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Message-ID: <1619466246-11198-1-git-send-email-min.li.xe@renesas.com>
Date: Mon, 26 Apr 2021 15:44:06 -0400
From: <min.li.xe@...esas.com>
To: <sameo@...ux.intel.com>, <lee.jones@...aro.org>,
<grant.likely@...aro.org>, <robh+dt@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
Min Li <min.li.xe@...esas.com>
Subject: [PATCH mfd v1] mfd: Add Renesas Synchronization Management Unit (SMU) support
From: Min Li <min.li.xe@...esas.com>
Add support for ClockMatrix(TM) and 82P33xxx families of timing
and synchronization devices. The access interface can be either
SPI or I2C. Currently, it will create 2 types of MFD devices,
which are to be used by the corresponding rsmu character device
driver and the PTP hardware clock driver, respectively.
Signed-off-by: Min Li <min.li.xe@...esas.com>
---
drivers/mfd/Kconfig | 28 ++
drivers/mfd/Makefile | 3 +
drivers/mfd/rsmu_i2c.c | 349 +++++++++++++++++
drivers/mfd/rsmu_private.h | 32 ++
drivers/mfd/rsmu_spi.c | 376 ++++++++++++++++++
include/linux/mfd/idt82p33_reg.h | 116 ++++++
include/linux/mfd/idt8a340_reg.h | 817 +++++++++++++++++++++++++++++++++++++++
include/linux/mfd/rsmu.h | 54 +++
8 files changed, 1775 insertions(+)
create mode 100644 drivers/mfd/rsmu_i2c.c
create mode 100644 drivers/mfd/rsmu_private.h
create mode 100644 drivers/mfd/rsmu_spi.c
create mode 100644 include/linux/mfd/idt82p33_reg.h
create mode 100644 include/linux/mfd/idt8a340_reg.h
create mode 100644 include/linux/mfd/rsmu.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 21a131d..63b18b3 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -2172,5 +2172,33 @@ config MFD_INTEL_M10_BMC
additional drivers must be enabled in order to use the functionality
of the device.
+config MFD_RSMU_I2C
+ tristate "Renesas Synchronization Management Unit with I2C"
+ depends on I2C && OF
+ depends on MFD_RSMU_SPI=n
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Support for the Renesas synchronization management unit, such as
+ Clockmatrix and 82P33XXX series. This option supports I2C as
+ the control interface.
+
+ This driver provides common support for accessing the device,
+ additional drivers must be enabled in order to use the functionality
+ of the device.
+
+config MFD_RSMU_SPI
+ tristate "Renesas Synchronization Management Unit with SPI"
+ depends on SPI && OF
+ select MFD_CORE
+ help
+ Support for the Renesas synchronization management unit, such as
+ Clockmatrix and 82P33XXX series. This option supports SPI as
+ the control interface.
+
+ This driver provides common support for accessing the device,
+ additional drivers must be enabled in order to use the functionality
+ of the device.
+
endmenu
endif
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 4f6d2b8..4ab32ef 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -271,3 +271,6 @@ obj-$(CONFIG_MFD_INTEL_M10_BMC) += intel-m10-bmc.o
obj-$(CONFIG_MFD_ATC260X) += atc260x-core.o
obj-$(CONFIG_MFD_ATC260X_I2C) += atc260x-i2c.o
+
+obj-$(CONFIG_MFD_RSMU_I2C) += rsmu_i2c.o
+obj-$(CONFIG_MFD_RSMU_SPI) += rsmu_spi.o
diff --git a/drivers/mfd/rsmu_i2c.c b/drivers/mfd/rsmu_i2c.c
new file mode 100644
index 0000000..2349f6d
--- /dev/null
+++ b/drivers/mfd/rsmu_i2c.c
@@ -0,0 +1,349 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Multi-function driver for the IDT ClockMatrix(TM) and 82P33xxx families of
+ * timing and synchronization devices.
+ *
+ * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/of.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rsmu.h>
+#include "rsmu_private.h"
+
+/*
+ * 16-bit register address: the lower 8 bits of the register address come
+ * from the offset addr byte and the upper 8 bits come from the page register.
+ */
+#define RSMU_CM_PAGE_ADDR 0xFD
+#define RSMU_CM_PAGE_WINDOW 256
+
+/*
+ * 15-bit register address: the lower 7 bits of the register address come
+ * from the offset addr byte and the upper 8 bits come from the page register.
+ */
+#define RSMU_SABRE_PAGE_ADDR 0x7F
+#define RSMU_SABRE_PAGE_WINDOW 128
+
+static bool rsmu_cm_volatile_reg(struct device *dev, unsigned int reg);
+static bool rsmu_sabre_volatile_reg(struct device *dev, unsigned int reg);
+
+/* Current mfd device index */
+static atomic_t rsmu_ndevs = ATOMIC_INIT(0);
+
+/* Platform data */
+static struct rsmu_pdata rsmu_pdata[RSMU_MAX_MFD_DEV];
+
+/* clockmatrix phc devices */
+static struct mfd_cell rsmu_cm_pdev[RSMU_MAX_MFD_DEV] = {
+ [0] = {
+ .name = "idtcm-ptp0",
+ .of_compatible = "renesas,idtcm-ptp0",
+ },
+ [1] = {
+ .name = "idtcm-ptp1",
+ .of_compatible = "renesas,idtcm-ptp1",
+ },
+ [2] = {
+ .name = "idtcm-ptp2",
+ .of_compatible = "renesas,idtcm-ptp2",
+ },
+ [3] = {
+ .name = "idtcm-ptp3",
+ .of_compatible = "renesas,idtcm-ptp3",
+ },
+};
+
+/* sabre phc devices */
+static struct mfd_cell rsmu_sabre_pdev[RSMU_MAX_MFD_DEV] = {
+ [0] = {
+ .name = "idt82p33-ptp0",
+ .of_compatible = "renesas,idt82p33-ptp0",
+ },
+ [1] = {
+ .name = "idt82p33-ptp1",
+ .of_compatible = "renesas,idt82p33-ptp1",
+ },
+ [2] = {
+ .name = "idt82p33-ptp2",
+ .of_compatible = "renesas,idt82p33-ptp2",
+ },
+ [3] = {
+ .name = "idt82p33-ptp3",
+ .of_compatible = "renesas,idt82p33-ptp3",
+ },
+};
+
+/* rsmu character devices */
+static struct mfd_cell rsmu_cdev[RSMU_MAX_MFD_DEV] = {
+ [0] = {
+ .name = "rsmu-cdev0",
+ .of_compatible = "renesas,rsmu-cdev0",
+ },
+ [1] = {
+ .name = "rsmu-cdev1",
+ .of_compatible = "renesas,rsmu-cdev1",
+ },
+ [2] = {
+ .name = "rsmu-cdev2",
+ .of_compatible = "renesas,rsmu-cdev2",
+ },
+ [3] = {
+ .name = "rsmu-cdev3",
+ .of_compatible = "renesas,rsmu-cdev3",
+ },
+};
+
+static const struct regmap_range_cfg rsmu_cm_range_cfg[] = {
+ {
+ .range_min = 0,
+ .range_max = 0xD000,
+ .selector_reg = RSMU_CM_PAGE_ADDR,
+ .selector_mask = 0xFF,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = RSMU_CM_PAGE_WINDOW,
+ }
+};
+
+static const struct regmap_range_cfg rsmu_sabre_range_cfg[] = {
+ {
+ .range_min = 0,
+ .range_max = 0x400,
+ .selector_reg = RSMU_SABRE_PAGE_ADDR,
+ .selector_mask = 0xFF,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = RSMU_SABRE_PAGE_WINDOW,
+ }
+};
+
+static const struct regmap_config rsmu_regmap_configs[] = {
+ [RSMU_CM] = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xD000,
