From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: [PATCH 00/21] regulator: switch core to GPIO descriptors Date: Mon, 12 Feb 2018 14:16:56 +0100 Message-ID: <20180212131717.27193-1-linus.walleij@linaro.org> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Liam Girdwood , Mark Brown Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Linus Walleij List-Id: linux-gpio@vger.kernel.org While the regulator core mostly use GPIO descriptors there are some rough edges we need to chisel down: - The fixed regulator still passes a "ena_gpio" number from the global GPIO numberspace. This we want to get rid of. We do this by allowing drivers to pass in a descriptor instead, converting all drivers and platform data over and then only allowing that. - The fixed regulator also has special platform data or device tree properties for handling polarity inversion or open drain. We have pulled these special semantics into gpiolib in commit a603a2b8d86ee93ee2107da8ca75fd854fd4ff32 "gpio: of: Add special quirk to parse regulator flags" so we can now move all drivers over to using only descriptors for this as well. - The GPIO regulator has a similar complicated relationship to the global GPIO numberspace. We have merged helpers and convert these users too. Some drivers needed to get a GPIO from an opaque DT node i.e. a DT node without a corresponding device. For this case we have added devm_gpiod_get_from_of_node() in the v4.16-rc1 kernel so we can proceed with the conversion. I have tried to loop in maintainers of the board files affected as much as I can. It is uncertain if they even care in some cases, with some PalmPilot-PDA-type ARM devices I'm really starting to wonder if they are really maintained and tested anymore, but I've still done my best to not accidentally break them. The patches can also be grabbed from this branch: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git/log/?h=gpio-descriptors-regulator I.e. git pull git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git gpio-descriptors-regulator to test it with any pet system. Some ACKs and Tested-by's would be nice! I really don't want to break anything if I can avoid it. All patches have been boiled through the zeroday build system so at least everything builds, but runtime testing is paramount. Linus Walleij (21): regulator: core: Support passing an initialized GPIO enable descriptor regulator: fixed: Convert to use GPIO descriptor only regulator: gpio: Get enable GPIO using GPIO descriptor regulator: da9055: Pass descriptor instead of GPIO number regulator: arizona-ldo1: Look up a descriptor and pass to the core regulator: da9211: Pass descriptors instead of GPIO numbers regulator: max8973: Pass descriptor instead of GPIO number regulator: max77686: Pass descriptor instead of GPIO number regulator: lm363x: Pass descriptor instead of GPIO number regulator: lp8788-ldo: Pass descriptor instead of GPIO number regulator: max8952: Pass descriptor instead of GPIO number regulator: pfuze100: Delete reference to ena_gpio regulator: s2mps11: Pass descriptor instead of GPIO number regulator: s5m8767: Pass descriptor instead of GPIO number regulator: tps65090: Pass descriptor instead of GPIO number regulator: wm8994: Pass descriptor instead of GPIO number regulator: core: Only support passing enable GPIO descriptors regulator: fixed/gpio: Pull inversion/OD into gpiolib regulator: fixed/gpio: Update device tree bindings regulator: gpio: Convert to fully use descriptors regulator: gpio: Simplify probe path .../bindings/regulator/fixed-regulator.txt | 13 +- .../bindings/regulator/gpio-regulator.txt | 4 + arch/arm/mach-imx/mach-mx21ads.c | 14 +- arch/arm/mach-imx/mach-mx27ads.c | 12 +- arch/arm/mach-mmp/brownstone.c | 13 +- arch/arm/mach-omap1/board-ams-delta.c | 15 +- arch/arm/mach-omap2/pdata-quirks.c | 17 +- arch/arm/mach-pxa/em-x270.c | 2 - arch/arm/mach-pxa/ezx.c | 34 ++-- arch/arm/mach-pxa/hx4700.c | 23 ++- arch/arm/mach-pxa/magician.c | 25 ++- arch/arm/mach-pxa/raumfeld.c | 13 +- arch/arm/mach-pxa/zeus.c | 24 ++- arch/arm/mach-s3c64xx/mach-crag6410-module.c | 18 +- arch/arm/mach-s3c64xx/mach-crag6410.c | 1 - arch/arm/mach-s3c64xx/mach-smdk6410.c | 1 - arch/blackfin/mach-bf537/boards/stamp.c | 15 +- arch/sh/boards/mach-ecovec24/setup.c | 29 +++- .../intel-mid/device_libs/platform_bcm43xx.c | 20 ++- drivers/mfd/wm8994-core.c | 9 - drivers/regulator/arizona-ldo1.c | 19 +- drivers/regulator/core.c | 33 +--- drivers/regulator/da9055-regulator.c | 5 +- drivers/regulator/da9211-regulator.c | 23 ++- drivers/regulator/fixed-helper.c | 1 - drivers/regulator/fixed.c | 43 ++--- drivers/regulator/gpio-regulator.c | 193 ++++++++------------- drivers/regulator/lm363x-regulator.c | 20 +-- drivers/regulator/lp8788-ldo.c | 32 ++-- drivers/regulator/max77686-regulator.c | 19 +- drivers/regulator/max8952.c | 18 +- drivers/regulator/max8973-regulator.c | 54 +++--- drivers/regulator/pfuze100-regulator.c | 1 - drivers/regulator/s2mps11.c | 46 ++--- drivers/regulator/s5m8767.c | 26 +-- drivers/regulator/tps65090-regulator.c | 50 +++--- drivers/regulator/wm8994-regulator.c | 19 +- include/linux/mfd/da9055/pdata.h | 5 +- include/linux/mfd/lp8788.h | 16 -- include/linux/mfd/samsung/core.h | 4 +- include/linux/mfd/tps65090.h | 8 +- include/linux/mfd/wm8994/pdata.h | 3 - include/linux/regulator/arizona-ldo1.h | 3 - include/linux/regulator/da9211.h | 4 +- include/linux/regulator/driver.h | 11 +- include/linux/regulator/fixed.h | 13 -- include/linux/regulator/gpio-regulator.h | 18 +- include/linux/regulator/max8952.h | 1 - 48 files changed, 519 insertions(+), 471 deletions(-) -- 2.14.3