msm: board-8960: Add PWM specific config. for LED driver
PMIC LEDs can be driven using PWM mode. Add platform
configuration data for PWM mode.
Change-Id: Ied64b443eb0e41e9d3207cdce2cdbd61dbe14b14
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-msm8960.c b/arch/arm/mach-msm/board-msm8960.c
index 06118f8..da49082 100644
--- a/arch/arm/mach-msm/board-msm8960.c
+++ b/arch/arm/mach-msm/board-msm8960.c
@@ -4049,15 +4049,22 @@
};
#define PM8921_LC_LED_MAX_CURRENT 4 /* I = 4mA */
+#define PM8XXX_LED_PWM_PERIOD 1000
+#define PM8XXX_LED_PWM_DUTY_MS 20
+/**
+ * PM8XXX_PWM_CHANNEL_NONE shall be used when LED shall not be
+ * driven using PWM feature.
+ */
+#define PM8XXX_PWM_CHANNEL_NONE -1
static struct led_info pm8921_led_info[] = {
[0] = {
- .name = "led:usb",
- .default_trigger = "usb-online",
+ .name = "led:battery_charging",
+ .default_trigger = "battery-charging",
},
[1] = {
- .name = "led:ac",
- .default_trigger = "ac-online",
+ .name = "led:battery_full",
+ .default_trigger = "battery-full",
},
};
@@ -4066,16 +4073,37 @@
.leds = pm8921_led_info,
};
+static int pm8921_led0_pwm_duty_pcts[56] = {
+ 1, 4, 8, 12, 16, 20, 24, 28, 32, 36,
+ 40, 44, 46, 52, 56, 60, 64, 68, 72, 76,
+ 80, 84, 88, 92, 96, 100, 100, 100, 98, 95,
+ 92, 88, 84, 82, 78, 74, 70, 66, 62, 58,
+ 58, 54, 50, 48, 42, 38, 34, 30, 26, 22,
+ 14, 10, 6, 4, 1
+};
+
+static struct pm8xxx_pwm_duty_cycles pm8921_led0_pwm_duty_cycles = {
+ .duty_pcts = (int *)&pm8921_led0_pwm_duty_pcts,
+ .num_duty_pcts = ARRAY_SIZE(pm8921_led0_pwm_duty_pcts),
+ .duty_ms = PM8XXX_LED_PWM_DUTY_MS,
+ .start_idx = 0,
+};
+
static struct pm8xxx_led_config pm8921_led_configs[] = {
[0] = {
.id = PM8XXX_ID_LED_0,
- .mode = PM8XXX_LED_MODE_MANUAL,
+ .mode = PM8XXX_LED_MODE_PWM2,
.max_current = PM8921_LC_LED_MAX_CURRENT,
+ .pwm_channel = 5,
+ .pwm_period_us = PM8XXX_LED_PWM_PERIOD,
+ .pwm_duty_cycles = &pm8921_led0_pwm_duty_cycles,
},
[1] = {
.id = PM8XXX_ID_LED_1,
- .mode = PM8XXX_LED_MODE_MANUAL,
+ .mode = PM8XXX_LED_MODE_PWM1,
.max_current = PM8921_LC_LED_MAX_CURRENT,
+ .pwm_channel = 4,
+ .pwm_period_us = PM8XXX_LED_PWM_PERIOD,
},
};