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leds-pca9633: Rename to leds-pca963x 

The driver now supports the chips pca9633 and pca9634, therefore we
rename the files to more generic and meaningul names

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
This commit is contained in:
Ricardo Ribalda Delgado 2013-08-14 14:23:50 -07:00 committed by Bryan Wu
parent a7d0e9884f
commit 56a1740c21
5 changed files with 160 additions and 159 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

0
Documentation/devicetree/bindings/leds/pca9633.txt → Documentation/devicetree/bindings/leds/pca963x.txt
View File

2
drivers/leds/Kconfig
View File

@ -291,7 +291,7 @@ config LEDS_PCA955X
LED driver chips accessed via the I2C bus. Supported
devices include PCA9550, PCA9551, PCA9552, and PCA9553.
config LEDS_PCA9633
config LEDS_PCA963X
tristate "LED support for PCA963x I2C chip"
depends on LEDS_CLASS
depends on I2C

2
drivers/leds/Makefile
View File

@ -35,7 +35,7 @@ obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
obj-$(CONFIG_LEDS_OT200) += leds-ot200.o
obj-$(CONFIG_LEDS_FSG) += leds-fsg.o
obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o
obj-$(CONFIG_LEDS_PCA9633) += leds-pca9633.o
obj-$(CONFIG_LEDS_PCA963X) += leds-pca963x.o
obj-$(CONFIG_LEDS_DA903X) += leds-da903x.o
obj-$(CONFIG_LEDS_DA9052) += leds-da9052.o
obj-$(CONFIG_LEDS_WM831X_STATUS) += leds-wm831x-status.o

