diff options
Diffstat (limited to 'drivers/reset')
| -rw-r--r-- | drivers/reset/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/reset/Makefile | 1 | ||||
| -rw-r--r-- | drivers/reset/reset-oxnas.c | 114 |
3 files changed, 0 insertions, 118 deletions
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig index 6aa8f243b30c..b31ccee234e1 100644 --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -143,9 +143,6 @@ config RESET_NPCM This enables the reset controller driver for Nuvoton NPCM BMC SoCs. -config RESET_OXNAS - bool - config RESET_PISTACHIO bool "Pistachio Reset Driver" depends on MIPS || COMPILE_TEST diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile index 7fec5af6c964..acb6f824837d 100644 --- a/drivers/reset/Makefile +++ b/drivers/reset/Makefile @@ -21,7 +21,6 @@ obj-$(CONFIG_RESET_MCHP_SPARX5) += reset-microchip-sparx5.o obj-$(CONFIG_RESET_MESON) += reset-meson.o obj-$(CONFIG_RESET_MESON_AUDIO_ARB) += reset-meson-audio-arb.o obj-$(CONFIG_RESET_NPCM) += reset-npcm.o -obj-$(CONFIG_RESET_OXNAS) += reset-oxnas.o obj-$(CONFIG_RESET_PISTACHIO) += reset-pistachio.o obj-$(CONFIG_RESET_POLARFIRE_SOC) += reset-mpfs.o obj-$(CONFIG_RESET_QCOM_AOSS) += reset-qcom-aoss.o diff --git a/drivers/reset/reset-oxnas.c b/drivers/reset/reset-oxnas.c deleted file mode 100644 index 8209f922dc16..000000000000 --- a/drivers/reset/reset-oxnas.c +++ /dev/null @@ -1,114 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Oxford Semiconductor Reset Controller driver - * - * Copyright (C) 2016 Neil Armstrong <narmstrong@baylibre.com> - * Copyright (C) 2014 Ma Haijun <mahaijuns@gmail.com> - * Copyright (C) 2009 Oxford Semiconductor Ltd - */ -#include <linux/err.h> -#include <linux/init.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/reset-controller.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/types.h> -#include <linux/regmap.h> -#include <linux/mfd/syscon.h> - -/* Regmap offsets */ -#define RST_SET_REGOFFSET 0x34 -#define RST_CLR_REGOFFSET 0x38 - -struct oxnas_reset { - struct regmap *regmap; - struct reset_controller_dev rcdev; -}; - -static int oxnas_reset_reset(struct reset_controller_dev *rcdev, - unsigned long id) -{ - struct oxnas_reset *data = - container_of(rcdev, struct oxnas_reset, rcdev); - - regmap_write(data->regmap, RST_SET_REGOFFSET, BIT(id)); - msleep(50); - regmap_write(data->regmap, RST_CLR_REGOFFSET, BIT(id)); - - return 0; -} - -static int oxnas_reset_assert(struct reset_controller_dev *rcdev, - unsigned long id) -{ - struct oxnas_reset *data = - container_of(rcdev, struct oxnas_reset, rcdev); - - regmap_write(data->regmap, RST_SET_REGOFFSET, BIT(id)); - - return 0; -} - -static int oxnas_reset_deassert(struct reset_controller_dev *rcdev, - unsigned long id) -{ - struct oxnas_reset *data = - container_of(rcdev, struct oxnas_reset, rcdev); - - regmap_write(data->regmap, RST_CLR_REGOFFSET, BIT(id)); - - return 0; -} - -static const struct reset_control_ops oxnas_reset_ops = { - .reset = oxnas_reset_reset, - .assert = oxnas_reset_assert, - .deassert = oxnas_reset_deassert, -}; - -static const struct of_device_id oxnas_reset_dt_ids[] = { - { .compatible = "oxsemi,ox810se-reset", }, - { .compatible = "oxsemi,ox820-reset", }, - { /* sentinel */ }, -}; - -static int oxnas_reset_probe(struct platform_device *pdev) -{ - struct oxnas_reset *data; - struct device *parent; - - parent = pdev->dev.parent; - if (!parent) { - dev_err(&pdev->dev, "no parent\n"); - return -ENODEV; - } - - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->regmap = syscon_node_to_regmap(parent->of_node); - if (IS_ERR(data->regmap)) { - dev_err(&pdev->dev, "failed to get parent regmap\n"); - return PTR_ERR(data->regmap); - } - - platform_set_drvdata(pdev, data); - - data->rcdev.owner = THIS_MODULE; - data->rcdev.nr_resets = 32; - data->rcdev.ops = &oxnas_reset_ops; - data->rcdev.of_node = pdev->dev.of_node; - - return devm_reset_controller_register(&pdev->dev, &data->rcdev); -} - -static struct platform_driver oxnas_reset_driver = { - .probe = oxnas_reset_probe, - .driver = { - .name = "oxnas-reset", - .of_match_table = oxnas_reset_dt_ids, - }, -}; -builtin_platform_driver(oxnas_reset_driver); |