From: Dan Murphy <dmurphy@ti.com>
To: <jacek.anaszewski@gmail.com>, <pavel@ucw.cz>
Cc: <linux-leds@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Dan Murphy <dmurphy@ti.com>
Subject: [PATCH v8 9/9] leds: Update the lp55xx to use the multi color framework
Date: Fri, 20 Sep 2019 12:41:39 -0500 [thread overview]
Message-ID: <20190920174139.30079-10-dmurphy@ti.com> (raw)
In-Reply-To: <20190920174139.30079-1-dmurphy@ti.com>
Update the lp5523 to use the multi color framework.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
drivers/leds/leds-lp5523.c | 13 +++
drivers/leds/leds-lp55xx-common.c | 131 ++++++++++++++++++----
drivers/leds/leds-lp55xx-common.h | 9 ++
include/linux/platform_data/leds-lp55xx.h | 6 +
4 files changed, 137 insertions(+), 22 deletions(-)
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index d0b931a136b9..8b2cdb98fed6 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -791,6 +791,18 @@ static ssize_t store_master_fader_leds(struct device *dev,
return ret;
}
+static int lp5523_led_intensity(struct lp55xx_led *led, int chan_num)
+{
+ struct lp55xx_chip *chip = led->chip;
+ int ret;
+
+ mutex_lock(&chip->lock);
+ ret = lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + chan_num,
+ led->brightness);
+ mutex_unlock(&chip->lock);
+ return ret;
+}
+
static int lp5523_led_brightness(struct lp55xx_led *led)
{
struct lp55xx_chip *chip = led->chip;
@@ -857,6 +869,7 @@ static struct lp55xx_device_config lp5523_cfg = {
.max_channel = LP5523_MAX_LEDS,
.post_init_device = lp5523_post_init_device,
.brightness_fn = lp5523_led_brightness,
+ .color_intensity_fn = lp5523_led_intensity,
.set_led_current = lp5523_set_led_current,
.firmware_cb = lp5523_firmware_loaded,
.run_engine = lp5523_run_engine,
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 44ced02b49f9..a5efe2407832 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -136,9 +136,26 @@ static int lp55xx_set_brightness(struct led_classdev *cdev,
{
struct lp55xx_led *led = cdev_to_lp55xx_led(cdev);
struct lp55xx_device_config *cfg = led->chip->cfg;
+ int adj_value[LED_COLOR_ID_MAX];
+ int ret;
+ int i;
+
+ if (led->mc_cdev.num_leds > 1) {
+ led_mc_calc_brightness(&led->mc_cdev,
+ brightness, adj_value);
+ for (i = 0; i < led->mc_cdev.num_leds; i++) {
+ led->brightness = adj_value[i];
+ ret = cfg->color_intensity_fn(led,
+ led->grouped_channels[i]);
+ if (ret)
+ break;
+ }
+ } else {
+ led->brightness = (u8)brightness;
+ ret = cfg->brightness_fn(led);
+ }
- led->brightness = (u8)brightness;
- return cfg->brightness_fn(led);
+ return ret;
}
static int lp55xx_init_led(struct lp55xx_led *led,
@@ -147,9 +164,9 @@ static int lp55xx_init_led(struct lp55xx_led *led,
struct lp55xx_platform_data *pdata = chip->pdata;
struct lp55xx_device_config *cfg = chip->cfg;
struct device *dev = &chip->cl->dev;
+ int max_channel = cfg->max_channel;
char name[32];
int ret;
- int max_channel = cfg->max_channel;
if (chan >= max_channel) {
dev_err(dev, "invalid channel: %d / %d\n", chan, max_channel);
@@ -159,10 +176,35 @@ static int lp55xx_init_led(struct lp55xx_led *led,
if (pdata->led_config[chan].led_current == 0)
return 0;
+ if (pdata->led_config[chan].name) {
+ led->cdev.name = pdata->led_config[chan].name;
+ } else {
+ snprintf(name, sizeof(name), "%s:channel%d",
+ pdata->label ? : chip->cl->name, chan);
+ led->cdev.name = name;
+ }
+
+ if (pdata->led_config[chan].num_colors > 1) {
+ led->mc_cdev.led_cdev = &led->cdev;
+ led->cdev.brightness_set_blocking = lp55xx_set_brightness;
+ led->cdev.groups = lp55xx_led_groups;
+ led->mc_cdev.num_leds = pdata->led_config[chan].num_colors;
+ led->mc_cdev.available_colors = pdata->led_config[chan].available_colors;
+ memcpy(led->channel_color,
+ pdata->led_config[chan].channel_color,
+ sizeof(led->channel_color));
+ memcpy(led->grouped_channels,
+ pdata->led_config[chan].grouped_channels,
+ sizeof(led->grouped_channels));
+ } else {
+
+ led->cdev.default_trigger = pdata->led_config[chan].default_trigger;
+ led->cdev.brightness_set_blocking = lp55xx_set_brightness;