288
drivers/leds/leds-pca9633.c → drivers/leds/leds-pca963x.c
View File

@ -21,7 +21,7 @@
* in identical fashion. The delay_on/delay_off values of the last LED
* that is set to blink will be used for all of the blinking LEDs.
* Hardware blinking is disabled by default but can be enabled by setting
* the 'blink_type' member in the platform_data struct to 'PCA9633_HW_BLINK'
* the 'blink_type' member in the platform_data struct to 'PCA963X_HW_BLINK'
* or by adding the 'nxp,hw-blink' property to the DTS.
*/
@ -35,33 +35,33 @@
#include <linux/workqueue.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/platform_data/leds-pca9633.h>
#include <linux/platform_data/leds-pca963x.h>
/* LED select registers determine the source that drives LED outputs */
#define PCA9633_LED_OFF 0x0 /* LED driver off */
#define PCA9633_LED_ON 0x1 /* LED driver on */
#define PCA9633_LED_PWM 0x2 /* Controlled through PWM */
#define PCA9633_LED_GRP_PWM 0x3 /* Controlled through PWM/GRPPWM */
#define PCA963X_LED_OFF 0x0 /* LED driver off */
#define PCA963X_LED_ON 0x1 /* LED driver on */
#define PCA963X_LED_PWM 0x2 /* Controlled through PWM */
#define PCA963X_LED_GRP_PWM 0x3 /* Controlled through PWM/GRPPWM */
#define PCA9633_MODE2_DMBLNK 0x20 /* Enable blinking */
#define PCA963X_MODE2_DMBLNK 0x20 /* Enable blinking */
#define PCA9633_MODE1 0x00
#define PCA9633_MODE2 0x01
#define PCA9633_PWM_BASE 0x02
#define PCA963X_MODE1 0x00
#define PCA963X_MODE2 0x01
#define PCA963X_PWM_BASE 0x02
enum pca9633_type {
enum pca963x_type {
pca9633,
pca9634,
};
struct pca9633_chipdef {
struct pca963x_chipdef {
u8 grppwm;
u8 grpfreq;
u8 ledout_base;
int n_leds;
};
static struct pca9633_chipdef pca9633_chipdefs[] = {
static struct pca963x_chipdef pca963x_chipdefs[] = {
[pca9633] = {
.grppwm = 0x6,
.grpfreq = 0x7,
@ -77,141 +77,141 @@ static struct pca9633_chipdef pca9633_chipdefs[] = {
};
/* Total blink period in milliseconds */
#define PCA9632_BLINK_PERIOD_MIN 42
#define PCA9632_BLINK_PERIOD_MAX 10667
#define PCA963X_BLINK_PERIOD_MIN 42
#define PCA963X_BLINK_PERIOD_MAX 10667
static const struct i2c_device_id pca9633_id[] = {
static const struct i2c_device_id pca963x_id[] = {
{ "pca9632", pca9633 },
{ "pca9633", pca9633 },
{ "pca9634", pca9634 },
{ }
};
MODULE_DEVICE_TABLE(i2c, pca9633_id);
MODULE_DEVICE_TABLE(i2c, pca963x_id);
enum pca9633_cmd {
enum pca963x_cmd {
BRIGHTNESS_SET,
BLINK_SET,
};
struct pca9633_led;
struct pca963x_led;
struct pca9633 {
struct pca9633_chipdef *chipdef;
struct pca963x {
struct pca963x_chipdef *chipdef;
struct mutex mutex;
struct i2c_client *client;
struct pca9633_led *leds;
struct pca963x_led *leds;
};
struct pca9633_led {
struct pca9633 *chip;
struct pca963x_led {
struct pca963x *chip;
struct work_struct work;
enum led_brightness brightness;
struct led_classdev led_cdev;
int led_num; /* 0 .. 7 potentially */
enum pca9633_cmd cmd;
enum pca963x_cmd cmd;
char name[32];
u8 gdc;
u8 gfrq;
};
static void pca9633_brightness_work(struct pca9633_led *pca9633)
static void pca963x_brightness_work(struct pca963x_led *pca963x)
{
u8 ledout_addr = pca9633->chip->chipdef->ledout_base
+ (pca9633->led_num / 4);
u8 ledout_addr = pca963x->chip->chipdef->ledout_base
+ (pca963x->led_num / 4);
u8 ledout;
int shift = 2 * (pca9633->led_num % 4);
int shift = 2 * (pca963x->led_num % 4);
u8 mask = 0x3 << shift;
mutex_lock(&pca9633->chip->mutex);
ledout = i2c_smbus_read_byte_data(pca9633->chip->client, ledout_addr);
switch (pca9633->brightness) {
mutex_lock(&pca963x->chip->mutex);
ledout = i2c_smbus_read_byte_data(pca963x->chip->client, ledout_addr);
switch (pca963x->brightness) {
case LED_FULL:
i2c_smbus_write_byte_data(pca9633->chip->client, ledout_addr,
(ledout & ~mask) | (PCA9633_LED_ON << shift));
i2c_smbus_write_byte_data(pca963x->chip->client, ledout_addr,
(ledout & ~mask) | (PCA963X_LED_ON << shift));
break;
case LED_OFF:
i2c_smbus_write_byte_data(pca9633->chip->client, ledout_addr,
i2c_smbus_write_byte_data(pca963x->chip->client, ledout_addr,
ledout & ~mask);
break;
default:
i2c_smbus_write_byte_data(pca9633->chip->client,
