From 66bf0442f949f4da02d5b4cae584cc7148f7b63c Mon Sep 17 00:00:00 2001
From: Felipe Balbi <me@felipebalbi.com>
Date: Wed, 18 Feb 2009 01:17:28 +0200
Subject: [PATCH] i2c: chips: remove lp5521 driver
It's now coming via LED tree so it should be
safe to get rid of it here and wait till next
mainline merge.
Signed-off-by: Felipe Balbi <me@felipebalbi.com>
---
drivers/i2c/chips/Kconfig | 7 -
drivers/i2c/chips/Makefile | 1 -
drivers/i2c/chips/lp5521.c | 585 --------------------------------------------
3 files changed, 0 insertions(+), 593 deletions(-)
delete mode 100644 drivers/i2c/chips/lp5521.c
@@ -141,13 +141,6 @@ config SENSORS_TSL2563
This driver can also be built as a module. If so, the module
will be called tsl2563.
-config LP5521
- tristate "LP5521 LED driver chip"
- depends on I2C
- help
- If you say yes here you get support for the National Semiconductor
- LP5521 LED driver.
-
config MENELAUS
bool "TWL92330/Menelaus PM chip"
depends on I2C=y && ARCH_OMAP24XX
@@ -21,7 +21,6 @@ obj-$(CONFIG_TWL4030_POWEROFF) += twl4030-poweroff.o
obj-$(CONFIG_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o
obj-$(CONFIG_RTC_X1205_I2C) += x1205.o
-obj-$(CONFIG_LP5521) += lp5521.o
ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
EXTRA_CFLAGS += -DDEBUG
deleted file mode 100644
@@ -1,585 +0,0 @@
-/*
- * drivers/i2c/chips/lp5521.c
- *
- * Copyright (C) 2007 Nokia Corporation
- *
- * Written by Mathias Nyman <mathias.nyman@nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/i2c.h>
-#include <linux/mutex.h>
-#include <mach/gpio.h>
-
-#define LP5521_DRIVER_NAME "lp5521"
-
-#ifdef LED_CONNECTED_WRONG
-#define LP5521_REG_R_PWM 0x04
-#define LP5521_REG_B_PWM 0x02
-#else
-#define LP5521_REG_R_PWM 0x02
-#define LP5521_REG_B_PWM 0x04
-#endif
-#define LP5521_REG_ENABLE 0x00
-#define LP5521_REG_OP_MODE 0x01
-#define LP5521_REG_G_PWM 0x03
-#define LP5521_REG_R_CNTRL 0x05
-#define LP5521_REG_G_CNTRL 0x06
-#define LP5521_REG_B_CNTRL 0x07
-#define LP5521_REG_MISC 0x08
-#define LP5521_REG_R_CHANNEL_PC 0x09
-#define LP5521_REG_G_CHANNEL_PC 0x0a
-#define LP5521_REG_B_CHANNEL_PC 0x0b
-#define LP5521_REG_STATUS 0x0c
-#define LP5521_REG_RESET 0x0d
-#define LP5521_REG_GPO 0x0e
-#define LP5521_REG_R_PROG_MEM 0x10
-#define LP5521_REG_G_PROG_MEM 0x30
-#define LP5521_REG_B_PROG_MEM 0x50
-
-#define LP5521_MODE_LOAD "load"
-#define LP5521_MODE_RUN "run"
-#define LP5521_MODE_DIRECT_CONTROL "direct"
-
-#define LP5521_CURRENT_1m5 0x0f
-#define LP5521_CURRENT_3m1 0x1f
-#define LP5521_CURRENT_4m7 0x2f
-#define LP5521_CURRENT_6m3 0x3f
-#define LP5521_CURRENT_7m9 0x4f
-#define LP5521_CURRENT_9m5 0x5f
-#define LP5521_CURRENT_11m1 0x6f
-#define LP5521_CURRENT_12m7 0x7f
-#define LP5521_CURRENT_14m3 0x8f
-#define LP5521_CURRENT_15m9 0x9f
-#define LP5521_CURRENT_17m5 0xaf
-#define LP5521_CURRENT_19m1 0xbf
-#define LP5521_CURRENT_20m7 0xcf
-#define LP5521_CURRENT_22m3 0xdf
-#define LP5521_CURRENT_23m9 0xef
-#define LP5521_CURRENT_25m5 0xff
-
-#define LP5521_PROGRAM_LENGTH 32 /* in bytes */
-
