Pull gpio updates from Bartosz Golaszewski: "A rather small update, there are no new drivers, just improvements and refactoring in existing ones. Thanks to migrating of several drivers to using generalized APIs and dropping of OF interfaces in favor of using software nodes we're actually removing more code than we're adding. Core GPIOLIB: - drop several OF interfaces after moving a significant part of the code to using software nodes - remove more interfaces referring to the global GPIO numberspace that we're getting rid of - improvements in the gpio-regmap library - add helper for GPIO device reference counting - remove unused APIs - minor tweaks like sorting headers alphabetically Extended support in existing drivers: - add support for Tegra 234 PMC to gpio-tegra186 Driver improvements: - migrate the 104-dio/idi family of drivers to using the regmap-irq API - migrate gpio-i8255 and gpio-mm to the GPIO regmap API - clean-ups in gpio-pca953x - remove duplicate assignments of of_gpio_n_cells in gpio-davinci, gpio-ge, gpio-xilinx, gpio-zevio and gpio-wcd934x - improvements to gpio-pcf857x: implement get/set_multiple callbacks, use generic device properties instead of OF + minor tweaks - fix OF-related header includes and Kconfig dependencies in gpio-zevio - dynamically allocate the GPIO base in gpio-omap - use a dedicated printf specifier for printing fwnode info in gpio-sim - use dev_name() for the GPIO chip label in gpio-vf610 - other minor tweaks and fixes Documentation: - remove mentions of legacy API from comments in various places - convert the DT binding documents to YAML schema for Fujitsu MB86S7x, Unisoc GPIO and Unisoc EIC - document the Unisoc UMS512 controller in DT bindings" * tag 'gpio-updates-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (54 commits) gpio: sim: Use %pfwP specifier instead of calling fwnode API directly gpio: tegra186: remove unneeded loop in tegra186_gpio_init_route_mapping() gpiolib: of: Move enum of_gpio_flags to its only user gpio: mvebu: Use IS_REACHABLE instead of IS_ENABLED for CONFIG_PWM gpio: zevio: Add missing header gpio: Get rid of gpio_to_chip() gpio: pcf857x: Drop unneeded explicit casting gpio: pcf857x: Make use of device properties gpio: pcf857x: Get rid of legacy platform data gpio: rockchip: Do not mention legacy API in the code gpio: wcd934x: Remove duplicate assignment of of_gpio_n_cells gpio: zevio: Use proper headers and drop OF_GPIO dependency gpio: zevio: Remove duplicate assignment of of_gpio_n_cells gpio: xilinx: Remove duplicate assignment of of_gpio_n_cells dt-bindings: gpio: Add compatible string for Unisoc UMS512 dt-bindings: gpio: Convert Unisoc EIC controller binding to yaml dt-bindings: gpio: Convert Unisoc GPIO controller binding to yaml gpio: ge: Remove duplicate assignment of of_gpio_n_cells gpio: davinci: Remove duplicate assignment of of_gpio_n_cells gpio: omap: use dynamic allocation of base ...
Showing the changes to include/linux/platform_data (1 of 49 files). Show all
Unified · Split
| @@ -1,45 +0,0 @@ | |||
| 1 | /* SPDX-License-Identifier: GPL-2.0 */ | ||
| 2 | #ifndef __LINUX_PCF857X_H | ||
| 3 | #define __LINUX_PCF857X_H | ||
| 4 | |||
| 5 | /** | ||
| 6 | * struct pcf857x_platform_data - data to set up pcf857x driver | ||
| 7 | * @gpio_base: number of the chip's first GPIO | ||
| 8 | * @n_latch: optional bit-inverse of initial register value; if | ||
| 9 | * you leave this initialized to zero the driver will act | ||
| 10 | * like the chip was just reset | ||
| 11 | * @setup: optional callback issued once the GPIOs are valid | ||
| 12 | * @teardown: optional callback issued before the GPIOs are invalidated | ||
| 13 | * @context: optional parameter passed to setup() and teardown() | ||
| 14 | * | ||
| 15 | * In addition to the I2C_BOARD_INFO() state appropriate to each chip, | ||
| 16 | * the i2c_board_info used with the pcf875x driver must provide its | ||
| 17 | * platform_data (pointer to one of these structures) with at least | ||
| 18 | * the gpio_base value initialized. | ||
| 19 | * | ||
| 20 | * The @setup callback may be used with the kind of board-specific glue | ||
| 21 | * which hands the (now-valid) GPIOs to other drivers, or which puts | ||
| 22 | * devices in their initial states using these GPIOs. | ||
| 23 | * | ||
| 24 | * These GPIO chips are only "quasi-bidirectional"; read the chip specs | ||
| 25 | * to understand the behavior. They don't have separate registers to | ||
| 26 | * record which pins are used for input or output, record which output | ||
| 27 | * values are driven, or provide access to input values. That must be | ||
| 28 | * inferred by reading the chip's value and knowing the last value written | ||
| 29 | * to it. If you leave n_latch initialized to zero, that last written | ||
| 30 | * value is presumed to be all ones (as if the chip were just reset). | ||
| 31 | */ | ||
| 32 | struct pcf857x_platform_data { | ||
| 33 | unsigned gpio_base; | ||
| 34 | unsigned n_latch; | ||
| 35 | |||
| 36 | int (*setup)(struct i2c_client *client, | ||
| 37 | int gpio, unsigned ngpio, | ||
| 38 | void *context); | ||
| 39 | void (*teardown)(struct i2c_client *client, | ||
| 40 | int gpio, unsigned ngpio, | ||
| 41 | void *context); | ||
| 42 | void *context; | ||
| 43 | }; | ||
| 44 | |||
| 45 | #endif /* __LINUX_PCF857X_H */ | ||