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dm: pinctrl: Add a function to parse PIN_CONFIG flags

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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 <sjg@chromium.org>
This commit is contained in:
Simon Glass
2016-01-21 19:43:26 -07:00
parent 0379597e55
commit 52db39a22b
2 changed files with 25 additions and 0 deletions
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12
drivers/pinctrl/pinctrl-uclass.c
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@@ -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