-struct lp5521_chip {
- struct mutex lock;
- struct i2c_client *client;
- char *mode;
- int red;
- int green;
- int blue;
-};
-
-static int lp5521_set_mode(struct lp5521_chip *chip, char *mode);
-
-static int lp5521_write(struct i2c_client *client, u8 reg, u8 value)
-{
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-static int lp5521_read(struct i2c_client *client, u8 reg, u8 *buf)
-{
- s32 ret = i2c_smbus_read_byte_data(client, reg);
-
- if (ret < 0)
- return -EIO;
-
- *buf = ret;
- return 0;
-}
-
-static int lp5521_configure(struct i2c_client *client)
-{
- int ret = 0;
-
- /* Enable chip and set light to logarithmic mode*/
- ret |= lp5521_write(client, LP5521_REG_ENABLE, 0xc0);
-
- /* setting all color pwms to direct control mode */
- ret |= lp5521_write(client, LP5521_REG_OP_MODE, 0x3f);
-
- /* setting current to 4.7 mA for all channels */
- ret |= lp5521_write(client, LP5521_REG_R_CNTRL, LP5521_CURRENT_4m7);
- ret |= lp5521_write(client, LP5521_REG_G_CNTRL, LP5521_CURRENT_4m7);
- ret |= lp5521_write(client, LP5521_REG_B_CNTRL, LP5521_CURRENT_4m7);
-
- /* Enable auto-powersave, set charge pump to auto, red to battery */
- ret |= lp5521_write(client, LP5521_REG_MISC, 0x3c);
-
- /* initialize all channels pwm to zero */
- ret |= lp5521_write(client, LP5521_REG_R_PWM, 0);
- ret |= lp5521_write(client, LP5521_REG_G_PWM, 0);
- ret |= lp5521_write(client, LP5521_REG_B_PWM, 0);
-
- /* Not much can be done about errors at this point */
- return ret;
-}
-
-static int lp5521_load_program(struct lp5521_chip *chip, u8 *pattern)
-{
- struct i2c_client *client = chip->client;
- int ret = 0;
-
- /* Enter load program mode for all led channels */
- ret |= lp5521_write(client, LP5521_REG_OP_MODE, 0x15); /* 0001 0101 */
- if (ret)
- return ret;
-
- if (chip->red)
- ret |= i2c_smbus_write_i2c_block_data(client,
- LP5521_REG_R_PROG_MEM,
- LP5521_PROGRAM_LENGTH,
- pattern);
- if (chip->green)
- ret |= i2c_smbus_write_i2c_block_data(client,
- LP5521_REG_G_PROG_MEM,
- LP5521_PROGRAM_LENGTH,
- pattern);
- if (chip->blue)
- ret |= i2c_smbus_write_i2c_block_data(client,
- LP5521_REG_B_PROG_MEM,
- LP5521_PROGRAM_LENGTH,
- pattern);
-
- return ret;
-}
-
-static int lp5521_run_program(struct lp5521_chip *chip)
-{
- struct i2c_client *client = chip->client;
- int ret;
- u8 mask = 0xc0;
- u8 exec_state = 0;
- u8 enable_reg;
-
- ret = lp5521_read(client, LP5521_REG_ENABLE, &enable_reg);
- if (ret)
- goto fail;
-
- enable_reg &= mask;
-
- /* set all active channels exec state to countinous run*/
- exec_state |= (chip->red << 5);
- exec_state |= (chip->green << 3);
- exec_state |= (chip->blue << 1);
-
- enable_reg |= exec_state;
-
- ret |= lp5521_write(client, LP5521_REG_ENABLE, enable_reg);
-
- /* set op-mode to run for active channels, disabled for others */
- ret |= lp5521_write(client, LP5521_REG_OP_MODE, exec_state);
-
-fail:
- return ret;
-}
-
-/*--------------------------------------------------------------*/
-/* Sysfs interface */
-/*--------------------------------------------------------------*/