PCA9633_PWM_BASE + pca9633->led_num,
pca9633->brightness);
i2c_smbus_write_byte_data(pca9633->chip->client, ledout_addr,
(ledout & ~mask) | (PCA9633_LED_PWM << shift));
i2c_smbus_write_byte_data(pca963x->chip->client,
PCA963X_PWM_BASE + pca963x->led_num,
pca963x->brightness);
i2c_smbus_write_byte_data(pca963x->chip->client, ledout_addr,
(ledout & ~mask) | (PCA963X_LED_PWM << shift));
break;
}
mutex_unlock(&pca9633->chip->mutex);
mutex_unlock(&pca963x->chip->mutex);
}
static void pca9633_blink_work(struct pca9633_led *pca9633)
static void pca963x_blink_work(struct pca963x_led *pca963x)
{
u8 ledout_addr = pca9633->chip->chipdef->ledout_base +
(pca9633->led_num / 4);
u8 ledout_addr = pca963x->chip->chipdef->ledout_base +
(pca963x->led_num / 4);
u8 ledout;
u8 mode2 = i2c_smbus_read_byte_data(pca9633->chip->client,
PCA9633_MODE2);
int shift = 2 * (pca9633->led_num % 4);
u8 mode2 = i2c_smbus_read_byte_data(pca963x->chip->client,
PCA963X_MODE2);
int shift = 2 * (pca963x->led_num % 4);
u8 mask = 0x3 << shift;
i2c_smbus_write_byte_data(pca9633->chip->client,
pca9633->chip->chipdef->grppwm, pca9633->gdc);
i2c_smbus_write_byte_data(pca963x->chip->client,
pca963x->chip->chipdef->grppwm, pca963x->gdc);
i2c_smbus_write_byte_data(pca9633->chip->client,
pca9633->chip->chipdef->grpfreq, pca9633->gfrq);
i2c_smbus_write_byte_data(pca963x->chip->client,
pca963x->chip->chipdef->grpfreq, pca963x->gfrq);
if (!(mode2 & PCA9633_MODE2_DMBLNK))
i2c_smbus_write_byte_data(pca9633->chip->client, PCA9633_MODE2,
mode2 | PCA9633_MODE2_DMBLNK);
if (!(mode2 & PCA963X_MODE2_DMBLNK))
i2c_smbus_write_byte_data(pca963x->chip->client, PCA963X_MODE2,
mode2 | PCA963X_MODE2_DMBLNK);
mutex_lock(&pca9633->chip->mutex);
ledout = i2c_smbus_read_byte_data(pca9633->chip->client, ledout_addr);
if ((ledout & mask) != (PCA9633_LED_GRP_PWM << shift))
i2c_smbus_write_byte_data(pca9633->chip->client, ledout_addr,
(ledout & ~mask) | (PCA9633_LED_GRP_PWM << shift));
mutex_unlock(&pca9633->chip->mutex);
mutex_lock(&pca963x->chip->mutex);
ledout = i2c_smbus_read_byte_data(pca963x->chip->client, ledout_addr);
if ((ledout & mask) != (PCA963X_LED_GRP_PWM << shift))
i2c_smbus_write_byte_data(pca963x->chip->client, ledout_addr,
(ledout & ~mask) | (PCA963X_LED_GRP_PWM << shift));
mutex_unlock(&pca963x->chip->mutex);
}
static void pca9633_work(struct work_struct *work)
static void pca963x_work(struct work_struct *work)
{
struct pca9633_led *pca9633 = container_of(work,
struct pca9633_led, work);
struct pca963x_led *pca963x = container_of(work,
struct pca963x_led, work);
switch (pca9633->cmd) {
switch (pca963x->cmd) {
case BRIGHTNESS_SET:
pca9633_brightness_work(pca9633);
pca963x_brightness_work(pca963x);
break;
case BLINK_SET:
pca9633_blink_work(pca9633);
pca963x_blink_work(pca963x);
break;
}
}
static void pca9633_led_set(struct led_classdev *led_cdev,
static void pca963x_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct pca9633_led *pca9633;
struct pca963x_led *pca963x;
pca9633 = container_of(led_cdev, struct pca9633_led, led_cdev);
pca963x = container_of(led_cdev, struct pca963x_led, led_cdev);
pca9633->cmd = BRIGHTNESS_SET;
pca9633->brightness = value;
pca963x->cmd = BRIGHTNESS_SET;
pca963x->brightness = value;
/*
* Must use workqueue for the actual I/O since I2C operations
* can sleep.
*/
schedule_work(&pca9633->work);
schedule_work(&pca963x->work);
}
static int pca9633_blink_set(struct led_classdev *led_cdev,
static int pca963x_blink_set(struct led_classdev *led_cdev,
unsigned long *delay_on, unsigned long *delay_off)
{
struct pca9633_led *pca9633;
struct pca963x_led *pca963x;
unsigned long time_on, time_off, period;
u8 gdc, gfrq;
pca9633 = container_of(led_cdev, struct pca9633_led, led_cdev);
pca963x = container_of(led_cdev, struct pca963x_led, led_cdev);
time_on = *delay_on;
time_off = *delay_off;
@ -225,8 +225,8 @@ static int pca9633_blink_set(struct led_classdev *led_cdev,
period = time_on + time_off;
/* If period not supported by hardware, default to someting sane. */
if ((period < PCA9632_BLINK_PERIOD_MIN) ||
