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soc: arm: atmel_sam: Add helper macros to init array of pins

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Added ATMEL_SAM_DT_NUM_PINS macro which will return the number of pins
to initialize for "pinctrl-0" devicetree property.

Added ATMEL_SAM_DT_PINS macro which will create an array initializer
with all the pins associated with "pinctrl-0" devicetree property.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2020-04-23 06:51:17 -05:00 committed by Kumar Gala
parent e9e868be15
commit fa6c990583
1 changed files with 12 additions and 0 deletions
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12
soc/arm/atmel_sam/common/atmel_sam_dt.h
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@ -45,6 +45,18 @@
ATMEL_SAM_PIN_PERIPH(inst, idx) << 16 \
}
/* Get the number of pins for pinctrl-0 */
#define ATMEL_SAM_DT_NUM_PINS(inst) DT_INST_PROP_LEN(inst, pinctrl_0)
/* internal macro to structure things for use with UTIL_LISTIFY */
#define ATMEL_SAM_DT_PIN_ELEM(idx, inst) ATMEL_SAM_DT_PIN(inst, idx),
/* Construct an array intializer for soc_gpio_pin for a device instance */
#define ATMEL_SAM_DT_PINS(inst) \
{ UTIL_LISTIFY(ATMEL_SAM_DT_NUM_PINS(inst), \
ATMEL_SAM_DT_PIN_ELEM, inst) \
}
/* Devicetree macros related to clock */
#define ATMEL_SAM_DT_CPU_CLK_FREQ_HZ \