-
-static ssize_t show_active_channels(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct lp5521_chip *chip = dev_get_drvdata(dev);
- char channels[4];
- int pos = 0;
-
-#ifdef LED_CONNECTED_WRONG
- if (chip->blue)
- pos += sprintf(channels + pos, "r");
- if (chip->green)
- pos += sprintf(channels + pos, "g");
- if (chip->red)
- pos += sprintf(channels + pos, "b");
-
-#else
- if (chip->red)
- pos += sprintf(channels + pos, "r");
- if (chip->green)
- pos += sprintf(channels + pos, "g");
- if (chip->blue)
- pos += sprintf(channels + pos, "b");
-#endif
-
- channels[pos] = '\0';
-
- return sprintf(buf, "%s\n", channels);
-}
-
-static ssize_t store_active_channels(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct lp5521_chip *chip = dev_get_drvdata(dev);
-
- chip->red = 0;
- chip->green = 0;
- chip->blue = 0;
-
-#ifdef LED_CONNECTED_WRONG
- if (strchr(buf, 'r') != NULL)
- chip->blue = 1;
- if (strchr(buf, 'b') != NULL)
- chip->red = 1;
-#else
- if (strchr(buf, 'r') != NULL)
- chip->red = 1;
- if (strchr(buf, 'b') != NULL)
- chip->blue = 1;
-#endif
- if (strchr(buf, 'g') != NULL)
- chip->green = 1;
-
- return len;
-}
-
-static ssize_t show_color(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct i2c_client *client = to_i2c_client(dev);
- int ret = 0;
- u8 r, g, b;
-
- ret |= lp5521_read(client, LP5521_REG_R_PWM, &r);
- ret |= lp5521_read(client, LP5521_REG_G_PWM, &g);
- ret |= lp5521_read(client, LP5521_REG_B_PWM, &b);
-
- if (ret)
- return ret;
-
- return sprintf(buf, "%.2x:%.2x:%.2x\n", r, g, b);
-}
-
-static ssize_t store_color(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct lp5521_chip *chip = i2c_get_clientdata(client);
- int ret;
- unsigned r, g, b;
-
-
- ret = sscanf(buf, "%2x:%2x:%2x", &r, &g, &b);
- if (ret != 3)
- return -EINVAL;
-
- mutex_lock(&chip->lock);
-
- ret = lp5521_write(client, LP5521_REG_R_PWM, (u8)r);
- ret = lp5521_write(client, LP5521_REG_G_PWM, (u8)g);
- ret = lp5521_write(client, LP5521_REG_B_PWM, (u8)b);
-
- mutex_unlock(&chip->lock);
-
- return len;
-}
-
-static ssize_t store_load(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct lp5521_chip *chip = dev_get_drvdata(dev);
- int ret, nrchars, offset = 0, i = 0;
- char c[3];
- unsigned cmd;
- u8 pattern[LP5521_PROGRAM_LENGTH] = {0};
-
- while ((offset < len - 1) && (i < LP5521_PROGRAM_LENGTH)) {
-
- /* separate sscanfs because length is working only for %s */
- ret = sscanf(buf + offset, "%2s%n ", c, &nrchars);
- ret = sscanf(c, "%2x", &cmd);
- if (ret != 1)
- goto fail;
- pattern[i] = (u8)cmd;
-
- offset += nrchars;
- i++;
- }
-
- /* pattern commands are always two bytes long */
- if (i % 2)
- goto fail;
-
- mutex_lock(&chip->lock);
-
- ret = lp5521_load_program(chip, pattern);
- mutex_unlock(&chip->lock);
-
- if (ret) {
- dev_err(dev, "lp5521 failed loading pattern\n");
- return ret;
- }
-
- return len;
-fail:
- dev_err(dev, "lp5521 wrong pattern format\n");
- return -EINVAL;
-}
-