(period > PCA9632_BLINK_PERIOD_MAX)) {
if ((period < PCA963X_BLINK_PERIOD_MIN) ||
(period > PCA963X_BLINK_PERIOD_MAX)) {
time_on = 500;
time_off = 500;
period = time_on + time_off;
@ -246,15 +246,15 @@ static int pca9633_blink_set(struct led_classdev *led_cdev,
*/
gfrq = (period * 24 / 1000) - 1;
pca9633->cmd = BLINK_SET;
pca9633->gdc = gdc;
pca9633->gfrq = gfrq;
pca963x->cmd = BLINK_SET;
pca963x->gdc = gdc;
pca963x->gfrq = gfrq;
/*
* Must use workqueue for the actual I/O since I2C operations
* can sleep.
*/
schedule_work(&pca9633->work);
schedule_work(&pca963x->work);
*delay_on = time_on;
*delay_off = time_off;
@ -263,21 +263,21 @@ static int pca9633_blink_set(struct led_classdev *led_cdev,
}
#if IS_ENABLED(CONFIG_OF)
static struct pca9633_platform_data *
pca9633_dt_init(struct i2c_client *client, struct pca9633_chipdef *chip)
static struct pca963x_platform_data *
pca963x_dt_init(struct i2c_client *client, struct pca963x_chipdef *chip)
{
struct device_node *np = client->dev.of_node, *child;
struct pca9633_platform_data *pdata;
struct led_info *pca9633_leds;
struct pca963x_platform_data *pdata;
struct led_info *pca963x_leds;
int count;
count = of_get_child_count(np);
if (!count || count > chip->n_leds)
return ERR_PTR(-ENODEV);
pca9633_leds = devm_kzalloc(&client->dev,
pca963x_leds = devm_kzalloc(&client->dev,
sizeof(struct led_info) * chip->n_leds, GFP_KERNEL);
if (!pca9633_leds)
if (!pca963x_leds)
return ERR_PTR(-ENOMEM);
for_each_child_of_node(np, child) {
@ -292,59 +292,59 @@ pca9633_dt_init(struct i2c_client *client, struct pca9633_chipdef *chip)
res = of_property_read_u32(child, "reg", &reg);
if (res != 0)
continue;
pca9633_leds[reg] = led;
pca963x_leds[reg] = led;
}
pdata = devm_kzalloc(&client->dev,
sizeof(struct pca9633_platform_data), GFP_KERNEL);
sizeof(struct pca963x_platform_data), GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
pdata->leds.leds = pca9633_leds;
pdata->leds.leds = pca963x_leds;
pdata->leds.num_leds = count;
/* default to open-drain unless totem pole (push-pull) is specified */
if (of_property_read_bool(np, "nxp,totem-pole"))
pdata->outdrv = PCA9633_TOTEM_POLE;
pdata->outdrv = PCA963X_TOTEM_POLE;
else
pdata->outdrv = PCA9633_OPEN_DRAIN;
pdata->outdrv = PCA963X_OPEN_DRAIN;
/* default to software blinking unless hardware blinking is specified */
if (of_property_read_bool(np, "nxp,hw-blink"))
pdata->blink_type = PCA9633_HW_BLINK;
pdata->blink_type = PCA963X_HW_BLINK;
else
pdata->blink_type = PCA9633_SW_BLINK;
pdata->blink_type = PCA963X_SW_BLINK;
return pdata;
}
static const struct of_device_id of_pca9633_match[] = {
static const struct of_device_id of_pca963x_match[] = {
{ .compatible = "nxp,pca9632", },
{ .compatible = "nxp,pca9633", },
{ .compatible = "nxp,pca9634", },
{},
};
#else
static struct pca9633_platform_data *
pca9633_dt_init(struct i2c_client *client, struct pca9633_chipdef *chip)
static struct pca963x_platform_data *
pca963x_dt_init(struct i2c_client *client, struct pca963x_chipdef *chip)
{
return ERR_PTR(-ENODEV);
}
#endif
static int pca9633_probe(struct i2c_client *client,
static int pca963x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct pca9633 *pca9633_chip;
struct pca9633_led *pca9633;
struct pca9633_platform_data *pdata;
struct pca9633_chipdef *chip;
struct pca963x *pca963x_chip;
struct pca963x_led *pca963x;
struct pca963x_platform_data *pdata;
struct pca963x_chipdef *chip;
int i, err;
chip = &pca9633_chipdefs[id->driver_data];
chip = &pca963x_chipdefs[id->driver_data];
pdata = dev_get_platdata(&client->dev);
if (!pdata) {
pdata = pca9633_dt_init(client, chip);
pdata = pca963x_dt_init(client, chip);
if (IS_ERR(pdata)) {
dev_warn(&client->dev, "could not parse configuration\n");
pdata = NULL;
@ -358,21 +358,21 @@ static int pca9633_probe(struct i2c_client *client,
return -EINVAL;
}
pca9633_chip = devm_kzalloc(&client->dev, sizeof(*pca9633_chip),
pca963x_chip = devm_kzalloc(&client->dev, sizeof(*pca963x_chip),
GFP_KERNEL);
if (!pca9633_chip)
if (!pca963x_chip)
return -ENOMEM;
pca9633 = devm_kzalloc(&client->dev, chip->n_leds * sizeof(*pca9633),
