ARM: pxa/lubbock: add GPIO driver for LUB_MISC_WR register
Add a gpio driver for the lubbock miscellaneous write IO register so we can take advantage of subsystems modelled around gpiolib, rather than having to provide platform specific callbacks. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
This commit is contained in:
parent
c6f8d31c06
commit
9c66638412
|
@ -40,6 +40,7 @@ config MACH_PXA3XX_DT
|
|||
|
||||
config ARCH_LUBBOCK
|
||||
bool "Intel DBPXA250 Development Platform (aka Lubbock)"
|
||||
select GPIO_REG
|
||||
select PXA25x
|
||||
select SA1111
|
||||
|
||||
|
|
|
@ -13,6 +13,7 @@
|
|||
*/
|
||||
#include <linux/clkdev.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/gpio/gpio-reg.h>
|
||||
#include <linux/gpio/machine.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
|
@ -110,20 +111,18 @@ static unsigned long lubbock_pin_config[] __initdata = {
|
|||
};
|
||||
|
||||
#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
|
||||
#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
|
||||
|
||||
void lubbock_set_hexled(uint32_t value)
|
||||
{
|
||||
LUB_HEXLED = value;
|
||||
}
|
||||
|
||||
static struct gpio_chip *lubbock_misc_wr_gc;
|
||||
|
||||
void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
|
||||
local_irq_restore(flags);
|
||||
unsigned long m = mask, v = set;
|
||||
lubbock_misc_wr_gc->set_multiple(lubbock_misc_wr_gc, &m, &v);
|
||||
}
|
||||
EXPORT_SYMBOL(lubbock_set_misc_wr);
|
||||
|
||||
|
@ -452,9 +451,9 @@ static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
|
|||
|
||||
local_irq_save(flags);
|
||||
if (mode & IR_SIRMODE) {
|
||||
LUB_MISC_WR &= ~(1 << 4);
|
||||
lubbock_set_misc_wr(BIT(4), 0);
|
||||
} else if (mode & IR_FIRMODE) {
|
||||
LUB_MISC_WR |= 1 << 4;
|
||||
lubbock_set_misc_wr(BIT(4), BIT(4));
|
||||
}
|
||||
pxa2xx_transceiver_mode(dev, mode);
|
||||
local_irq_restore(flags);
|
||||
|
@ -472,6 +471,15 @@ static void __init lubbock_init(void)
|
|||
|
||||
pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
|
||||
|
||||
lubbock_misc_wr_gc = gpio_reg_init(NULL, (void *)&LUB_MISC_WR,
|
||||
-1, 16, "lubbock", 0, LUB_MISC_WR,
|
||||
NULL, NULL, NULL);
|
||||
if (IS_ERR(lubbock_misc_wr_gc)) {
|
||||
pr_err("Lubbock: unable to register lubbock GPIOs: %ld\n",
|
||||
PTR_ERR(lubbock_misc_wr_gc));
|
||||
lubbock_misc_wr_gc = NULL;
|
||||
}
|
||||
|
||||
pxa_set_ffuart_info(NULL);
|
||||
pxa_set_btuart_info(NULL);
|
||||
pxa_set_stuart_info(NULL);
|
||||
|
|
Loading…
Reference in a new issue