From e45e290a882e2c0dc8ebb7dd21c66a8209d8e3a5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 12 Feb 2018 14:16:57 +0100 Subject: regulator: core: Support passing an initialized GPIO enable descriptor We are currently passing a GPIO number from the global GPIO numberspace into the regulator core for handling enable GPIOs. This is not good since it ties into the global GPIO numberspace and uses gpio_to_desc() to overcome this. Start supporting passing an already initialized GPIO descriptor to the core instead: leaf drivers pick their descriptors, associated directly with the device node (or from ACPI or from a board descriptor table) and use that directly without any roundtrip over the global GPIO numberspace. This looks messy since it adds a bunch of extra code in the core, but at the end of the patch series we will delete the handling of the GPIO number and only deal with descriptors so things end up neat. Signed-off-by: Linus Walleij Signed-off-by: Mark Brown --- include/linux/regulator/driver.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/regulator') diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 4c00486b7a78..4fc96cb8e5d7 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -19,6 +19,7 @@ #include #include +struct gpio_desc; struct regmap; struct regulator_dev; struct regulator_config; @@ -387,6 +388,7 @@ struct regulator_desc { * initialized, meaning that >= 0 is a valid gpio * identifier and < 0 is a non existent gpio. * @ena_gpio: GPIO controlling regulator enable. + * @ena_gpiod: GPIO descriptor controlling regulator enable. * @ena_gpio_invert: Sense for GPIO enable control. * @ena_gpio_flags: Flags to use when calling gpio_request_one() */ @@ -399,6 +401,7 @@ struct regulator_config { bool ena_gpio_initialized; int ena_gpio; + struct gpio_desc *ena_gpiod; unsigned int ena_gpio_invert:1; unsigned int ena_gpio_flags; }; -- cgit v1.2.3