+ .ranges = rsmu_cm_range_cfg,
+ .num_ranges = ARRAY_SIZE(rsmu_cm_range_cfg),
+ .volatile_reg = rsmu_cm_volatile_reg,
+ .cache_type = REGCACHE_RBTREE,
+ .can_multi_write = true,
+ },
+ [RSMU_SABRE] = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0x400,
+ .ranges = rsmu_sabre_range_cfg,
+ .num_ranges = ARRAY_SIZE(rsmu_sabre_range_cfg),
+ .volatile_reg = rsmu_sabre_volatile_reg,
+ .cache_type = REGCACHE_RBTREE,
+ .can_multi_write = true,
+ },
+};
+
+static bool rsmu_cm_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case RSMU_CM_PAGE_ADDR:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static bool rsmu_sabre_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case RSMU_SABRE_PAGE_ADDR:
+ return false;
+ default:
+ return true;
+ }
+}
+
+int rsmu_read(struct device *dev, u16 reg, u8 *buf, u16 size)
+{
+ struct rsmu_dev *rsmu = dev_get_drvdata(dev);
+
+ return regmap_bulk_read(rsmu->regmap, reg, buf, size);
+}
+EXPORT_SYMBOL_GPL(rsmu_read);
+
+int rsmu_write(struct device *dev, u16 reg, u8 *buf, u16 size)
+{
+ struct rsmu_dev *rsmu = dev_get_drvdata(dev);
+
+ return regmap_bulk_write(rsmu->regmap, reg, buf, size);
+}
+EXPORT_SYMBOL_GPL(rsmu_write);
+
+static int rsmu_mfd_init(struct rsmu_dev *rsmu, struct mfd_cell *mfd,
+ struct rsmu_pdata *pdata)
+{
+ int ret;
+
+ mfd->platform_data = pdata;
+ mfd->pdata_size = sizeof(struct rsmu_pdata);
+
+ ret = mfd_add_devices(rsmu->dev, -1, mfd, 1, NULL, 0, NULL);
+ if (ret < 0) {
+ dev_err(rsmu->dev, "mfd_add_devices failed with %s\n",
+ mfd->name);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int rsmu_dev_init(struct rsmu_dev *rsmu)
+{
+ struct rsmu_pdata *pdata;
+ struct mfd_cell *pmfd;
+ struct mfd_cell *cmfd;
+ int ret;
+
+ /* Initialize regmap */
+ rsmu->regmap = devm_regmap_init_i2c(rsmu->client,
+ &rsmu_regmap_configs[rsmu->type]);
+ if (IS_ERR(rsmu->regmap)) {
+ ret = PTR_ERR(rsmu->regmap);
+ dev_err(rsmu->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ /* Initialize device index */
+ rsmu->index = atomic_read(&rsmu_ndevs);
+ if (rsmu->index >= RSMU_MAX_MFD_DEV)
+ return -ENODEV;
+
+ /* Initialize platform data */
+ pdata = &rsmu_pdata[rsmu->index];
+ pdata->lock = &rsmu->lock;
+ pdata->type = rsmu->type;
+ pdata->index = rsmu->index;
+
+ /* Initialize MFD devices */
+ cmfd = &rsmu_cdev[rsmu->index];
+ if (rsmu->type == RSMU_CM)
+ pmfd = &rsmu_cm_pdev[rsmu->index];
+ else if (rsmu->type == RSMU_SABRE)
+ pmfd = &rsmu_sabre_pdev[rsmu->index];
+ else
+ return -EINVAL;
+
+ ret = rsmu_mfd_init(rsmu, pmfd, pdata);
+ if (ret)
+ return ret;
+
+ ret = rsmu_mfd_init(rsmu, cmfd, pdata);
+ if (ret)
+ return ret;
+
+ atomic_inc(&rsmu_ndevs);
+ return 0;
+}
+
+static int rsmu_dt_init(struct rsmu_dev *rsmu)
+{
+ struct device_node *np = rsmu->dev->of_node;
+
+ rsmu->type = RSMU_NONE;
+ if (of_device_is_compatible(np, "idt,8a34000")) {
+ rsmu->type = RSMU_CM;
+ } else if (of_device_is_compatible(np, "idt,82p33810")) {
+ rsmu->type = RSMU_SABRE;
+ } else {
+ dev_err(rsmu->dev, "unknown RSMU device\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rsmu_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ struct rsmu_dev *rsmu;
+ int ret;
+
+ rsmu = devm_kzalloc(&client->dev, sizeof(struct rsmu_dev),
+ GFP_KERNEL);
+ if (rsmu == NULL)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, rsmu);
+ mutex_init(&rsmu->lock);
+ rsmu->dev = &client->dev;
+ rsmu->client = client;
+
+ ret = rsmu_dt_init(rsmu);
+ if (ret)
+ return ret;
+
+ mutex_lock(&rsmu->lock);
+ ret = rsmu_dev_init(rsmu);
+ mutex_unlock(&rsmu->lock);
+
+ if (ret == 0)
+ dev_info(rsmu->dev, "Probe %s successful\n",
+ rsmu_name(rsmu->type));
+
+ return ret;
+}
+
+static int rsmu_remove(struct i2c_client *client)
+{
+ struct rsmu_dev *rsmu = i2c_get_clientdata(client);
+
+ mfd_remove_devices(&client->dev);
+ mutex_destroy(&rsmu->lock);
+ atomic_dec(&rsmu_ndevs);
+
+ return 0;
+}
+
+static const struct i2c_device_id rsmu_id[] = {
+ { "8a34000", 0 },
+ { "82p33810", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, rsmu_id);
+
+static const struct of_device_id rsmu_of_match[] = {
+ {.compatible = "idt,8a34000", },
+ {.compatible = "idt,82p33810", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsmu_of_match);
+
+static struct i2c_driver rsmu_driver = {
+ .driver = {
+ .name = "rsmu-i2c",
+ .of_match_table = of_match_ptr(rsmu_of_match),
+ },
+ .probe = rsmu_probe,
+ .remove = rsmu_remove,
+ .id_table = rsmu_id,
+};
+
+static int __init rsmu_init(void)
+{
+ return i2c_add_driver(&rsmu_driver);
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(rsmu_init);
+
+static void __exit rsmu_exit(void)
+{
+ i2c_del_driver(&rsmu_driver);
+}
+module_exit(rsmu_exit);
+
+MODULE_DESCRIPTION("Renesas SMU I2C multi-function driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/rsmu_private.h b/drivers/mfd/rsmu_private.h
new file mode 100644
index 0000000..8841a24
--- /dev/null
+++ b/drivers/mfd/rsmu_private.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Multi-function driver for the IDT ClockMatrix(TM) and 82p33xxx families of
+ * timing and synchronization devices.
+ *
+ * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company.
+ */
+
+#ifndef __RSMU_MFD_PRIVATE_H
+#define __RSMU_MFD_PRIVATE_H
+
+#include <linux/mfd/rsmu.h>
+
+/* Maximum number of mfd devices */
+#define RSMU_MAX_MFD_DEV 4
+
+struct rsmu_dev {
+ struct device *dev;
+ void *client;
+ struct regmap *regmap;
+ struct mutex lock;
+ enum rsmu_type type;
+ u8 index;
+ u16 page;
+};
+
+enum rsmu_mfd_type {
+ RSMU_MFD_PTP = 0,
+ RSMU_MFD_CDEV = 1,
+ RSMU_MFD_NUM = 2,
+};
+#endif /* __LINUX_MFD_RSMU_H */
diff --git a/drivers/mfd/rsmu_spi.c b/drivers/mfd/rsmu_spi.c
new file mode 100644
index 0000000..a9fbe04
--- /dev/null
+++ b/drivers/mfd/rsmu_spi.c
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Multi-function driver for the IDT ClockMatrix(TM) and 82P33xxx families of
+ * timing and synchronization devices.
+ *
+ * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+#include <linux/of.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rsmu.h>
+#include "rsmu_private.h"
+
+/*
+ * 16-bit register address: the lower 7 bits of the register address come
+ * from the offset addr byte and the upper 9 bits come from the page register.
