On Fri, Nov 11, 2022 at 10:49:32PM +0100, Bartosz Golaszewski wrote:
> On Wed, Nov 9, 2022 at 8:30 PM Dmitry Torokhov
> <dmitry.torokhov@xxxxxxxxx> wrote:
> >
> > This series attempts to add support for software nodes to gpiolib, using
> > software node references. This allows us to convert more drivers to the
> > generic device properties and drop support for custom platform data.
> >
> > To describe a GPIO via software nodes we can create the following data
> > items:
> >
> > /* Node representing the GPIO controller/GPIO bank */
> > static const struct software_node gpio_bank_b_node = {
> > .name = "B",
> > };
> >
> > /*
> > * Properties that will be assigned to a software node assigned to
> > * the device that used platform data.
> > */
> > static const struct property_entry simone_key_enter_props[] = {
> > PROPERTY_ENTRY_U32("linux,code", KEY_ENTER),
> > PROPERTY_ENTRY_STRING("label", "enter"),
> > PROPERTY_ENTRY_REF("gpios", &gpio_bank_b_node, 123, GPIO_ACTIVE_LOW),
> > { }
> > };
> >
> > The code in gpiolib handling software nodes uses the name in the
> > software node representing GPIO controller to locate the actual instance
> > of GPIO controller.
> >
> > To: Linus Walleij <linus.walleij@xxxxxxxxxx>
> > To: Bartosz Golaszewski <brgl@xxxxxxxx>
> > To: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > Cc: linux-gpio@xxxxxxxxxxxxxxx
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > Cc: linux-acpi@xxxxxxxxxxxxxxx
> >
> > ---
> > Changes in v3:
> > - Addressed more Andy's comments
> > - Link to v2: https://lore.kernel.org/r/20221031-gpiolib-swnode-v2-0-81f55af5fa0e@xxxxxxxxx
> >
> > Changes in v2:
> > - reworked the series to be independent of other in-flight patches.
> > That meant keeping devm_gpiod_get_from_of_node() for now.
> > - removed handling of secondary nodes, it deserves a separate patch
> > series
> > - fixed refcounting when handling swnodes (Andy)
> > - added include/linux/gpio/property.h with PROPERTY_ENTRY_GPIO (Andy)
> > - addressed most of the rest of Andy's comments
> > - collected reviewed-by and acked-by
> > - Link to v1: https://lore.kernel.org/r/20221031-gpiolib-swnode-v1-0-a0ab48d229c7@xxxxxxxxx
> >
> > ---
> > Dmitry Torokhov (6):
> > gpiolib: of: change of_find_gpio() to accept device node
> > gpiolib: acpi: change acpi_find_gpio() to accept firmware node
> > gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes
> > gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers
> > gpiolib: consolidate GPIO lookups
> > gpiolib: add support for software nodes
> >
> > drivers/gpio/Makefile | 1 +
> > drivers/gpio/gpiolib-acpi.c | 132 +++++++++++++++-----------
> > drivers/gpio/gpiolib-acpi.h | 54 +----------
> > drivers/gpio/gpiolib-of.c | 7 +-
> > drivers/gpio/gpiolib-of.h | 4 +-
> > drivers/gpio/gpiolib-swnode.c | 123 +++++++++++++++++++++++++
> > drivers/gpio/gpiolib-swnode.h | 14 +++
> > drivers/gpio/gpiolib.c | 209 ++++++++++++++++--------------------------
> > include/linux/gpio/property.h | 11 +++
> > 9 files changed, 315 insertions(+), 240 deletions(-)
> > ---
> > base-commit: b6fc3fddade7a194bd141a49f2689e50f796ef46
> > change-id: 20221031-gpiolib-swnode-948203f49b23
> >
> > --
> > Dmitry
> >
>
> Hi Dmitry,
>
> What are the prerequisites of this series as it doesn't apply to my
> gpio/for-next branch?
Hi Bart,
No prereqs, must be just a small context changes now that you merged
leds changes and the patch removing devm_fwnode_get_[index_]gpiod_from_child().
Let me rebase it on top of latest next tree and resend.
--
Dmitry
