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>

1 files changed, 0 insertions, 461 deletions

diff --git a/drivers/leds/leds-pca9633.c b/drivers/leds/leds-pca9633.c
deleted file mode 100644
index aaa1c4a0dbc5..000000000000
--- a/drivers/leds/leds-pca9633.c
+++ /dev/null
@@ -1,461 +0,0 @@
-/*
- * Copyright 2011 bct electronic GmbH
- * Copyright 2013 Qtechnology/AS
- *
- * Author: Peter Meerwald <p.meerwald@bct-electronic.com>
- * Author: Ricardo Ribalda <ricardo.ribalda@gmail.com>
- *
- * Based on leds-pca955x.c
- *
- * This file is subject to the terms and conditions of version 2 of
- * the GNU General Public License.  See the file COPYING in the main
- * directory of this archive for more details.
- *
- * LED driver for the PCA9633 I2C LED driver (7-bit slave address 0x62)
- * LED driver for the PCA9634 I2C LED driver (7-bit slave address set by hw.)
- *
- * Note that hardware blinking violates the leds infrastructure driver
- * interface since the hardware only supports blinking all LEDs with the
- * same delay_on/delay_off rates.  That is, only the LEDs that are set to
- * blink will actually blink but all LEDs that are set to blink will blink
- * 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'
- * or by adding the 'nxp,hw-blink' property to the DTS.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/leds.h>
-#include <linux/err.h>
-#include <linux/i2c.h>
-#include <linux/workqueue.h>
-#include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/platform_data/leds-pca9633.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 PCA9633_MODE2_DMBLNK	0x20	/* Enable blinking */
-
-#define PCA9633_MODE1		0x00
-#define PCA9633_MODE2		0x01
-#define PCA9633_PWM_BASE	0x02
-
-enum pca9633_type {
-	pca9633,
-	pca9634,
-};
-
-struct pca9633_chipdef {
-	u8			grppwm;
-	u8			grpfreq;
-	u8			ledout_base;
-	int			n_leds;
-};
-
-static struct pca9633_chipdef pca9633_chipdefs[] = {
-	[pca9633] = {
-		.grppwm		= 0x6,
-		.grpfreq	= 0x7,
-		.ledout_base	= 0x8,
-		.n_leds		= 4,
-	},
-	[pca9634] = {
-		.grppwm		= 0xa,
-		.grpfreq	= 0xb,
-		.ledout_base	= 0xc,
-		.n_leds		= 8,
-	},
-};
-
-/* Total blink period in milliseconds */
-#define PCA9632_BLINK_PERIOD_MIN	42
-#define PCA9632_BLINK_PERIOD_MAX	10667
-
-static const struct i2c_device_id pca9633_id[] = {
-	{ "pca9632", pca9633 },
-	{ "pca9633", pca9633 },
-	{ "pca9634", pca9634 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, pca9633_id);
-
-enum pca9633_cmd {
-	BRIGHTNESS_SET,
-	BLINK_SET,
-};
-
-struct pca9633_led;
-
-struct pca9633 {
-	struct pca9633_chipdef *chipdef;
-	struct mutex mutex;
-	struct i2c_client *client;
-	struct pca9633_led *leds;
-};
-
-struct pca9633_led {
-	struct pca9633 *chip;
-	struct work_struct work;
-	enum led_brightness brightness;
-	struct led_classdev led_cdev;
-	int led_num; /* 0 .. 7 potentially */
-	enum pca9633_cmd cmd;
-	char name[32];
-	u8 gdc;
-	u8 gfrq;
-};
-
-static void pca9633_brightness_work(struct pca9633_led *pca9633)