+ */
+#define RSMU_CM_PAGE_ADDR 0x7C
+#define RSMU_SABRE_PAGE_ADDR 0x7F
+#define RSMU_HIGHER_ADDR_MASK 0xFF80
+#define RSMU_HIGHER_ADDR_SHIFT 7
+#define RSMU_LOWER_ADDR_MASK 0x7F
+
+/* Current mfd device index */
+static atomic_t rsmu_ndevs = ATOMIC_INIT(0);
+
+/* Platform data */
+static struct rsmu_pdata rsmu_pdata[RSMU_MAX_MFD_DEV];
+
+/* clockmatrix phc devices */
+static struct mfd_cell rsmu_cm_pdev[RSMU_MAX_MFD_DEV] = {
+ [0] = {
+ .name = "idtcm-ptp0",
+ .of_compatible = "renesas,idtcm-ptp0",
+ },
+ [1] = {
+ .name = "idtcm-ptp1",
+ .of_compatible = "renesas,idtcm-ptp1",
+ },
+ [2] = {
+ .name = "idtcm-ptp2",
+ .of_compatible = "renesas,idtcm-ptp2",
+ },
+ [3] = {
+ .name = "idtcm-ptp3",
+ .of_compatible = "renesas,idtcm-ptp3",
+ },
+};
+
+/* sabre phc devices */
+static struct mfd_cell rsmu_sabre_pdev[RSMU_MAX_MFD_DEV] = {
+ [0] = {
+ .name = "idt82p33-ptp0",
+ .of_compatible = "renesas,idt82p33-ptp0",
+ },
+ [1] = {
+ .name = "idt82p33-ptp1",
+ .of_compatible = "renesas,idt82p33-ptp1",
+ },
+ [2] = {
+ .name = "idt82p33-ptp2",
+ .of_compatible = "renesas,idt82p33-ptp2",
+ },
+ [3] = {
+ .name = "idt82p33-ptp3",
+ .of_compatible = "renesas,idt82p33-ptp3",
+ },
+};
+
+/* rsmu character devices */
+static struct mfd_cell rsmu_cdev[RSMU_MAX_MFD_DEV] = {
+ [0] = {
+ .name = "rsmu-cdev0",
+ .of_compatible = "renesas,rsmu-cdev0",
+ },
+ [1] = {
+ .name = "rsmu-cdev1",
+ .of_compatible = "renesas,rsmu-cdev1",
+ },
+ [2] = {
+ .name = "rsmu-cdev2",
+ .of_compatible = "renesas,rsmu-cdev2",
+ },
+ [3] = {
+ .name = "rsmu-cdev3",
+ .of_compatible = "renesas,rsmu-cdev3",
+ },
+};
+
+static int rsmu_read_device(struct rsmu_dev *rsmu, u8 reg, u8 *buf, u16 bytes)
+{
+ struct spi_device *client = rsmu->client;
+ struct spi_transfer xfer = {0};
+ struct spi_message msg;
+ u8 cmd[256] = {0};
+ u8 rsp[256] = {0};
+ int ret;
+
+ cmd[0] = reg | 0x80;
+ xfer.rx_buf = rsp;
+ xfer.len = bytes + 1;
+ xfer.tx_buf = cmd;
+ xfer.bits_per_word = client->bits_per_word;
+ xfer.speed_hz = client->max_speed_hz;
+
+ spi_message_init(&msg);
+ spi_message_add_tail(&xfer, &msg);
+
+ ret = spi_sync(client, &msg);
+ if (ret >= 0)
+ memcpy(buf, &rsp[1], xfer.len-1);
+
+ return ret;
+}
+
+static int rsmu_write_device(struct rsmu_dev *rsmu, u8 reg, u8 *buf, u16 bytes)
+{
+ struct spi_device *client = rsmu->client;
+ struct spi_transfer xfer = {0};
+ struct spi_message msg;
+ u8 cmd[256] = {0};
+ int ret = -1;
+
+ cmd[0] = reg;
+ memcpy(&cmd[1], buf, bytes);
+
+ xfer.len = bytes + 1;
+ xfer.tx_buf = cmd;
+ xfer.bits_per_word = client->bits_per_word;
+ xfer.speed_hz = client->max_speed_hz;
+ spi_message_init(&msg);
+ spi_message_add_tail(&xfer, &msg);
+
+ ret = spi_sync(client, &msg);
+ return ret;
+}
+
+static int rsmu_write_page_register(struct rsmu_dev *rsmu, u16 reg)
+{
+ u8 buf[2];
+ u16 bytes;
+ u16 page;
+ u8 preg;
+ int err;
+
+ switch (rsmu->type) {
+ case RSMU_CM:
+ preg = RSMU_CM_PAGE_ADDR;
+ page = reg & RSMU_HIGHER_ADDR_MASK;
+ buf[0] = (u8)(page & 0xff);
+ buf[1] = (u8)((page >> 8) & 0xff);
+ bytes = 2;
+ break;
+ case RSMU_SABRE:
+ preg = RSMU_SABRE_PAGE_ADDR;
+ page = reg >> RSMU_HIGHER_ADDR_SHIFT;
+ buf[0] = (u8)(page & 0xff);
+ bytes = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (rsmu->page == page)
+ return 0;
+
+ err = rsmu_write_device(rsmu, preg, buf, bytes);
+
+ if (err) {
+ rsmu->page = 0xffff;
+ dev_err(rsmu->dev,
+ "failed to set page offset 0x%x\n", page);
+ } else {
+ rsmu->page = page;
+ }
+
+ return err;
+}
+
+int rsmu_read(struct device *dev, u16 reg, u8 *buf, u16 size)
+{
+ struct rsmu_dev *rsmu = dev_get_drvdata(dev);
+ u8 addr = (u8)(reg & RSMU_LOWER_ADDR_MASK);
+ int err;
+
+ err = rsmu_write_page_register(rsmu, reg);
+ if (err)
+ return err;
+
+ err = rsmu_read_device(rsmu, addr, buf, size);
+ if (err)
+ dev_err(rsmu->dev,
+ "failed to read offset address 0x%x\n", addr);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(rsmu_read);
+
+int rsmu_write(struct device *dev, u16 reg, u8 *buf, u16 size)
+{
+ struct rsmu_dev *rsmu = dev_get_drvdata(dev);
+ u8 addr = (u8)(reg & RSMU_LOWER_ADDR_MASK);
+ int err;
+
+ err = rsmu_write_page_register(rsmu, reg);
+ if (err)
+ return err;
+
+ err = rsmu_write_device(rsmu, addr, buf, size);
+ if (err)
+ dev_err(rsmu->dev,
+ "failed to write offset address 0x%x\n", addr);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(rsmu_write);
+
+static int rsmu_mfd_init(struct rsmu_dev *rsmu, struct mfd_cell *mfd,
+ struct rsmu_pdata *pdata)
+{
+ int ret;
+
+ mfd->platform_data = pdata;
+ mfd->pdata_size = sizeof(struct rsmu_pdata);
+
+ ret = mfd_add_devices(rsmu->dev, -1, mfd, 1, NULL, 0, NULL);
+ if (ret < 0) {
+ dev_err(rsmu->dev, "mfd_add_devices failed with %s\n",
+ mfd->name);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int rsmu_dev_init(struct rsmu_dev *rsmu)
+{
+ struct rsmu_pdata *pdata;
+ struct mfd_cell *pmfd;
+ struct mfd_cell *cmfd;
+ int ret;
+
+ /* Initialize device index */
+ rsmu->index = atomic_read(&rsmu_ndevs);
+ if (rsmu->index >= RSMU_MAX_MFD_DEV)
+ return -ENODEV;
+
+ /* Initialize platform data */
+ pdata = &rsmu_pdata[rsmu->index];
+ pdata->lock = &rsmu->lock;
+ pdata->type = rsmu->type;
+ pdata->index = rsmu->index;
+
+ /* Initialize MFD devices */
+ cmfd = &rsmu_cdev[rsmu->index];
+ if (rsmu->type == RSMU_CM)
+ pmfd = &rsmu_cm_pdev[rsmu->index];
+ else if (rsmu->type == RSMU_SABRE)
+ pmfd = &rsmu_sabre_pdev[rsmu->index];
+ else
+ return -EINVAL;
+
+ ret = rsmu_mfd_init(rsmu, pmfd, pdata);
+ if (ret)
+ return ret;
+
+ ret = rsmu_mfd_init(rsmu, cmfd, pdata);
+ if (ret)
+ return ret;
+
+ atomic_inc(&rsmu_ndevs);
+ return 0;
+}
+
+static int rsmu_dt_init(struct rsmu_dev *rsmu)
+{
+ struct device_node *np = rsmu->dev->of_node;
