mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-28 20:02:17 +00:00
ARM: shmobile: ap4evb: Simplify tsc2007 pen state read function
The pen state is retrieved by reading the state of a pin used as an IRQ. There's no need to reconfigure the pin as a pure GPIO, as the IRQ pin state can be read. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
parent
5436c2b9b4
commit
4a666a783b
1 changed files with 2 additions and 11 deletions
|
@ -1037,22 +1037,13 @@ static void __init hdmi_init_pm_clock(void)
|
|||
#define IRQ7 evt2irq(0x02e0) /* IRQ7A */
|
||||
static int ts_get_pendown_state(void)
|
||||
{
|
||||
int val;
|
||||
|
||||
gpio_free(GPIO_TSC_IRQ);
|
||||
|
||||
gpio_request_one(GPIO_TSC_PORT, GPIOF_IN, NULL);
|
||||
|
||||
val = gpio_get_value(GPIO_TSC_PORT);
|
||||
|
||||
gpio_request(GPIO_TSC_IRQ, NULL);
|
||||
|
||||
return !val;
|
||||
return !gpio_get_value(GPIO_TSC_PORT);
|
||||
}
|
||||
|
||||
static int ts_init(void)
|
||||
{
|
||||
gpio_request(GPIO_TSC_IRQ, NULL);
|
||||
gpio_request_one(GPIO_TSC_PORT, GPIOF_IN, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue