diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2020-01-13 11:35:09 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-04-16 23:06:54 -0400 |
| commit | 8fd9daf0363e6d0bda8cc9a6330eb08a0c98543f (patch) | |
| tree | 8f6b79fee9ca39f4f66b0e178481de980dddb503 /drivers/gpio | |
| parent | d2c07e56ab3ef0cec99335aa8dafbed691d23739 (diff) | |
gpio: add ops to set dir flags
Add the ops for GPIO driver set_dir_flags() to set the dir flags.
The user can update the direction and configuration
of each GPIO with a only call to dm_gpio_set_dir_flags() or
dm_gpio_set_dir() and respecting the configuration provided by
device tree (saved in desc->flags).
When these optional ops are absent, the gpio uclass use the mandatory
ops (direction_output, direction_input, get_value) and desc->flags
to manage only the main dir flags:
- GPIOD_IS_IN
- GPIOD_IS_OUT
- GPIOD_IS_OUT_ACTIVE
- GPIOD_ACTIVE_LOW
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-uclass.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index 84e5013cce..757ab7106e 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -572,11 +572,16 @@ static int _dm_gpio_set_dir_flags(struct gpio_desc *desc, ulong flags) return ret; } - if (flags & GPIOD_IS_OUT) { - ret = ops->direction_output(dev, desc->offset, - GPIOD_FLAGS_OUTPUT(flags)); - } else if (flags & GPIOD_IS_IN) { - ret = ops->direction_input(dev, desc->offset); + /* GPIOD_ are directly managed by driver in set_dir_flags*/ + if (ops->set_dir_flags) { + ret = ops->set_dir_flags(dev, desc->offset, flags); + } else { + if (flags & GPIOD_IS_OUT) { + ret = ops->direction_output(dev, desc->offset, + GPIOD_FLAGS_OUTPUT(flags)); + } else if (flags & GPIOD_IS_IN) { + ret = ops->direction_input(dev, desc->offset); + } } return ret; @@ -1146,6 +1151,8 @@ static int gpio_post_bind(struct udevice *dev) ops->get_function += gd->reloc_off; if (ops->xlate) ops->xlate += gd->reloc_off; + if (ops->set_dir_flags) + ops->set_dir_flags += gd->reloc_off; if (ops->get_dir_flags) ops->get_dir_flags += gd->reloc_off; |