-{
-	u8 ledout_addr = pca9633->chip->chipdef->ledout_base
-		+ (pca9633->led_num / 4);
-	u8 ledout;
-	int shift = 2 * (pca9633->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) {
-	case LED_FULL:
-		i2c_smbus_write_byte_data(pca9633->chip->client, ledout_addr,
-			(ledout & ~mask) | (PCA9633_LED_ON << shift));
-		break;
-	case LED_OFF:
-		i2c_smbus_write_byte_data(pca9633->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));
-		break;
-	}
-	mutex_unlock(&pca9633->chip->mutex);
-}
-
-static void pca9633_blink_work(struct pca9633_led *pca9633)
-{
-	u8 ledout_addr = pca9633->chip->chipdef->ledout_base +
-		(pca9633->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 mask = 0x3 << shift;
-
-	i2c_smbus_write_byte_data(pca9633->chip->client,
-			pca9633->chip->chipdef->grppwm,	pca9633->gdc);
-
-	i2c_smbus_write_byte_data(pca9633->chip->client,
-			pca9633->chip->chipdef->grpfreq, pca9633->gfrq);
-
-	if (!(mode2 & PCA9633_MODE2_DMBLNK))
-		i2c_smbus_write_byte_data(pca9633->chip->client, PCA9633_MODE2,
-			mode2 | PCA9633_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);
-}
-
-static void pca9633_work(struct work_struct *work)
-{
-	struct pca9633_led *pca9633 = container_of(work,
-		struct pca9633_led, work);
-
-	switch (pca9633->cmd) {
-	case BRIGHTNESS_SET:
-		pca9633_brightness_work(pca9633);
-		break;
-	case BLINK_SET:
-		pca9633_blink_work(pca9633);
-		break;
-	}
-}
-
-static void pca9633_led_set(struct led_classdev *led_cdev,
-	enum led_brightness value)
-{
-	struct pca9633_led *pca9633;
-
-	pca9633 = container_of(led_cdev, struct pca9633_led, led_cdev);
-
-	pca9633->cmd = BRIGHTNESS_SET;
-	pca9633->brightness = value;
-
-	/*
-	 * Must use workqueue for the actual I/O since I2C operations
-	 * can sleep.
-	 */
-	schedule_work(&pca9633->work);
-}
-
-static int pca9633_blink_set(struct led_classdev *led_cdev,
-		unsigned long *delay_on, unsigned long *delay_off)
-{
-	struct pca9633_led *pca9633;
-	unsigned long time_on, time_off, period;
-	u8 gdc, gfrq;
-
-	pca9633 = container_of(led_cdev, struct pca9633_led, led_cdev);
-
-	time_on = *delay_on;
-	time_off = *delay_off;
-
-	/* If both zero, pick reasonable defaults of 500ms each */
-	if (!time_on && !time_off) {
-		time_on = 500;
-		time_off = 500;
-	}
-
-	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)) {
-		time_on = 500;
-		time_off = 500;
-		period = time_on + time_off;
-	}
-
-	/*
-	 * From manual: duty cycle = (GDC / 256) ->
-	 *	(time_on / period) = (GDC / 256) ->
-	 *		GDC = ((time_on * 256) / period)
-	 */
-	gdc = (time_on * 256) / period;
-
-	/*
-	 * From manual: period = ((GFRQ + 1) / 24) in seconds.
-	 * So, period (in ms) = (((GFRQ + 1) / 24) * 1000) ->
-	 *		GFRQ = ((period * 24 / 1000) - 1)
-	 */
-	gfrq = (period * 24 / 1000) - 1;
-
-	pca9633->cmd = BLINK_SET;
-	pca9633->gdc = gdc;
-	pca9633->gfrq = gfrq;
-
-	/*
-	 * Must use workqueue for the actual I/O since I2C operations
-	 * can sleep.
