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Date: Fri, 22 Jan 2021 11:50:53 +0100
From: <gabriel.fernandez@...s.st.com>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Etienne Carriere <etienne.carriere@...com>,
Gabriel Fernandez <gabriel.fernandez@...s.st.com>
CC: <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH 06/14] reset: stm32mp1: remove stm32mp1 reset
From: Gabriel Fernandez <gabriel.fernandez@...s.st.com>
st32mp1 RCC reset driver was moved into stm32mp1 RCC clock driver.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...s.st.com>
---
drivers/reset/Kconfig | 6 --
drivers/reset/Makefile | 1 -
drivers/reset/reset-stm32mp1.c | 115 ---------------------------------
3 files changed, 122 deletions(-)
delete mode 100644 drivers/reset/reset-stm32mp1.c
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index df2725e1798e..97c9acc2064e 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -198,12 +198,6 @@ config RESET_SIMPLE
- Allwinner SoCs
- ZTE's zx2967 family
-config RESET_STM32MP157
- bool "STM32MP157 Reset Driver" if COMPILE_TEST
- default MACH_STM32MP157
- help
- This enables the RCC reset controller driver for STM32 MPUs.
-
config RESET_SOCFPGA
bool "SoCFPGA Reset Driver" if COMPILE_TEST && !ARCH_SOCFPGA
default ARCH_SOCFPGA
diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
index 65a118a91b27..ac3e612ad953 100644
--- a/drivers/reset/Makefile
+++ b/drivers/reset/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_RESET_QCOM_PDC) += reset-qcom-pdc.o
obj-$(CONFIG_RESET_RASPBERRYPI) += reset-raspberrypi.o
obj-$(CONFIG_RESET_SCMI) += reset-scmi.o
obj-$(CONFIG_RESET_SIMPLE) += reset-simple.o
-obj-$(CONFIG_RESET_STM32MP157) += reset-stm32mp1.o
obj-$(CONFIG_RESET_SOCFPGA) += reset-socfpga.o
obj-$(CONFIG_RESET_SUNXI) += reset-sunxi.o
obj-$(CONFIG_RESET_TI_SCI) += reset-ti-sci.o
diff --git a/drivers/reset/reset-stm32mp1.c b/drivers/reset/reset-stm32mp1.c
deleted file mode 100644
index b221a28041fa..000000000000
--- a/drivers/reset/reset-stm32mp1.c
+++ /dev/null
@@ -1,115 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) STMicroelectronics 2018 - All Rights Reserved
- * Author: Gabriel Fernandez <gabriel.fernandez@...com> for STMicroelectronics.
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/reset-controller.h>
-
-#define CLR_OFFSET 0x4
-
-struct stm32_reset_data {
- struct reset_controller_dev rcdev;
- void __iomem *membase;
-};
-
-static inline struct stm32_reset_data *
-to_stm32_reset_data(struct reset_controller_dev *rcdev)
-{
- return container_of(rcdev, struct stm32_reset_data, rcdev);
-}
-
-static int stm32_reset_update(struct reset_controller_dev *rcdev,
- unsigned long id, bool assert)
-{
- struct stm32_reset_data *data = to_stm32_reset_data(rcdev);
- int reg_width = sizeof(u32);
- int bank = id / (reg_width * BITS_PER_BYTE);
- int offset = id % (reg_width * BITS_PER_BYTE);
- void __iomem *addr;
-
- addr = data->membase + (bank * reg_width);
- if (!assert)
- addr += CLR_OFFSET;
-
- writel(BIT(offset), addr);
-
- return 0;
-}
-
-static int stm32_reset_assert(struct reset_controller_dev *rcdev,
- unsigned long id)
-{
- return stm32_reset_update(rcdev, id, true);
-}
-
-static int stm32_reset_deassert(struct reset_controller_dev *rcdev,
- unsigned long id)
-{
- return stm32_reset_update(rcdev, id, false);
-}
-
-static int stm32_reset_status(struct reset_controller_dev *rcdev,
- unsigned long id)
-{
- struct stm32_reset_data *data = to_stm32_reset_data(rcdev);
- int reg_width = sizeof(u32);
- int bank = id / (reg_width * BITS_PER_BYTE);
- int offset = id % (reg_width * BITS_PER_BYTE);
- u32 reg;
-
- reg = readl(data->membase + (bank * reg_width));
-
- return !!(reg & BIT(offset));
-}
-
-static const struct reset_control_ops stm32_reset_ops = {
- .assert = stm32_reset_assert,
- .deassert = stm32_reset_deassert,
- .status = stm32_reset_status,
-};
-
-static const struct of_device_id stm32_reset_dt_ids[] = {
- { .compatible = "st,stm32mp1-rcc"},
- { /* sentinel */ },
-};
-
-static int stm32_reset_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct stm32_reset_data *data;
- void __iomem *membase;
- struct resource *res;
-
- data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- membase = devm_ioremap_resource(dev, res);
- if (IS_ERR(membase))
- return PTR_ERR(membase);
-
- data->membase = membase;
- data->rcdev.owner = THIS_MODULE;
- data->rcdev.nr_resets = resource_size(res) * BITS_PER_BYTE;
- data->rcdev.ops = &stm32_reset_ops;
- data->rcdev.of_node = dev->of_node;
-
- return devm_reset_controller_register(dev, &data->rcdev);
-}
-
-static struct platform_driver stm32_reset_driver = {
- .probe = stm32_reset_probe,
- .driver = {
- .name = "stm32mp1-reset",
- .of_match_table = stm32_reset_dt_ids,
- },
-};
-
-builtin_platform_driver(stm32_reset_driver);
--
2.17.1
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