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path: root/drivers/mfd/pcf50633-core.c
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Diffstat (limited to 'drivers/mfd/pcf50633-core.c')
-rw-r--r--drivers/mfd/pcf50633-core.c304
1 files changed, 0 insertions, 304 deletions
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
deleted file mode 100644
index 014a68711b18..000000000000
--- a/drivers/mfd/pcf50633-core.c
+++ /dev/null
@@ -1,304 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* NXP PCF50633 Power Management Unit (PMU) driver
- *
- * (C) 2006-2008 by Openmoko, Inc.
- * Author: Harald Welte <laforge@openmoko.org>
- * Balaji Rao <balajirrao@openmoko.org>
- * All rights reserved.
- */
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-#include <linux/pm.h>
-#include <linux/slab.h>
-#include <linux/regmap.h>
-#include <linux/err.h>
-
-#include <linux/mfd/pcf50633/core.h>
-
-/* Read a block of up to 32 regs */
-int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
- int nr_regs, u8 *data)
-{
- int ret;
-
- ret = regmap_raw_read(pcf->regmap, reg, data, nr_regs);
- if (ret != 0)
- return ret;
-
- return nr_regs;
-}
-EXPORT_SYMBOL_GPL(pcf50633_read_block);
-
-/* Write a block of up to 32 regs */
-int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
- int nr_regs, u8 *data)
-{
- return regmap_raw_write(pcf->regmap, reg, data, nr_regs);
-}
-EXPORT_SYMBOL_GPL(pcf50633_write_block);
-
-u8 pcf50633_reg_read(struct pcf50633 *pcf, u8 reg)
-{
- unsigned int val;
- int ret;
-
- ret = regmap_read(pcf->regmap, reg, &val);
- if (ret < 0)
- return -1;
-
- return val;
-}
-EXPORT_SYMBOL_GPL(pcf50633_reg_read);
-
-int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val)
-{
- return regmap_write(pcf->regmap, reg, val);
-}
-EXPORT_SYMBOL_GPL(pcf50633_reg_write);
-
-int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val)
-{
- return regmap_update_bits(pcf->regmap, reg, mask, val);
-}
-EXPORT_SYMBOL_GPL(pcf50633_reg_set_bit_mask);
-
-int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 val)
-{
- return regmap_update_bits(pcf->regmap, reg, val, 0);
-}
-EXPORT_SYMBOL_GPL(pcf50633_reg_clear_bits);
-
-/* sysfs attributes */
-static ssize_t dump_regs_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct pcf50633 *pcf = dev_get_drvdata(dev);
- u8 dump[16];
- int n, n1, idx = 0;
- char *buf1 = buf;
- static u8 address_no_read[] = { /* must be ascending */
- PCF50633_REG_INT1,
- PCF50633_REG_INT2,
- PCF50633_REG_INT3,
- PCF50633_REG_INT4,
- PCF50633_REG_INT5,
- 0 /* terminator */
- };
-
- for (n = 0; n < 256; n += sizeof(dump)) {
- for (n1 = 0; n1 < sizeof(dump); n1++)
- if (n == address_no_read[idx]) {
- idx++;
- dump[n1] = 0x00;
- } else
- dump[n1] = pcf50633_reg_read(pcf, n + n1);
-
- buf1 += sprintf(buf1, "%*ph\n", (int)sizeof(dump), dump);
- }
-
- return buf1 - buf;
-}
-static DEVICE_ATTR_ADMIN_RO(dump_regs);
-
-static ssize_t resume_reason_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct pcf50633 *pcf = dev_get_drvdata(dev);
- int n;
-
- n = sprintf(buf, "%02x%02x%02x%02x%02x\n",
- pcf->resume_reason[0],
- pcf->resume_reason[1],
- pcf->resume_reason[2],
- pcf->resume_reason[3],
- pcf->resume_reason[4]);
-
- return n;
-}
-static DEVICE_ATTR_ADMIN_RO(resume_reason);
-
-static struct attribute *pcf_sysfs_entries[] = {
- &dev_attr_dump_regs.attr,
- &dev_attr_resume_reason.attr,
- NULL,
-};
-
-static struct attribute_group pcf_attr_group = {
- .name = NULL, /* put in device directory */
- .attrs = pcf_sysfs_entries,
-};
-
-static void
-pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
- struct platform_device **pdev)
-{
- int ret;
-
- *pdev = platform_device_alloc(name, -1);
- if (!*pdev) {
- dev_err(pcf->dev, "Failed to allocate %s\n", name);
- return;
- }
-
- (*pdev)->dev.parent = pcf->dev;
-
- ret = platform_device_add(*pdev);
