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pinctrl: intel: Use NSEC_PER_USEC for debounce calculus 

Replace hard coded constants with self-explanatory names, i.e.
use NSEC_PER_USEC for debounce calculus.

While here, add a unit suffix to debounce period constant.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
alistair/sunxi64-5.4-dsi
Andy Shevchenko 2019-08-07 16:41:50 +03:00
parent 34e656703e
commit 6a33a1d6d6
1 changed files with 5 additions and 4 deletions
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9
drivers/pinctrl/intel/pinctrl-intel.c
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@ -8,12 +8,13 @@
*/
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/gpio/driver.h>
#include <linux/log2.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/time.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
@ -70,7 +71,7 @@
#define PADCFG2_DEBOUNCE_SHIFT 1
#define PADCFG2_DEBOUNCE_MASK GENMASK(4, 1)
#define DEBOUNCE_PERIOD 31250 /* ns */
#define DEBOUNCE_PERIOD_NSEC 31250
struct intel_pad_context {
u32 padcfg0;
@ -565,7 +566,7 @@ static int intel_config_get(struct pinctrl_dev *pctldev, unsigned int pin,
return -EINVAL;
v = (v & PADCFG2_DEBOUNCE_MASK) >> PADCFG2_DEBOUNCE_SHIFT;
arg = BIT(v) * DEBOUNCE_PERIOD / 1000;
arg = BIT(v) * DEBOUNCE_PERIOD_NSEC / NSEC_PER_USEC;
break;
}
@ -682,7 +683,7 @@ static int intel_config_set_debounce(struct intel_pinctrl *pctrl,
if (debounce) {
unsigned long v;
v = order_base_2(debounce * 1000 / DEBOUNCE_PERIOD);
v = order_base_2(debounce * NSEC_PER_USEC / DEBOUNCE_PERIOD_NSEC);
if (v < 3 || v > 15) {
ret = -EINVAL;
goto exit_unlock;