+ } led->cdev.groups = lp55xx_led_groups;
+
led->led_current = pdata->led_config[chan].led_current;
led->max_current = pdata->led_config[chan].max_current;
led->chan_nr = pdata->led_config[chan].chan_nr;
- led->cdev.default_trigger = pdata->led_config[chan].default_trigger;
if (led->chan_nr >= max_channel) {
dev_err(dev, "Use channel numbers between 0 and %d\n",
@@ -170,18 +212,11 @@ static int lp55xx_init_led(struct lp55xx_led *led,
return -EINVAL;
}
- led->cdev.brightness_set_blocking = lp55xx_set_brightness;
- led->cdev.groups = lp55xx_led_groups;
+ if (pdata->led_config[chan].num_colors > 1)
+ ret = led_classdev_multicolor_register(dev, &led->mc_cdev);
+ else
+ ret = led_classdev_register(dev, &led->cdev);
- if (pdata->led_config[chan].name) {
- led->cdev.name = pdata->led_config[chan].name;
- } else {
- snprintf(name, sizeof(name), "%s:channel%d",
- pdata->label ? : chip->cl->name, chan);
- led->cdev.name = name;
- }
-
- ret = led_classdev_register(dev, &led->cdev);
if (ret) {
dev_err(dev, "led register err: %d\n", ret);
return ret;
@@ -466,7 +501,6 @@ int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip)
dev_err(&chip->cl->dev, "empty brightness configuration\n");
return -EINVAL;
}
-
for (i = 0; i < num_channels; i++) {
/* do not initialize channels that are not connected */
@@ -538,6 +572,38 @@ void lp55xx_unregister_sysfs(struct lp55xx_chip *chip)
}
EXPORT_SYMBOL_GPL(lp55xx_unregister_sysfs);
+static int lp5xx_parse_channel_child(struct device_node *np,
+ struct lp55xx_led_config *cfg,
+ int chan_num)
+{
+ struct device_node *child;
+ int num_colors = 0;
+ u32 color_id;
+ u32 led_number;
+ int ret;
+
+ cfg[chan_num].default_trigger =
+ of_get_property(np, "linux,default-trigger", NULL);
+
+ for_each_child_of_node(np, child) {
+ of_property_read_string(child, "chan-name",
+ &cfg[chan_num].name);
+ of_property_read_u8(child, "led-cur",
+ &cfg[chan_num].led_current);
+ of_property_read_u8(child, "max-cur",
+ &cfg[chan_num].max_current);
+ of_property_read_u32(child, "color", &color_id);
+ cfg[chan_num].channel_color[num_colors] = color_id;
+ set_bit(color_id, &cfg[chan_num].available_colors);
+ ret = of_property_read_u32(child, "reg", &led_number);
+ cfg[chan_num].grouped_channels[num_colors] = led_number;
+ num_colors++;
+ }
+ cfg[chan_num].num_colors = num_colors;
+
+ return 0;
+}
+
struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev,
struct device_node *np)
{
@@ -545,7 +611,10 @@ struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev,
struct lp55xx_platform_data *pdata;
struct lp55xx_led_config *cfg;
int num_channels;
+ int channel_color;
+ u32 led_number;
int i = 0;
+ int ret;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@@ -565,13 +634,31 @@ struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev,
pdata->num_channels = num_channels;
for_each_child_of_node(np, child) {
- cfg[i].chan_nr = i;
+ ret = of_property_read_u32(child, "color", &channel_color);
+ if (ret) {
+ dev_err(dev,"Missing color property setting white\n");
+ channel_color = LED_COLOR_ID_WHITE;
+ }
- of_property_read_string(child, "chan-name", &cfg[i].name);
- of_property_read_u8(child, "led-cur", &cfg[i].led_current);
- of_property_read_u8(child, "max-cur", &cfg[i].max_current);
- cfg[i].default_trigger =
- of_get_property(child, "linux,default-trigger", NULL);
+ if (channel_color == LED_COLOR_ID_MULTI)
+ lp5xx_parse_channel_child(child, cfg, i);
+ else {
+ of_property_read_string(child, "chan-name",
+ &cfg[i].name);
+ of_property_read_u8(child, "led-cur",
+ &cfg[i].led_current);
+ of_property_read_u8(child, "max-cur",
+ &cfg[i].max_current);
+ cfg[i].default_trigger =
+ of_get_property(child, "linux,default-trigger",
+ NULL);
+ of_property_read_u32(child, "reg", &led_number);
+
+ if (led_number < 0 || led_number > 6)
+ return ERR_PTR(EINVAL);
+
+ cfg[i].chan_nr = led_number;
+ }
i++;
}
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index 783ed5103ce5..d9c114259dcb 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -12,6 +12,8 @@
#ifndef _LEDS_LP55XX_COMMON_H
