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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-29 06:53:01 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-29 06:53:01 +0400 |
| commit | 268943fb7529a15254a5247372119ba4bd735e94 (patch) | |
| tree | 790d42cfade2a35b0eec5e1b7e0ac3795d399bcc /drivers/leds/leds-pwm.c | |
| parent | 2ad48ee810335bdd99de96e1a0796ba34c0e8301 (diff) | |
| parent | 3cb6f44aedf519dce4a9106dec675b94d675c539 (diff) | |
| download | linux-268943fb7529a15254a5247372119ba4bd735e94.tar.xz | |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem update from Bryan Wu:
"Basically this cycle is mostly cleanup for LED subsystem"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: s3c24xx: Remove hardware.h inclusion
leds: replace list_for_each with list_for_each_entry
leds: kirkwood: Cleanup in header files
leds: pwm: Remove a warning on non-DT platforms
leds: leds-pwm: fix duty time overflow.
leds: leds-mc13783: Remove unneeded mc13xxx_{un}lock
leds: leds-mc13783: Remove duplicate field in platform data
drivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base'
leds: lp5523: Support LED MUX configuration on running a pattern
leds: lp5521/5523: Fix multiple engine usage bug
LEDS: tca6507 - fix up some comments.
LEDS: tca6507: add device-tree support for GPIO configuration.
LEDS: tca6507 - fix bugs in parsing of device-tree configuration.
Diffstat (limited to 'drivers/leds/leds-pwm.c')
| -rw-r--r-- | drivers/leds/leds-pwm.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index b31d8e99c419..605047428b5a 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -66,9 +66,11 @@ static void led_pwm_set(struct led_classdev *led_cdev, struct led_pwm_data *led_dat = container_of(led_cdev, struct led_pwm_data, cdev); unsigned int max = led_dat->cdev.max_brightness; - unsigned int period = led_dat->period; + unsigned long long duty = led_dat->period; - led_dat->duty = brightness * period / max; + duty *= brightness; + do_div(duty, max); + led_dat->duty = duty; if (led_dat->can_sleep) schedule_work(&led_dat->work); @@ -85,11 +87,10 @@ static inline size_t sizeof_pwm_leds_priv(int num_leds) static int led_pwm_create_of(struct platform_device *pdev, struct led_pwm_priv *priv) { - struct device_node *node = pdev->dev.of_node; struct device_node *child; int ret; - for_each_child_of_node(node, child) { + for_each_child_of_node(pdev->dev.of_node, child) { struct led_pwm_data *led_dat = &priv->leds[priv->num_leds]; led_dat->cdev.name = of_get_property(child, "label", |