unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
1
Fork 0
Code Pull requests 5 Wiki Activity

davinci: sparse: gpio: void casting

Browse source 
Cleanup usage of void pointers when using genirq.  genirq API
takes and returns void *, where this GPIO API is using those
as __iomem pointers.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Kevin Hilman 2010-02-25 16:49:56 -08:00
parent 28552c2eae
commit 21ce873d21
1 changed files with 18 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
arch/arm/mach-davinci/gpio.c
View file

@ -36,6 +36,15 @@ static struct gpio_controller __iomem __init *gpio2controller(unsigned gpio)
return __gpio_to_controller(gpio);
}
static inline struct gpio_controller __iomem *irq2controller(int irq)
{
struct gpio_controller __iomem *g;
g = (__force struct gpio_controller __iomem *)get_irq_chip_data(irq);
return g;
}
static int __init davinci_gpio_irq_setup(void);
/*--------------------------------------------------------------------------*/
@ -161,7 +170,7 @@ pure_initcall(davinci_gpio_setup);
static void gpio_irq_disable(unsigned irq)
{
struct gpio_controller __iomem *g = get_irq_chip_data(irq);
struct gpio_controller __iomem *g = irq2controller(irq);
u32 mask = (u32) get_irq_data(irq);
__raw_writel(mask, &g->clr_falling);
@ -170,7 +179,7 @@ static void gpio_irq_disable(unsigned irq)
static void gpio_irq_enable(unsigned irq)
{
struct gpio_controller __iomem *g = get_irq_chip_data(irq);
struct gpio_controller __iomem *g = irq2controller(irq);
u32 mask = (u32) get_irq_data(irq);
unsigned status = irq_desc[irq].status;
@ -186,7 +195,7 @@ static void gpio_irq_enable(unsigned irq)
static int gpio_irq_type(unsigned irq, unsigned trigger)
{
struct gpio_controller __iomem *g = get_irq_chip_data(irq);
struct gpio_controller __iomem *g = irq2controller(irq);
u32 mask = (u32) get_irq_data(irq);
if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
@ -215,7 +224,7 @@ static struct irq_chip gpio_irqchip = {
static void
gpio_irq_handler(unsigned irq, struct irq_desc *desc)
{
struct gpio_controller __iomem *g = get_irq_chip_data(irq);
struct gpio_controller __iomem *g = irq2controller(irq);
u32 mask = 0xffff;
/* we only care about one bank */
@ -276,7 +285,7 @@ static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
static int gpio_irq_type_unbanked(unsigned irq, unsigned trigger)
{
struct gpio_controller __iomem *g = get_irq_chip_data(irq);
struct gpio_controller __iomem *g = irq2controller(irq);
u32 mask = (u32) get_irq_data(irq);
if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
@ -362,7 +371,7 @@ static int __init davinci_gpio_irq_setup(void)
for (gpio = 0; gpio < soc_info->gpio_unbanked; gpio++, irq++) {
set_irq_chip(irq, &gpio_irqchip_unbanked);
set_irq_data(irq, (void *) __gpio_mask(gpio));
set_irq_chip_data(irq, g);
set_irq_chip_data(irq, (__force void *) g);
irq_desc[irq].status |= IRQ_TYPE_EDGE_BOTH;
}
@ -385,12 +394,12 @@ static int __init davinci_gpio_irq_setup(void)
/* set up all irqs in this bank */
set_irq_chained_handler(bank_irq, gpio_irq_handler);
set_irq_chip_data(bank_irq, g);
set_irq_data(bank_irq, (void *)irq);
set_irq_chip_data(bank_irq, (__force void *) g);
set_irq_data(bank_irq, (void *) irq);
for (i = 0; i < 16 && gpio < ngpio; i++, irq++, gpio++) {
set_irq_chip(irq, &gpio_irqchip);
set_irq_chip_data(irq, g);
set_irq_chip_data(irq, (__force void *) g);
set_irq_data(irq, (void *) __gpio_mask(gpio));
set_irq_handler(irq, handle_simple_irq);
set_irq_flags(irq, IRQF_VALID);