| /* |
| * Copyright (c) 2011, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include<dev/pm8921_leds.h> |
| #include<dev/pm8921.h> |
| |
| void led_tests() |
| { |
| uint32_t duty_us, period_us; |
| |
| /* 50% Duty cycle */ |
| duty_us = 500000; |
| period_us = 1000000; |
| |
| /* Configure PM8921_ID_LED_0 from PWM2*/ |
| pm8921_config_led_current(PM8921_ID_LED_0, 2, PWM2, 1); |
| |
| /* PWM2 for PM8921_ID_LED_0 is LPG 5 |
| * Configure and enable lpg5 |
| */ |
| pm_set_pwm_config(5, duty_us, period_us, &pmic); |
| pm_pwm_channel_enable(5, &pmic); |
| |
| /* Configure and enable lpg0 for panel backlight*/ |
| pm_set_pwm_config(0, duty_us, period_us, &pmic); |
| pm_pwm_channel_enable(0, &pmic); |
| |
| mdelay(10000); |
| |
| /* Configure PM8921_ID_LED_1 also from PWM2*/ |
| pm8921_config_led_current(PM8921_ID_LED_1, 2, PWM2, 1); |
| mdelay(10000); |
| |
| /* Disable PM8921_ID_LED_0 */ |
| pm8921_config_led_current(PM8921_ID_LED_0, 2, 2, 0); |
| |
| /* Turn on GPIO 24 through LPG 0 |
| * Will be reconfigured during display_init |
| */ |
| panel_backlight_on_pwm(); |
| |
| mdelay(10000); |
| |
| /* Disable PM8921_ID_LED_1 */ |
| pm8921_config_led_current(PM8921_ID_LED_1, 2, 2, 0); |
| } |