-static ssize_t show_mode(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct lp5521_chip *chip = dev_get_drvdata(dev);
-
- return sprintf(buf, "%s\n", chip->mode);
-}
-
-static ssize_t store_mode(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct lp5521_chip *chip = dev_get_drvdata(dev);
-
- mutex_lock(&chip->lock);
-
- if (!strncmp(buf, "run", 3))
- lp5521_set_mode(chip, LP5521_MODE_RUN);
- else if (!strncmp(buf, "load", 4))
- lp5521_set_mode(chip, LP5521_MODE_LOAD);
- else if (!strncmp(buf, "direct", 6))
- lp5521_set_mode(chip, LP5521_MODE_DIRECT_CONTROL);
-
- mutex_unlock(&chip->lock);
-
- return len;
-}
-
-static ssize_t show_current(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct i2c_client *client = to_i2c_client(dev);
- int ret = 0;
- u8 r_curr, g_curr, b_curr;
-
- ret |= lp5521_read(client, LP5521_REG_R_CNTRL, &r_curr);
- ret |= lp5521_read(client, LP5521_REG_G_CNTRL, &g_curr);
- ret |= lp5521_read(client, LP5521_REG_B_CNTRL, &b_curr);
-
- if (ret)
- return ret;
-
- r_curr = r_curr >> 4;
- g_curr = g_curr >> 4;
- b_curr = b_curr >> 4;
-
- if (r_curr == g_curr && g_curr == b_curr)
- return sprintf(buf, "%x\n", r_curr);
- else
- return sprintf(buf, "%x %x %x\n", r_curr, g_curr, b_curr);
-}
-
-static ssize_t store_current(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct lp5521_chip *chip = dev_get_drvdata(dev);
- struct i2c_client *client = chip->client;
- int ret;
- unsigned curr;
-
- ret = sscanf(buf, "%1x", &curr);
- if (ret != 1)
- return -EINVAL;
-
- /* current level is determined by the 4 upper bits, rest is ones */
- curr = (curr << 4) | 0x0f;
-
- mutex_lock(&chip->lock);
-
- ret |= lp5521_write(client, LP5521_REG_R_CNTRL, (u8)curr);
- ret |= lp5521_write(client, LP5521_REG_G_CNTRL, (u8)curr);
- ret |= lp5521_write(client, LP5521_REG_B_CNTRL, (u8)curr);
-
- mutex_unlock(&chip->lock);
-
- return len;
-}
-
-static DEVICE_ATTR(color, S_IRUGO | S_IWUGO, show_color, store_color);
-static DEVICE_ATTR(load, S_IWUGO, NULL, store_load);
-static DEVICE_ATTR(mode, S_IRUGO | S_IWUGO, show_mode, store_mode);
-static DEVICE_ATTR(active_channels, S_IRUGO | S_IWUGO,
- show_active_channels, store_active_channels);
-static DEVICE_ATTR(led_current, S_IRUGO | S_IWUGO, show_current, store_current);
-
-static int lp5521_register_sysfs(struct i2c_client *client)
-{
- struct device *dev = &client->dev;
- int ret;
-
- ret = device_create_file(dev, &dev_attr_color);
- if (ret)
- goto fail1;
- ret = device_create_file(dev, &dev_attr_load);
- if (ret)
- goto fail2;
- ret = device_create_file(dev, &dev_attr_active_channels);
- if (ret)
- goto fail3;
- ret = device_create_file(dev, &dev_attr_mode);
- if (ret)
- goto fail4;
- ret = device_create_file(dev, &dev_attr_led_current);
- if (ret)
- goto fail5;
- return 0;
-
-fail5:
- device_remove_file(dev, &dev_attr_mode);
-fail4:
- device_remove_file(dev, &dev_attr_active_channels);
-fail3:
- device_remove_file(dev, &dev_attr_load);
-fail2:
- device_remove_file(dev, &dev_attr_color);
-fail1:
- return ret;
-}
-
