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authorThierry Reding <treding@nvidia.com>2019-11-08 19:07:46 +0300
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2019-11-12 13:13:54 +0300
commitb0391479ae04dfcbd208b9571c375064caad9a57 (patch)
treeeaf7e6cb7a31f167b57c37dc66b73ab921a07e3e /drivers/gpio/gpio-max77620.c
parent31f4f5b495a62c9a8b15b1c3581acd5efeb9af8c (diff)
downloadlinux-b0391479ae04dfcbd208b9571c375064caad9a57.tar.xz
gpio: max77620: Fixup debounce delays
When converting milliseconds to microseconds in commit fffa6af94894 ("gpio: max77620: Use correct unit for debounce times") some ~1 ms gaps were introduced between the various ranges supported by the controller. Fix this by changing the start of each range to the value immediately following the end of the previous range. This way a debounce time of, say 8250 us will translate into 16 ms instead of returning an -EINVAL error. Typically the debounce delay is only ever set through device tree and specified in milliseconds, so we can never really hit this issue because debounce times are always a multiple of 1000 us. The only notable exception for this is drivers/mmc/host/mmc-spi.c where the CD GPIO is requested, which passes a 1 us debounce time. According to a comment preceeding that code this should actually be 1 ms (i.e. 1000 us). Reported-by: Pavel Machek <pavel@denx.de> Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Pavel Machek <pavel@denx.de> Cc: <stable@vger.kernel.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio/gpio-max77620.c')
-rw-r--r--drivers/gpio/gpio-max77620.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c
index faf86ea9c51a..642c6321c22a 100644
--- a/drivers/gpio/gpio-max77620.c
+++ b/drivers/gpio/gpio-max77620.c
@@ -192,13 +192,13 @@ static int max77620_gpio_set_debounce(struct max77620_gpio *mgpio,
case 0:
val = MAX77620_CNFG_GPIO_DBNC_None;
break;
- case 1000 ... 8000:
+ case 1 ... 8000:
val = MAX77620_CNFG_GPIO_DBNC_8ms;
break;
- case 9000 ... 16000:
+ case 8001 ... 16000:
val = MAX77620_CNFG_GPIO_DBNC_16ms;
break;
- case 17000 ... 32000:
+ case 16001 ... 32000:
val = MAX77620_CNFG_GPIO_DBNC_32ms;
break;
default: