS (IRQ_BOARD_START + 16)
#endif

115
arch/arm/mach-pxa/mainstone.c
View File

@ -13,6 +13,7 @@
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/syscore_ops.h>
@ -122,92 +123,6 @@ static unsigned long mainstone_pin_config[] = {
GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
};
static unsigned long mainstone_irq_enabled;
static void mainstone_mask_irq(struct irq_data *d)
{
int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
}
static void mainstone_unmask_irq(struct irq_data *d)
{
int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
/* the irq can be acknowledged only if deasserted, so it's done here */
MST_INTSETCLR &= ~(1 << mainstone_irq);
MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
}
static struct irq_chip mainstone_irq_chip = {
.name = "FPGA",
.irq_ack = mainstone_mask_irq,
.irq_mask = mainstone_mask_irq,
.irq_unmask = mainstone_unmask_irq,
};
static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
do {
/* clear useless edge notification */
desc->irq_data.chip->irq_ack(&desc->irq_data);
if (likely(pending)) {
irq = MAINSTONE_IRQ(0) + __ffs(pending);
generic_handle_irq(irq);
}
pending = MST_INTSETCLR & mainstone_irq_enabled;
} while (pending);
}
static void __init mainstone_init_irq(void)
{
int irq;
pxa27x_init_irq();
/* setup extra Mainstone irqs */
for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
irq_set_chip_and_handler(irq, &mainstone_irq_chip,
handle_level_irq);
if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
else
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_flags(MAINSTONE_IRQ(8), 0);
set_irq_flags(MAINSTONE_IRQ(12), 0);
MST_INTMSKENA = 0;
MST_INTSETCLR = 0;
irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler);
irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
}
#ifdef CONFIG_PM
static void mainstone_irq_resume(void)
{
MST_INTMSKENA = mainstone_irq_enabled;
}
static struct syscore_ops mainstone_irq_syscore_ops = {
.resume = mainstone_irq_resume,
};
static int __init mainstone_irq_device_init(void)
{
if (machine_is_mainstone())
register_syscore_ops(&mainstone_irq_syscore_ops);
return 0;
}
device_initcall(mainstone_irq_device_init);
#endif
static struct resource smc91x_resources[] = {
[0] = {
.start = (MST_ETH_PHYS + 0x300),
@ -487,11 +402,37 @@ static struct platform_device mst_gpio_keys_device = {
},
};
static struct resource mst_cplds_resources[] = {
[0] = {
.start = MST_FPGA_PHYS + 0xc0,
.end = MST_FPGA_PHYS + 0xe0 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PXA_GPIO_TO_IRQ(0),
.end = PXA_GPIO_TO_IRQ(0),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
},
[2] = {
.start = MAINSTONE_IRQ(0),
.end = MAINSTONE_IRQ(15),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device mst_cplds_device = {
.name = "pxa_cplds_irqs",
.id = -1,
.resource = &mst_cplds_resources[0],
.num_resources = 3,
};
static struct platform_device *platform_devices[] __initdata = {
&smc91x_device,
&mst_flash_device[0],
&mst_flash_device[1],
&mst_gpio_keys_device,
&mst_cplds_device,
};
static struct pxaohci_platform_data mainstone_ohci_platform_data = {
@ -718,7 +659,7 @@ MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
.atag_offset = 0x100, /* BLOB boot parameter setting */
.map_io = mainstone_map_io,
.nr_irqs = MAINSTONE_NR_IRQS,
.init_irq = mainstone_init_irq,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_time = pxa_timer_init,
.init_machine = mainstone_init,