-	 */
-	schedule_work(&pca9633->work);
-
-	*delay_on = time_on;
-	*delay_off = time_off;
-
-	return 0;
-}
-
-#if IS_ENABLED(CONFIG_OF)
-static struct pca9633_platform_data *
-pca9633_dt_init(struct i2c_client *client, struct pca9633_chipdef *chip)
-{
-	struct device_node *np = client->dev.of_node, *child;
-	struct pca9633_platform_data *pdata;
-	struct led_info *pca9633_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,
-			sizeof(struct led_info) * chip->n_leds, GFP_KERNEL);
-	if (!pca9633_leds)
-		return ERR_PTR(-ENOMEM);
-
-	for_each_child_of_node(np, child) {
-		struct led_info led;
-		u32 reg;
-		int res;
-
-		led.name =
-			of_get_property(child, "label", NULL) ? : child->name;
-		led.default_trigger =
-			of_get_property(child, "linux,default-trigger", NULL);
-		res = of_property_read_u32(child, "reg", &reg);
-		if (res != 0)
-			continue;
-		pca9633_leds[reg] = led;
-	}
-	pdata = devm_kzalloc(&client->dev,
-			     sizeof(struct pca9633_platform_data), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	pdata->leds.leds = pca9633_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;
-	else
-		pdata->outdrv = PCA9633_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;
-	else
-		pdata->blink_type = PCA9633_SW_BLINK;
-
-	return pdata;
-}
-
-static const struct of_device_id of_pca9633_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)
-{
-	return ERR_PTR(-ENODEV);
-}
-#endif
-
-static int pca9633_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;
-	int i, err;
-
-	chip = &pca9633_chipdefs[id->driver_data];
-	pdata = dev_get_platdata(&client->dev);
-
-	if (!pdata) {
-		pdata = pca9633_dt_init(client, chip);
-		if (IS_ERR(pdata)) {
-			dev_warn(&client->dev, "could not parse configuration\n");
-			pdata = NULL;
-		}
-	}
-
-	if (pdata && (pdata->leds.num_leds < 1 ||
-				 pdata->leds.num_leds > chip->n_leds)) {
-		dev_err(&client->dev, "board info must claim 1-%d LEDs",
-								chip->n_leds);
-		return -EINVAL;
-	}
-
-	pca9633_chip = devm_kzalloc(&client->dev, sizeof(*pca9633_chip),
-								GFP_KERNEL);
-	if (!pca9633_chip)
-		return -ENOMEM;
-	pca9633 = devm_kzalloc(&client->dev, chip->n_leds * sizeof(*pca9633),
-								GFP_KERNEL);
-	if (!pca9633)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, pca9633_chip);
-
-	mutex_init(&pca9633_chip->mutex);
-	pca9633_chip->chipdef = chip;
-	pca9633_chip->client = client;
-	pca9633_chip->leds = pca9633;
-
-	/* Turn off LEDs by default*/
-	i2c_smbus_write_byte_data(client, chip->ledout_base, 0x00);
-	if (chip->n_leds > 4)
-		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;
-
-		/* 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",
-					 pdata->leds.leds[i].name);
-			if (pdata->leds.leds[i].default_trigger)
-				pca9633[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,
-				 client->addr, i);
-
-		pca9633[i].led_cdev.name = pca9633[i].name;
-		pca9633[i].led_cdev.brightness_set = pca9633_led_set;
-
-		if (pdata && pdata->blink_type == PCA9633_HW_BLINK)
-			pca9633[i].led_cdev.blink_set = pca9633_blink_set;
-
-		INIT_WORK(&pca9633[i].work, pca9633_work);
-
-		err = led_classdev_register(&client->dev, &pca9633[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);
-
-	/* 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);
-
-	return 0;
-
-exit:
-	while (i--) {
-		led_classdev_unregister(&pca9633[i].led_cdev);
-		cancel_work_sync(&pca9633[i].work);
-	}
-
-	return err;
-}
-
-static int pca9633_remove(struct i2c_client *client)
-{
-	struct pca9633 *pca9633 = 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);
-	}
-
-	return 0;
-}
-
-static struct i2c_driver pca9633_driver = {
-	.driver = {
-		.name	= "leds-pca9633",
-		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(of_pca9633_match),
-	},
-	.probe	= pca9633_probe,
-	.remove	= pca9633_remove,
-	.id_table = pca9633_id,
-};
-
-module_i2c_driver(pca9633_driver);
-
-MODULE_AUTHOR("Peter Meerwald <p.meerwald@bct-electronic.com>");
-MODULE_DESCRIPTION("PCA9633 LED driver");
-MODULE_LICENSE("GPL v2");