From 52db39a22b0544446e630c853292bfa255a21e24 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 21 Jan 2016 19:43:26 -0700 Subject: dm: pinctrl: Add a function to parse PIN_CONFIG flags Add a function which produces a flags word from a few common PIN_CONFIG settings. This is useful for simple pinctrl drivers that don't need to worry about drive strength, etc. Signed-off-by: Simon Glass --- drivers/pinctrl/pinctrl-uclass.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/pinctrl') diff --git a/drivers/pinctrl/pinctrl-uclass.c b/drivers/pinctrl/pinctrl-uclass.c index c42b312..1acbfaf 100644 --- a/drivers/pinctrl/pinctrl-uclass.c +++ b/drivers/pinctrl/pinctrl-uclass.c @@ -15,6 +15,18 @@ DECLARE_GLOBAL_DATA_PTR; +int pinctrl_decode_pin_config(const void *blob, int node) +{ + int flags = 0; + + if (fdtdec_get_bool(blob, node, "bias-pull-up")) + flags |= 1 << PIN_CONFIG_BIAS_PULL_UP; + else if (fdtdec_get_bool(blob, node, "bias-pull-down")) + flags |= 1 << PIN_CONFIG_BIAS_PULL_DOWN; + + return flags; +} + #if CONFIG_IS_ENABLED(PINCTRL_FULL) /** * pinctrl_config_one() - apply pinctrl settings for a single node -- cgit v1.1