+
+ rsmu->type = RSMU_NONE;
+ if (of_device_is_compatible(np, "idt,8a34000")) {
+ rsmu->type = RSMU_CM;
+ } else if (of_device_is_compatible(np, "idt,82p33810")) {
+ rsmu->type = RSMU_SABRE;
+ } else {
+ dev_err(rsmu->dev, "unknown RSMU device\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rsmu_probe(struct spi_device *client)
+{
+ struct rsmu_dev *rsmu;
+ int ret;
+
+ rsmu = devm_kzalloc(&client->dev, sizeof(struct rsmu_dev), GFP_KERNEL);
+ if (rsmu == NULL)
+ return -ENOMEM;
+
+ spi_set_drvdata(client, rsmu);
+ mutex_init(&rsmu->lock);
+ rsmu->dev = &client->dev;
+ rsmu->client = client;
+
+ ret = rsmu_dt_init(rsmu);
+ if (ret)
+ return ret;
+
+ mutex_lock(&rsmu->lock);
+ ret = rsmu_dev_init(rsmu);
+ mutex_unlock(&rsmu->lock);
+
+ if (ret == 0)
+ dev_info(rsmu->dev, "Probe %s successful\n",
+ rsmu_name(rsmu->type));
+
+ return ret;
+}
+
+static int rsmu_remove(struct spi_device *client)
+{
+ struct rsmu_dev *rsmu = spi_get_drvdata(client);
+
+ mfd_remove_devices(&client->dev);
+ mutex_destroy(&rsmu->lock);
+ atomic_dec(&rsmu_ndevs);
+
+ return 0;
+}
+
+static const struct spi_device_id rsmu_id[] = {
+ { "8a34000", 0 },
+ { "82p33810", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, rsmu_id);
+
+static const struct of_device_id rsmu_of_match[] = {
+ {.compatible = "idt,8a34000", },
+ {.compatible = "idt,82p33810", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsmu_of_match);
+
+static struct spi_driver rsmu_driver = {
+ .driver = {
+ .name = "rsmu-spi",
+ .of_match_table = of_match_ptr(rsmu_of_match),
+ },
+ .probe = rsmu_probe,
+ .remove = rsmu_remove,
+ .id_table = rsmu_id,
+};
+
+static int __init rsmu_init(void)
+{
+ return spi_register_driver(&rsmu_driver);
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(rsmu_init);
+
+static void __exit rsmu_exit(void)
+{
+ spi_unregister_driver(&rsmu_driver);
+}
+module_exit(rsmu_exit);
+
+MODULE_DESCRIPTION("Renesas SMU SPI multi-function driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/idt82p33_reg.h b/include/linux/mfd/idt82p33_reg.h
new file mode 100644
index 0000000..50872b0
--- /dev/null
+++ b/include/linux/mfd/idt82p33_reg.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* idt82p33_reg.h
+ *
+ * Register Map - AN888_SMUforIEEE_SynchEther_82P33xxx_RevH.pdf
+ *
+ */
+#ifndef HAVE_IDT82P33_REG
+#define HAVE_IDT82P33_REG
+
+/* Register address */
+#define REG_ADDR(page, offset) (((page) << 0x7) | ((offset) & 0x7f))
+
+#define PAGE_ADDR 0x7F
+
+#define DPLL1_TOD_CNFG 0x134
+#define DPLL2_TOD_CNFG 0x1B4
+
+#define DPLL1_TOD_STS 0x10B
+#define DPLL2_TOD_STS 0x18B
+
+#define DPLL1_TOD_TRIGGER 0x115
+#define DPLL2_TOD_TRIGGER 0x195
+
+#define DPLL1_OPERATING_MODE_CNFG 0x120
+#define DPLL2_OPERATING_MODE_CNFG 0x1A0
+
+#define DPLL1_HOLDOVER_FREQ_CNFG 0x12C
+#define DPLL2_HOLDOVER_FREQ_CNFG 0x1AC
+
+#define DPLL1_PHASE_OFFSET_CNFG 0x143
+#define DPLL2_PHASE_OFFSET_CNFG 0x1C3
+
+#define DPLL1_SYNC_EDGE_CNFG 0x140
+#define DPLL2_SYNC_EDGE_CNFG 0x1C0
+
+#define DPLL1_INPUT_MODE_CNFG 0x116
+#define DPLL2_INPUT_MODE_CNFG 0x196
+
+#define DPLL1_OPERATING_STS 0x102
+#define DPLL2_OPERATING_STS 0x182
+
+#define DPLL1_CURRENT_FREQ_STS 0x103
+#define DPLL2_CURRENT_FREQ_STS 0x183
+
+#define REG_SOFT_RESET 0X381
+
+#define OUT_MUX_CNFG(outn) REG_ADDR(0x6, (0xC * (outn)))
+
+/* Register bit definitions */
+#define SYNC_TOD BIT(1)
+#define PH_OFFSET_EN BIT(7)
+#define SQUELCH_ENABLE BIT(5)
+
+/* Bit definitions for the DPLL_MODE register */
+#define PLL_MODE_SHIFT (0)
+#define PLL_MODE_MASK (0x1F)
+#define COMBO_MODE_EN BIT(5)
+#define COMBO_MODE_SHIFT (6)
+#define COMBO_MODE_MASK (0x3)
+
+/* Bit definitions for DPLL_OPERATING_STS register */
+#define OPERATING_STS_MASK (0x7)
+#define OPERATING_STS_SHIFT (0x0)
+
+/* Bit definitions for DPLL_TOD_TRIGGER register */
+#define READ_TRIGGER_MASK (0xF)
+#define READ_TRIGGER_SHIFT (0x0)
+#define WRITE_TRIGGER_MASK (0xF0)
+#define WRITE_TRIGGER_SHIFT (0x4)
+
+/* Bit definitions for REG_SOFT_RESET register */
+#define SOFT_RESET_EN BIT(7)
+
+enum pll_mode {
+ PLL_MODE_MIN = 0,
+ PLL_MODE_AUTOMATIC = PLL_MODE_MIN,
+ PLL_MODE_FORCE_FREERUN = 1,
+ PLL_MODE_FORCE_HOLDOVER = 2,
+ PLL_MODE_FORCE_LOCKED = 4,
+ PLL_MODE_FORCE_PRE_LOCKED2 = 5,
+ PLL_MODE_FORCE_PRE_LOCKED = 6,
+ PLL_MODE_FORCE_LOST_PHASE = 7,
+ PLL_MODE_DCO = 10,
+ PLL_MODE_WPH = 18,
+ PLL_MODE_MAX = PLL_MODE_WPH,
+};
+
+enum hw_tod_trig_sel {
+ HW_TOD_TRIG_SEL_MIN = 0,
+ HW_TOD_TRIG_SEL_NO_WRITE = HW_TOD_TRIG_SEL_MIN,
+ HW_TOD_TRIG_SEL_NO_READ = HW_TOD_TRIG_SEL_MIN,
+ HW_TOD_TRIG_SEL_SYNC_SEL = 1,
+ HW_TOD_TRIG_SEL_IN12 = 2,
+ HW_TOD_TRIG_SEL_IN13 = 3,
+ HW_TOD_TRIG_SEL_IN14 = 4,
+ HW_TOD_TRIG_SEL_TOD_PPS = 5,
+ HW_TOD_TRIG_SEL_TIMER_INTERVAL = 6,
+ HW_TOD_TRIG_SEL_MSB_PHASE_OFFSET_CNFG = 7,
+ HW_TOD_TRIG_SEL_MSB_HOLDOVER_FREQ_CNFG = 8,
+ HW_TOD_WR_TRIG_SEL_MSB_TOD_CNFG = 9,
+ HW_TOD_RD_TRIG_SEL_LSB_TOD_STS = HW_TOD_WR_TRIG_SEL_MSB_TOD_CNFG,
+ WR_TRIG_SEL_MAX = HW_TOD_WR_TRIG_SEL_MSB_TOD_CNFG,
+};
+
+/** @brief Enumerated type listing DPLL operational modes */
+enum dpll_state {
+ DPLL_STATE_FREERUN = 1,
+ DPLL_STATE_HOLDOVER = 2,
+ DPLL_STATE_LOCKED = 4,
+ DPLL_STATE_PRELOCKED2 = 5,
+ DPLL_STATE_PRELOCKED = 6,
+ DPLL_STATE_LOSTPHASE = 7,
+ DPLL_STATE_MAX
+};
+
+#endif
diff --git a/include/linux/mfd/idt8a340_reg.h b/include/linux/mfd/idt8a340_reg.h
new file mode 100644
index 0000000..e8868cd
--- /dev/null
+++ b/include/linux/mfd/idt8a340_reg.h
@@ -0,0 +1,817 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* idt8a340_reg.h
+ *
+ * Originally generated by regen.tcl on Thu Feb 14 19:23:44 PST 2019
+ * https://github.com/richardcochran/regen
+ *
+ * Hand modified to include some HW registers.
