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soc/intel/apollolake: make internal pulls weak for gpio inputs

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The internal pulls for gpio_input_pullup() and gpio_input_pulldown()
were using fairly strong pulls. Weaken them so that external pulls
can override the internal ones. This matches the current assumptions
of lib/gpio.c.

BUG=chrome-os-partner:54949
BRANCH=None
TEST=Built and used on reef for memory config.

Change-Id: Ifda1d04d40141325f78db277eb0bd55574994abf
Signed-off-by: Aaron Durbin <adurbin@chromuim.org>
Reviewed-on: https://review.coreboot.org/15558
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Aaron Durbin 2016-07-06 22:41:24 -05:00
parent f41ac2298e
commit a790f1b085
1 changed files with 2 additions and 2 deletions
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4
src/soc/intel/apollolake/gpio.c
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@ -71,13 +71,13 @@ void gpio_configure_pads(const struct pad_config *cfg, size_t num_pads)
void gpio_input_pulldown(gpio_t gpio)
{
struct pad_config cfg = PAD_CFG_GPI(gpio, DN_5K, DEEP);
struct pad_config cfg = PAD_CFG_GPI(gpio, DN_20K, DEEP);
gpio_configure_pad(&cfg);
}
void gpio_input_pullup(gpio_t gpio)
{
struct pad_config cfg = PAD_CFG_GPI(gpio, UP_5K, DEEP);
struct pad_config cfg = PAD_CFG_GPI(gpio, UP_20K, DEEP);
gpio_configure_pad(&cfg);
}