pca963x = devm_kzalloc(&client->dev, chip->n_leds * sizeof(*pca963x),
GFP_KERNEL);
if (!pca9633)
if (!pca963x)
return -ENOMEM;
i2c_set_clientdata(client, pca9633_chip);
i2c_set_clientdata(client, pca963x_chip);
mutex_init(&pca9633_chip->mutex);
pca9633_chip->chipdef = chip;
pca9633_chip->client = client;
pca9633_chip->leds = pca9633;
mutex_init(&pca963x_chip->mutex);
pca963x_chip->chipdef = chip;
pca963x_chip->client = client;
pca963x_chip->leds = pca963x;
/* Turn off LEDs by default*/
i2c_smbus_write_byte_data(client, chip->ledout_base, 0x00);
@ -380,82 +380,82 @@ static int pca9633_probe(struct i2c_client *client,
i2c_smbus_write_byte_data(client, chip->ledout_base + 1, 0x00);
for (i = 0; i < chip->n_leds; i++) {
pca9633[i].led_num = i;
pca9633[i].chip = pca9633_chip;
pca963x[i].led_num = i;
pca963x[i].chip = pca963x_chip;
/* Platform data can specify LED names and default triggers */
if (pdata && i < pdata->leds.num_leds) {
if (pdata->leds.leds[i].name)
snprintf(pca9633[i].name,
sizeof(pca9633[i].name), "pca9633:%s",
snprintf(pca963x[i].name,
sizeof(pca963x[i].name), "pca963x:%s",
pdata->leds.leds[i].name);
if (pdata->leds.leds[i].default_trigger)
pca9633[i].led_cdev.default_trigger =
pca963x[i].led_cdev.default_trigger =
pdata->leds.leds[i].default_trigger;
}
if (!pdata || i >= pdata->leds.num_leds ||
!pdata->leds.leds[i].name)
snprintf(pca9633[i].name, sizeof(pca9633[i].name),
"pca9633:%d:%.2x:%d", client->adapter->nr,
snprintf(pca963x[i].name, sizeof(pca963x[i].name),
"pca963x:%d:%.2x:%d", client->adapter->nr,
client->addr, i);
pca9633[i].led_cdev.name = pca9633[i].name;
pca9633[i].led_cdev.brightness_set = pca9633_led_set;
pca963x[i].led_cdev.name = pca963x[i].name;
pca963x[i].led_cdev.brightness_set = pca963x_led_set;
if (pdata && pdata->blink_type == PCA9633_HW_BLINK)
pca9633[i].led_cdev.blink_set = pca9633_blink_set;
if (pdata && pdata->blink_type == PCA963X_HW_BLINK)
pca963x[i].led_cdev.blink_set = pca963x_blink_set;
INIT_WORK(&pca9633[i].work, pca9633_work);
INIT_WORK(&pca963x[i].work, pca963x_work);
err = led_classdev_register(&client->dev, &pca9633[i].led_cdev);
err = led_classdev_register(&client->dev, &pca963x[i].led_cdev);
if (err < 0)
goto exit;
}
/* Disable LED all-call address and set normal mode */
i2c_smbus_write_byte_data(client, PCA9633_MODE1, 0x00);
i2c_smbus_write_byte_data(client, PCA963X_MODE1, 0x00);
/* Configure output: open-drain or totem pole (push-pull) */
if (pdata && pdata->outdrv == PCA9633_OPEN_DRAIN)
i2c_smbus_write_byte_data(client, PCA9633_MODE2, 0x01);
if (pdata && pdata->outdrv == PCA963X_OPEN_DRAIN)
i2c_smbus_write_byte_data(client, PCA963X_MODE2, 0x01);
return 0;
exit:
while (i--) {
led_classdev_unregister(&pca9633[i].led_cdev);
cancel_work_sync(&pca9633[i].work);
led_classdev_unregister(&pca963x[i].led_cdev);
cancel_work_sync(&pca963x[i].work);
}
return err;
}
static int pca9633_remove(struct i2c_client *client)
static int pca963x_remove(struct i2c_client *client)
{
struct pca9633 *pca9633 = i2c_get_clientdata(client);
struct pca963x *pca963x = i2c_get_clientdata(client);
int i;
for (i = 0; i < pca9633->chipdef->n_leds; i++) {
led_classdev_unregister(&pca9633->leds[i].led_cdev);
cancel_work_sync(&pca9633->leds[i].work);
for (i = 0; i < pca963x->chipdef->n_leds; i++) {
led_classdev_unregister(&pca963x->leds[i].led_cdev);
cancel_work_sync(&pca963x->leds[i].work);
}
return 0;
}
static struct i2c_driver pca9633_driver = {
static struct i2c_driver pca963x_driver = {
.driver = {
.name = "leds-pca9633",
.name = "leds-pca963x",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(of_pca9633_match),
.of_match_table = of_match_ptr(of_pca963x_match),
},
.probe = pca9633_probe,
.remove = pca9633_remove,
.id_table = pca9633_id,
.probe = pca963x_probe,
.remove = pca963x_remove,
.id_table = pca963x_id,
};
module_i2c_driver(pca9633_driver);
module_i2c_driver(pca963x_driver);
MODULE_AUTHOR("Peter Meerwald <p.meerwald@bct-electronic.com>");
MODULE_DESCRIPTION("PCA9633 LED driver");
MODULE_DESCRIPTION("PCA963X LED driver");
MODULE_LICENSE("GPL v2");