-static void lp5521_unregister_sysfs(struct i2c_client *client)
-{
- struct lp5521_chip *chip = i2c_get_clientdata(client);
- struct device *dev = &client->dev;
-
- device_remove_file(dev, &dev_attr_led_current);
- device_remove_file(dev, &dev_attr_mode);
- device_remove_file(dev, &dev_attr_active_channels);
- device_remove_file(dev, &dev_attr_color);
-
- if (!strcmp(chip->mode, LP5521_MODE_LOAD))
- device_remove_file(dev, &dev_attr_load);
-}
-
-/*--------------------------------------------------------------*/
-/* Set chip operating mode */
-/*--------------------------------------------------------------*/
-
-static int lp5521_set_mode(struct lp5521_chip *chip, char *mode)
-{
- struct i2c_client *client = chip->client ;
- int ret = 0;
-
- /* if in that mode already do nothing, except for run */
- if (!strcmp(mode, chip->mode) && strcmp(mode, LP5521_MODE_RUN))
- return 0;
-
- if (!strcmp(mode, LP5521_MODE_RUN))
- ret = lp5521_run_program(chip);
-
- if (!strcmp(mode, LP5521_MODE_LOAD))
- ret |= lp5521_write(client, LP5521_REG_OP_MODE, 0x15);
-
- if (!strcmp(mode, LP5521_MODE_DIRECT_CONTROL))
- ret |= lp5521_write(client, LP5521_REG_OP_MODE, 0x3F);
-
- chip->mode = mode;
-
- return ret;
-}
-
-/*--------------------------------------------------------------*/
-/* Probe, Attach, Remove */
-/*--------------------------------------------------------------*/
-static struct i2c_driver lp5521_driver;
-
-static int lp5521_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct lp5521_chip *chip;
- int ret = 0;
-
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
-
- chip->client = client;
- strncpy(client->name, LP5521_DRIVER_NAME, I2C_NAME_SIZE);
- i2c_set_clientdata(client, chip);
-
- mutex_init(&chip->lock);
-
- ret = lp5521_configure(client);
- if (ret < 0) {
- dev_err(&client->dev, "lp5521 error configuring chip \n");
- goto fail1;
- }
-
- /* Set default values */
- chip->mode = LP5521_MODE_DIRECT_CONTROL;
- chip->red = 1;
- chip->green = 1;
- chip->blue = 1;
-
- ret = lp5521_register_sysfs(client);
- if (ret)
- dev_err(&client->dev, "lp5521 registering sysfs failed \n");
-
- return ret;
-
-fail1:
- kfree(chip);
- return ret;
-}
-
-static int lp5521_remove(struct i2c_client *client)
-{
- struct lp5521_chip *chip = i2c_get_clientdata(client);
-
- lp5521_unregister_sysfs(client);
- kfree(chip);
-
- return 0;
-}
-
-static const struct i2c_device_id lp5521_id[] = {
- { LP5521_DRIVER_NAME, 0},
- { },
-};
-MODULE_DEVICE_TABLE(i2c, lp5521_id);
-
-static struct i2c_driver lp5521_driver = {
- .driver = {
- .name = LP5521_DRIVER_NAME,
- },
- .probe = lp5521_probe,
- .remove = __devexit_p(lp5521_remove),
- .id_table = lp5521_id,
-};
-
-static int __init lp5521_init(void)
-{
- return i2c_add_driver(&lp5521_driver);
-}
-
-static void __exit lp5521_exit(void)
-{
- i2c_del_driver(&lp5521_driver);
-}
-
-MODULE_AUTHOR("Mathias Nyman <mathias.nyman@nokia.com>");
-MODULE_DESCRIPTION("lp5521 LED driver");
-MODULE_LICENSE("GPL");
-
-module_init(lp5521_init);
-module_exit(lp5521_exit);
--
1.6.1.3