+ * Based on 4.8.0, SCSR rev C commit a03c7ae5
+ */
+#ifndef HAVE_IDT8A340_REG
+#define HAVE_IDT8A340_REG
+
+#define PAGE_ADDR_BASE 0x0000
+#define PAGE_ADDR 0x00fc
+
+#define HW_REVISION 0x8180
+#define REV_ID 0x007a
+
+#define HW_DPLL_0 (0x8a00)
+#define HW_DPLL_1 (0x8b00)
+#define HW_DPLL_2 (0x8c00)
+#define HW_DPLL_3 (0x8d00)
+#define HW_DPLL_4 (0x8e00)
+#define HW_DPLL_5 (0x8f00)
+#define HW_DPLL_6 (0x9000)
+#define HW_DPLL_7 (0x9100)
+
+#define HW_DPLL_TOD_SW_TRIG_ADDR__0 (0x080)
+#define HW_DPLL_TOD_CTRL_1 (0x089)
+#define HW_DPLL_TOD_CTRL_2 (0x08A)
+#define HW_DPLL_TOD_OVR__0 (0x098)
+#define HW_DPLL_TOD_OUT_0__0 (0x0B0)
+
+#define HW_Q0_Q1_CH_SYNC_CTRL_0 (0xa740)
+#define HW_Q0_Q1_CH_SYNC_CTRL_1 (0xa741)
+#define HW_Q2_Q3_CH_SYNC_CTRL_0 (0xa742)
+#define HW_Q2_Q3_CH_SYNC_CTRL_1 (0xa743)
+#define HW_Q4_Q5_CH_SYNC_CTRL_0 (0xa744)
+#define HW_Q4_Q5_CH_SYNC_CTRL_1 (0xa745)
+#define HW_Q6_Q7_CH_SYNC_CTRL_0 (0xa746)
+#define HW_Q6_Q7_CH_SYNC_CTRL_1 (0xa747)
+#define HW_Q8_CH_SYNC_CTRL_0 (0xa748)
+#define HW_Q8_CH_SYNC_CTRL_1 (0xa749)
+#define HW_Q9_CH_SYNC_CTRL_0 (0xa74a)
+#define HW_Q9_CH_SYNC_CTRL_1 (0xa74b)
+#define HW_Q10_CH_SYNC_CTRL_0 (0xa74c)
+#define HW_Q10_CH_SYNC_CTRL_1 (0xa74d)
+#define HW_Q11_CH_SYNC_CTRL_0 (0xa74e)
+#define HW_Q11_CH_SYNC_CTRL_1 (0xa74f)
+
+#define SYNC_SOURCE_DPLL0_TOD_PPS 0x14
+#define SYNC_SOURCE_DPLL1_TOD_PPS 0x15
+#define SYNC_SOURCE_DPLL2_TOD_PPS 0x16
+#define SYNC_SOURCE_DPLL3_TOD_PPS 0x17
+
+#define SYNCTRL1_MASTER_SYNC_RST BIT(7)
+#define SYNCTRL1_MASTER_SYNC_TRIG BIT(5)
+#define SYNCTRL1_TOD_SYNC_TRIG BIT(4)
+#define SYNCTRL1_FBDIV_FRAME_SYNC_TRIG BIT(3)
+#define SYNCTRL1_FBDIV_SYNC_TRIG BIT(2)
+#define SYNCTRL1_Q1_DIV_SYNC_TRIG BIT(1)
+#define SYNCTRL1_Q0_DIV_SYNC_TRIG BIT(0)
+
+#define HW_Q8_CTRL_SPARE (0xa7d4)
+#define HW_Q11_CTRL_SPARE (0xa7ec)
+
+/**
+ * Select FOD5 as sync_trigger for Q8 divider.
+ * Transition from logic zero to one
+ * sets trigger to sync Q8 divider.
+ *
+ * Unused when FOD4 is driving Q8 divider (normal operation).
+ */
+#define Q9_TO_Q8_SYNC_TRIG BIT(1)
+
+/**
+ * Enable FOD5 as driver for clock and sync for Q8 divider.
+ * Enable fanout buffer for FOD5.
+ *
+ * Unused when FOD4 is driving Q8 divider (normal operation).
+ */
+#define Q9_TO_Q8_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK (BIT(0) | BIT(2))
+
+/**
+ * Select FOD6 as sync_trigger for Q11 divider.
+ * Transition from logic zero to one
+ * sets trigger to sync Q11 divider.
+ *
+ * Unused when FOD7 is driving Q11 divider (normal operation).
+ */
+#define Q10_TO_Q11_SYNC_TRIG BIT(1)
+
+/**
+ * Enable FOD6 as driver for clock and sync for Q11 divider.
+ * Enable fanout buffer for FOD6.
+ *
+ * Unused when FOD7 is driving Q11 divider (normal operation).
+ */
+#define Q10_TO_Q11_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK (BIT(0) | BIT(2))
+
+#define RESET_CTRL 0xc000
+#define SM_RESET 0x0012
+#define SM_RESET_CMD 0x5A
+
+#define GENERAL_STATUS 0xc014
+#define BOOT_STATUS 0x0000
+#define HW_REV_ID 0x000A
+#define BOND_ID 0x000B
+#define HW_CSR_ID 0x000C
+#define HW_IRQ_ID 0x000E
+
+#define MAJ_REL 0x0010
+#define MIN_REL 0x0011
+#define HOTFIX_REL 0x0012
+
+#define PIPELINE_ID 0x0014
+#define BUILD_ID 0x0018
+
+#define JTAG_DEVICE_ID 0x001c
+#define PRODUCT_ID 0x001e
+
+#define OTP_SCSR_CONFIG_SELECT 0x0022
+
+#define STATUS 0xc03c
+#define DPLL0_STATUS 0x0018
+#define DPLL1_STATUS 0x0019
+#define DPLL2_STATUS 0x001a
+#define DPLL3_STATUS 0x001b
+#define DPLL4_STATUS 0x001c
+#define DPLL5_STATUS 0x001d
+#define DPLL6_STATUS 0x001e
+#define DPLL7_STATUS 0x001f
+#define DPLL_SYS_STATUS 0x0020
+#define DPLL_SYS_APLL_STATUS 0x0021
+#define DPLL0_FILTER_STATUS 0x0044
+#define DPLL1_FILTER_STATUS 0x004c
+#define DPLL2_FILTER_STATUS 0x0054
+#define DPLL3_FILTER_STATUS 0x005c
+#define DPLL4_FILTER_STATUS 0x0064
+#define DPLL5_FILTER_STATUS 0x006c
+#define DPLL6_FILTER_STATUS 0x0074
+#define DPLL7_FILTER_STATUS 0x007c
+#define DPLLSYS_FILTER_STATUS 0x0084
+#define USER_GPIO0_TO_7_STATUS 0x008a
+#define USER_GPIO8_TO_15_STATUS 0x008b
+
+#define GPIO_USER_CONTROL 0xc160
+#define GPIO0_TO_7_OUT 0x0000
+#define GPIO8_TO_15_OUT 0x0001
+
+#define STICKY_STATUS_CLEAR 0xc164
+
+#define GPIO_TOD_NOTIFICATION_CLEAR 0xc16c
+
+#define ALERT_CFG 0xc188
+
+#define SYS_DPLL_XO 0xc194
+
+#define SYS_APLL 0xc19c
+
+#define INPUT_0 0xc1b0
+
+#define INPUT_1 0xc1c0
+
+#define INPUT_2 0xc1d0
+
+#define INPUT_3 0xc200
+
+#define INPUT_4 0xc210
+
+#define INPUT_5 0xc220
+
+#define INPUT_6 0xc230
+
+#define INPUT_7 0xc240
+
+#define INPUT_8 0xc250
+
+#define INPUT_9 0xc260
+
+#define INPUT_10 0xc280
+
+#define INPUT_11 0xc290
+
+#define INPUT_12 0xc2a0
+
+#define INPUT_13 0xc2b0
+
+#define INPUT_14 0xc2c0
+
+#define INPUT_15 0xc2d0
+
+#define REF_MON_0 0xc2e0
+
+#define REF_MON_1 0xc2ec
+
+#define REF_MON_2 0xc300
+
+#define REF_MON_3 0xc30c
+
+#define REF_MON_4 0xc318
+
+#define REF_MON_5 0xc324
+
+#define REF_MON_6 0xc330
+
+#define REF_MON_7 0xc33c
+
+#define REF_MON_8 0xc348
+
+#define REF_MON_9 0xc354
+
+#define REF_MON_10 0xc360
+
+#define REF_MON_11 0xc36c
+
+#define REF_MON_12 0xc380
+
+#define REF_MON_13 0xc38c
+
+#define REF_MON_14 0xc398
+
+#define REF_MON_15 0xc3a4
+
+#define DPLL_0 0xc3b0
+#define DPLL_CTRL_REG_0 0x0002
+#define DPLL_CTRL_REG_1 0x0003
+#define DPLL_CTRL_REG_2 0x0004