27
include/linux/platform_data/leds-pca9633.h → include/linux/platform_data/leds-pca963x.h
View File

@ -1,7 +1,8 @@
/*
* PCA9633 LED chip driver.
* PCA963X LED chip driver.
*
* Copyright 2012 bct electronic GmbH
* Copyright 2013 Qtechnology A/S
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -18,24 +19,24 @@
* 02110-1301 USA
*/
#ifndef __LINUX_PCA9633_H
#define __LINUX_PCA9633_H
#ifndef __LINUX_PCA963X_H
#define __LINUX_PCA963X_H
#include <linux/leds.h>
enum pca9633_outdrv {
PCA9633_OPEN_DRAIN,
PCA9633_TOTEM_POLE, /* aka push-pull */
enum pca963x_outdrv {
PCA963X_OPEN_DRAIN,
PCA963X_TOTEM_POLE, /* aka push-pull */
};
enum pca9633_blink_type {
PCA9633_SW_BLINK,
PCA9633_HW_BLINK,
enum pca963x_blink_type {
PCA963X_SW_BLINK,
PCA963X_HW_BLINK,
};
struct pca9633_platform_data {
struct pca963x_platform_data {
struct led_platform_data leds;
enum pca9633_outdrv outdrv;
enum pca9633_blink_type blink_type;
enum pca963x_outdrv outdrv;
enum pca963x_blink_type blink_type;
};
#endif /* __LINUX_PCA9633_H*/
#endif /* __LINUX_PCA963X_H*/