ARM: OMAP: Use 32kHz clock source in omap-pwm-led

Change clock source in omap-pwm-led to 32 kHz to allow sleeping while LED is
being blinked.
Signed-off-by: Timo Teras <timo.teras@solidboot.com>
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>

drivers/leds/leds-omap-pwm.c

@@ -69,7 +69,7 @@ static void omap_pwm_led_power_on(struct omap_pwm_led *led)
 	led->powered = 1;
 
 	/* Select clock */
-	omap_dm_timer_set_source(led->intensity_timer, OMAP_TIMER_SRC_SYS_CLK);
+	omap_dm_timer_set_source(led->intensity_timer, OMAP_TIMER_SRC_32_KHZ);
 
 	/* Turn voltage on */
 	if (led->pdata->set_power != NULL)