+#define DPLL_TOD_SYNC_CFG 0x0031
+#define DPLL_COMBO_SLAVE_CFG_0 0x0032
+#define DPLL_COMBO_SLAVE_CFG_1 0x0033
+#define DPLL_SLAVE_REF_CFG 0x0034
+#define DPLL_REF_MODE 0x0035
+#define DPLL_PHASE_MEASUREMENT_CFG 0x0036
+#define DPLL_MODE 0x0037
+
+#define DPLL_1 0xc400
+
+#define DPLL_2 0xc438
+
+#define DPLL_3 0xc480
+
+#define DPLL_4 0xc4b8
+
+#define DPLL_5 0xc500
+
+#define DPLL_6 0xc538
+
+#define DPLL_7 0xc580
+
+#define SYS_DPLL 0xc5b8
+
+#define DPLL_CTRL_0 0xc600
+#define DPLL_CTRL_DPLL_MANU_REF_CFG 0x0001
+#define DPLL_CTRL_DPLL_FOD_FREQ 0x001c
+#define DPLL_CTRL_COMBO_MASTER_CFG 0x003a
+
+#define DPLL_CTRL_1 0xc63c
+
+#define DPLL_CTRL_2 0xc680
+
+#define DPLL_CTRL_3 0xc6bc
+
+#define DPLL_CTRL_4 0xc700
+
+#define DPLL_CTRL_5 0xc73c
+
+#define DPLL_CTRL_6 0xc780
+
+#define DPLL_CTRL_7 0xc7bc
+
+#define SYS_DPLL_CTRL 0xc800
+
+#define DPLL_PHASE_0 0xc818
+
+/* Signed 42-bit FFO in units of 2^(-53) */
+#define DPLL_WR_PHASE 0x0000
+
+#define DPLL_PHASE_1 0xc81c
+
+#define DPLL_PHASE_2 0xc820
+
+#define DPLL_PHASE_3 0xc824
+
+#define DPLL_PHASE_4 0xc828
+
+#define DPLL_PHASE_5 0xc82c
+
+#define DPLL_PHASE_6 0xc830
+
+#define DPLL_PHASE_7 0xc834
+
+#define DPLL_FREQ_0 0xc838
+
+/* Signed 42-bit FFO in units of 2^(-53) */
+#define DPLL_WR_FREQ 0x0000
+
+#define DPLL_FREQ_1 0xc840
+
+#define DPLL_FREQ_2 0xc848
+
+#define DPLL_FREQ_3 0xc850
+
+#define DPLL_FREQ_4 0xc858
+
+#define DPLL_FREQ_5 0xc860
+
+#define DPLL_FREQ_6 0xc868
+
+#define DPLL_FREQ_7 0xc870
+
+#define DPLL_PHASE_PULL_IN_0 0xc880
+#define PULL_IN_OFFSET 0x0000 /* Signed 32 bit */
+#define PULL_IN_SLOPE_LIMIT 0x0004 /* Unsigned 24 bit */
+#define PULL_IN_CTRL 0x0007
+
+#define DPLL_PHASE_PULL_IN_1 0xc888
+
+#define DPLL_PHASE_PULL_IN_2 0xc890
+
+#define DPLL_PHASE_PULL_IN_3 0xc898
+
+#define DPLL_PHASE_PULL_IN_4 0xc8a0
+
+#define DPLL_PHASE_PULL_IN_5 0xc8a8
+
+#define DPLL_PHASE_PULL_IN_6 0xc8b0
+
+#define DPLL_PHASE_PULL_IN_7 0xc8b8
+
+#define GPIO_CFG 0xc8c0
+#define GPIO_CFG_GBL 0x0000
+
+#define GPIO_0 0xc8c2
+#define GPIO_DCO_INC_DEC 0x0000
+#define GPIO_OUT_CTRL_0 0x0001
+#define GPIO_OUT_CTRL_1 0x0002
+#define GPIO_TOD_TRIG 0x0003
+#define GPIO_DPLL_INDICATOR 0x0004
+#define GPIO_LOS_INDICATOR 0x0005
+#define GPIO_REF_INPUT_DSQ_0 0x0006
+#define GPIO_REF_INPUT_DSQ_1 0x0007
+#define GPIO_REF_INPUT_DSQ_2 0x0008
+#define GPIO_REF_INPUT_DSQ_3 0x0009
+#define GPIO_MAN_CLK_SEL_0 0x000a
+#define GPIO_MAN_CLK_SEL_1 0x000b
+#define GPIO_MAN_CLK_SEL_2 0x000c
+#define GPIO_SLAVE 0x000d
+#define GPIO_ALERT_OUT_CFG 0x000e
+#define GPIO_TOD_NOTIFICATION_CFG 0x000f
+#define GPIO_CTRL 0x0010
+
+#define GPIO_1 0xc8d4
+
+#define GPIO_2 0xc8e6
+
+#define GPIO_3 0xc900
+
+#define GPIO_4 0xc912
+
+#define GPIO_5 0xc924
+
+#define GPIO_6 0xc936
+
+#define GPIO_7 0xc948
+
+#define GPIO_8 0xc95a
+
+#define GPIO_9 0xc980
+
+#define GPIO_10 0xc992
+
+#define GPIO_11 0xc9a4
+
+#define GPIO_12 0xc9b6
+
+#define GPIO_13 0xc9c8
+
+#define GPIO_14 0xc9da
+
+#define GPIO_15 0xca00
+
+#define OUT_DIV_MUX 0xca12
+
+#define OUTPUT_0 0xca14
+/* FOD frequency output divider value */
+#define OUT_DIV 0x0000
+#define OUT_DUTY_CYCLE_HIGH 0x0004
+#define OUT_CTRL_0 0x0008
+#define OUT_CTRL_1 0x0009
+/* Phase adjustment in FOD cycles */
+#define OUT_PHASE_ADJ 0x000c
+
+#define OUTPUT_1 0xca24
+
+#define OUTPUT_2 0xca34
+
+#define OUTPUT_3 0xca44
+
+#define OUTPUT_4 0xca54
+
+#define OUTPUT_5 0xca64
+
+#define OUTPUT_6 0xca80
+
+#define OUTPUT_7 0xca90
+
+#define OUTPUT_8 0xcaa0
+
+#define OUTPUT_9 0xcab0
+
+#define OUTPUT_10 0xcac0
+
+#define OUTPUT_11 0xcad0
+
+#define SERIAL 0xcae0
+
+#define PWM_ENCODER_0 0xcb00
+
+#define PWM_ENCODER_1 0xcb08
+
+#define PWM_ENCODER_2 0xcb10
+
+#define PWM_ENCODER_3 0xcb18
+
+#define PWM_ENCODER_4 0xcb20
+
+#define PWM_ENCODER_5 0xcb28
+
+#define PWM_ENCODER_6 0xcb30
+
+#define PWM_ENCODER_7 0xcb38
+
+#define PWM_DECODER_0 0xcb40
+
+#define PWM_DECODER_1 0xcb48
+
+#define PWM_DECODER_2 0xcb50
+
+#define PWM_DECODER_3 0xcb58
+
+#define PWM_DECODER_4 0xcb60
+
+#define PWM_DECODER_5 0xcb68
+
+#define PWM_DECODER_6 0xcb70
+
+#define PWM_DECODER_7 0xcb80
+
+#define PWM_DECODER_8 0xcb88
+
+#define PWM_DECODER_9 0xcb90
+
+#define PWM_DECODER_10 0xcb98
+
+#define PWM_DECODER_11 0xcba0
+
+#define PWM_DECODER_12 0xcba8
+
+#define PWM_DECODER_13 0xcbb0
+
+#define PWM_DECODER_14 0xcbb8
+
+#define PWM_DECODER_15 0xcbc0
+
+#define PWM_USER_DATA 0xcbc8
+
+#define TOD_0 0xcbcc
+
+/* Enable TOD counter, output channel sync and even-PPS mode */
+#define TOD_CFG 0x0000
+
+#define TOD_1 0xcbce
+
+#define TOD_2 0xcbd0
+
+#define TOD_3 0xcbd2
+
+
+#define TOD_WRITE_0 0xcc00
+/* 8-bit subns, 32-bit ns, 48-bit seconds */
+#define TOD_WRITE 0x0000
+/* Counter increments after TOD write is completed */
+#define TOD_WRITE_COUNTER 0x000c
+/* TOD write trigger configuration */
+#define TOD_WRITE_SELECT_CFG_0 0x000d
+/* TOD write trigger selection */
+#define TOD_WRITE_CMD 0x000f
+
+#define TOD_WRITE_1 0xcc10
+
+#define TOD_WRITE_2 0xcc20
+
+#define TOD_WRITE_3 0xcc30
+
+#define TOD_READ_PRIMARY_0 0xcc40
+/* 8-bit subns, 32-bit ns, 48-bit seconds */
+#define TOD_READ_PRIMARY 0x0000
+/* Counter increments after TOD write is completed */
+#define TOD_READ_PRIMARY_COUNTER 0x000b
+/* Read trigger configuration */
+#define TOD_READ_PRIMARY_SEL_CFG_0 0x000c
+/* Read trigger selection */