#define _LEDS_LP55XX_COMMON_H
+#include <linux/led-class-multicolor.h>
+
enum lp55xx_engine_index {
LP55XX_ENGINE_INVALID,
LP55XX_ENGINE_1,
@@ -109,6 +111,9 @@ struct lp55xx_device_config {
/* access brightness register */
int (*brightness_fn)(struct lp55xx_led *led);
+ /* access specific brightness register */
+ int (*color_intensity_fn)(struct lp55xx_led *led, int chan_num);
+
/* current setting function */
void (*set_led_current) (struct lp55xx_led *led, u8 led_current);
@@ -159,6 +164,7 @@ struct lp55xx_chip {
* struct lp55xx_led
* @chan_nr : Channel number
* @cdev : LED class device
+ * @mc_cdev : Multi color class device
* @led_current : Current setting at each led channel
* @max_current : Maximun current at each led channel
* @brightness : Brightness value
@@ -167,9 +173,12 @@ struct lp55xx_chip {
struct lp55xx_led {
int chan_nr;
struct led_classdev cdev;
+ struct led_classdev_mc mc_cdev;
u8 led_current;
u8 max_current;
u8 brightness;
+ int channel_color[LED_COLOR_ID_MAX];
+ int grouped_channels[LED_COLOR_ID_MAX];
struct lp55xx_chip *chip;
};
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h
index 96a787100fda..0ac29f537ab6 100644
--- a/include/linux/platform_data/leds-lp55xx.h
+++ b/include/linux/platform_data/leds-lp55xx.h
@@ -12,6 +12,8 @@
#ifndef _LEDS_LP55XX_H
#define _LEDS_LP55XX_H
+#include <linux/led-class-multicolor.h>
+
/* Clock configuration */
#define LP55XX_CLOCK_AUTO 0
#define LP55XX_CLOCK_INT 1
@@ -23,6 +25,10 @@ struct lp55xx_led_config {
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
+ int num_colors;
+ unsigned long available_colors;
+ u32 channel_color[LED_COLOR_ID_MAX];
+ int grouped_channels[LED_COLOR_ID_MAX];
};
struct lp55xx_predef_pattern {
--
2.22.0.214.g8dca754b1e
next prev parent reply other threads:[~2019-09-20 17:38 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-20 17:41 [PATCH v8 0/9] Multicolor FW v8 update Dan Murphy
2019-09-20 17:41 ` [PATCH v8 1/9] leds: multicolor: Add sysfs interface definition Dan Murphy
2019-09-21 10:55 ` Jacek Anaszewski
2019-09-23 14:23 ` Dan Murphy
2019-09-20 17:41 ` [PATCH v8 2/9] documention: leds: Add multicolor class documentation Dan Murphy
2019-09-21 12:28 ` Jacek Anaszewski
2019-09-23 14:50 ` Dan Murphy
2019-09-23 21:21 ` Jacek Anaszewski
2019-09-20 17:41 ` [PATCH v8 3/9] dt: bindings: Add multicolor class dt bindings documention Dan Murphy
2019-09-21 12:57 ` Jacek Anaszewski
2019-09-23 14:52 ` Dan Murphy
2019-09-20 17:41 ` [PATCH v8 4/9] dt-bindings: leds: Add multicolor ID to the color ID list Dan Murphy
2019-09-21 12:58 ` Jacek Anaszewski
2019-09-20 17:41 ` [PATCH v8 5/9] " Dan Murphy
2019-09-21 12:59 ` Jacek Anaszewski
2019-09-20 17:41 ` [PATCH v8 6/9] leds: multicolor: Introduce a multicolor class definition Dan Murphy
2019-09-21 13:30 ` Jacek Anaszewski
2019-09-23 15:14 ` Dan Murphy
2019-09-23 21:36 ` Jacek Anaszewski
2019-09-21 18:08 ` Jacek Anaszewski
2019-09-23 15:11 ` Dan Murphy
2019-09-20 17:41 ` [PATCH v8 7/9] dt: bindings: lp50xx: Introduce the lp50xx family of RGB drivers Dan Murphy
2019-09-21 15:13 ` Jacek Anaszewski
2019-09-23 15:28 ` Dan Murphy
2019-09-23 21:42 ` Jacek Anaszewski
2019-09-24 14:52 ` Dan Murphy
2019-09-20 17:41 ` [PATCH v8 8/9] leds: lp50xx: Add the LP50XX family of the RGB LED driver Dan Murphy
2019-09-21 15:11 ` Jacek Anaszewski
2019-09-23 17:56 ` Dan Murphy
2019-09-23 21:59 ` Jacek Anaszewski
2019-09-20 17:41 ` Dan Murphy [this message]
2019-09-21 18:06 ` [PATCH v8 9/9] leds: Update the lp55xx to use the multi color framework Jacek Anaszewski
[not found] ` <b3ba9d9f-5267-8184-e858-e09b4debcdb6@ti.com>
2019-09-23 22:13 ` Jacek Anaszewski
2019-09-22 8:29 ` kbuild test robot
2019-09-20 17:44 ` [PATCH v8 0/9] Multicolor FW v8 update Randy Dunlap
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190920174139.30079-10-dmurphy@ti.com \
--to=dmurphy@ti.com \
--cc=jacek.anaszewski@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-leds@vger.kernel.org \
--cc=pavel@ucw.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).