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authorNeil Armstrong <neil.armstrong@linaro.org>2023-03-31 11:34:55 +0300
committerPhilipp Zabel <p.zabel@pengutronix.de>2023-05-08 10:28:31 +0300
commitac59ed9cdb80bdb7f6584af5253790f51a9404a7 (patch)
treeec729e1b2a549fe12348daefffcbb4afb7b1ca10 /drivers/reset
parent20a6a4d7226691473cde40ed1e1f03964cbd5be7 (diff)
downloadlinux-ac59ed9cdb80bdb7f6584af5253790f51a9404a7.tar.xz
reset: oxnas: remove obsolete reset driver
Due to lack of maintainance and stall of development for a few years now, and since no new features will ever be added upstream, remove support for OX810 and OX820 peripheral reset. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Acked-by: Daniel Golle <daniel@makrotopia.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20230331-topic-oxnas-upstream-remove-v1-17-5bd58fd1dd1f@linaro.org Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/reset')
-rw-r--r--drivers/reset/Kconfig3
-rw-r--r--drivers/reset/Makefile1
-rw-r--r--drivers/reset/reset-oxnas.c114
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);