+#define TOD_READ_PRIMARY_CMD 0x000e
+
+#define TOD_READ_PRIMARY_1 0xcc50
+
+#define TOD_READ_PRIMARY_2 0xcc60
+
+#define TOD_READ_PRIMARY_3 0xcc80
+
+#define TOD_READ_SECONDARY_0 0xcc90
+
+#define TOD_READ_SECONDARY_1 0xcca0
+
+#define TOD_READ_SECONDARY_2 0xccb0
+
+#define TOD_READ_SECONDARY_3 0xccc0
+
+#define OUTPUT_TDC_CFG 0xccd0
+
+#define OUTPUT_TDC_0 0xcd00
+
+#define OUTPUT_TDC_1 0xcd08
+
+#define OUTPUT_TDC_2 0xcd10
+
+#define OUTPUT_TDC_3 0xcd18
+
+#define INPUT_TDC 0xcd20
+
+#define SCRATCH 0xcf50
+
+#define EEPROM 0xcf68
+
+#define OTP 0xcf70
+
+#define BYTE 0xcf80
+
+/* Bit definitions for the MAJ_REL register */
+#define MAJOR_SHIFT (1)
+#define MAJOR_MASK (0x7f)
+#define PR_BUILD BIT(0)
+
+/* Bit definitions for the USER_GPIO0_TO_7_STATUS register */
+#define GPIO0_LEVEL BIT(0)
+#define GPIO1_LEVEL BIT(1)
+#define GPIO2_LEVEL BIT(2)
+#define GPIO3_LEVEL BIT(3)
+#define GPIO4_LEVEL BIT(4)
+#define GPIO5_LEVEL BIT(5)
+#define GPIO6_LEVEL BIT(6)
+#define GPIO7_LEVEL BIT(7)
+
+/* Bit definitions for the USER_GPIO8_TO_15_STATUS register */
+#define GPIO8_LEVEL BIT(0)
+#define GPIO9_LEVEL BIT(1)
+#define GPIO10_LEVEL BIT(2)
+#define GPIO11_LEVEL BIT(3)
+#define GPIO12_LEVEL BIT(4)
+#define GPIO13_LEVEL BIT(5)
+#define GPIO14_LEVEL BIT(6)
+#define GPIO15_LEVEL BIT(7)
+
+/* Bit definitions for the GPIO0_TO_7_OUT register */
+#define GPIO0_DRIVE_LEVEL BIT(0)
+#define GPIO1_DRIVE_LEVEL BIT(1)
+#define GPIO2_DRIVE_LEVEL BIT(2)
+#define GPIO3_DRIVE_LEVEL BIT(3)
+#define GPIO4_DRIVE_LEVEL BIT(4)
+#define GPIO5_DRIVE_LEVEL BIT(5)
+#define GPIO6_DRIVE_LEVEL BIT(6)
+#define GPIO7_DRIVE_LEVEL BIT(7)
+
+/* Bit definitions for the GPIO8_TO_15_OUT register */
+#define GPIO8_DRIVE_LEVEL BIT(0)
+#define GPIO9_DRIVE_LEVEL BIT(1)
+#define GPIO10_DRIVE_LEVEL BIT(2)
+#define GPIO11_DRIVE_LEVEL BIT(3)
+#define GPIO12_DRIVE_LEVEL BIT(4)
+#define GPIO13_DRIVE_LEVEL BIT(5)
+#define GPIO14_DRIVE_LEVEL BIT(6)
+#define GPIO15_DRIVE_LEVEL BIT(7)
+
+/* Bit definitions for the DPLL_TOD_SYNC_CFG register */
+#define TOD_SYNC_SOURCE_SHIFT (1)
+#define TOD_SYNC_SOURCE_MASK (0x3)
+#define TOD_SYNC_EN BIT(0)
+
+/* Bit definitions for the DPLL_MODE register */
+#define WRITE_TIMER_MODE BIT(6)
+#define PLL_MODE_SHIFT (3)
+#define PLL_MODE_MASK (0x7)
+#define STATE_MODE_SHIFT (0)
+#define STATE_MODE_MASK (0x7)
+
+/* Bit definitions for the GPIO_CFG_GBL register */
+#define SUPPLY_MODE_SHIFT (0)
+#define SUPPLY_MODE_MASK (0x3)
+
+/* Bit definitions for the GPIO_DCO_INC_DEC register */
+#define INCDEC_DPLL_INDEX_SHIFT (0)
+#define INCDEC_DPLL_INDEX_MASK (0x7)
+
+/* Bit definitions for the GPIO_OUT_CTRL_0 register */
+#define CTRL_OUT_0 BIT(0)
+#define CTRL_OUT_1 BIT(1)
+#define CTRL_OUT_2 BIT(2)
+#define CTRL_OUT_3 BIT(3)
+#define CTRL_OUT_4 BIT(4)
+#define CTRL_OUT_5 BIT(5)
+#define CTRL_OUT_6 BIT(6)
+#define CTRL_OUT_7 BIT(7)
+
+/* Bit definitions for the GPIO_OUT_CTRL_1 register */
+#define CTRL_OUT_8 BIT(0)
+#define CTRL_OUT_9 BIT(1)
+#define CTRL_OUT_10 BIT(2)
+#define CTRL_OUT_11 BIT(3)
+#define CTRL_OUT_12 BIT(4)
+#define CTRL_OUT_13 BIT(5)
+#define CTRL_OUT_14 BIT(6)
+#define CTRL_OUT_15 BIT(7)
+
+/* Bit definitions for the GPIO_TOD_TRIG register */
+#define TOD_TRIG_0 BIT(0)
+#define TOD_TRIG_1 BIT(1)
+#define TOD_TRIG_2 BIT(2)
+#define TOD_TRIG_3 BIT(3)
+
+/* Bit definitions for the GPIO_DPLL_INDICATOR register */
+#define IND_DPLL_INDEX_SHIFT (0)
+#define IND_DPLL_INDEX_MASK (0x7)
+
+/* Bit definitions for the GPIO_LOS_INDICATOR register */
+#define REFMON_INDEX_SHIFT (0)
+#define REFMON_INDEX_MASK (0xf)
+/* Active level of LOS indicator, 0=low 1=high */
+#define ACTIVE_LEVEL BIT(4)
+
+/* Bit definitions for the GPIO_REF_INPUT_DSQ_0 register */
+#define DSQ_INP_0 BIT(0)
+#define DSQ_INP_1 BIT(1)
+#define DSQ_INP_2 BIT(2)
+#define DSQ_INP_3 BIT(3)
+#define DSQ_INP_4 BIT(4)
+#define DSQ_INP_5 BIT(5)
+#define DSQ_INP_6 BIT(6)
+#define DSQ_INP_7 BIT(7)
+
+/* Bit definitions for the GPIO_REF_INPUT_DSQ_1 register */
+#define DSQ_INP_8 BIT(0)
+#define DSQ_INP_9 BIT(1)
+#define DSQ_INP_10 BIT(2)
+#define DSQ_INP_11 BIT(3)
+#define DSQ_INP_12 BIT(4)
+#define DSQ_INP_13 BIT(5)
+#define DSQ_INP_14 BIT(6)
+#define DSQ_INP_15 BIT(7)
+
+/* Bit definitions for the GPIO_REF_INPUT_DSQ_2 register */
+#define DSQ_DPLL_0 BIT(0)
+#define DSQ_DPLL_1 BIT(1)
+#define DSQ_DPLL_2 BIT(2)
+#define DSQ_DPLL_3 BIT(3)
+#define DSQ_DPLL_4 BIT(4)
+#define DSQ_DPLL_5 BIT(5)
+#define DSQ_DPLL_6 BIT(6)
+#define DSQ_DPLL_7 BIT(7)
+
+/* Bit definitions for the GPIO_REF_INPUT_DSQ_3 register */
+#define DSQ_DPLL_SYS BIT(0)
+#define GPIO_DSQ_LEVEL BIT(1)
+
+/* Bit definitions for the GPIO_TOD_NOTIFICATION_CFG register */
+#define DPLL_TOD_SHIFT (0)
+#define DPLL_TOD_MASK (0x3)
+#define TOD_READ_SECONDARY BIT(2)
+#define GPIO_ASSERT_LEVEL BIT(3)
+
+/* Bit definitions for the GPIO_CTRL register */
+#define GPIO_FUNCTION_EN BIT(0)
+#define GPIO_CMOS_OD_MODE BIT(1)
+#define GPIO_CONTROL_DIR BIT(2)
+#define GPIO_PU_PD_MODE BIT(3)
+#define GPIO_FUNCTION_SHIFT (4)
+#define GPIO_FUNCTION_MASK (0xf)
+
+/* Bit definitions for the OUT_CTRL_1 register */
+#define OUT_SYNC_DISABLE BIT(7)
+#define SQUELCH_VALUE BIT(6)
+#define SQUELCH_DISABLE BIT(5)
+#define PAD_VDDO_SHIFT (2)
+#define PAD_VDDO_MASK (0x7)
+#define PAD_CMOSDRV_SHIFT (0)
+#define PAD_CMOSDRV_MASK (0x3)
+
+/* Bit definitions for the TOD_CFG register */
