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authorBaolin Wang <baolin.wang@spreadtrum.com>2017-08-17 14:50:36 +0800
committerLinus Walleij <linus.walleij@linaro.org>2017-08-31 09:15:21 +0200
commit6606bc9dee63ad8cda2cc310d2ad5992673a785a (patch)
treeee19f111f9e01e5699cb8681f8f117d81c4e07a2 /drivers
parentca8febe8f91510022572c2238c49c69dac35adae (diff)
downloadlinux-6606bc9dee63ad8cda2cc310d2ad5992673a785a.tar.bz2
pinctrl: Add sleep related state to indicate sleep related configs
In some scenarios, we should set some pins as input/output/pullup/pulldown when the specified system goes into deep sleep mode, then when the system goes into deep sleep mode, these pins will be set automatically by hardware. That means some pins are not controlled by any specific driver in the OS, but need to be controlled when entering sleep mode. Thus we introduce one sleep state config into pinconf-generic for users to configure. Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pinctrl/pinconf-generic.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 4cf901c78130..8eaa25c3384f 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -47,6 +47,7 @@ static const struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_OUTPUT_ENABLE, "output enabled", NULL, false),
PCONFDUMP(PIN_CONFIG_OUTPUT, "pin output", "level", true),
PCONFDUMP(PIN_CONFIG_POWER_SOURCE, "pin power source", "selector", true),
+ PCONFDUMP(PIN_CONFIG_SLEEP_HARDWARE_STATE, "sleep hardware state", NULL, false),
PCONFDUMP(PIN_CONFIG_SLEW_RATE, "slew rate", NULL, true),
};
@@ -178,6 +179,7 @@ static const struct pinconf_generic_params dt_params[] = {
{ "output-high", PIN_CONFIG_OUTPUT, 1, },
{ "output-low", PIN_CONFIG_OUTPUT, 0, },
{ "power-source", PIN_CONFIG_POWER_SOURCE, 0 },
+ { "sleep-hardware-state", PIN_CONFIG_SLEEP_HARDWARE_STATE, 0 },
{ "slew-rate", PIN_CONFIG_SLEW_RATE, 0 },
};