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Merge branch 'ib-gpio-aggregator' into devel

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This commit is contained in:
Linus Walleij
2020-05-18 10:13:36 +02:00
parent d850c6f42c d9646a4866
commit a0d50aa935
11 changed files with 748 additions and 36 deletions
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17
include/linux/gpio/machine.h
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@@ -20,8 +20,11 @@ enum gpio_lookup_flags {
/**
* struct gpiod_lookup - lookup table
* @chip_label: name of the chip the GPIO belongs to
* @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
* @key: either the name of the chip the GPIO belongs to, or the GPIO line name
* Note that GPIO line names are not guaranteed to be globally unique,
* so this will use the first match found!
* @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO, or
* U16_MAX to indicate that @key is a GPIO line name
* @con_id: name of the GPIO from the device's point of view
* @idx: index of the GPIO in case several GPIOs share the same name
* @flags: bitmask of gpio_lookup_flags GPIO_* values
@@ -30,7 +33,7 @@ enum gpio_lookup_flags {
* functions using platform data.
*/
struct gpiod_lookup {
const char *chip_label;
const char *key;
u16 chip_hwnum;
const char *con_id;
unsigned int idx;
@@ -63,17 +66,17 @@ struct gpiod_hog {
/*
* Simple definition of a single GPIO under a con_id
*/
#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _con_id, _flags) \
GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, 0, _flags)
#define GPIO_LOOKUP(_key, _chip_hwnum, _con_id, _flags) \
GPIO_LOOKUP_IDX(_key, _chip_hwnum, _con_id, 0, _flags)
/*
* Use this macro if you need to have several GPIOs under the same con_id.
* Each GPIO needs to use a different index and can be accessed using
* gpiod_get_index()
*/
#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, _idx, _flags) \
#define GPIO_LOOKUP_IDX(_key, _chip_hwnum, _con_id, _idx, _flags) \
{ \
.chip_label = _chip_label, \
.key = _key, \
.chip_hwnum = _chip_hwnum, \
.con_id = _con_id, \
.idx = _idx, \