+#define TOD_EVEN_PPS_MODE BIT(2)
+#define TOD_OUT_SYNC_ENABLE BIT(1)
+#define TOD_ENABLE BIT(0)
+
+/* Bit definitions for the TOD_WRITE_SELECT_CFG_0 register */
+#define WR_PWM_DECODER_INDEX_SHIFT (4)
+#define WR_PWM_DECODER_INDEX_MASK (0xf)
+#define WR_REF_INDEX_SHIFT (0)
+#define WR_REF_INDEX_MASK (0xf)
+
+/* Bit definitions for the TOD_WRITE_CMD register */
+#define TOD_WRITE_SELECTION_SHIFT (0)
+#define TOD_WRITE_SELECTION_MASK (0xf)
+/* 4.8.7 */
+#define TOD_WRITE_TYPE_SHIFT (4)
+#define TOD_WRITE_TYPE_MASK (0x3)
+
+/* Bit definitions for the TOD_READ_PRIMARY_SEL_CFG_0 register */
+#define RD_PWM_DECODER_INDEX_SHIFT (4)
+#define RD_PWM_DECODER_INDEX_MASK (0xf)
+#define RD_REF_INDEX_SHIFT (0)
+#define RD_REF_INDEX_MASK (0xf)
+
+/* Bit definitions for the TOD_READ_PRIMARY_CMD register */
+#define TOD_READ_TRIGGER_MODE BIT(4)
+#define TOD_READ_TRIGGER_SHIFT (0)
+#define TOD_READ_TRIGGER_MASK (0xf)
+
+/* Bit definitions for the DPLL_CTRL_COMBO_MASTER_CFG register */
+#define COMBO_MASTER_HOLD BIT(0)
+
+/* Bit definitions for DPLL_SYS_STATUS register */
+#define DPLL_SYS_STATE_MASK (0xf)
+
+/* Bit definitions for SYS_APLL_STATUS register */
+#define SYS_APLL_LOSS_LOCK_LIVE_MASK BIT(0)
+#define SYS_APLL_LOSS_LOCK_LIVE_LOCKED 0
+#define SYS_APLL_LOSS_LOCK_LIVE_UNLOCKED 1
+
+/* Bit definitions for the DPLL0_STATUS register */
+#define DPLL_STATE_MASK (0xf)
+#define DPLL_STATE_SHIFT (0x0)
+
+/* Values of DPLL_N.DPLL_MODE.PLL_MODE */
+enum pll_mode {
+ PLL_MODE_MIN = 0,
+ PLL_MODE_NORMAL = PLL_MODE_MIN,
+ PLL_MODE_WRITE_PHASE = 1,
+ PLL_MODE_WRITE_FREQUENCY = 2,
+ PLL_MODE_GPIO_INC_DEC = 3,
+ PLL_MODE_SYNTHESIS = 4,
+ PLL_MODE_PHASE_MEASUREMENT = 5,
+ PLL_MODE_DISABLED = 6,
+ PLL_MODE_MAX = PLL_MODE_DISABLED,
+};
+
+enum hw_tod_write_trig_sel {
+ HW_TOD_WR_TRIG_SEL_MIN = 0,
+ HW_TOD_WR_TRIG_SEL_MSB = HW_TOD_WR_TRIG_SEL_MIN,
+ HW_TOD_WR_TRIG_SEL_RESERVED = 1,
+ HW_TOD_WR_TRIG_SEL_TOD_PPS = 2,
+ HW_TOD_WR_TRIG_SEL_IRIGB_PPS = 3,
+ HW_TOD_WR_TRIG_SEL_PWM_PPS = 4,
+ HW_TOD_WR_TRIG_SEL_GPIO = 5,
+ HW_TOD_WR_TRIG_SEL_FOD_SYNC = 6,
+ WR_TRIG_SEL_MAX = HW_TOD_WR_TRIG_SEL_FOD_SYNC,
+};
+
+enum scsr_read_trig_sel {
+ /* CANCEL CURRENT TOD READ; MODULE BECOMES IDLE - NO TRIGGER OCCURS */
+ SCSR_TOD_READ_TRIG_SEL_DISABLE = 0,
+ /* TRIGGER IMMEDIATELY */
+ SCSR_TOD_READ_TRIG_SEL_IMMEDIATE = 1,
+ /* TRIGGER ON RISING EDGE OF INTERNAL TOD PPS SIGNAL */
+ SCSR_TOD_READ_TRIG_SEL_TODPPS = 2,
+ /* TRGGER ON RISING EDGE OF SELECTED REFERENCE INPUT */
+ SCSR_TOD_READ_TRIG_SEL_REFCLK = 3,
+ /* TRIGGER ON RISING EDGE OF SELECTED PWM DECODER 1PPS OUTPUT */
+ SCSR_TOD_READ_TRIG_SEL_PWMPPS = 4,
+ SCSR_TOD_READ_TRIG_SEL_RESERVED = 5,
+ /* TRIGGER WHEN WRITE FREQUENCY EVENT OCCURS */
+ SCSR_TOD_READ_TRIG_SEL_WRITEFREQUENCYEVENT = 6,
+ /* TRIGGER ON SELECTED GPIO */
+ SCSR_TOD_READ_TRIG_SEL_GPIO = 7,
+ SCSR_TOD_READ_TRIG_SEL_MAX = SCSR_TOD_READ_TRIG_SEL_GPIO,
+};
+
+/* Values STATUS.DPLL_SYS_STATUS.DPLL_SYS_STATE */
+enum dpll_state {
+ DPLL_STATE_MIN = 0,
+ DPLL_STATE_FREERUN = DPLL_STATE_MIN,
+ DPLL_STATE_LOCKACQ = 1,
+ DPLL_STATE_LOCKREC = 2,
+ DPLL_STATE_LOCKED = 3,
+ DPLL_STATE_HOLDOVER = 4,
+ DPLL_STATE_OPEN_LOOP = 5,
+ DPLL_STATE_MAX = DPLL_STATE_OPEN_LOOP,
+};
+
+/* 4.8.7 only */
+enum scsr_tod_write_trig_sel {
+ SCSR_TOD_WR_TRIG_SEL_DISABLE = 0,
+ SCSR_TOD_WR_TRIG_SEL_IMMEDIATE = 1,
+ SCSR_TOD_WR_TRIG_SEL_REFCLK = 2,
+ SCSR_TOD_WR_TRIG_SEL_PWMPPS = 3,
+ SCSR_TOD_WR_TRIG_SEL_TODPPS = 4,
+ SCSR_TOD_WR_TRIG_SEL_SYNCFOD = 5,
+ SCSR_TOD_WR_TRIG_SEL_GPIO = 6,
+ SCSR_TOD_WR_TRIG_SEL_MAX = SCSR_TOD_WR_TRIG_SEL_GPIO,
+};
+
+/* 4.8.7 only */
+enum scsr_tod_write_type_sel {
+ SCSR_TOD_WR_TYPE_SEL_ABSOLUTE = 0,
+ SCSR_TOD_WR_TYPE_SEL_DELTA_PLUS = 1,
+ SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS = 2,
+ SCSR_TOD_WR_TYPE_SEL_MAX = SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS,
+};
+#endif
diff --git a/include/linux/mfd/rsmu.h b/include/linux/mfd/rsmu.h
new file mode 100644
index 0000000..843dd6c
--- /dev/null
+++ b/include/linux/mfd/rsmu.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Multi-function driver for the IDT ClockMatrix(TM) and 82p33xxx families of
+ * timing and synchronization devices.
+ *
+ * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company.
+ */
+
+#ifndef __LINUX_MFD_RSMU_H
+#define __LINUX_MFD_RSMU_H
+
+/* We only support Clockmatrix and Sabre now */
+enum rsmu_type {
+ RSMU_CM = 0,
+ RSMU_SABRE = 1,
+ RSMU_NONE = 2,
+};
+
+/**
+ *
+ * struct rsmu_pdata - platform data structure for MFD cell devices.
+ *
+ * @lock: Mutex used by cell devices to make sure a series of requests
+ * are not interrupted.
+ *
+ * @type: RSMU device type.
+ *
+ * @index: Device index.
+ */
+struct rsmu_pdata {
+ enum rsmu_type type;
+ struct mutex *lock;
+ u8 index;
+};
+
+static inline char *rsmu_name(enum rsmu_type type)
+{
+ switch (type) {
+ case RSMU_CM:
+ return "ClockMatrix";
+ case RSMU_SABRE:
+ return "Sabre";
+ default:
+ return "Unknown SMU";
+ }
+}
+
+/**
+ * NOTE: the functions below are not intended for use outside
+ * of the IDT synchronization management unit drivers
+ */
+extern int rsmu_write(struct device *dev, u16 reg, u8 *buf, u16 size);
+extern int rsmu_read(struct device *dev, u16 reg, u8 *buf, u16 size);
+#endif /* __LINUX_MFD_RSMU_H */
--
2.7.4
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