- if (ret) {
- dev_err(pcf->dev, "Failed to register %s: %d\n", name, ret);
- platform_device_put(*pdev);
- *pdev = NULL;
- }
-}
-
-static const struct regmap_config pcf50633_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
-};
-
-static int pcf50633_probe(struct i2c_client *client)
-{
- struct pcf50633 *pcf;
- struct platform_device *pdev;
- struct pcf50633_platform_data *pdata = dev_get_platdata(&client->dev);
- int i, j, ret;
- int version, variant;
-
- if (!client->irq) {
- dev_err(&client->dev, "Missing IRQ\n");
- return -ENOENT;
- }
-
- pcf = devm_kzalloc(&client->dev, sizeof(*pcf), GFP_KERNEL);
- if (!pcf)
- return -ENOMEM;
-
- i2c_set_clientdata(client, pcf);
- pcf->dev = &client->dev;
- pcf->pdata = pdata;
-
- mutex_init(&pcf->lock);
-
- pcf->regmap = devm_regmap_init_i2c(client, &pcf50633_regmap_config);
- if (IS_ERR(pcf->regmap)) {
- ret = PTR_ERR(pcf->regmap);
- dev_err(pcf->dev, "Failed to allocate register map: %d\n", ret);
- return ret;
- }
-
- version = pcf50633_reg_read(pcf, 0);
- variant = pcf50633_reg_read(pcf, 1);
- if (version < 0 || variant < 0) {
- dev_err(pcf->dev, "Unable to probe pcf50633\n");
- ret = -ENODEV;
- return ret;
- }
-
- dev_info(pcf->dev, "Probed device version %d variant %d\n",
- version, variant);
-
- pcf50633_irq_init(pcf, client->irq);
-
- /* Create sub devices */
- pcf50633_client_dev_register(pcf, "pcf50633-input", &pcf->input_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-rtc", &pcf->rtc_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-mbc", &pcf->mbc_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-adc", &pcf->adc_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-backlight", &pcf->bl_pdev);
-
-
- for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
- pdev = platform_device_alloc("pcf50633-regulator", i);
- if (!pdev) {
- ret = -ENOMEM;
- goto err2;
- }
-
- pdev->dev.parent = pcf->dev;
- ret = platform_device_add_data(pdev, &pdata->reg_init_data[i],
- sizeof(pdata->reg_init_data[i]));
- if (ret)
- goto err;
-
- ret = platform_device_add(pdev);
- if (ret)
- goto err;
-
- pcf->regulator_pdev[i] = pdev;
- }
-
- ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group);
- if (ret)
- dev_warn(pcf->dev, "error creating sysfs entries\n");
-
- if (pdata->probe_done)
- pdata->probe_done(pcf);
-
- return 0;
-
-err:
- platform_device_put(pdev);
-err2:
- for (j = 0; j < i; j++)
- platform_device_put(pcf->regulator_pdev[j]);
-
- return ret;
-}
-
-static void pcf50633_remove(struct i2c_client *client)
-{
- struct pcf50633 *pcf = i2c_get_clientdata(client);
- int i;
-
- sysfs_remove_group(&client->dev.kobj, &pcf_attr_group);
- pcf50633_irq_free(pcf);
-
- platform_device_unregister(pcf->input_pdev);
- platform_device_unregister(pcf->rtc_pdev);
- platform_device_unregister(pcf->mbc_pdev);
- platform_device_unregister(pcf->adc_pdev);
- platform_device_unregister(pcf->bl_pdev);
-
- for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
- platform_device_unregister(pcf->regulator_pdev[i]);
-}
-
-static const struct i2c_device_id pcf50633_id_table[] = {
- {"pcf50633", 0x73},
- {/* end of list */}
-};
-MODULE_DEVICE_TABLE(i2c, pcf50633_id_table);
-
-static struct i2c_driver pcf50633_driver = {
- .driver = {
- .name = "pcf50633",
- .pm = pm_sleep_ptr(&pcf50633_pm),
- },
- .id_table = pcf50633_id_table,
- .probe = pcf50633_probe,
- .remove = pcf50633_remove,
-};
-
-static int __init pcf50633_init(void)
-{
- return i2c_add_driver(&pcf50633_driver);
-}
-
-static void __exit pcf50633_exit(void)
-{
- i2c_del_driver(&pcf50633_driver);
-}
-
-MODULE_DESCRIPTION("I2C chip driver for NXP PCF50633 PMU");
-MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
-MODULE_LICENSE("GPL");
-
-subsys_initcall(pcf50633_init);
-module_exit(pcf50633_exit);
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-28 05:01:01 +0000