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| author | David Brownell <dbrownell@users.sourceforge.net> | 2009-01-06 14:42:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:25 -0800 |
| commit | cabb3fc4bd1628c37c37e054960eb3e4bf30dc26 (patch) | |
| tree | db8acce21cc4c9762da5f815779ec702f5a59c0c /include/linux/i2c | |
| parent | ba6c4033b9db22cb54e7e03dae5b624b7b0ffaf9 (diff) | |
| download | kernel-crypto-cabb3fc4bd1628c37c37e054960eb3e4bf30dc26.tar.gz kernel-crypto-cabb3fc4bd1628c37c37e054960eb3e4bf30dc26.tar.xz kernel-crypto-cabb3fc4bd1628c37c37e054960eb3e4bf30dc26.zip | |
twl4030-gpio: cleanup debounce
Provide a static debounce configuration mechanism for twl4030 GPIOs,
replacing the previous dynamic one. The single user of that mechanism was
for MMC card detect debouncing.
Boards can provide a bitmask saying which GPIOs to debounce (30 msec).
It's always enabled for pins with the MMC card-detect/VMMCx link active,
so most boards won't need to set the debounce mask.
This is a net code shrink, including runtime footprint.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/i2c')
| -rw-r--r-- | include/linux/i2c/twl4030.h | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h index a8f84c01f82..8137f660a5c 100644 --- a/include/linux/i2c/twl4030.h +++ b/include/linux/i2c/twl4030.h @@ -234,6 +234,9 @@ struct twl4030_gpio_platform_data { /* gpio-n should control VMMC(n+1) if BIT(n) in mmc_cd is set */ u8 mmc_cd; + /* if BIT(N) is set, or VMMC(n+1) is linked, debounce GPIO-N */ + u32 debounce; + /* For gpio-N, bit (1 << N) in "pullups" is set if that pullup * should be enabled. Else, if that bit is set in "pulldowns", * that pulldown is enabled. Don't waste power by letting any @@ -307,12 +310,6 @@ int twl4030_sih_setup(int module); #define TWL4030_VAUX3_DEV_GRP 0x1F #define TWL4030_VAUX3_DEDICATED 0x22 -/* - * Exported TWL4030 GPIO APIs - * - * WARNING -- use standard GPIO and IRQ calls instead; these will vanish. - */ -int twl4030_set_gpio_debounce(int gpio, int enable); #if defined(CONFIG_TWL4030_BCI_BATTERY) || \ defined(CONFIG_TWL4030_BCI_BATTERY_MODULE) |