linux-kernel - [PATCH v10 13/16] leds: lp5523: Update the lp5523 code to add intensity function

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20191001145620.11123-14-dmurphy@ti.com>
Date:   Tue, 1 Oct 2019 09:56:17 -0500
From:   Dan Murphy <dmurphy@...com>
To:     <jacek.anaszewski@...il.com>, <pavel@....cz>
CC:     <linux-leds@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Dan Murphy <dmurphy@...com>
Subject: [PATCH v10 13/16] leds: lp5523: Update the lp5523 code to add intensity function

Add the intensity function call back to support the multicolor
framework.  This function allows setting a specific brightness on
a specific channel.

Signed-off-by: Dan Murphy <dmurphy@...com>
---
 drivers/leds/leds-lp5523.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index d0b931a136b9..07484fc2f715 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -791,6 +791,19 @@ static ssize_t store_master_fader_leds(struct device *dev,
 	return ret;
 }
 
+static int lp5523_led_intensity(struct lp55xx_led *led, int chan_num,
+				int brightness)
+{
+	struct lp55xx_chip *chip = led->chip;
+	int ret;
+
+	mutex_lock(&chip->lock);
+	ret = lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + chan_num,
+			   brightness);
+	mutex_unlock(&chip->lock);
+	return ret;
+}
+
 static int lp5523_led_brightness(struct lp55xx_led *led)
 {
 	struct lp55xx_chip *chip = led->chip;
@@ -857,6 +870,7 @@ 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,
-- 
2.22.0.214.g8dca754b1e