From 8c88ceca578d117ec7981d61b89580570e2dbab9 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Wed, 1 Jul 2020 01:26:22 -0700 Subject: drivers/generic/gpio_regulator: Drop unused driver for gpio_regulator Proposal for gpio_regulator usage in ACPI never got accepted upstream for Linux kernel. So, the gpio_regulator driver in coreboot remains unused. This change drops this unused driver. Change-Id: Ia1e0ae4f955b9ffc8346d957f755499419d8cbc7 Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/c/coreboot/+/42966 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/drivers/generic/gpio_regulator/Kconfig | 5 -- src/drivers/generic/gpio_regulator/Makefile.inc | 3 - src/drivers/generic/gpio_regulator/chip.h | 14 ---- .../generic/gpio_regulator/gpio_regulator.c | 75 ---------------------- 4 files changed, 97 deletions(-) delete mode 100644 src/drivers/generic/gpio_regulator/Kconfig delete mode 100644 src/drivers/generic/gpio_regulator/Makefile.inc delete mode 100644 src/drivers/generic/gpio_regulator/chip.h delete mode 100644 src/drivers/generic/gpio_regulator/gpio_regulator.c diff --git a/src/drivers/generic/gpio_regulator/Kconfig b/src/drivers/generic/gpio_regulator/Kconfig deleted file mode 100644 index c4c83e40bc..0000000000 --- a/src/drivers/generic/gpio_regulator/Kconfig +++ /dev/null @@ -1,5 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only - -config DRIVERS_GENERIC_GPIO_REGULATOR - bool - depends on HAVE_ACPI_TABLES diff --git a/src/drivers/generic/gpio_regulator/Makefile.inc b/src/drivers/generic/gpio_regulator/Makefile.inc deleted file mode 100644 index 232e65e347..0000000000 --- a/src/drivers/generic/gpio_regulator/Makefile.inc +++ /dev/null @@ -1,3 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only - -ramstage-$(CONFIG_DRIVERS_GENERIC_GPIO_REGULATOR) += gpio_regulator.c diff --git a/src/drivers/generic/gpio_regulator/chip.h b/src/drivers/generic/gpio_regulator/chip.h deleted file mode 100644 index 4d9e3ceb35..0000000000 --- a/src/drivers/generic/gpio_regulator/chip.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#ifndef __DRIVERS_GENERIC_GPIO_REGULATOR_H__ -#define __DRIVERS_GENERIC_GPIO_REGULATOR_H__ - -#include - -struct drivers_generic_gpio_regulator_config { - const char *name; - struct acpi_gpio gpio; - bool enabled_on_boot; -}; - -#endif /* __DRIVERS_GENERIC_GPIO_REGULATOR_H__ */ diff --git a/src/drivers/generic/gpio_regulator/gpio_regulator.c b/src/drivers/generic/gpio_regulator/gpio_regulator.c deleted file mode 100644 index be71b9de0e..0000000000 --- a/src/drivers/generic/gpio_regulator/gpio_regulator.c +++ /dev/null @@ -1,75 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#include -#include -#include -#include -#include - -#include "chip.h" - -static void gpio_regulator_fill_ssdt_generator(const struct device *dev) -{ - struct drivers_generic_gpio_regulator_config *config = dev->chip_info; - const char *scope = acpi_device_scope(dev); - const char *path = acpi_device_path(dev); - struct acpi_dp *dsd; - - if (!dev->enabled || !scope || !path || !config->gpio.pin_count) - return; - - /* Device */ - acpigen_write_scope(scope); - acpigen_write_device(acpi_device_name(dev)); - - /* _HID is set to PRP0001 */ - acpigen_write_name_string("_HID", ACPI_DT_NAMESPACE_HID); - - /* Resources - _CRS */ - acpigen_write_name("_CRS"); - acpigen_write_resourcetemplate_header(); - acpi_device_write_gpio(&config->gpio); - acpigen_write_resourcetemplate_footer(); - - /* DSD */ - dsd = acpi_dp_new_table("_DSD"); - acpi_dp_add_string(dsd, "compatible", "regulator-fixed"); - acpi_dp_add_string(dsd, "regulator-name", config->name); - acpi_dp_add_gpio(dsd, "gpio-gpios", path, 0, 0, config->gpio.polarity); - if (config->enabled_on_boot) - acpi_dp_add_string(dsd, "regulator-boot-on", "on"); - if (config->gpio.polarity == ACPI_GPIO_ACTIVE_HIGH) - acpi_dp_add_string(dsd, "enable-active-high", "on"); - acpi_dp_write(dsd); - - acpigen_pop_len(); /* Device */ - acpigen_pop_len(); /* Scope */ -} - -static const char *gpio_regulator_acpi_name(const struct device *dev) -{ - struct drivers_generic_gpio_regulator_config *config = dev->chip_info; - static char name[5]; - - snprintf(name, sizeof(name), "R%03.3X", config->gpio.pins[0]); - name[4] = '\0'; - - return name; -} - -static struct device_operations gpio_regulator_ops = { - .read_resources = noop_read_resources, - .set_resources = noop_set_resources, - .acpi_name = gpio_regulator_acpi_name, - .acpi_fill_ssdt = gpio_regulator_fill_ssdt_generator, -}; - -static void gpio_regulator_enable(struct device *dev) -{ - dev->ops = &gpio_regulator_ops; -} - -struct chip_operations drivers_generic_gpio_regulator_ops = { - CHIP_NAME("GPIO Regulator") - .enable_dev = gpio_regulator_enable -}; -- cgit v1.2.3